* @copyright 1997-2006 The PHP Group * @license http://www.php.net/license/3_01.txt PHP License 3.01 * @version CVS: $Id: DataObject.php 320069 2011-11-28 04:34:08Z alan_k $ * @link http://pear.php.net/package/DB_DataObject */ /* =========================================================================== * * !!!!!!!!!!!!! W A R N I N G !!!!!!!!!!! * * THIS MAY SEGFAULT PHP IF YOU ARE USING THE ZEND OPTIMIZER (to fix it, * just add "define('DB_DATAOBJECT_NO_OVERLOAD',true);" before you include * this file. reducing the optimization level may also solve the segfault. * =========================================================================== */ /** * The main "DB_DataObject" class is really a base class for your own tables classes * * // Set up the class by creating an ini file (refer to the manual for more details * [DB_DataObject] * database = mysql:/username:password@host/database * schema_location = /home/myapplication/database * class_location = /home/myapplication/DBTables/ * clase_prefix = DBTables_ * * * //Start and initialize...................... - dont forget the & * $config = parse_ini_file('example.ini',true); * $options = &PEAR::getStaticProperty('DB_DataObject','options'); * $options = $config['DB_DataObject']; * * // example of a class (that does not use the 'auto generated tables data') * class mytable extends DB_DataObject { * // mandatory - set the table * var $_database_dsn = "mysql://username:password@localhost/database"; * var $__table = "mytable"; * function table() { * return array( * 'id' => 1, // integer or number * 'name' => 2, // string * ); * } * function keys() { * return array('id'); * } * } * * // use in the application * * * Simple get one row * * $instance = new mytable; * $instance->get("id",12); * echo $instance->somedata; * * * Get multiple rows * * $instance = new mytable; * $instance->whereAdd("ID > 12"); * $instance->whereAdd("ID < 14"); * $instance->find(); * while ($instance->fetch()) { * echo $instance->somedata; * } /** * Needed classes * - we use getStaticProperty from PEAR pretty extensively (cant remove it ATM) */ require_once 'PEAR.php'; /** * We are duping fetchmode constants to be compatible with * both DB and MDB2 */ define('DB_DATAOBJECT_FETCHMODE_ORDERED',1); define('DB_DATAOBJECT_FETCHMODE_ASSOC',2); /** * these are constants for the get_table array * user to determine what type of escaping is required around the object vars. */ define('DB_DATAOBJECT_INT', 1); // does not require '' define('DB_DATAOBJECT_STR', 2); // requires '' define('DB_DATAOBJECT_DATE', 4); // is date #TODO define('DB_DATAOBJECT_TIME', 8); // is time #TODO define('DB_DATAOBJECT_BOOL', 16); // is boolean #TODO define('DB_DATAOBJECT_TXT', 32); // is long text #TODO define('DB_DATAOBJECT_BLOB', 64); // is blob type define('DB_DATAOBJECT_NOTNULL', 128); // not null col. define('DB_DATAOBJECT_MYSQLTIMESTAMP' , 256); // mysql timestamps (ignored by update/insert) /* * Define this before you include DataObjects.php to disable overload - if it segfaults due to Zend optimizer.. */ //define('DB_DATAOBJECT_NO_OVERLOAD',true) /** * Theses are the standard error codes, most methods will fail silently - and return false * to access the error message either use $table->_lastError * or $last_error = PEAR::getStaticProperty('DB_DataObject','lastError'); * the code is $last_error->code, and the message is $last_error->message (a standard PEAR error) */ define('DB_DATAOBJECT_ERROR_INVALIDARGS', -1); // wrong args to function define('DB_DATAOBJECT_ERROR_NODATA', -2); // no data available define('DB_DATAOBJECT_ERROR_INVALIDCONFIG', -3); // something wrong with the config define('DB_DATAOBJECT_ERROR_NOCLASS', -4); // no class exists define('DB_DATAOBJECT_ERROR_INVALID_CALL' ,-7); // overlad getter/setter failure /** * Used in methods like delete() and count() to specify that the method should * build the condition only out of the whereAdd's and not the object parameters. */ define('DB_DATAOBJECT_WHEREADD_ONLY', true); /** * * storage for connection and result objects, * it is done this way so that print_r()'ing the is smaller, and * it reduces the memory size of the object. * -- future versions may use $this->_connection = & PEAR object.. * although will need speed tests to see how this affects it. * - includes sub arrays * - connections = md5 sum mapp to pear db object * - results = [id] => map to pear db object * - resultseq = sequence id for results & results field * - resultfields = [id] => list of fields return from query (for use with toArray()) * - ini = mapping of database to ini file results * - links = mapping of database to links file * - lasterror = pear error objects for last error event. * - config = aliased view of PEAR::getStaticPropery('DB_DataObject','options') * done for performance. * - array of loaded classes by autoload method - to stop it doing file access request over and over again! */ $GLOBALS['_DB_DATAOBJECT']['RESULTS'] = array(); $GLOBALS['_DB_DATAOBJECT']['RESULTSEQ'] = 1; $GLOBALS['_DB_DATAOBJECT']['RESULTFIELDS'] = array(); $GLOBALS['_DB_DATAOBJECT']['CONNECTIONS'] = array(); $GLOBALS['_DB_DATAOBJECT']['INI'] = array(); $GLOBALS['_DB_DATAOBJECT']['LINKS'] = array(); $GLOBALS['_DB_DATAOBJECT']['SEQUENCE'] = array(); $GLOBALS['_DB_DATAOBJECT']['LASTERROR'] = null; $GLOBALS['_DB_DATAOBJECT']['CONFIG'] = array(); $GLOBALS['_DB_DATAOBJECT']['CACHE'] = array(); $GLOBALS['_DB_DATAOBJECT']['OVERLOADED'] = false; $GLOBALS['_DB_DATAOBJECT']['QUERYENDTIME'] = 0; // this will be horrifically slow!!!! // these two are BC/FC handlers for call in PHP4/5 if (!defined('DB_DATAOBJECT_NO_OVERLOAD')) { class DB_DataObject_Overload { function __call($method,$args) { $return = null; $this->_call($method,$args,$return); return $return; } function __sleep() { return array_keys(get_object_vars($this)) ; } } } else { class DB_DataObject_Overload {} } /* * * @package DB_DataObject * @author Alan Knowles * @since PHP 4.0 */ class DB_DataObject extends DB_DataObject_Overload { /** * The Version - use this to check feature changes * * @access private * @var string */ var $_DB_DataObject_version = "1.11.3"; /** * The Database table (used by table extends) * * @access private * @var string */ var $__table = ''; // database table /** * The Number of rows returned from a query * * @access public * @var int */ var $N = 0; // Number of rows returned from a query /* ============================================================= */ /* Major Public Methods */ /* (designed to be optionally then called with parent::method()) */ /* ============================================================= */ /** * Get a result using key, value. * * for example * $object->get("ID",1234); * Returns Number of rows located (usually 1) for success, * and puts all the table columns into this classes variables * * see the fetch example on how to extend this. * * if no value is entered, it is assumed that $key is a value * and get will then use the first key in keys() * to obtain the key. * * @param string $k column * @param string $v value * @access public * @return int No. of rows */ function get($k = null, $v = null) { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } $keys = array(); if ($v === null) { $v = $k; $keys = $this->keys(); if (!$keys) { $this->raiseError("No Keys available for {$this->tableName()}", DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } $k = $keys[0]; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("$k $v " .print_r($keys,true), "GET"); } if ($v === null) { $this->raiseError("No Value specified for get", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } $this->$k = $v; return $this->find(1); } /** * Get the value of the primary id * * While I normally use 'id' as the PRIMARY KEY value, some database use * {table}_id as the column name. * * To save a bit of typing, * * $id = $do->pid(); * * @return the id */ function pid() { $keys = $this->keys(); if (!$keys) { $this->raiseError("No Keys available for {$this->tableName()}", DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } $k = $keys[0]; if (empty($this->$k)) { // we do not $this->raiseError("pid() called on Object where primary key value not available", DB_DATAOBJECT_ERROR_NODATA); return false; } return $this->$k; } /** * build the basic select query. * * @access private */ function _build_select() { global $_DB_DATAOBJECT; $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']); if ($quoteIdentifiers) { $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; } $tn = ($quoteIdentifiers ? $DB->quoteIdentifier($this->tableName()) : $this->tableName()) ; if (!empty($this->_query['derive_table']) && !empty($this->_query['derive_select']) ) { // this is a derived select.. // not much support in the api yet.. $sql = 'SELECT ' . $this->_query['derive_select'] .' FROM ( SELECT'. $this->_query['data_select'] . " \n" . " FROM $tn " . $this->_query['useindex'] . " \n" . $this->_join . " \n" . $this->_query['condition'] . " \n" . $this->_query['group_by'] . " \n" . $this->_query['having'] . " \n" . ') ' . $this->_query['derive_table']; return $sql; } $sql = 'SELECT ' . $this->_query['data_select'] . " \n" . " FROM $tn " . $this->_query['useindex'] . " \n" . $this->_join . " \n" . $this->_query['condition'] . " \n" . $this->_query['group_by'] . " \n" . $this->_query['having'] . " \n"; return $sql; } /** * find results, either normal or crosstable * * for example * * $object = new mytable(); * $object->ID = 1; * $object->find(); * * * will set $object->N to number of rows, and expects next command to fetch rows * will return $object->N * * if an error occurs $object->N will be set to false and return value will also be false; * if numRows is not supported it will * * * @param boolean $n Fetch first result * @access public * @return mixed (number of rows returned, or true if numRows fetching is not supported) */ function find($n = false) { global $_DB_DATAOBJECT; if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug($n, "find",1); } if (!$this->__table) { // xdebug can backtrace this! trigger_error("NO \$__table SPECIFIED in class definition",E_USER_ERROR); } $this->N = 0; $query_before = $this->_query; $this->_build_condition($this->table()) ; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $sql = $this->_build_select(); foreach ($this->_query['unions'] as $union_ar) { $sql .= $union_ar[1] . $union_ar[0]->_build_select() . " \n"; } $sql .= $this->_query['order_by'] . " \n"; /* We are checking for method modifyLimitQuery as it is PEAR DB specific */ if ((!isset($_DB_DATAOBJECT['CONFIG']['db_driver'])) || ($_DB_DATAOBJECT['CONFIG']['db_driver'] == 'DB')) { /* PEAR DB specific */ if (isset($this->_query['limit_start']) && strlen($this->_query['limit_start'] . $this->_query['limit_count'])) { $sql = $DB->modifyLimitQuery($sql,$this->_query['limit_start'], $this->_query['limit_count']); } } else { /* theoretically MDB2! */ if (isset($this->_query['limit_start']) && strlen($this->_query['limit_start'] . $this->_query['limit_count'])) { $DB->setLimit($this->_query['limit_count'],$this->_query['limit_start']); } } $err = $this->_query($sql); if (is_a($err,'PEAR_Error')) { return false; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("CHECK autofetchd $n", "find", 1); } // find(true) $ret = $this->N; if (!$ret && !empty($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid])) { // clear up memory if nothing found!? unset($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid]); } if ($n && $this->N > 0 ) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("ABOUT TO AUTOFETCH", "find", 1); } $fs = $this->fetch(); // if fetch returns false (eg. failed), then the backend doesnt support numRows (eg. ret=true) // - hence find() also returns false.. $ret = ($ret === true) ? $fs : $ret; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("DONE", "find", 1); } $this->_query = $query_before; return $ret; } /** * fetches next row into this objects var's * * returns 1 on success 0 on failure * * * * Example * $object = new mytable(); * $object->name = "fred"; * $object->find(); * $store = array(); * while ($object->fetch()) { * echo $this->ID; * $store[] = $object; // builds an array of object lines. * } * * to add features to a fetch * function fetch () { * $ret = parent::fetch(); * $this->date_formated = date('dmY',$this->date); * return $ret; * } * * @access public * @return boolean on success */ function fetch() { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } if (empty($this->N)) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("No data returned from FIND (eg. N is 0)","FETCH", 3); } return false; } if (empty($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid]) || !is_object($result = $_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid])) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug('fetched on object after fetch completed (no results found)'); } return false; } $array = $result->fetchRow(DB_DATAOBJECT_FETCHMODE_ASSOC); if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug(serialize($array),"FETCH"); } // fetched after last row.. if ($array === null) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $t= explode(' ',microtime()); $this->debug("Last Data Fetch'ed after " . ($t[0]+$t[1]- $_DB_DATAOBJECT['QUERYENDTIME'] ) . " seconds", "FETCH", 1); } // reduce the memory usage a bit... (but leave the id in, so count() works ok on it) unset($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid]); // we need to keep a copy of resultfields locally so toArray() still works // however we dont want to keep it in the global cache.. if (!empty($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid])) { $this->_resultFields = $_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid]; unset($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid]); } // this is probably end of data!! //DB_DataObject::raiseError("fetch: no data returned", DB_DATAOBJECT_ERROR_NODATA); return false; } // make sure resultFields is always empty.. $this->_resultFields = false; if (!isset($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid])) { // note: we dont declare this to keep the print_r size down. $_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid]= array_flip(array_keys($array)); } $replace = array('.', ' '); foreach($array as $k=>$v) { // use strpos as str_replace is slow. $kk = (strpos($k, '.') === false && strpos($k, ' ') === false) ? $k : str_replace($replace, '_', $k); if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("$kk = ". $array[$k], "fetchrow LINE", 3); } $this->$kk = $array[$k]; } // set link flag $this->_link_loaded=false; if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("{$this->tableName()} DONE", "fetchrow",2); } if (($this->_query !== false) && empty($_DB_DATAOBJECT['CONFIG']['keep_query_after_fetch'])) { $this->_query = false; } return true; } /** * fetches all results as an array, * * return format is dependant on args. * if selectAdd() has not been called on the object, then it will add the correct columns to the query. * * A) Array of values (eg. a list of 'id') * * $x = DB_DataObject::factory('mytable'); * $x->whereAdd('something = 1') * $ar = $x->fetchAll('id'); * -- returns array(1,2,3,4,5) * * B) Array of values (not from table) * * $x = DB_DataObject::factory('mytable'); * $x->whereAdd('something = 1'); * $x->selectAdd(); * $x->selectAdd('distinct(group_id) as group_id'); * $ar = $x->fetchAll('group_id'); * -- returns array(1,2,3,4,5) * * * C) A key=>value associative array * * $x = DB_DataObject::factory('mytable'); * $x->whereAdd('something = 1') * $ar = $x->fetchAll('id','name'); * -- returns array(1=>'fred',2=>'blogs',3=> ....... * * D) array of objects * $x = DB_DataObject::factory('mytable'); * $x->whereAdd('something = 1'); * $ar = $x->fetchAll(); * * E) array of arrays (for example) * $x = DB_DataObject::factory('mytable'); * $x->whereAdd('something = 1'); * $ar = $x->fetchAll(false,false,'toArray'); * * * @param string|false $k key * @param string|false $v value * @param string|false $method method to call on each result to get array value (eg. 'toArray') * @access public * @return array format dependant on arguments, may be empty */ function fetchAll($k= false, $v = false, $method = false) { // should it even do this!!!?!? if ($k !== false && ( // only do this is we have not been explicit.. empty($this->_query['data_select']) || ($this->_query['data_select'] == '*') ) ) { $this->selectAdd(); $this->selectAdd($k); if ($v !== false) { $this->selectAdd($v); } } $this->find(); $ret = array(); while ($this->fetch()) { if ($v !== false) { $ret[$this->$k] = $this->$v; continue; } $ret[] = $k === false ? ($method == false ? clone($this) : $this->$method()) : $this->$k; } return $ret; } /** * Adds a condition to the WHERE statement, defaults to AND * * $object->whereAdd(); //reset or cleaer ewhwer * $object->whereAdd("ID > 20"); * $object->whereAdd("age > 20","OR"); * * @param string $cond condition * @param string $logic optional logic "OR" (defaults to "AND") * @access public * @return string|PEAR::Error - previous condition or Error when invalid args found */ function whereAdd($cond = false, $logic = 'AND') { // for PHP5.2.3 - there is a bug with setting array properties of an object. $_query = $this->_query; if (!isset($this->_query) || ($_query === false)) { return $this->raiseError( "You cannot do two queries on the same object (clone it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); } if ($cond === false) { $r = $this->_query['condition']; $_query['condition'] = ''; $this->_query = $_query; return preg_replace('/^\s+WHERE\s+/','',$r); } // check input...= 0 or ' ' == error! if (!trim($cond)) { return $this->raiseError("WhereAdd: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } $r = $_query['condition']; if ($_query['condition']) { $_query['condition'] .= " {$logic} ( {$cond} )"; $this->_query = $_query; return $r; } $_query['condition'] = " WHERE ( {$cond} ) "; $this->_query = $_query; return $r; } /** * Adds a 'IN' condition to the WHERE statement * * $object->whereAddIn('id', $array, 'int'); //minimal usage * $object->whereAddIn('price', $array, 'float', 'OR'); // cast to float, and call whereAdd with 'OR' * $object->whereAddIn('name', $array, 'string'); // quote strings * * @param string $key key column to match * @param array $list list of values to match * @param string $type string|int|integer|float|bool cast to type. * @param string $logic optional logic to call whereAdd with eg. "OR" (defaults to "AND") * @access public * @return string|PEAR::Error - previous condition or Error when invalid args found */ function whereAddIn($key, $list, $type, $logic = 'AND') { $not = ''; if ($key[0] == '!') { $not = 'NOT '; $key = substr($key, 1); } // fix type for short entry. $type = $type == 'int' ? 'integer' : $type; if ($type == 'string') { $this->_connect(); } $ar = array(); foreach($list as $k) { settype($k, $type); $ar[] = $type == 'string' ? $this->_quote($k) : $k; } if (!$ar) { return $not ? $this->_query['condition'] : $this->whereAdd("1=0"); } return $this->whereAdd("$key $not IN (". implode(',', $ar). ')', $logic ); } /** * Adds a order by condition * * $object->orderBy(); //clears order by * $object->orderBy("ID"); * $object->orderBy("ID,age"); * * @param string $order Order * @access public * @return none|PEAR::Error - invalid args only */ function orderBy($order = false) { if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($order === false) { $this->_query['order_by'] = ''; return; } // check input...= 0 or ' ' == error! if (!trim($order)) { return $this->raiseError("orderBy: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } if (!$this->_query['order_by']) { $this->_query['order_by'] = " ORDER BY {$order} "; return; } $this->_query['order_by'] .= " , {$order}"; } /** * Adds a group by condition * * $object->groupBy(); //reset the grouping * $object->groupBy("ID DESC"); * $object->groupBy("ID,age"); * * @param string $group Grouping * @access public * @return none|PEAR::Error - invalid args only */ function groupBy($group = false) { if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($group === false) { $this->_query['group_by'] = ''; return; } // check input...= 0 or ' ' == error! if (!trim($group)) { return $this->raiseError("groupBy: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } if (!$this->_query['group_by']) { $this->_query['group_by'] = " GROUP BY {$group} "; return; } $this->_query['group_by'] .= " , {$group}"; } /** * Adds a having clause * * $object->having(); //reset the grouping * $object->having("sum(value) > 0 "); * * @param string $having condition * @access public * @return none|PEAR::Error - invalid args only */ function having($having = false) { if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($having === false) { $this->_query['having'] = ''; return; } // check input...= 0 or ' ' == error! if (!trim($having)) { return $this->raiseError("Having: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } if (!$this->_query['having']) { $this->_query['having'] = " HAVING {$having} "; return; } $this->_query['having'] .= " AND {$having}"; } /** * Adds a using Index * * $object->useIndex(); //reset the use Index * $object->useIndex("some_index"); * * Note do not put unfiltered user input into theis method. * This is mysql specific at present? - might need altering to support other databases. * * @param string|array $index index or indexes to use. * @access public * @return none|PEAR::Error - invalid args only */ function useIndex($index = false) { if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($index=== false) { $this->_query['useindex'] = ''; return; } // check input...= 0 or ' ' == error! if ((is_string($index) && !trim($index)) || (is_array($index) && !count($index)) ) { return $this->raiseError("Having: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } $index = is_array($index) ? implode(', ', $index) : $index; if (!$this->_query['useindex']) { $this->_query['useindex'] = " USE INDEX ({$index}) "; return; } $this->_query['useindex'] = substr($this->_query['useindex'],0, -2) . ", {$index}) "; } /** * Sets the Limit * * $boject->limit(); // clear limit * $object->limit(12); * $object->limit(12,10); * * Note this will emit an error on databases other than mysql/postgress * as there is no 'clean way' to implement it. - you should consider refering to * your database manual to decide how you want to implement it. * * @param string $a limit start (or number), or blank to reset * @param string $b number * @access public * @return none|PEAR::Error - invalid args only */ function limit($a = null, $b = null) { if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($a === null) { $this->_query['limit_start'] = ''; $this->_query['limit_count'] = ''; return; } // check input...= 0 or ' ' == error! if ((!is_int($a) && ((string)((int)$a) !== (string)$a)) || (($b !== null) && (!is_int($b) && ((string)((int)$b) !== (string)$b)))) { return $this->raiseError("limit: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } global $_DB_DATAOBJECT; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $this->_query['limit_start'] = ($b == null) ? 0 : (int)$a; $this->_query['limit_count'] = ($b == null) ? (int)$a : (int)$b; } /** * Adds a select columns * * $object->selectAdd(); // resets select to nothing! * $object->selectAdd("*"); // default select * $object->selectAdd("unixtime(DATE) as udate"); * $object->selectAdd("DATE"); * * to prepend distict: * $object->selectAdd('distinct ' . $object->selectAdd()); * * @param string $k * @access public * @return mixed null or old string if you reset it. */ function selectAdd($k = null) { if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($k === null) { $old = $this->_query['data_select']; $this->_query['data_select'] = ''; return $old; } // check input...= 0 or ' ' == error! if (!trim($k)) { return $this->raiseError("selectAdd: No Valid Arguments", DB_DATAOBJECT_ERROR_INVALIDARGS); } if ($this->_query['data_select']) { $this->_query['data_select'] .= ', '; } $this->_query['data_select'] .= " $k "; } /** * Adds multiple Columns or objects to select with formating. * * $object->selectAs(null); // adds "table.colnameA as colnameA,table.colnameB as colnameB,......" * // note with null it will also clear the '*' default select * $object->selectAs(array('a','b'),'%s_x'); // adds "a as a_x, b as b_x" * $object->selectAs(array('a','b'),'ddd_%s','ccc'); // adds "ccc.a as ddd_a, ccc.b as ddd_b" * $object->selectAdd($object,'prefix_%s'); // calls $object->get_table and adds it all as * objectTableName.colnameA as prefix_colnameA * * @param array|object|null the array or object to take column names from. * @param string format in sprintf format (use %s for the colname) * @param string table name eg. if you have joinAdd'd or send $from as an array. * @access public * @return void */ function selectAs($from = null,$format = '%s',$tableName=false) { global $_DB_DATAOBJECT; if ($this->_query === false) { $this->raiseError( "You cannot do two queries on the same object (copy it before finding)", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if ($from === null) { // blank the '*' $this->selectAdd(); $from = $this; } $table = $this->tableName(); if (is_object($from)) { $table = $from->tableName(); $from = array_keys($from->table()); } if ($tableName !== false) { $table = $tableName; } $s = '%s'; if (!empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers'])) { $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $s = $DB->quoteIdentifier($s); $format = $DB->quoteIdentifier($format); } foreach ($from as $k) { $this->selectAdd(sprintf("{$s}.{$s} as {$format}",$table,$k,$k)); } $this->_query['data_select'] .= "\n"; } /** * Insert the current objects variables into the database * * Returns the ID of the inserted element (if auto increment or sequences are used.) * * for example * * Designed to be extended * * $object = new mytable(); * $object->name = "fred"; * echo $object->insert(); * * @access public * @return mixed false on failure, int when auto increment or sequence used, otherwise true on success */ function insert() { global $_DB_DATAOBJECT; // we need to write to the connection (For nextid) - so us the real // one not, a copyied on (as ret-by-ref fails with overload!) if (!isset($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { $this->_connect(); } $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $items = $this->table(); if (!$items) { $this->raiseError("insert:No table definition for {$this->tableName()}", DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } $options = $_DB_DATAOBJECT['CONFIG']; $datasaved = 1; $leftq = ''; $rightq = ''; $seqKeys = isset($_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()]) ? $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] : $this->sequenceKey(); $key = isset($seqKeys[0]) ? $seqKeys[0] : false; $useNative = isset($seqKeys[1]) ? $seqKeys[1] : false; $seq = isset($seqKeys[2]) ? $seqKeys[2] : false; $dbtype = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn["phptype"]; // nativeSequences or Sequences.. // big check for using sequences if (($key !== false) && !$useNative) { if (!$seq) { $keyvalue = $DB->nextId($this->tableName()); } else { $f = $DB->getOption('seqname_format'); $DB->setOption('seqname_format','%s'); $keyvalue = $DB->nextId($seq); $DB->setOption('seqname_format',$f); } if (PEAR::isError($keyvalue)) { $this->raiseError($keyvalue->toString(), DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } $this->$key = $keyvalue; } // if we haven't set disable_null_strings to "full" $ignore_null = !isset($options['disable_null_strings']) || !is_string($options['disable_null_strings']) || strtolower($options['disable_null_strings']) !== 'full' ; foreach($items as $k => $v) { // if we are using autoincrement - skip the column... if ($key && ($k == $key) && $useNative) { continue; } // Ignore INTEGERS which aren't set to a value - or empty string.. if ( (!isset($this->$k) || ($v == 1 && $this->$k === '')) && $ignore_null ) { continue; } // dont insert data into mysql timestamps // use query() if you really want to do this!!!! if ($v & DB_DATAOBJECT_MYSQLTIMESTAMP) { continue; } if ($leftq) { $leftq .= ', '; $rightq .= ', '; } $leftq .= ($quoteIdentifiers ? ($DB->quoteIdentifier($k) . ' ') : "$k "); if (is_object($this->$k) && is_a($this->$k,'DB_DataObject_Cast')) { $value = $this->$k->toString($v,$DB); if (PEAR::isError($value)) { $this->raiseError($value->toString() ,DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } $rightq .= $value; continue; } if (!($v & DB_DATAOBJECT_NOTNULL) && DB_DataObject::_is_null($this,$k)) { $rightq .= " NULL "; continue; } // DATE is empty... on a col. that can be null.. // note: this may be usefull for time as well.. if (!$this->$k && (($v & DB_DATAOBJECT_DATE) || ($v & DB_DATAOBJECT_TIME)) && !($v & DB_DATAOBJECT_NOTNULL)) { $rightq .= " NULL "; continue; } if ($v & DB_DATAOBJECT_STR) { $rightq .= $this->_quote((string) ( ($v & DB_DATAOBJECT_BOOL) ? // this is thanks to the braindead idea of postgres to // use t/f for boolean. (($this->$k === 'f') ? 0 : (int)(bool) $this->$k) : $this->$k )) . " "; continue; } if (is_numeric($this->$k)) { $rightq .=" {$this->$k} "; continue; } /* flag up string values - only at debug level... !!!??? */ if (is_object($this->$k) || is_array($this->$k)) { $this->debug('ODD DATA: ' .$k . ' ' . print_r($this->$k,true),'ERROR'); } // at present we only cast to integers // - V2 may store additional data about float/int $rightq .= ' ' . intval($this->$k) . ' '; } // not sure why we let empty insert here.. - I guess to generate a blank row.. if ($leftq || $useNative) { $table = ($quoteIdentifiers ? $DB->quoteIdentifier($this->tableName()) : $this->tableName()); if (($dbtype == 'pgsql') && empty($leftq)) { $r = $this->_query("INSERT INTO {$table} DEFAULT VALUES"); } else { $r = $this->_query("INSERT INTO {$table} ($leftq) VALUES ($rightq) "); } if (PEAR::isError($r)) { $this->raiseError($r); return false; } if ($r < 1) { return 0; } // now do we have an integer key! if ($key && $useNative) { switch ($dbtype) { case 'mysql': case 'mysqli': $method = "{$dbtype}_insert_id"; $this->$key = $method( $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->connection ); break; case 'mssql': // note this is not really thread safe - you should wrapp it with // transactions = eg. // $db->query('BEGIN'); // $db->insert(); // $db->query('COMMIT'); $db_driver = empty($options['db_driver']) ? 'DB' : $options['db_driver']; $method = ($db_driver == 'DB') ? 'getOne' : 'queryOne'; $mssql_key = $DB->$method("SELECT @@IDENTITY"); if (PEAR::isError($mssql_key)) { $this->raiseError($mssql_key); return false; } $this->$key = $mssql_key; break; case 'pgsql': if (!$seq) { $seq = $DB->getSequenceName(strtolower($this->tableName())); } $db_driver = empty($options['db_driver']) ? 'DB' : $options['db_driver']; $method = ($db_driver == 'DB') ? 'getOne' : 'queryOne'; $pgsql_key = $DB->$method("SELECT currval('".$seq . "')"); if (PEAR::isError($pgsql_key)) { $this->raiseError($pgsql_key); return false; } $this->$key = $pgsql_key; break; case 'ifx': $this->$key = array_shift ( ifx_fetch_row ( ifx_query( "select DBINFO('sqlca.sqlerrd1') FROM systables where tabid=1", $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->connection, IFX_SCROLL ), "FIRST" ) ); break; } } if (isset($_DB_DATAOBJECT['CACHE'][strtolower(get_class($this))])) { $this->_clear_cache(); } if ($key) { return $this->$key; } return true; } $this->raiseError("insert: No Data specifed for query", DB_DATAOBJECT_ERROR_NODATA); return false; } /** * Updates current objects variables into the database * uses the keys() to decide how to update * Returns the true on success * * for example * * $object = DB_DataObject::factory('mytable'); * $object->get("ID",234); * $object->email="testing@test.com"; * if(!$object->update()) * echo "UPDATE FAILED"; * * to only update changed items : * $dataobject->get(132); * $original = $dataobject; // clone/copy it.. * $dataobject->setFrom($_POST); * if ($dataobject->validate()) { * $dataobject->update($original); * } // otherwise an error... * * performing global updates: * $object = DB_DataObject::factory('mytable'); * $object->status = "dead"; * $object->whereAdd('age > 150'); * $object->update(DB_DATAOBJECT_WHEREADD_ONLY); * * @param object dataobject (optional) | DB_DATAOBJECT_WHEREADD_ONLY - used to only update changed items. * @access public * @return int rows affected or false on failure */ function update($dataObject = false) { global $_DB_DATAOBJECT; // connect will load the config! $this->_connect(); $original_query = $this->_query; $items = $this->table(); // only apply update against sequence key if it is set????? $seq = $this->sequenceKey(); if ($seq[0] !== false) { $keys = array($seq[0]); if (!isset($this->{$keys[0]}) && $dataObject !== true) { $this->raiseError("update: trying to perform an update without the key set, and argument to update is not DB_DATAOBJECT_WHEREADD_ONLY ". print_r(array('seq' => $seq , 'keys'=>$keys), true), DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } } else { $keys = $this->keys(); } if (!$items) { $this->raiseError("update:No table definition for {$this->tableName()}", DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } $datasaved = 1; $settings = ''; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $dbtype = $DB->dsn["phptype"]; $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']); $options = $_DB_DATAOBJECT['CONFIG']; $ignore_null = !isset($options['disable_null_strings']) || !is_string($options['disable_null_strings']) || strtolower($options['disable_null_strings']) !== 'full' ; foreach($items as $k => $v) { // I think this is ignoring empty vlalues if ((!isset($this->$k) || ($v == 1 && $this->$k === '')) && $ignore_null ) { continue; } // ignore stuff thats // dont write things that havent changed.. if (($dataObject !== false) && isset($dataObject->$k) && ($dataObject->$k === $this->$k)) { continue; } // - dont write keys to left.!!! if (in_array($k,$keys)) { continue; } // dont insert data into mysql timestamps // use query() if you really want to do this!!!! if ($v & DB_DATAOBJECT_MYSQLTIMESTAMP) { continue; } if ($settings) { $settings .= ', '; } $kSql = ($quoteIdentifiers ? $DB->quoteIdentifier($k) : $k); if (is_object($this->$k) && is_a($this->$k,'DB_DataObject_Cast')) { $value = $this->$k->toString($v,$DB); if (PEAR::isError($value)) { $this->raiseError($value->getMessage() ,DB_DATAOBJECT_ERROR_INVALIDARG); return false; } $settings .= "$kSql = $value "; continue; } // special values ... at least null is handled... if (!($v & DB_DATAOBJECT_NOTNULL) && DB_DataObject::_is_null($this,$k)) { $settings .= "$kSql = NULL "; continue; } // DATE is empty... on a col. that can be null.. // note: this may be usefull for time as well.. if (!$this->$k && (($v & DB_DATAOBJECT_DATE) || ($v & DB_DATAOBJECT_TIME)) && !($v & DB_DATAOBJECT_NOTNULL)) { $settings .= "$kSql = NULL "; continue; } if ($v & DB_DATAOBJECT_STR) { $settings .= "$kSql = ". $this->_quote((string) ( ($v & DB_DATAOBJECT_BOOL) ? // this is thanks to the braindead idea of postgres to // use t/f for boolean. (($this->$k === 'f') ? 0 : (int)(bool) $this->$k) : $this->$k )) . ' '; continue; } if (is_numeric($this->$k)) { $settings .= "$kSql = {$this->$k} "; continue; } // at present we only cast to integers // - V2 may store additional data about float/int $settings .= "$kSql = " . intval($this->$k) . ' '; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("got keys as ".serialize($keys),3); } if ($dataObject !== true) { $this->_build_condition($items,$keys); } else { // prevent wiping out of data! if (empty($this->_query['condition'])) { $this->raiseError("update: global table update not available do \$do->whereAdd('1=1'); if you really want to do that. ", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } } // echo " $settings, $this->condition "; if ($settings && isset($this->_query) && $this->_query['condition']) { $table = ($quoteIdentifiers ? $DB->quoteIdentifier($this->tableName()) : $this->tableName()); $r = $this->_query("UPDATE {$table} SET {$settings} {$this->_query['condition']} "); // restore original query conditions. $this->_query = $original_query; if (PEAR::isError($r)) { $this->raiseError($r); return false; } if ($r < 1) { return 0; } $this->_clear_cache(); return $r; } // restore original query conditions. $this->_query = $original_query; // if you manually specified a dataobject, and there where no changes - then it's ok.. if ($dataObject !== false) { return true; } $this->raiseError( "update: No Data specifed for query $settings , {$this->_query['condition']}", DB_DATAOBJECT_ERROR_NODATA); return false; } /** * Deletes items from table which match current objects variables * * Returns the true on success * * for example * * Designed to be extended * * $object = new mytable(); * $object->ID=123; * echo $object->delete(); // builds a conditon * * $object = new mytable(); * $object->whereAdd('age > 12'); * $object->limit(1); * $object->orderBy('age DESC'); * $object->delete(true); // dont use object vars, use the conditions, limit and order. * * @param bool $useWhere (optional) If DB_DATAOBJECT_WHEREADD_ONLY is passed in then * we will build the condition only using the whereAdd's. Default is to * build the condition only using the object parameters. * * @access public * @return mixed Int (No. of rows affected) on success, false on failure, 0 on no data affected */ function delete($useWhere = false) { global $_DB_DATAOBJECT; // connect will load the config! $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']); $extra_cond = ' ' . (isset($this->_query['order_by']) ? $this->_query['order_by'] : ''); if (!$useWhere) { $keys = $this->keys(); $this->_query = array(); // as it's probably unset! $this->_query['condition'] = ''; // default behaviour not to use where condition $this->_build_condition($this->table(),$keys); // if primary keys are not set then use data from rest of object. if (!$this->_query['condition']) { $this->_build_condition($this->table(),array(),$keys); } $extra_cond = ''; } // don't delete without a condition if (($this->_query !== false) && $this->_query['condition']) { $table = ($quoteIdentifiers ? $DB->quoteIdentifier($this->tableName()) : $this->tableName()); $sql = "DELETE "; // using a joined delete. - with useWhere.. $sql .= (!empty($this->_join) && $useWhere) ? "{$table} FROM {$table} {$this->_join} " : "FROM {$table} "; $sql .= $this->_query['condition']. $extra_cond; // add limit.. if (isset($this->_query['limit_start']) && strlen($this->_query['limit_start'] . $this->_query['limit_count'])) { if (!isset($_DB_DATAOBJECT['CONFIG']['db_driver']) || ($_DB_DATAOBJECT['CONFIG']['db_driver'] == 'DB')) { // pear DB $sql = $DB->modifyLimitQuery($sql,$this->_query['limit_start'], $this->_query['limit_count']); } else { // MDB2 $DB->setLimit( $this->_query['limit_count'],$this->_query['limit_start']); } } $r = $this->_query($sql); if (PEAR::isError($r)) { $this->raiseError($r); return false; } if ($r < 1) { return 0; } $this->_clear_cache(); return $r; } else { $this->raiseError("delete: No condition specifed for query", DB_DATAOBJECT_ERROR_NODATA); return false; } } /** * fetches a specific row into this object variables * * Not recommended - better to use fetch() * * Returens true on success * * @param int $row row * @access public * @return boolean true on success */ function fetchRow($row = null) { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { $this->_loadConfig(); } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("{$this->tableName()} $row of {$this->N}", "fetchrow",3); } if (!$this->tableName()) { $this->raiseError("fetchrow: No table", DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } if ($row === null) { $this->raiseError("fetchrow: No row specified", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } if (!$this->N) { $this->raiseError("fetchrow: No results avaiable", DB_DATAOBJECT_ERROR_NODATA); return false; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("{$this->tableName()} $row of {$this->N}", "fetchrow",3); } $result = $_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid]; $array = $result->fetchrow(DB_DATAOBJECT_FETCHMODE_ASSOC,$row); if (!is_array($array)) { $this->raiseError("fetchrow: No results available", DB_DATAOBJECT_ERROR_NODATA); return false; } $replace = array('.', ' '); foreach($array as $k => $v) { // use strpos as str_replace is slow. $kk = (strpos($k, '.') === false && strpos($k, ' ') === false) ? $k : str_replace($replace, '_', $k); if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("$kk = ". $array[$k], "fetchrow LINE", 3); } $this->$kk = $array[$k]; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("{$this->tableName()} DONE", "fetchrow", 3); } return true; } /** * Find the number of results from a simple query * * for example * * $object = new mytable(); * $object->name = "fred"; * echo $object->count(); * echo $object->count(true); // dont use object vars. * echo $object->count('distinct mycol'); count distinct mycol. * echo $object->count('distinct mycol',true); // dont use object vars. * echo $object->count('distinct'); // count distinct id (eg. the primary key) * * * @param bool|string (optional) * (true|false => see below not on whereAddonly) * (string) * "DISTINCT" => does a distinct count on the tables 'key' column * otherwise => normally it counts primary keys - you can use * this to do things like $do->count('distinct mycol'); * * @param bool $whereAddOnly (optional) If DB_DATAOBJECT_WHEREADD_ONLY is passed in then * we will build the condition only using the whereAdd's. Default is to * build the condition using the object parameters as well. * * @access public * @return int */ function count($countWhat = false,$whereAddOnly = false) { global $_DB_DATAOBJECT; if (is_bool($countWhat)) { $whereAddOnly = $countWhat; } $t = clone($this); $items = $t->table(); $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']); if (!isset($t->_query)) { $this->raiseError( "You cannot do run count after you have run fetch()", DB_DATAOBJECT_ERROR_INVALIDARGS); return false; } $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; if (!$whereAddOnly && $items) { $t->_build_condition($items); } $keys = $this->keys(); if (empty($keys[0]) && (!is_string($countWhat) || (strtoupper($countWhat) == 'DISTINCT'))) { $this->raiseError( "You cannot do run count without keys - use \$do->count('id'), or use \$do->count('distinct id')';", DB_DATAOBJECT_ERROR_INVALIDARGS,PEAR_ERROR_DIE); return false; } $table = ($quoteIdentifiers ? $DB->quoteIdentifier($this->tableName()) : $this->tableName()); $key_col = empty($keys[0]) ? '' : (($quoteIdentifiers ? $DB->quoteIdentifier($keys[0]) : $keys[0])); $as = ($quoteIdentifiers ? $DB->quoteIdentifier('DATAOBJECT_NUM') : 'DATAOBJECT_NUM'); // support distinct on default keys. $countWhat = (strtoupper($countWhat) == 'DISTINCT') ? "DISTINCT {$table}.{$key_col}" : $countWhat; $countWhat = is_string($countWhat) ? $countWhat : "{$table}.{$key_col}"; $r = $t->_query( "SELECT count({$countWhat}) as $as FROM $table {$t->_join} {$t->_query['condition']}"); if (PEAR::isError($r)) { return false; } $result = $_DB_DATAOBJECT['RESULTS'][$t->_DB_resultid]; $l = $result->fetchRow(DB_DATAOBJECT_FETCHMODE_ORDERED); // free the results - essential on oracle. $t->free(); if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug('Count returned '. $l[0] ,1); } return (int) $l[0]; } /** * sends raw query to database * * Since _query has to be a private 'non overwriteable method', this is a relay * * @param string $string SQL Query * @access public * @return void or DB_Error */ function query($string) { return $this->_query($string); } /** * an escape wrapper around DB->escapeSimple() * can be used when adding manual queries or clauses * eg. * $object->query("select * from xyz where abc like '". $object->escape($_GET['name']) . "'"); * * @param string $string value to be escaped * @param bool $likeEscape escapes % and _ as well. - so like queries can be protected. * @access public * @return string */ function escape($string, $likeEscape=false) { global $_DB_DATAOBJECT; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; // mdb2 uses escape... $dd = empty($_DB_DATAOBJECT['CONFIG']['db_driver']) ? 'DB' : $_DB_DATAOBJECT['CONFIG']['db_driver']; $ret = ($dd == 'DB') ? $DB->escapeSimple($string) : $DB->escape($string); if ($likeEscape) { $ret = str_replace(array('_','%'), array('\_','\%'), $ret); } return $ret; } /* ==================================================== */ /* Major Private Vars */ /* ==================================================== */ /** * The Database connection dsn (as described in the PEAR DB) * only used really if you are writing a very simple application/test.. * try not to use this - it is better stored in configuration files.. * * @access private * @var string */ var $_database_dsn = ''; /** * The Database connection id (md5 sum of databasedsn) * * @access private * @var string */ var $_database_dsn_md5 = ''; /** * The Database name * created in __connection * * @access private * @var string */ var $_database = ''; /** * The QUERY rules * This replaces alot of the private variables * used to build a query, it is unset after find() is run. * * * * @access private * @var array */ var $_query = array( 'condition' => '', // the WHERE condition 'group_by' => '', // the GROUP BY condition 'order_by' => '', // the ORDER BY condition 'having' => '', // the HAVING condition 'useindex' => '', // the USE INDEX condition 'limit_start' => '', // the LIMIT condition 'limit_count' => '', // the LIMIT condition 'data_select' => '*', // the columns to be SELECTed 'unions' => array(), // the added unions, 'derive_table' => '', // derived table name (BETA) 'derive_select' => '', // derived table select (BETA) ); /** * Database result id (references global $_DB_DataObject[results] * * @access private * @var integer */ var $_DB_resultid; /** * ResultFields - on the last call to fetch(), resultfields is sent here, * so we can clean up the memory. * * @access public * @var array */ var $_resultFields = false; /* ============================================================== */ /* Table definition layer (started of very private but 'came out'*/ /* ============================================================== */ /** * Autoload or manually load the table definitions * * * usage : * DB_DataObject::databaseStructure( 'databasename', * parse_ini_file('mydb.ini',true), * parse_ini_file('mydb.link.ini',true)); * * obviously you dont have to use ini files.. (just return array similar to ini files..) * * It should append to the table structure array * * * @param optional string name of database to assign / read * @param optional array structure of database, and keys * @param optional array table links * * @access public * @return true or PEAR:error on wrong paramenters.. or false if no file exists.. * or the array(tablename => array(column_name=>type)) if called with 1 argument.. (databasename) */ function databaseStructure() { global $_DB_DATAOBJECT; // Assignment code if ($args = func_get_args()) { if (count($args) == 1) { // this returns all the tables and their structure.. if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("Loading Generator as databaseStructure called with args",1); } $x = new DB_DataObject; $x->_database = $args[0]; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $tables = $DB->getListOf('tables'); class_exists('DB_DataObject_Generator') ? '' : require_once 'DB/DataObject/Generator.php'; foreach($tables as $table) { $y = new DB_DataObject_Generator; $y->fillTableSchema($x->_database,$table); } return $_DB_DATAOBJECT['INI'][$x->_database]; } else { $_DB_DATAOBJECT['INI'][$args[0]] = isset($_DB_DATAOBJECT['INI'][$args[0]]) ? $_DB_DATAOBJECT['INI'][$args[0]] + $args[1] : $args[1]; if (isset($args[1])) { $_DB_DATAOBJECT['LINKS'][$args[0]] = isset($_DB_DATAOBJECT['LINKS'][$args[0]]) ? $_DB_DATAOBJECT['LINKS'][$args[0]] + $args[2] : $args[2]; } return true; } } if (!$this->_database) { $this->_connect(); } // if this table is already loaded this table.. if (!empty($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()])) { return true; } // initialize the ini data.. if empt.. if (empty($_DB_DATAOBJECT['INI'][$this->_database])) { $_DB_DATAOBJECT['INI'][$this->_database] = array(); } if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } // we do not have the data for this table yet... // if we are configured to use the proxy.. if ( !empty($_DB_DATAOBJECT['CONFIG']['proxy']) ) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("Loading Generator to fetch Schema",1); } class_exists('DB_DataObject_Generator') ? '' : require_once 'DB/DataObject/Generator.php'; $x = new DB_DataObject_Generator; $x->fillTableSchema($this->_database,$this->tableName()); return true; } // if you supply this with arguments, then it will take those // as the database and links array... $schemas = isset($_DB_DATAOBJECT['CONFIG']['schema_location']) ? array("{$_DB_DATAOBJECT['CONFIG']['schema_location']}/{$this->_database}.ini") : array() ; if (isset($_DB_DATAOBJECT['CONFIG']["ini_{$this->_database}"])) { $schemas = is_array($_DB_DATAOBJECT['CONFIG']["ini_{$this->_database}"]) ? $_DB_DATAOBJECT['CONFIG']["ini_{$this->_database}"] : explode(PATH_SEPARATOR,$_DB_DATAOBJECT['CONFIG']["ini_{$this->_database}"]); } $_DB_DATAOBJECT['INI'][$this->_database] = array(); foreach ($schemas as $ini) { if (file_exists($ini) && is_file($ini)) { $_DB_DATAOBJECT['INI'][$this->_database] = array_merge( $_DB_DATAOBJECT['INI'][$this->_database], parse_ini_file($ini, true) ); if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { if (!is_readable ($ini)) { $this->debug("ini file is not readable: $ini","databaseStructure",1); } else { $this->debug("Loaded ini file: $ini","databaseStructure",1); } } } else { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("Missing ini file: $ini","databaseStructure",1); } } } // are table name lowecased.. if (!empty($_DB_DATAOBJECT['CONFIG']['portability']) && $_DB_DATAOBJECT['CONFIG']['portability'] & 1) { foreach($_DB_DATAOBJECT['INI'][$this->_database] as $k=>$v) { // results in duplicate cols.. but not a big issue.. $_DB_DATAOBJECT['INI'][$this->_database][strtolower($k)] = $v; } } // now have we loaded the structure.. if (!empty($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()])) { return true; } // - if not try building it.. if (!empty($_DB_DATAOBJECT['CONFIG']['proxy'])) { class_exists('DB_DataObject_Generator') ? '' : require_once 'DB/DataObject/Generator.php'; $x = new DB_DataObject_Generator; $x->fillTableSchema($this->_database,$this->tableName()); // should this fail!!!??? return true; } $this->debug("Cant find database schema: {$this->_database}/{$this->tableName()} \n". "in links file data: " . print_r($_DB_DATAOBJECT['INI'],true),"databaseStructure",5); // we have to die here!! - it causes chaos if we dont (including looping forever!) $this->raiseError( "Unable to load schema for database and table (turn debugging up to 5 for full error message)", DB_DATAOBJECT_ERROR_INVALIDARGS, PEAR_ERROR_DIE); return false; } /** * Return or assign the name of the current table * * * @param string optinal table name to set * @access public * @return string The name of the current table */ function tableName() { global $_DB_DATAOBJECT; $args = func_get_args(); if (count($args)) { $this->__table = $args[0]; } if (!empty($_DB_DATAOBJECT['CONFIG']['portability']) && $_DB_DATAOBJECT['CONFIG']['portability'] & 1) { return strtolower($this->__table); } return $this->__table; } /** * Return or assign the name of the current database * * @param string optional database name to set * @access public * @return string The name of the current database */ function database() { $args = func_get_args(); if (count($args)) { $this->_database = $args[0]; } else { $this->_connect(); } return $this->_database; } /** * get/set an associative array of table columns * * @access public * @param array key=>type array * @return array (associative) */ function table() { // for temporary storage of database fields.. // note this is not declared as we dont want to bloat the print_r output $args = func_get_args(); if (count($args)) { $this->_database_fields = $args[0]; } if (isset($this->_database_fields)) { return $this->_database_fields; } global $_DB_DATAOBJECT; if (!isset($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { $this->_connect(); } if (isset($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()])) { return $_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()]; } $this->databaseStructure(); $ret = array(); if (isset($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()])) { $ret = $_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()]; } return $ret; } /** * get/set an array of table primary keys * * set usage: $do->keys('id','code'); * * This is defined in the table definition if it gets it wrong, * or you do not want to use ini tables, you can override this. * @param string optional set the key * @param * optional set more keys * @access public * @return array */ function keys() { // for temporary storage of database fields.. // note this is not declared as we dont want to bloat the print_r output $args = func_get_args(); if (count($args)) { $this->_database_keys = $args; } if (isset($this->_database_keys)) { return $this->_database_keys; } global $_DB_DATAOBJECT; if (!isset($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { $this->_connect(); } if (isset($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()."__keys"])) { return array_keys($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()."__keys"]); } $this->databaseStructure(); if (isset($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()."__keys"])) { return array_keys($_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()."__keys"]); } return array(); } /** * get/set an sequence key * * by default it returns the first key from keys() * set usage: $do->sequenceKey('id',true); * * override this to return array(false,false) if table has no real sequence key. * * @param string optional the key sequence/autoinc. key * @param boolean optional use native increment. default false * @param false|string optional native sequence name * @access public * @return array (column,use_native,sequence_name) */ function sequenceKey() { global $_DB_DATAOBJECT; // call setting if (!$this->_database) { $this->_connect(); } if (!isset($_DB_DATAOBJECT['SEQUENCE'][$this->_database])) { $_DB_DATAOBJECT['SEQUENCE'][$this->_database] = array(); } $args = func_get_args(); if (count($args)) { $args[1] = isset($args[1]) ? $args[1] : false; $args[2] = isset($args[2]) ? $args[2] : false; $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = $args; } if (isset($_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()])) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()]; } // end call setting (eg. $do->sequenceKeys(a,b,c); ) $keys = $this->keys(); if (!$keys) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array(false,false,false); } $table = $this->table(); $dbtype = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['phptype']; $usekey = $keys[0]; $seqname = false; if (!empty($_DB_DATAOBJECT['CONFIG']['sequence_'.$this->tableName()])) { $seqname = $_DB_DATAOBJECT['CONFIG']['sequence_'.$this->tableName()]; if (strpos($seqname,':') !== false) { list($usekey,$seqname) = explode(':',$seqname); } } // if the key is not an integer - then it's not a sequence or native if (empty($table[$usekey]) || !($table[$usekey] & DB_DATAOBJECT_INT)) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array(false,false,false); } if (!empty($_DB_DATAOBJECT['CONFIG']['ignore_sequence_keys'])) { $ignore = $_DB_DATAOBJECT['CONFIG']['ignore_sequence_keys']; if (is_string($ignore) && (strtoupper($ignore) == 'ALL')) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array(false,false,$seqname); } if (is_string($ignore)) { $ignore = $_DB_DATAOBJECT['CONFIG']['ignore_sequence_keys'] = explode(',',$ignore); } if (in_array($this->tableName(),$ignore)) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array(false,false,$seqname); } } $realkeys = $_DB_DATAOBJECT['INI'][$this->_database][$this->tableName()."__keys"]; // if you are using an old ini file - go back to old behaviour... if (is_numeric($realkeys[$usekey])) { $realkeys[$usekey] = 'N'; } // multiple unique primary keys without a native sequence... if (($realkeys[$usekey] == 'K') && (count($keys) > 1)) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array(false,false,$seqname); } // use native sequence keys... // technically postgres native here... // we need to get the new improved tabledata sorted out first. // support named sequence keys.. - currently postgres only.. if ( in_array($dbtype , array('pgsql')) && ($table[$usekey] & DB_DATAOBJECT_INT) && isset($realkeys[$usekey]) && strlen($realkeys[$usekey]) > 1) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array($usekey,true, $realkeys[$usekey]); } if ( in_array($dbtype , array('pgsql', 'mysql', 'mysqli', 'mssql', 'ifx')) && ($table[$usekey] & DB_DATAOBJECT_INT) && isset($realkeys[$usekey]) && ($realkeys[$usekey] == 'N') ) { return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array($usekey,true,$seqname); } // if not a native autoinc, and we have not assumed all primary keys are sequence if (($realkeys[$usekey] != 'N') && !empty($_DB_DATAOBJECT['CONFIG']['dont_use_pear_sequences'])) { return array(false,false,false); } // I assume it's going to try and be a nextval DB sequence.. (not native) return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->tableName()] = array($usekey,false,$seqname); } /* =========================================================== */ /* Major Private Methods - the core part! */ /* =========================================================== */ /** * clear the cache values for this class - normally done on insert/update etc. * * @access private * @return void */ function _clear_cache() { global $_DB_DATAOBJECT; $class = strtolower(get_class($this)); if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("Clearing Cache for ".$class,1); } if (!empty($_DB_DATAOBJECT['CACHE'][$class])) { unset($_DB_DATAOBJECT['CACHE'][$class]); } } /** * backend wrapper for quoting, as MDB2 and DB do it differently... * * @access private * @return string quoted */ function _quote($str) { global $_DB_DATAOBJECT; return (empty($_DB_DATAOBJECT['CONFIG']['db_driver']) || ($_DB_DATAOBJECT['CONFIG']['db_driver'] == 'DB')) ? $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->quoteSmart($str) : $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->quote($str); } /** * connects to the database * * * TODO: tidy this up - This has grown to support a number of connection options like * a) dynamic changing of ini file to change which database to connect to * b) multi data via the table_{$table} = dsn ini option * c) session based storage. * * @access private * @return true | PEAR::error */ function _connect() { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { $this->_loadConfig(); } // Set database driver for reference $db_driver = empty($_DB_DATAOBJECT['CONFIG']['db_driver']) ? 'DB' : $_DB_DATAOBJECT['CONFIG']['db_driver']; // is it already connected ? if ($this->_database_dsn_md5 && !empty($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { // connection is an error... if (PEAR::isError($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { return $this->raiseError( $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->message, $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->code, PEAR_ERROR_DIE ); } if (empty($this->_database)) { $this->_database = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['database']; $hasGetDatabase = method_exists($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5], 'getDatabase'); $this->_database = ($db_driver != 'DB' && $hasGetDatabase) ? $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->getDatabase() : $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['database']; if (($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['phptype'] == 'sqlite') && is_file($this->_database)) { $this->_database = basename($this->_database); } if ($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['phptype'] == 'ibase') { $this->_database = substr(basename($this->_database), 0, -4); } } // theoretically we have a md5, it's listed in connections and it's not an error. // so everything is ok! return true; } // it's not currently connected! // try and work out what to use for the dsn ! $options= $_DB_DATAOBJECT['CONFIG']; // if the databse dsn dis defined in the object.. $dsn = isset($this->_database_dsn) ? $this->_database_dsn : null; if (!$dsn) { if (!$this->_database && !empty($this->__table)) { $this->_database = isset($options["table_{$this->tableName()}"]) ? $options["table_{$this->tableName()}"] : null; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("Checking for database specific ini ('{$this->_database}') : database_{$this->_database} in options","CONNECT"); } if ($this->_database && !empty($options["database_{$this->_database}"])) { $dsn = $options["database_{$this->_database}"]; } else if (!empty($options['database'])) { $dsn = $options['database']; } } // if still no database... if (!$dsn) { return $this->raiseError( "No database name / dsn found anywhere", DB_DATAOBJECT_ERROR_INVALIDCONFIG, PEAR_ERROR_DIE ); } if (is_string($dsn)) { $this->_database_dsn_md5 = md5($dsn); } else { /// support array based dsn's $this->_database_dsn_md5 = md5(serialize($dsn)); } if (!empty($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("USING CACHED CONNECTION", "CONNECT",3); } if (!$this->_database) { $hasGetDatabase = method_exists($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5], 'getDatabase'); $this->_database = ($db_driver != 'DB' && $hasGetDatabase) ? $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->getDatabase() : $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['database']; if (($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['phptype'] == 'sqlite') && is_file($this->_database)) { $this->_database = basename($this->_database); } } return true; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug("NEW CONNECTION TP DATABASE :" .$this->_database , "CONNECT",3); /* actualy make a connection */ $this->debug(print_r($dsn,true) ." {$this->_database_dsn_md5}", "CONNECT",3); } // Note this is verbose deliberatly! if ($db_driver == 'DB') { /* PEAR DB connect */ // this allows the setings of compatibility on DB $db_options = PEAR::getStaticProperty('DB','options'); require_once 'DB.php'; if ($db_options) { $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5] = DB::connect($dsn,$db_options); } else { $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5] = DB::connect($dsn); } } else { /* assumption is MDB2 */ require_once 'MDB2.php'; // this allows the setings of compatibility on MDB2 $db_options = PEAR::getStaticProperty('MDB2','options'); $db_options = is_array($db_options) ? $db_options : array(); $db_options['portability'] = isset($db_options['portability'] ) ? $db_options['portability'] : MDB2_PORTABILITY_ALL ^ MDB2_PORTABILITY_FIX_CASE; $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5] = MDB2::connect($dsn,$db_options); } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug(print_r($_DB_DATAOBJECT['CONNECTIONS'],true), "CONNECT",5); } if (PEAR::isError($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { $this->debug($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->toString(), "CONNECT FAILED",5); return $this->raiseError( "Connect failed, turn on debugging to 5 see why", $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->code, PEAR_ERROR_DIE ); } if (empty($this->_database)) { $hasGetDatabase = method_exists($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5], 'getDatabase'); $this->_database = ($db_driver != 'DB' && $hasGetDatabase) ? $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->getDatabase() : $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['database']; if (($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->dsn['phptype'] == 'sqlite') && is_file($this->_database)) { $this->_database = basename($this->_database); } } // Oracle need to optimize for portibility - not sure exactly what this does though :) return true; } /** * sends query to database - this is the private one that must work * - internal functions use this rather than $this->query() * * @param string $string * @access private * @return mixed none or PEAR_Error */ function _query($string) { global $_DB_DATAOBJECT; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $options = $_DB_DATAOBJECT['CONFIG']; $_DB_driver = empty($_DB_DATAOBJECT['CONFIG']['db_driver']) ? 'DB': $_DB_DATAOBJECT['CONFIG']['db_driver']; if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug($string,$log="QUERY"); } if ( strtoupper($string) == 'BEGIN' || strtoupper($string) == 'START TRANSACTION' ) { if ($_DB_driver == 'DB') { $DB->autoCommit(false); $DB->simpleQuery('BEGIN'); } else { $DB->beginTransaction(); } return true; } if (strtoupper($string) == 'COMMIT') { $res = $DB->commit(); if ($_DB_driver == 'DB') { $DB->autoCommit(true); } return $res; } if (strtoupper($string) == 'ROLLBACK') { $DB->rollback(); if ($_DB_driver == 'DB') { $DB->autoCommit(true); } return true; } if (!empty($options['debug_ignore_updates']) && (strtolower(substr(trim($string), 0, 6)) != 'select') && (strtolower(substr(trim($string), 0, 4)) != 'show') && (strtolower(substr(trim($string), 0, 8)) != 'describe')) { $this->debug('Disabling Update as you are in debug mode'); return $this->raiseError("Disabling Update as you are in debug mode", null) ; } //if (@$_DB_DATAOBJECT['CONFIG']['debug'] > 1) { // this will only work when PEAR:DB supports it. //$this->debug($DB->getAll('explain ' .$string,DB_DATAOBJECT_FETCHMODE_ASSOC), $log="sql",2); //} // some sim $t= explode(' ',microtime()); $_DB_DATAOBJECT['QUERYENDTIME'] = $time = $t[0]+$t[1]; for ($tries = 0;$tries < 3;$tries++) { if ($_DB_driver == 'DB') { $result = $DB->query($string); } else { switch (strtolower(substr(trim($string),0,6))) { case 'insert': case 'update': case 'delete': $result = $DB->exec($string); break; default: $result = $DB->query($string); break; } } // see if we got a failure.. - try again a few times.. if (!is_object($result) || !is_a($result,'PEAR_Error')) { break; } if ($result->getCode() != -14) { // *DB_ERROR_NODBSELECTED break; // not a connection error.. } sleep(1); // wait before retyring.. $DB->connect($DB->dsn); } if (is_object($result) && is_a($result,'PEAR_Error')) { if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug($result->toString(), "Query Error",1 ); } $this->N = false; return $this->raiseError($result); } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $t= explode(' ',microtime()); $_DB_DATAOBJECT['QUERYENDTIME'] = $t[0]+$t[1]; $this->debug('QUERY DONE IN '.($t[0]+$t[1]-$time)." seconds", 'query',1); } switch (strtolower(substr(trim($string),0,6))) { case 'insert': case 'update': case 'delete': if ($_DB_driver == 'DB') { // pear DB specific return $DB->affectedRows(); } return $result; } if (is_object($result)) { // lets hope that copying the result object is OK! $_DB_resultid = $GLOBALS['_DB_DATAOBJECT']['RESULTSEQ']++; $_DB_DATAOBJECT['RESULTS'][$_DB_resultid] = $result; $this->_DB_resultid = $_DB_resultid; } $this->N = 0; if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { $this->debug(serialize($result), 'RESULT',5); } if (method_exists($result, 'numRows')) { if ($_DB_driver == 'DB') { $DB->expectError(DB_ERROR_UNSUPPORTED); } else { $DB->expectError(MDB2_ERROR_UNSUPPORTED); } $this->N = $result->numRows(); //var_dump($this->N); if (is_object($this->N) && is_a($this->N,'PEAR_Error')) { $this->N = true; } $DB->popExpect(); } } /** * Builds the WHERE based on the values of of this object * * @param mixed $keys * @param array $filter (used by update to only uses keys in this filter list). * @param array $negative_filter (used by delete to prevent deleting using the keys mentioned..) * @access private * @return string */ function _build_condition($keys, $filter = array(),$negative_filter=array()) { global $_DB_DATAOBJECT; $this->_connect(); $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]; $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']); $options = $_DB_DATAOBJECT['CONFIG']; // if we dont have query vars.. - reset them. if ($this->_query === false) { $x = new DB_DataObject; $this->_query= $x->_query; } foreach($keys as $k => $v) { // index keys is an indexed array /* these filter checks are a bit suspicious.. - need to check that update really wants to work this way */ if ($filter) { if (!in_array($k, $filter)) { continue; } } if ($negative_filter) { if (in_array($k, $negative_filter)) { continue; } } if (!isset($this->$k)) { continue; } $kSql = $quoteIdentifiers ? ( $DB->quoteIdentifier($this->tableName()) . '.' . $DB->quoteIdentifier($k) ) : "{$this->tableName()}.{$k}"; if (is_object($this->$k) && is_a($this->$k,'DB_DataObject_Cast')) { $dbtype = $DB->dsn["phptype"]; $value = $this->$k->toString($v,$DB); if (PEAR::isError($value)) { $this->raiseError($value->getMessage() ,DB_DATAOBJECT_ERROR_INVALIDARG); return false; } if ((strtolower($value) === 'null') && !($v & DB_DATAOBJECT_NOTNULL)) { $this->whereAdd(" $kSql IS NULL"); continue; } $this->whereAdd(" $kSql = $value"); continue; } if (!($v & DB_DATAOBJECT_NOTNULL) && DB_DataObject::_is_null($this,$k)) { $this->whereAdd(" $kSql IS NULL"); continue; } if ($v & DB_DATAOBJECT_STR) { $this->whereAdd(" $kSql = " . $this->_quote((string) ( ($v & DB_DATAOBJECT_BOOL) ? // this is thanks to the braindead idea of postgres to // use t/f for boolean. (($this->$k === 'f') ? 0 : (int)(bool) $this->$k) : $this->$k )) ); continue; } if (is_numeric($this->$k)) { $this->whereAdd(" $kSql = {$this->$k}"); continue; } /* this is probably an error condition! */ $this->whereAdd(" $kSql = ".intval($this->$k)); } } /** * classic factory method for loading a table class * usage: $do = DB_DataObject::factory('person') * WARNING - this may emit a include error if the file does not exist.. * use @ to silence it (if you are sure it is acceptable) * eg. $do = @DB_DataObject::factory('person') * * table name can bedatabasename/table * - and allow modular dataobjects to be written.. * (this also helps proxy creation) * * Experimental Support for Multi-Database factory eg. mydatabase.mytable * * * @param string $table tablename (use blank to create a new instance of the same class.) * @access private * @return DataObject|PEAR_Error */ static function factory($table = '') { global $_DB_DATAOBJECT; // multi-database support.. - experimental. $database = ''; if (strpos( $table,'/') !== false ) { list($database,$table) = explode('.',$table, 2); } if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } // no configuration available for database if (!empty($database) && empty($_DB_DATAOBJECT['CONFIG']['database_'.$database])) { $do = new DB_DataObject(); $do->raiseError( "unable to find database_{$database} in Configuration, It is required for factory with database" , 0, PEAR_ERROR_DIE ); } /* if ($table === '') { if (is_a($this,'DB_DataObject') && strlen($this->tableName())) { $table = $this->tableName(); } else { return DB_DataObject::raiseError( "factory did not recieve a table name", DB_DATAOBJECT_ERROR_INVALIDARGS); } } */ // does this need multi db support?? $cp = isset($_DB_DATAOBJECT['CONFIG']['class_prefix']) ? explode(PATH_SEPARATOR, $_DB_DATAOBJECT['CONFIG']['class_prefix']) : ''; //print_r($cp); // multiprefix support. $tbl = preg_replace('/[^A-Z0-9]/i','_',ucfirst($table)); if (is_array($cp)) { $class = array(); foreach($cp as $cpr) { $ce = substr(phpversion(),0,1) > 4 ? class_exists($cpr . $tbl,false) : class_exists($cpr . $tbl); if ($ce) { $class = $cpr . $tbl; break; } $class[] = $cpr . $tbl; } } else { $class = $tbl; $ce = substr(phpversion(),0,1) > 4 ? class_exists($class,false) : class_exists($class); } $rclass = $ce ? $class : DB_DataObject::_autoloadClass($class, $table); // proxy = full|light if (!$rclass && isset($_DB_DATAOBJECT['CONFIG']['proxy'])) { DB_DataObject::debug("FAILED TO Autoload $database.$table - using proxy.","FACTORY",1); $proxyMethod = 'getProxy'.$_DB_DATAOBJECT['CONFIG']['proxy']; // if you have loaded (some other way) - dont try and load it again.. class_exists('DB_DataObject_Generator') ? '' : require_once 'DB/DataObject/Generator.php'; $d = new DB_DataObject; $d->__table = $table; $ret = $d->_connect(); if (is_object($ret) && is_a($ret, 'PEAR_Error')) { return $ret; } $x = new DB_DataObject_Generator; return $x->$proxyMethod( $d->_database, $table); } if (!$rclass || !class_exists($rclass)) { $dor = new DB_DataObject(); return $dor->raiseError( "factory could not find class " . (is_array($class) ? implode(PATH_SEPARATOR, $class) : $class ). "from $table", DB_DATAOBJECT_ERROR_INVALIDCONFIG); } $ret = new $rclass(); if (!empty($database)) { DB_DataObject::debug("Setting database to $database","FACTORY",1); $ret->database($database); } return $ret; } /** * autoload Class * * @param string|array $class Class * @param string $table Table trying to load. * @access private * @return string classname on Success */ function _autoloadClass($class, $table=false) { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } $class_prefix = empty($_DB_DATAOBJECT['CONFIG']['class_prefix']) ? '' : $_DB_DATAOBJECT['CONFIG']['class_prefix']; $table = $table ? $table : substr($class,strlen($class_prefix)); // only include the file if it exists - and barf badly if it has parse errors :) if (!empty($_DB_DATAOBJECT['CONFIG']['proxy']) || empty($_DB_DATAOBJECT['CONFIG']['class_location'])) { return false; } // support for: // class_location = mydir/ => maps to mydir/Tablename.php // class_location = mydir/myfile_%s.php => maps to mydir/myfile_Tablename // with directory sepr // class_location = mydir/:mydir2/: => tries all of thes locations. $cl = $_DB_DATAOBJECT['CONFIG']['class_location']; switch (true) { case (strpos($cl ,'%s') !== false): $file = sprintf($cl , preg_replace('/[^A-Z0-9]/i','_',ucfirst($table))); break; case (strpos($cl , PATH_SEPARATOR) !== false): $file = array(); foreach(explode(PATH_SEPARATOR, $cl ) as $p) { $file[] = $p .'/'.preg_replace('/[^A-Z0-9]/i','_',ucfirst($table)).".php"; } break; default: $file = $cl .'/'.preg_replace('/[^A-Z0-9]/i','_',ucfirst($table)).".php"; break; } $cls = is_array($class) ? $class : array($class); if (is_array($file) || !file_exists($file)) { $found = false; $file = is_array($file) ? $file : array($file); $search = implode(PATH_SEPARATOR, $file); foreach($file as $f) { foreach(explode(PATH_SEPARATOR, '' . PATH_SEPARATOR . ini_get('include_path')) as $p) { $ff = empty($p) ? $f : "$p/$f"; if (file_exists($ff)) { $file = $ff; $found = true; break; } } if ($found) { break; } } if (!$found) { $dor = new DB_DataObject(); $dor->raiseError( "autoload:Could not find class " . implode(',', $cls) . " using class_location value :" . $search . " using include_path value :" . ini_get('include_path'), DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } } include_once $file; $ce = false; foreach($cls as $c) { $ce = substr(phpversion(),0,1) > 4 ? class_exists($c,false) : class_exists($c); if ($ce) { $class = $c; break; } } if (!$ce) { $dor = new DB_DataObject(); $dor->raiseError( "autoload:Could not autoload " . implode(',', $cls) , DB_DATAOBJECT_ERROR_INVALIDCONFIG); return false; } return $class; } /** * Have the links been loaded? * if they have it contains a array of those variables. * * @access private * @var boolean | array */ var $_link_loaded = false; /** * Get the links associate array as defined by the links.ini file. * * * Experimental... - * Should look a bit like * [local_col_name] => "related_tablename:related_col_name" * * @param array $new_links optional - force update of the links for this table * You probably want to restore it to it's original state after, * as modifying here does it for the whole PHP request. * * @return array|null * array = if there are links defined for this table. * empty array - if there is a links.ini file, but no links on this table * false - if no links.ini exists for this database (hence try auto_links). * @access public * @see DB_DataObject::getLinks(), DB_DataObject::getLink() */ function links() { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { $this->_loadConfig(); } // have to connect.. -> otherwise things break later. $this->_connect(); // alias for shorter code.. $lcfg = &$_DB_DATAOBJECT['LINKS']; $cfg = $_DB_DATAOBJECT['CONFIG']; if ($args = func_get_args()) { // an associative array was specified, that updates the current // schema... - be careful doing this if (empty( $lcfg[$this->_database])) { $lcfg[$this->_database] = array(); } $lcfg[$this->_database][$this->tableName()] = $args[0]; } // loaded and available. if (isset($lcfg[$this->_database][$this->tableName()])) { return $lcfg[$this->_database][$this->tableName()]; } // loaded if (isset($lcfg[$this->_database])) { // either no file, or empty.. return $lcfg[$this->_database] === false ? null : array(); } // links are same place as schema by default. $schemas = isset($cfg['schema_location']) ? array("{$cfg['schema_location']}/{$this->_database}.ini") : array() ; // if ini_* is set look there instead. // and support multiple locations. if (isset($cfg["ini_{$this->_database}"])) { $schemas = is_array($cfg["ini_{$this->_database}"]) ? $cfg["ini_{$this->_database}"] : explode(PATH_SEPARATOR,$cfg["ini_{$this->_database}"]); } // default to not available. $lcfg[$this->_database] = false; foreach ($schemas as $ini) { $links = isset($cfg["links_{$this->_database}"]) ? $cfg["links_{$this->_database}"] : str_replace('.ini','.links.ini',$ini); // file really exists.. if (!file_exists($links) || !is_file($links)) { if (!empty($cfg['debug'])) { $this->debug("Missing links.ini file: $links","links",1); } continue; } // set to empty array - as we have at least one file now.. $lcfg[$this->_database] = empty($lcfg[$this->_database]) ? array() : $lcfg[$this->_database]; // merge schema file into lcfg.. $lcfg[$this->_database] = array_merge( $lcfg[$this->_database], parse_ini_file($links, true) ); if (!empty($cfg['debug'])) { $this->debug("Loaded links.ini file: $links","links",1); } } if (!empty($_DB_DATAOBJECT['CONFIG']['portability']) && $_DB_DATAOBJECT['CONFIG']['portability'] & 1) { foreach($lcfg[$this->_database] as $k=>$v) { $nk = strtolower($k); // results in duplicate cols.. but not a big issue.. $lcfg[$this->_database][$nk] = isset($lcfg[$this->_database][$nk]) ? $lcfg[$this->_database][$nk] : array(); foreach($v as $kk =>$vv) { //var_Dump($vv);exit; $vv =explode(':', $vv); $vv[0] = strtolower($vv[0]); $lcfg[$this->_database][$nk][$kk] = implode(':', $vv); } } } //echo '
';print_r($lcfg);exit;
        
        // if there is no link data at all on the file!
        // we return null.
        if ($lcfg[$this->_database] === false) {
            return null;
        }
        
        if (isset($lcfg[$this->_database][$this->tableName()])) {
            return $lcfg[$this->_database][$this->tableName()];
        }
        
        return array();
    }
    
    
    /**
     * generic getter/setter for links
     *
     * This is the new 'recommended' way to get get/set linked objects.
     * must be used with links.ini
     *
     * usage:
     *  get:
     *  $obj = $do->link('company_id');
     *  $obj = $do->link(array('local_col', 'linktable:linked_col'));
     *  
     *  set:
     *  $do->link('company_id',0);
     *  $do->link('company_id',$obj);
     *  $do->link('company_id', array($obj));
     *
     *  example function
     *
     *  function company() {
     *     $this->link(array('company_id','company:id'), func_get_args());
     *   }
     *
     * 
     *
     * @param  mixed $link_spec              link specification (normally a string)
     *                                       uses similar rules to  joinAdd() array argument.
     * @param  mixed $set_value (optional)   int, DataObject, or array('set')
     * @author Alan Knowles
     * @access public
     * @return mixed true or false on setting, object on getting
     */
    function link($field, $set_args = array())
    {
        require_once 'DB/DataObject/Links.php';
        $l = new DB_DataObject_Links($this);
        return  $l->link($field,$set_args) ;
        
    }
    
      /**
     * load related objects
     *
     * Generally not recommended to use this.
     * The generator should support creating getter_setter methods which are better suited.
     *
     * Relies on  .links.ini
     *
     * Sets properties on the calling dataobject  you can change what
     * object vars the links are stored in by  changeing the format parameter
     *
     *
     * @param  string format (default _%s) where %s is the table name.
     * @author Tim White 
     * @access public
     * @return boolean , true on success
     */
    function getLinks($format = '_%s')
    {
        require_once 'DB/DataObject/Links.php';
         $l = new DB_DataObject_Links($this);
        return $l->applyLinks($format);
           
    }

    /**
     * deprecited : @use link() 
     */
    function getLink($row, $table = null, $link = false)
    {
        require_once 'DB/DataObject/Links.php';
        $l = new DB_DataObject_Links($this);
        return $l->getLink($row, $table === null ? false: $table, $link);
         
        
    }

    /**
     * getLinkArray
     * Fetch an array of related objects. This should be used in conjunction with a .links.ini file configuration (see the introduction on linking for details on this).
     * You may also use this with all parameters to specify, the column and related table.
     * This is highly dependant on naming columns 'correctly' :)
     * using colname = xxxxx_yyyyyy
     * xxxxxx = related table; (yyyyy = user defined..)
     * looks up table xxxxx, for value id=$this->xxxxx
     * stores it in $this->_xxxxx_yyyyy
     *
     * @access public
     * @param string $column - either column or column.xxxxx
     * @param string $table - name of table to look up value in
     * @return array - array of results (empty array on failure)
     * 
     * Example - Getting the related objects
     * 
     * $person = new DataObjects_Person;
     * $person->get(12);
     * $children = $person->getLinkArray('children');
     * 
     * echo 'There are ', count($children), ' descendant(s):
'; * foreach ($children as $child) { * echo $child->name, '
'; * } * */ function getLinkArray($row, $table = null) { require_once 'DB/DataObject/Links.php'; $l = new DB_DataObject_Links($this); return $l->getLinkArray($row, $table === null ? false: $table); } /** * unionAdd - adds another dataobject to this, building a unioned query. * * usage: * $doTable1 = DB_DataObject::factory("table1"); * $doTable2 = DB_DataObject::factory("table2"); * * $doTable1->selectAdd(); * $doTable1->selectAdd("col1,col2"); * $doTable1->whereAdd("col1 > 100"); * $doTable1->orderBy("col1"); * * $doTable2->selectAdd(); * $doTable2->selectAdd("col1, col2"); * $doTable2->whereAdd("col2 = 'v'"); * * $doTable1->unionAdd($doTable2); * $doTable1->find(); * * Note: this model may be a better way to implement joinAdd?, eg. do the building in find? * * * @param $obj object|false the union object or false to reset * @param optional $is_all string 'ALL' to do all. * @returns $obj object|array the added object, or old list if reset. */ function unionAdd($obj,$is_all= '') { if ($obj === false) { $ret = $this->_query['unions']; $this->_query['unions'] = array(); return $ret; } $this->_query['unions'][] = array($obj, 'UNION ' . $is_all . ' ') ; return $obj; } /** * The JOIN condition * * @access private * @var string */ var $_join = ''; /** * joinAdd - adds another dataobject to this, building a joined query. * * example (requires links.ini to be set up correctly) * // get all the images for product 24 * $i = new DataObject_Image(); * $pi = new DataObjects_Product_image(); * $pi->product_id = 24; // set the product id to 24 * $i->joinAdd($pi); // add the product_image connectoin * $i->find(); * while ($i->fetch()) { * // do stuff * } * // an example with 2 joins * // get all the images linked with products or productgroups * $i = new DataObject_Image(); * $pi = new DataObject_Product_image(); * $pgi = new DataObject_Productgroup_image(); * $i->joinAdd($pi); * $i->joinAdd($pgi); * $i->find(); * while ($i->fetch()) { * // do stuff * } * * * @param optional $obj object |array the joining object (no value resets the join) * If you use an array here it should be in the format: * array('local_column','remotetable:remote_column'); * if remotetable does not have a definition, you should * use @ to hide the include error message.. * array('local_column', $dataobject , 'remote_column'); * if array has 3 args, then second is assumed to be the linked dataobject. * * @param optional $joinType string | array * 'LEFT'|'INNER'|'RIGHT'|'' Inner is default, '' indicates * just select ... from a,b,c with no join and * links are added as where items. * * If second Argument is array, it is assumed to be an associative * array with arguments matching below = eg. * 'joinType' => 'INNER', * 'joinAs' => '...' * 'joinCol' => .... * 'useWhereAsOn' => false, * * @param optional $joinAs string if you want to select the table as anther name * useful when you want to select multiple columsn * from a secondary table. * @param optional $joinCol string The column on This objects table to match (needed * if this table links to the child object in * multiple places eg. * user->friend (is a link to another user) * user->mother (is a link to another user..) * * optional 'useWhereAsOn' bool default false; * convert the where argments from the object being added * into ON arguments. * * * @return none * @access public * @author Stijn de Reede */ function joinAdd($obj = false, $joinType='INNER', $joinAs=false, $joinCol=false) { global $_DB_DATAOBJECT; if ($obj === false) { $this->_join = ''; return; } //echo '
'; print_r(func_get_args());
        $useWhereAsOn = false;
        // support for 2nd argument as an array of options
        if (is_array($joinType)) {
            // new options can now go in here... (dont forget to document them)
            $useWhereAsOn = !empty($joinType['useWhereAsOn']);
            $joinCol      = isset($joinType['joinCol'])  ? $joinType['joinCol']  : $joinCol;
            $joinAs       = isset($joinType['joinAs'])   ? $joinType['joinAs']   : $joinAs;
            $joinType     = isset($joinType['joinType']) ? $joinType['joinType'] : 'INNER';
        }
        // support for array as first argument 
        // this assumes that you dont have a links.ini for the specified table.
        // and it doesnt exist as am extended dataobject!! - experimental.
        
        $ofield = false; // object field
        $tfield = false; // this field
        $toTable = false;
        if (is_array($obj)) {
            $tfield = $obj[0];
            
            if (count($obj) == 3) {
                $ofield = $obj[2];
                $obj = $obj[1];
            } else {
                list($toTable,$ofield) = explode(':',$obj[1]);
            
                $obj = is_string($toTable) ? DB_DataObject::factory($toTable) : $toTable;
            
                if (!$obj || !is_object($obj) || is_a($obj,'PEAR_Error')) {
                    $obj = new DB_DataObject;
                    $obj->__table = $toTable;
                }
                $obj->_connect();
            }
            // set the table items to nothing.. - eg. do not try and match
            // things in the child table...???
            $items = array();
        }
        
        if (!is_object($obj) || !is_a($obj,'DB_DataObject')) {
            return $this->raiseError("joinAdd: called without an object", DB_DATAOBJECT_ERROR_NODATA,PEAR_ERROR_DIE);
        }
        /*  make sure $this->_database is set.  */
        $this->_connect();
        $DB = $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
       

        /// CHANGED 26 JUN 2009 - we prefer links from our local table over the remote one.
        
        /* otherwise see if there are any links from this table to the obj. */
        //print_r($this->links());
        if (($ofield === false) && ($links = $this->links())) {
            // this enables for support for arrays of links in ini file.
            // link contains this_column[] =  linked_table:linked_column
            // or standard way.
            // link contains this_column =  linked_table:linked_column
            foreach ($links as $k => $linkVar) {
            
                if (!is_array($linkVar)) {
                    $linkVar  = array($linkVar);
                }
                foreach($linkVar as $v) {

                    
                    
                    /* link contains {this column} = {linked table}:{linked column} */
                    $ar = explode(':', $v);
                    // Feature Request #4266 - Allow joins with multiple keys
                    if (strpos($k, ',') !== false) {
                        $k = explode(',', $k);
                    }
                    if (strpos($ar[1], ',') !== false) {
                        $ar[1] = explode(',', $ar[1]);
                    }

                    if ($ar[0] != $obj->tableName()) {
                        continue;
                    }
                    if ($joinCol !== false) {
                        if ($k == $joinCol) {
                            // got it!?
                            $tfield = $k;
                            $ofield = $ar[1];
                            break;
                        } 
                        continue;
                        
                    } 
                    $tfield = $k;
                    $ofield = $ar[1];
                    break;
                        
                }
            }
        }
         /* look up the links for obj table */
        //print_r($obj->links());
        if (!$ofield && ($olinks = $obj->links())) {
            
            foreach ($olinks as $k => $linkVar) {
                /* link contains {this column} = array ( {linked table}:{linked column} )*/
                if (!is_array($linkVar)) {
                    $linkVar  = array($linkVar);
                }
                foreach($linkVar as $v) {
                    
                    /* link contains {this column} = {linked table}:{linked column} */
                    $ar = explode(':', $v);
                    
                    // Feature Request #4266 - Allow joins with multiple keys
                    $links_key_array = strpos($k,',');
                    if ($links_key_array !== false) {
                        $k = explode(',', $k);
                    }
                    
                    $ar_array = strpos($ar[1],',');
                    if ($ar_array !== false) {
                        $ar[1] = explode(',', $ar[1]);
                    }
                 
                    if ($ar[0] != $this->tableName()) {
                        continue;
                    }
                    
                    // you have explictly specified the column
                    // and the col is listed here..
                    // not sure if 1:1 table could cause probs here..
                    
                    if ($joinCol !== false) {
                        $this->raiseError( 
                            "joinAdd: You cannot target a join column in the " .
                            "'link from' table ({$obj->__table}). " . 
                            "Either remove the fourth argument to joinAdd() ".
                            "({$joinCol}), or alter your links.ini file.",
                            DB_DATAOBJECT_ERROR_NODATA);
                        return false;
                    }
                
                    $ofield = $k;
                    $tfield = $ar[1];
                    break;
                    
                }
            }
        }

        // finally if these two table have column names that match do a join by default on them

        if (($ofield === false) && $joinCol) {
            $ofield = $joinCol;
            $tfield = $joinCol;

        }
        /* did I find a conneciton between them? */

        if ($ofield === false) {
            $this->raiseError(
                "joinAdd: {$obj->tableName()} has no link with {$this->tableName()}",
                DB_DATAOBJECT_ERROR_NODATA);
            return false;
        }
        $joinType = strtoupper($joinType);
        
        // we default to joining as the same name (this is remvoed later..)
        
        if ($joinAs === false) {
            $joinAs = $obj->tableName();
        }
        
        $quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']);
        $options = $_DB_DATAOBJECT['CONFIG'];
        
        // not sure  how portable adding database prefixes is..
        $objTable = $quoteIdentifiers ? 
                $DB->quoteIdentifier($obj->tableName()) : 
                 $obj->tableName() ;
                
        $dbPrefix  = '';
        if (strlen($obj->_database) && in_array($DB->dsn['phptype'],array('mysql','mysqli'))) {
            $dbPrefix = ($quoteIdentifiers
                         ? $DB->quoteIdentifier($obj->_database)
                         : $obj->_database) . '.';    
        }
        
        // if they are the same, then dont add a prefix...                
        if ($obj->_database == $this->_database) {
           $dbPrefix = '';
        }
        // as far as we know only mysql supports database prefixes..
        // prefixing the database name is now the default behaviour,
        // as it enables joining mutiple columns from multiple databases...
         
            // prefix database (quoted if neccessary..)
        $objTable = $dbPrefix . $objTable;
       
        $cond = '';

        // if obj only a dataobject - eg. no extended class has been defined..
        // it obvioulsy cant work out what child elements might exist...
        // until we get on the fly querying of tables..
        // note: we have already checked that it is_a(db_dataobject earlier)
        if ( strtolower(get_class($obj)) != 'db_dataobject') {
                 
            // now add where conditions for anything that is set in the object 
        
        
        
            $items = $obj->table();
            // will return an array if no items..
            
            // only fail if we where expecting it to work (eg. not joined on a array)
             
            if (!$items) {
                $this->raiseError(
                    "joinAdd: No table definition for {$obj->__table}", 
                    DB_DATAOBJECT_ERROR_INVALIDCONFIG);
                return false;
            }
            
            $ignore_null = !isset($options['disable_null_strings'])
                    || !is_string($options['disable_null_strings'])
                    || strtolower($options['disable_null_strings']) !== 'full' ;
            

            foreach($items as $k => $v) {
                if (!isset($obj->$k) && $ignore_null) {
                    continue;
                }
                
                $kSql = ($quoteIdentifiers ? $DB->quoteIdentifier($k) : $k);
                
                if (DB_DataObject::_is_null($obj,$k)) {
                	$obj->whereAdd("{$joinAs}.{$kSql} IS NULL");
                	continue;
                }
                
                if ($v & DB_DATAOBJECT_STR) {
                    $obj->whereAdd("{$joinAs}.{$kSql} = " . $this->_quote((string) (
                            ($v & DB_DATAOBJECT_BOOL) ? 
                                // this is thanks to the braindead idea of postgres to 
                                // use t/f for boolean.
                                (($obj->$k === 'f') ? 0 : (int)(bool) $obj->$k) :  
                                $obj->$k
                        )));
                    continue;
                }
                if (is_numeric($obj->$k)) {
                    $obj->whereAdd("{$joinAs}.{$kSql} = {$obj->$k}");
                    continue;
                }
                            
                if (is_object($obj->$k) && is_a($obj->$k,'DB_DataObject_Cast')) {
                    $value = $obj->$k->toString($v,$DB);
                    if (PEAR::isError($value)) {
                        $this->raiseError($value->getMessage() ,DB_DATAOBJECT_ERROR_INVALIDARG);
                        return false;
                    } 
                    $obj->whereAdd("{$joinAs}.{$kSql} = $value");
                    continue;
                }
                
                
                /* this is probably an error condition! */
                $obj->whereAdd("{$joinAs}.{$kSql} = 0");
            }
            if ($this->_query === false) {
                $this->raiseError(
                    "joinAdd can not be run from a object that has had a query run on it,
                    clone the object or create a new one and use setFrom()", 
                    DB_DATAOBJECT_ERROR_INVALIDARGS);
                return false;
            }
        }

        // and finally merge the whereAdd from the child..
        if ($obj->_query['condition']) {
            $cond = preg_replace('/^\sWHERE/i','',$obj->_query['condition']);

            if (!$useWhereAsOn) {
                $this->whereAdd($cond);
            }
        }
    
        
        
        
        // nested (join of joined objects..)
        $appendJoin = '';
        if ($obj->_join) {
            // postgres allows nested queries, with ()'s
            // not sure what the results are with other databases..
            // may be unpredictable..
            if (in_array($DB->dsn["phptype"],array('pgsql'))) {
                $objTable = "($objTable {$obj->_join})";
            } else {
                $appendJoin = $obj->_join;
            }
        }
        
  
        // fix for #2216
        // add the joinee object's conditions to the ON clause instead of the WHERE clause
        if ($useWhereAsOn && strlen($cond)) {
            $appendJoin = ' AND ' . $cond . ' ' . $appendJoin;
        }
               
        
        
        $table = $this->tableName();
        
        if ($quoteIdentifiers) {
            $joinAs   = $DB->quoteIdentifier($joinAs);
            $table    = $DB->quoteIdentifier($table);     
            $ofield   = (is_array($ofield)) ? array_map(array($DB, 'quoteIdentifier'), $ofield) : $DB->quoteIdentifier($ofield);
            $tfield   = (is_array($tfield)) ? array_map(array($DB, 'quoteIdentifier'), $tfield) : $DB->quoteIdentifier($tfield); 
        }
        // add database prefix if they are different databases
       
        
        $fullJoinAs = '';
        $addJoinAs  = ($quoteIdentifiers ? $DB->quoteIdentifier($obj->tableName()) : $obj->tableName()) != $joinAs;
        if ($addJoinAs) {
            // join table a AS b - is only supported by a few databases and is probably not needed
            // , however since it makes the whole Statement alot clearer we are leaving it in
            // for those databases.
            $fullJoinAs = in_array($DB->dsn["phptype"],array('mysql','mysqli','pgsql')) ? "AS {$joinAs}" :  $joinAs;
        } else {
            // if 
            $joinAs = $dbPrefix . $joinAs;
        }
        
        
        switch ($joinType) {
            case 'INNER':
            case 'LEFT': 
            case 'RIGHT': // others??? .. cross, left outer, right outer, natural..?
                
                // Feature Request #4266 - Allow joins with multiple keys
                $jadd = "\n {$joinType} JOIN {$objTable} {$fullJoinAs}";
                //$this->_join .= "\n {$joinType} JOIN {$objTable} {$fullJoinAs}";
                if (is_array($ofield)) {
                	$key_count = count($ofield);
                    for($i = 0; $i < $key_count; $i++) {
                    	if ($i == 0) {
                    		$jadd .= " ON ({$joinAs}.{$ofield[$i]}={$table}.{$tfield[$i]}) ";
                    	}
                    	else {
                    		$jadd .= " AND {$joinAs}.{$ofield[$i]}={$table}.{$tfield[$i]} ";
                    	}
                    }
                    $jadd .= ' ' . $appendJoin . ' ';
                } else {
	                $jadd .= " ON ({$joinAs}.{$ofield}={$table}.{$tfield}) {$appendJoin} ";
                }
                // jadd avaliable for debugging join build.
                //echo $jadd ."\n";
                $this->_join .= $jadd;
                break;
                
            case '': // this is just a standard multitable select..
                $this->_join .= "\n , {$objTable} {$fullJoinAs} {$appendJoin}";
                $this->whereAdd("{$joinAs}.{$ofield}={$table}.{$tfield}");
        }
         
         
        return true;

    }

    /**
     * autoJoin - using the links.ini file, it builds a query with all the joins 
     * usage: 
     * $x = DB_DataObject::factory('mytable');
     * $x->autoJoin();
     * $x->get(123); 
     *   will result in all of the joined data being added to the fetched object..
     * 
     * $x = DB_DataObject::factory('mytable');
     * $x->autoJoin();
     * $ar = $x->fetchAll();
     *   will result in an array containing all the data from the table, and any joined tables..
     * 
     * $x = DB_DataObject::factory('mytable');
     * $jdata = $x->autoJoin();
     * $x->selectAdd(); //reset..
     * foreach($_REQUEST['requested_cols'] as $c) {
     *    if (!isset($jdata[$c])) continue; // ignore columns not available..
     *    $x->selectAdd( $jdata[$c] . ' as ' . $c);
     * }
     * $ar = $x->fetchAll(); 
     *   will result in only the columns requested being fetched...
     *
     *
     *
     * @param     array     Configuration
     *          exclude  Array of columns to exclude from results (eg. modified_by_id)
     *          links    The equivilant links.ini data for this table eg.
     *                    array( 'person_id' => 'person:id', .... )
     *          include  Array of columns to include
     *          distinct Array of distinct columns.
     *          
     * @return   array      info about joins
     *                      cols => map of resulting {joined_tablename}.{joined_table_column_name}
     *                      join_names => map of resulting {join_name_as}.{joined_table_column_name}
     *                      count => the column to count on.
     * @access   public
     */
    function autoJoin($cfg = array())
    {
        //var_Dump($cfg);exit;
        $pre_links = $this->links();
        if (!empty($cfg['links'])) {
            $this->links(array_merge( $pre_links , $cfg['links']));
        }
        $map = $this->links( );
        
        
        //print_r($map);
        $tabdef = $this->table();
         
        // we need this as normally it's only cleared by an empty selectAs call.
       
        
        $keys = array_keys($tabdef);
        if (!empty($cfg['exclude'])) {
            $keys = array_intersect($keys, array_diff($keys, $cfg['exclude'])); 
        }
        if (!empty($cfg['include'])) {
            
            $keys =  array_intersect($keys,  $cfg['include']); 
        }
        
        $selectAs = array();
        
        if (!empty($keys)) {
            $selectAs = array(array( $keys , '%s', false));
        }
        
        $ret = array(
            'cols' => array(),
            'join_names' => array(),
            'count' => false,
        );
        
        
        
        $has_distinct = false;
        if (!empty($cfg['distinct']) && $keys) {
            
            // reset the columsn?
            $cols = array();
            
             //echo '
' ;print_r($xx);exit;
            foreach($keys as $c) {
                //var_dump($c);
                
                if (  $cfg['distinct'] == $c) {
                    $has_distinct = 'DISTINCT( ' . $this->tableName() .'.'. $c .') as ' . $c;
                    $ret['count'] =  'DISTINCT  ' . $this->tableName() .'.'. $c .'';
                    continue;
                }
                // cols is in our filtered keys...
                $cols = $c;
                
            }
            // apply our filtered version, which excludes the distinct column.
            
            $selectAs = empty($cols) ?  array() : array(array(array(  $cols) , '%s', false)) ;
            
            
            
        } 
                
        foreach($keys as $k) {
            $ret['cols'][$k] = $this->tableName(). '.' . $k;
        }
        
         
        
        foreach($map as $ocl=>$info) {
            
            list($tab,$col) = explode(':', $info);
            // what about multiple joins on the same table!!!
            $xx = DB_DataObject::factory($tab);
            if (!is_object($xx) || !is_a($xx, 'DB_DataObject')) {
                continue;
            }
            // skip columns that are excluded.
            
            // we ignore include here... - as
             
            // this is borked ... for multiple jions..
            $this->joinAdd($xx, 'LEFT', 'join_'.$ocl.'_'. $col, $ocl);
            
            if (!empty($cfg['exclude']) && in_array($ocl, $cfg['exclude'])) {
                continue;
            }
            
            $tabdef = $xx->table();
            $table = $xx->tableName();
            
            $keys = array_keys($tabdef);
            
            
            if (!empty($cfg['exclude'])) {
                $keys = array_intersect($keys, array_diff($keys, $cfg['exclude']));
                
                foreach($keys as $k) {
                    if (in_array($ocl.'_'.$k, $cfg['exclude'])) {
                        $keys = array_diff($keys, $k); // removes the k..
                    }
                }
                
            }
            
            if (!empty($cfg['include'])) {
                // include will basically be BASECOLNAME_joinedcolname
                $nkeys = array();
                foreach($keys as $k) {
                    if (in_array( sprintf($ocl.'_%s', $k), $cfg['include'])) {
                        $nkeys[] = $k;
                    }
                }
                $keys = $nkeys;
            }
            
            if (empty($keys)) {
                continue;
            }
            // got distinct, and not yet found it..
            if (!$has_distinct && !empty($cfg['distinct']))  {
                $cols = array();
                foreach($keys as $c) {
                    $tn = sprintf($ocl.'_%s', $c);
                      
                    if ( $tn == $cfg['distinct']) {
                        
                        $has_distinct = 'DISTINCT( ' . 'join_'.$ocl.'_'.$col.'.'.$c .')  as ' . $tn ;
                        $ret['count'] =  'DISTINCT  join_'.$ocl.'_'.$col.'.'.$c;
                       // var_dump($this->countWhat );
                        continue;
                    }
                    $cols[] = $c;
                     
                }
                
                if (!empty($cols)) {
                    $selectAs[] = array($cols, $ocl.'_%s', 'join_'.$ocl.'_'. $col);
                }
                
            } else {
                $selectAs[] = array($keys, $ocl.'_%s', 'join_'.$ocl.'_'. $col);
            }
              
            foreach($keys as $k) {
                $ret['cols'][sprintf('%s_%s', $ocl, $k)] = $tab.'.'.$k;
                $ret['join_names'][sprintf('%s_%s', $ocl, $k)] = sprintf('join_%s_%s.%s',$ocl, $col, $k);
            }
             
        }
        
        // fill in the select details..
        $this->selectAdd(); 
        
        if ($has_distinct) {
            $this->selectAdd($has_distinct);
        }
       
        foreach($selectAs as $ar) {            
            $this->selectAs($ar[0], $ar[1], $ar[2]);
        }
        // restore links..
        $this->links( $pre_links );
        
        return $ret;
        
    }
    
    /**
     * Factory method for calling DB_DataObject_Cast
     *
     * if used with 1 argument DB_DataObject_Cast::sql($value) is called
     * 
     * if used with 2 arguments DB_DataObject_Cast::$value($callvalue) is called
     * valid first arguments are: blob, string, date, sql
     * 
     * eg. $member->updated = $member->sqlValue('NOW()');
     * 
     * 
     * might handle more arguments for escaping later...
     * 
     *
     * @param string $value (or type if used with 2 arguments)
     * @param string $callvalue (optional) used with date/null etc..
     */
    
    function sqlValue($value)
    {
        $method = 'sql';
        if (func_num_args() == 2) {
            $method = $value;
            $value = func_get_arg(1);
        }
        require_once 'DB/DataObject/Cast.php';
        return call_user_func(array('DB_DataObject_Cast', $method), $value);
        
    }
    
    
    /**
     * Copies items that are in the table definitions from an
     * array or object into the current object
     * will not override key values.
     *
     *
     * @param    array | object  $from
     * @param    string  $format eg. map xxxx_name to $object->name using 'xxxx_%s' (defaults to %s - eg. name -> $object->name
     * @param    boolean  $skipEmpty (dont assign empty values if a column is empty (eg. '' / 0 etc...)
     * @access   public
     * @return   true on success or array of key=>setValue error message
     */
    function setFrom($from, $format = '%s', $skipEmpty=false)
    {
        global $_DB_DATAOBJECT;
        $keys  = $this->keys();
        $items = $this->table();
        
        if (!$items) {
            $this->raiseError(
                "setFrom:Could not find table definition for {$this->tableName()}", 
                DB_DATAOBJECT_ERROR_INVALIDCONFIG);
            return;
        }
        $overload_return = array();
        foreach (array_keys($items) as $k) {
            if (in_array($k,$keys)) {
                continue; // dont overwrite keys
            }
            if (!$k) {
                continue; // ignore empty keys!!! what
            }
            
            $chk = is_object($from) &&  
                (version_compare(phpversion(), "5.1.0" , ">=") ? 
                    property_exists($from, sprintf($format,$k)) :  // php5.1
                    array_key_exists( sprintf($format,$k), get_class_vars($from)) //older
                );
            // if from has property ($format($k)      
            if ($chk) {
                $kk = (strtolower($k) == 'from') ? '_from' : $k;
                if (method_exists($this,'set'.$kk)) {
                    $ret = $this->{'set'.$kk}($from->{sprintf($format,$k)});
                    if (is_string($ret)) {
                        $overload_return[$k] = $ret;
                    }
                    continue;
                }
                $this->$k = $from->{sprintf($format,$k)};
                continue;
            }
            
            if (is_object($from)) {
                continue;
            }
            
            if (empty($from[sprintf($format,$k)]) && $skipEmpty) {
                continue;
            }
            
            if (!isset($from[sprintf($format,$k)]) && !DB_DataObject::_is_null($from, sprintf($format,$k))) {
                continue;
            }
           
            $kk = (strtolower($k) == 'from') ? '_from' : $k;
            if (method_exists($this,'set'. $kk)) {
                $ret =  $this->{'set'.$kk}($from[sprintf($format,$k)]);
                if (is_string($ret)) {
                    $overload_return[$k] = $ret;
                }
                continue;
            }
            $val = $from[sprintf($format,$k)];
            if (is_a($val, 'DB_DataObject_Cast')) {
                $this->$k = $val;
                continue;
            }
            if (is_object($val) || is_array($val)) {
                continue;
            }
            $ret = $this->fromValue($k,$val);
            if ($ret !== true)  {
                $overload_return[$k] = 'Not A Valid Value';
            }
            //$this->$k = $from[sprintf($format,$k)];
        }
        if ($overload_return) {
            return $overload_return;
        }
        return true;
    }

    /**
     * Returns an associative array from the current data
     * (kind of oblivates the idea behind DataObjects, but
     * is usefull if you use it with things like QuickForms.
     *
     * you can use the format to return things like user[key]
     * by sending it $object->toArray('user[%s]')
     *
     * will also return links converted to arrays.
     *
     * @param   string  sprintf format for array
     * @param   bool||number    [true = elemnts that have a value set],
     *                          [false = table + returned colums] ,
     *                          [0 = returned columsn only]
     *
     * @access   public
     * @return   array of key => value for row
     */

    function toArray($format = '%s', $hideEmpty = false) 
    {
        global $_DB_DATAOBJECT;
        
        // we use false to ignore sprintf.. (speed up..)
        $format = $format == '%s' ? false : $format;
        
        $ret = array();
        $rf = ($this->_resultFields !== false) ? $this->_resultFields : 
                (isset($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid]) ?
                 $_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid] : false);
        
        $ar = ($rf !== false) ?
            (($hideEmpty === 0) ? $rf : array_merge($rf, $this->table())) :
            $this->table();

        foreach($ar as $k=>$v) {
             
            if (!isset($this->$k)) {
                if (!$hideEmpty) {
                    $ret[$format === false ? $k : sprintf($format,$k)] = '';
                }
                continue;
            }
            // call the overloaded getXXXX() method. - except getLink and getLinks
            if (method_exists($this,'get'.$k) && !in_array(strtolower($k),array('links','link'))) {
                $ret[$format === false ? $k : sprintf($format,$k)] = $this->{'get'.$k}();
                continue;
            }
            // should this call toValue() ???
            $ret[$format === false ? $k : sprintf($format,$k)] = $this->$k;
        }
        if (!$this->_link_loaded) {
            return $ret;
        }
        foreach($this->_link_loaded as $k) {
            $ret[$format === false ? $k : sprintf($format,$k)] = $this->$k->toArray();
        
        }
        
        return $ret;
    }

    /**
     * validate the values of the object (usually prior to inserting/updating..)
     *
     * Note: This was always intended as a simple validation routine.
     * It lacks understanding of field length, whether you are inserting or updating (and hence null key values)
     *
     * This should be moved to another class: DB_DataObject_Validate 
     *      FEEL FREE TO SEND ME YOUR VERSION FOR CONSIDERATION!!!
     *
     * Usage:
     * if (is_array($ret = $obj->validate())) { ... there are problems with the data ... }
     *
     * Logic:
     *   - defaults to only testing strings/numbers if numbers or strings are the correct type and null values are correct
     *   - validate Column methods : "validate{ROWNAME}()"  are called if they are defined.
     *            These methods should return 
     *                  true = everything ok
     *                  false|object = something is wrong!
     * 
     *   - This method loads and uses the PEAR Validate Class.
     *
     *
     * @access  public
     * @return  array of validation results (where key=>value, value=false|object if it failed) or true (if they all succeeded)
     */
    function validate()
    {
        global $_DB_DATAOBJECT;
        require_once 'Validate.php';
        $table = $this->table();
        $ret   = array();
        $seq   = $this->sequenceKey();
        $options = $_DB_DATAOBJECT['CONFIG'];
        foreach($table as $key => $val) {
            
            
            // call user defined validation always...
            $method = "Validate" . ucfirst($key);
            if (method_exists($this, $method)) {
                $ret[$key] = $this->$method();
                continue;
            }
            
            // if not null - and it's not set.......
            
            if ($val & DB_DATAOBJECT_NOTNULL && DB_DataObject::_is_null($this, $key)) {
                // dont check empty sequence key values..
                if (($key == $seq[0]) && ($seq[1] == true)) {
                    continue;
                }
                $ret[$key] = false;
                continue;
            }
            
            
             if (DB_DataObject::_is_null($this, $key)) {
                if ($val & DB_DATAOBJECT_NOTNULL) {
                    $this->debug("'null' field used for '$key', but it is defined as NOT NULL", 'VALIDATION', 4);
                    $ret[$key] = false;
                    continue;
                }
                continue;
            }

            // ignore things that are not set. ?
           
            if (!isset($this->$key)) {
                continue;
            }
            
            // if the string is empty.. assume it is ok..
            if (!is_object($this->$key) && !is_array($this->$key) && !strlen((string) $this->$key)) {
                continue;
            }
            
            // dont try and validate cast objects - assume they are problably ok..
            if (is_object($this->$key) && is_a($this->$key,'DB_DataObject_Cast')) {
                continue;
            }
            // at this point if you have set something to an object, and it's not expected
            // the Validate will probably break!!... - rightly so! (your design is broken, 
            // so issuing a runtime error like PEAR_Error is probably not appropriate..
            
            switch (true) {
                // todo: date time.....
                case  ($val & DB_DATAOBJECT_STR):
                    $ret[$key] = Validate::string($this->$key, VALIDATE_PUNCTUATION . VALIDATE_NAME);
                    continue;
                case  ($val & DB_DATAOBJECT_INT):
                    $ret[$key] = Validate::number($this->$key, array('decimal'=>'.'));
                    continue;
            }
        }
        // if any of the results are false or an object (eg. PEAR_Error).. then return the array..
        foreach ($ret as $key => $val) {
            if ($val !== true) {
                return $ret;
            }
        }
        return true; // everything is OK.
    }

    /**
     * Gets the DB object related to an object - so you can use funky peardb stuf with it :)
     *
     * @access public
     * @return object The DB connection
     */
    function getDatabaseConnection()
    {
        global $_DB_DATAOBJECT;

        if (($e = $this->_connect()) !== true) {
            return $e;
        }
        if (!isset($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) {
            $r = false;
            return $r;
        }
        return $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
    }
 
 
    /**
     * Gets the DB result object related to the objects active query
     *  - so you can use funky pear stuff with it - like pager for example.. :)
     *
     * @access public
     * @return object The DB result object
     */
     
    function getDatabaseResult()
    {
        global $_DB_DATAOBJECT;
        $this->_connect();
        if (!isset($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid])) {
            $r = false;
            return $r;
        }
        return $_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid];
    }

    /**
     * Overload Extension support
     *  - enables setCOLNAME/getCOLNAME
     *  if you define a set/get method for the item it will be called.
     * otherwise it will just return/set the value.
     * NOTE this currently means that a few Names are NO-NO's 
     * eg. links,link,linksarray, from, Databaseconnection,databaseresult
     *
     * note 
     *  - set is automatically called by setFrom.
     *   - get is automatically called by toArray()
     *  
     * setters return true on success. = strings on failure
     * getters return the value!
     *
     * this fires off trigger_error - if any problems.. pear_error, 
     * has problems with 4.3.2RC2 here
     *
     * @access public
     * @return true?
     * @see overload
     */

    
    function _call($method,$params,&$return) {
        
        //$this->debug("ATTEMPTING OVERLOAD? $method");
        // ignore constructors : - mm
        if (strtolower($method) == strtolower(get_class($this))) {
            return true;
        }
        $type = strtolower(substr($method,0,3));
        $class = get_class($this);
        if (($type != 'set') && ($type != 'get')) {
            return false;
        }
         
        
        
        // deal with naming conflick of setFrom = this is messy ATM!
        
        if (strtolower($method) == 'set_from') {
            $return = $this->toValue('from',isset($params[0]) ? $params[0] : null);
            return  true;
        }
        
        $element = substr($method,3);
        
        // dont you just love php's case insensitivity!!!!
        
        $array =  array_keys(get_class_vars($class));
        /* php5 version which segfaults on 5.0.3 */
        if (class_exists('ReflectionClass')) {
            $reflection = new ReflectionClass($class);
            $array = array_keys($reflection->getdefaultProperties());
        }
        
        if (!in_array($element,$array)) {
            // munge case
            foreach($array as $k) {
                $case[strtolower($k)] = $k;
            }
            if ((substr(phpversion(),0,1) == 5) && isset($case[strtolower($element)])) {
                trigger_error("PHP5 set/get calls should match the case of the variable",E_USER_WARNING);
                $element = strtolower($element);
            }
            
            // does it really exist?
            if (!isset($case[$element])) {
                return false;            
            }
            // use the mundged case
            $element = $case[$element]; // real case !
        }
        
        
        if ($type == 'get') {
            $return = $this->toValue($element,isset($params[0]) ? $params[0] : null);
            return true;
        }
        
        
        $return = $this->fromValue($element, $params[0]);
         
        return true;
            
          
    }
        
    
    /**
    * standard set* implementation.
    *
    * takes data and uses it to set dates/strings etc.
    * normally called from __call..  
    *
    * Current supports
    *   date      = using (standard time format, or unixtimestamp).... so you could create a method :
    *               function setLastread($string) { $this->fromValue('lastread',strtotime($string)); }
    *
    *   time      = using strtotime 
    *   datetime  = using  same as date - accepts iso standard or unixtimestamp.
    *   string    = typecast only..
    * 
    * TODO: add formater:: eg. d/m/Y for date! ???
    *
    * @param   string       column of database
    * @param   mixed        value to assign
    *
    * @return   true| false     (False on error)
    * @access   public 
    * @see      DB_DataObject::_call
    */
  
    
    function fromValue($col,$value) 
    {
        global $_DB_DATAOBJECT;
        $options = $_DB_DATAOBJECT['CONFIG'];
        $cols = $this->table();
        // dont know anything about this col..
        if (!isset($cols[$col]) || is_a($value, 'DB_DataObject_Cast')) {
            $this->$col = $value;
            return true;
        }
        //echo "FROM VALUE $col, {$cols[$col]}, $value\n";
        switch (true) {
            // set to null and column is can be null...
            case ((!($cols[$col] & DB_DATAOBJECT_NOTNULL)) && DB_DataObject::_is_null($value, false)):
            case (is_object($value) && is_a($value,'DB_DataObject_Cast')): 
                $this->$col = $value;
                return true;
                
            // fail on setting null on a not null field..
            case (($cols[$col] & DB_DATAOBJECT_NOTNULL) && DB_DataObject::_is_null($value,false)):

                return false;
        
            case (($cols[$col] & DB_DATAOBJECT_DATE) &&  ($cols[$col] & DB_DATAOBJECT_TIME)):
                // empty values get set to '' (which is inserted/updated as NULl
                if (!$value) {
                    $this->$col = '';
                }
            
                if (is_numeric($value)) {
                    $this->$col = date('Y-m-d H:i:s', $value);
                    return true;
                }
              
                // eak... - no way to validate date time otherwise...
                $this->$col = (string) $value;
                return true;
            
            case ($cols[$col] & DB_DATAOBJECT_DATE):
                // empty values get set to '' (which is inserted/updated as NULl
                 
                if (!$value) {
                    $this->$col = '';
                    return true; 
                }
            
                if (is_numeric($value)) {
                    $this->$col = date('Y-m-d',$value);
                    return true;
                }
                 
                // try date!!!!
                require_once 'Date.php';
                $x = new Date($value);
                $this->$col = $x->format("%Y-%m-%d");
                return true;
            
            case ($cols[$col] & DB_DATAOBJECT_TIME):
                // empty values get set to '' (which is inserted/updated as NULl
                if (!$value) {
                    $this->$col = '';
                }
            
                $guess = strtotime($value);
                if ($guess != -1) {
                     $this->$col = date('H:i:s', $guess);
                    return $return = true;
                }
                // otherwise an error in type...
                return false;
            
            case ($cols[$col] & DB_DATAOBJECT_STR):
                
                $this->$col = (string) $value;
                return true;
                
            // todo : floats numerics and ints...
            default:
                $this->$col = $value;
                return true;
        }
    
    
    
    }
     /**
    * standard get* implementation.
    *
    *  with formaters..
    * supported formaters:  
    *   date/time : %d/%m/%Y (eg. php strftime) or pear::Date 
    *   numbers   : %02d (eg. sprintf)
    *  NOTE you will get unexpected results with times like 0000-00-00 !!!
    *
    *
    * 
    * @param   string       column of database
    * @param   format       foramt
    *
    * @return   true     Description
    * @access   public 
    * @see      DB_DataObject::_call(),strftime(),Date::format()
    */
    function toValue($col,$format = null) 
    {
        if (is_null($format)) {
            return $this->$col;
        }
        $cols = $this->table();
        switch (true) {
            case (($cols[$col] & DB_DATAOBJECT_DATE) &&  ($cols[$col] & DB_DATAOBJECT_TIME)):
                if (!$this->$col) {
                    return '';
                }
                $guess = strtotime($this->$col);
                if ($guess != -1) {
                    return strftime($format, $guess);
                }
                // eak... - no way to validate date time otherwise...
                return $this->$col;
            case ($cols[$col] & DB_DATAOBJECT_DATE):
                if (!$this->$col) {
                    return '';
                } 
                $guess = strtotime($this->$col);
                if ($guess != -1) {
                    return strftime($format,$guess);
                }
                // try date!!!!
                require_once 'Date.php';
                $x = new Date($this->$col);
                return $x->format($format);
                
            case ($cols[$col] & DB_DATAOBJECT_TIME):
                if (!$this->$col) {
                    return '';
                }
                $guess = strtotime($this->$col);
                if ($guess > -1) {
                    return strftime($format, $guess);
                }
                // otherwise an error in type...
                return $this->$col;
                
            case ($cols[$col] &  DB_DATAOBJECT_MYSQLTIMESTAMP):
                if (!$this->$col) {
                    return '';
                }
                require_once 'Date.php';
                
                $x = new Date($this->$col);
                
                return $x->format($format);
            
             
            case ($cols[$col] &  DB_DATAOBJECT_BOOL):
                
                if ($cols[$col] &  DB_DATAOBJECT_STR) {
                    // it's a 't'/'f' !
                    return ($this->$col === 't');
                }
                return (bool) $this->$col;
            
               
            default:
                return sprintf($format,$this->col);
        }
            

    }
    
    
    /* ----------------------- Debugger ------------------ */

    /**
     * Debugger. - use this in your extended classes to output debugging information.
     *
     * Uses DB_DataObject::DebugLevel(x) to turn it on
     *
     * @param    string $message - message to output
     * @param    string $logtype - bold at start
     * @param    string $level   - output level
     * @access   public
     * @return   none
     */
    function debug($message, $logtype = 0, $level = 1)
    {
        global $_DB_DATAOBJECT;

        if (empty($_DB_DATAOBJECT['CONFIG']['debug'])  || 
            (is_numeric($_DB_DATAOBJECT['CONFIG']['debug']) &&  $_DB_DATAOBJECT['CONFIG']['debug'] < $level)) {
            return;
        }
        // this is a bit flaky due to php's wonderfull class passing around crap..
        // but it's about as good as it gets..
        $class = (isset($this) && is_a($this,'DB_DataObject')) ? get_class($this) : 'DB_DataObject';
        
        if (!is_string($message)) {
            $message = print_r($message,true);
        }
        if (!is_numeric( $_DB_DATAOBJECT['CONFIG']['debug']) && is_callable( $_DB_DATAOBJECT['CONFIG']['debug'])) {
            return call_user_func($_DB_DATAOBJECT['CONFIG']['debug'], $class, $message, $logtype, $level);
        }
        
        if (!ini_get('html_errors')) {
            echo "$class   : $logtype       : $message\n";
            flush();
            return;
        }
        if (!is_string($message)) {
            $message = print_r($message,true);
        }
        $colorize = ($logtype == 'ERROR') ? '' : '';
        echo "{$colorize}$class: $logtype: ". nl2br(htmlspecialchars($message)) . "
\n"; } /** * sets and returns debug level * eg. DB_DataObject::debugLevel(4); * * @param int $v level * @access public * @return none */ static function debugLevel($v = null) { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } if ($v !== null) { $r = isset($_DB_DATAOBJECT['CONFIG']['debug']) ? $_DB_DATAOBJECT['CONFIG']['debug'] : 0; $_DB_DATAOBJECT['CONFIG']['debug'] = $v; return $r; } return isset($_DB_DATAOBJECT['CONFIG']['debug']) ? $_DB_DATAOBJECT['CONFIG']['debug'] : 0; } /** * Last Error that has occured * - use $this->_lastError or * $last_error = PEAR::getStaticProperty('DB_DataObject','lastError'); * * @access public * @var object PEAR_Error (or false) */ var $_lastError = false; /** * Default error handling is to create a pear error, but never return it. * if you need to handle errors you should look at setting the PEAR_Error callback * this is due to the fact it would wreck havoc on the internal methods! * * @param int $message message * @param int $type type * @param int $behaviour behaviour (die or continue!); * @access public * @return error object */ function raiseError($message, $type = null, $behaviour = null) { global $_DB_DATAOBJECT; if ($behaviour == PEAR_ERROR_DIE && !empty($_DB_DATAOBJECT['CONFIG']['dont_die'])) { $behaviour = null; } $error = &PEAR::getStaticProperty('DB_DataObject','lastError'); // no checks for production here?....... - we log errors before we throw them. DB_DataObject::debug($message,'ERROR',1); if (PEAR::isError($message)) { $error = $message; } else { require_once 'DB/DataObject/Error.php'; $dor = new PEAR(); $error = $dor->raiseError($message, $type, $behaviour, $opts=null, $userinfo=null, 'DB_DataObject_Error' ); } // this will never work totally with PHP's object model. // as this is passed on static calls (like staticGet in our case) $_DB_DATAOBJECT['LASTERROR'] = $error; if (isset($this) && is_object($this) && is_subclass_of($this,'db_dataobject')) { $this->_lastError = $error; } return $error; } /** * Define the global $_DB_DATAOBJECT['CONFIG'] as an alias to PEAR::getStaticProperty('DB_DataObject','options'); * * After Profiling DB_DataObject, I discoved that the debug calls where taking * considerable time (well 0.1 ms), so this should stop those calls happening. as * all calls to debug are wrapped with direct variable queries rather than actually calling the funciton * THIS STILL NEEDS FURTHER INVESTIGATION * * @access public * @return object an error object */ function _loadConfig() { global $_DB_DATAOBJECT; $_DB_DATAOBJECT['CONFIG'] = &PEAR::getStaticProperty('DB_DataObject','options'); } /** * Free global arrays associated with this object. * * * @access public * @return none */ function free() { global $_DB_DATAOBJECT; if (isset($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid])) { unset($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid]); } if (isset($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid])) { unset($_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid]); } // clear the staticGet cache as well. $this->_clear_cache(); // this is a huge bug in DB! if (isset($_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5])) { $_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5]->num_rows = array(); } if (is_array($this->_link_loaded)) { foreach ($this->_link_loaded as $do) { if ( !empty($this->{$do}) && is_object($this->{$do}) && method_exists($this->{$do}, 'free') ) { $this->{$do}->free(); } } } } /** * Evaluate whether or not a value is set to null, taking the 'disable_null_strings' option into account. * If the value is a string set to "null" and the "disable_null_strings" option is not set to * true, then the value is considered to be null. * If the value is actually a PHP NULL value, and "disable_null_strings" has been set to * the value "full", then it will also be considered null. - this can not differenticate between not set * * * @param object|array $obj_or_ar * @param string|false $prop prperty * @access private * @return bool object */ function _is_null($obj_or_ar , $prop) { global $_DB_DATAOBJECT; $isset = $prop === false ? isset($obj_or_ar) : (is_array($obj_or_ar) ? isset($obj_or_ar[$prop]) : isset($obj_or_ar->$prop)); $value = $isset ? ($prop === false ? $obj_or_ar : (is_array($obj_or_ar) ? $obj_or_ar[$prop] : $obj_or_ar->$prop)) : null; $options = $_DB_DATAOBJECT['CONFIG']; $null_strings = !isset($options['disable_null_strings']) || $options['disable_null_strings'] === false; $crazy_null = isset($options['disable_null_strings']) && is_string($options['disable_null_strings']) && strtolower($options['disable_null_strings'] === 'full'); if ( $null_strings && $isset && is_string($value) && (strtolower($value) === 'null') ) { return true; } if ( $crazy_null && !$isset ) { return true; } return false; } /** * (deprecated - use ::get / and your own caching method) */ static function staticGet($class, $k, $v = null) { $lclass = strtolower($class); global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } $key = "$k:$v"; if ($v === null) { $key = $k; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { DB_DataObject::debug("$class $key","STATIC GET - TRY CACHE"); } if (!empty($_DB_DATAOBJECT['CACHE'][$lclass][$key])) { return $_DB_DATAOBJECT['CACHE'][$lclass][$key]; } if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) { DB_DataObject::debug("$class $key","STATIC GET - NOT IN CACHE"); } $obj = DB_DataObject::factory(substr($class,strlen($_DB_DATAOBJECT['CONFIG']['class_prefix']))); if (PEAR::isError($obj)) { $dor = new DB_DataObject(); $dor->raiseError("could not autoload $class", DB_DATAOBJECT_ERROR_NOCLASS); $r = false; return $r; } if (!isset($_DB_DATAOBJECT['CACHE'][$lclass])) { $_DB_DATAOBJECT['CACHE'][$lclass] = array(); } if (!$obj->get($k,$v)) { $dor = new DB_DataObject(); $dor->raiseError("No Data return from get $k $v", DB_DATAOBJECT_ERROR_NODATA); $r = false; return $r; } $_DB_DATAOBJECT['CACHE'][$lclass][$key] = $obj; return $_DB_DATAOBJECT['CACHE'][$lclass][$key]; } /** * autoload Class relating to a table * (deprecited - use ::factory) * * @param string $table table * @access private * @return string classname on Success */ function staticAutoloadTable($table) { global $_DB_DATAOBJECT; if (empty($_DB_DATAOBJECT['CONFIG'])) { DB_DataObject::_loadConfig(); } $p = isset($_DB_DATAOBJECT['CONFIG']['class_prefix']) ? $_DB_DATAOBJECT['CONFIG']['class_prefix'] : ''; $class = $p . preg_replace('/[^A-Z0-9]/i','_',ucfirst($table)); $ce = substr(phpversion(),0,1) > 4 ? class_exists($class,false) : class_exists($class); $class = $ce ? $class : DB_DataObject::_autoloadClass($class); return $class; } /* ---- LEGACY BC METHODS - NOT DOCUMENTED - See Documentation on New Methods. ---*/ function _get_table() { return $this->table(); } function _get_keys() { return $this->keys(); } } // technially 4.3.2RC1 was broken!! // looks like 4.3.3 may have problems too.... if (!defined('DB_DATAOBJECT_NO_OVERLOAD')) { if ((phpversion() != '4.3.2-RC1') && (version_compare( phpversion(), "4.3.1") > 0)) { if (version_compare( phpversion(), "5") < 0) { overload('DB_DataObject'); } $GLOBALS['_DB_DATAOBJECT']['OVERLOADED'] = true; } }