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gnu-social/_darcs/pristine/extlib/DB/DataObject.php

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add standard directories Added some of the standard directories darcs-hash:20080506151729-84dde-563da8505e06a7302041c93ab157ced31165876c.gz
2008-05-06 16:17:29 +01:00
<?php
/**
* Object Based Database Query Builder and data store
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 3.0 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_0.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category Database
* @package DB_DataObject
* @author Alan Knowles <alan@akbkhome.com>
* @copyright 1997-2006 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version CVS: $Id: DataObject.php,v 1.439 2008/01/30 02:14:06 alan_k Exp $
* @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;
$GLOBALS['_DB_DATAOBJECT']['QUERYENDTIME'] = 0;
// this will be horrifically slow!!!!
// NOTE: Overload SEGFAULTS ON PHP4 + Zend Optimizer (see define before..)
// these two are BC/FC handlers for call in PHP4/5
if ( substr(phpversion(),0,1) == 5) {
class DB_DataObject_Overload
{
function __call($method,$args)
{
$return = null;
$this->_call($method,$args,$return);
return $return;
}
function __sleep()
{
return array_keys(get_object_vars($this)) ;
}
}
} else {
if (version_compare(phpversion(),'4.3.10','eq') && !defined('DB_DATAOBJECT_NO_OVERLOAD')) {
trigger_error(
"overload does not work with PHP4.3.10, either upgrade
(snaps.php.net) or more recent version
or define DB_DATAOBJECT_NO_OVERLOAD as per the manual.
",E_USER_ERROR);
}
if (!function_exists('clone')) {
// emulate clone - as per php_compact, slow but really the correct behaviour..
eval('function clone($t) { $r = $t; if (method_exists($r,"__clone")) { $r->__clone(); } return $r; }');
}
eval('
class DB_DataObject_Overload {
function __call($method,$args,&$return) {
return $this->_call($method,$args,$return);
}
}
');
}
/*
*
* @package DB_DataObject
* @author Alan Knowles <alan@akbkhome.com>
* @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 = "1.8.8";
/**
* 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->__table}", 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);
}
/**
* An autoloading, caching static get method using key, value (based on get)
*
* Usage:
* $object = DB_DataObject::staticGet("DbTable_mytable",12);
* or
* $object = DB_DataObject::staticGet("DbTable_mytable","name","fred");
*
* or write it into your extended class:
* function &staticGet($k,$v=NULL) { return DB_DataObject::staticGet("This_Class",$k,$v); }
*
* @param string $class class name
* @param string $k column (or value if using keys)
* @param string $v value (optional)
* @access public
* @return object
*/
function &staticGet($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)) {
DB_DataObject::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)) {
DB_DataObject::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];
}
/**
* 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
*
* @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()) ;
$quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']);
$this->_connect();
$DB = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
/* We are checking for method modifyLimitQuery as it is PEAR DB specific */
$sql = 'SELECT ' .
$this->_query['data_select'] . " \n" .
' FROM ' . ($quoteIdentifiers ? $DB->quoteIdentifier($this->__table) : $this->__table) . " \n" .
$this->_join . " \n" .
$this->_query['condition'] . " \n" .
$this->_query['group_by'] . " \n" .
$this->_query['having'] . " \n" .
$this->_query['order_by'] . " \n";
if ((!isset($_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']);
}
}
$this->_query($sql);
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($array));
}
foreach($array as $k=>$v) {
$kk = str_replace(".", "_", $k);
$kk = str_replace(" ", "_", $kk);
if (!empty($_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->__table} DONE", "fetchrow",2);
}
if (($this->_query !== false) && empty($_DB_DATAOBJECT['CONFIG']['keep_query_after_fetch'])) {
$this->_query = false;
}
return true;
}
/**
* 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 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}";
}
/**
* 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 = $this->__table;
if (is_object($from)) {
$table = $from->__table;
$from = array_keys($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];
$items = isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table]) ?
$_DB_DATAOBJECT['INI'][$this->_database][$this->__table] : $this->table();
if (!$items) {
$this->raiseError("insert:No table definition for {$this->__table}",
DB_DATAOBJECT_ERROR_INVALIDCONFIG);
return false;
}
$options = &$_DB_DATAOBJECT['CONFIG'];
$datasaved = 1;
$leftq = '';
$rightq = '';
$seqKeys = isset($_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table]) ?
$_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table] :
$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->__table);
} 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 = $keyvalue;
}
foreach($items as $k => $v) {
// if we are using autoincrement - skip the column...
if ($key && ($k == $key) && $useNative) {
continue;
}
if (!isset($this->$k)) {
continue;
}
// dont insert data into mysql timestamps
// use query() if you really want to do this!!!!
if ($v & DB_DATAOBJECT_MYSQLTIMESTAMP) {
continue;
}
if ($leftq) {
$leftq .= ', ';
$rightq .= ', ';
}
$leftq .= ($quoteIdentifiers ? ($DB->quoteIdentifier($k) . ' ') : "$k ");
if (is_a($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 .= $value;
continue;
}
if (!isset($options['disable_null_strings']) && is_string($this->$k) && (strtolower($this->$k) === 'null') && !($v & DB_DATAOBJECT_NOTNULL)) {
$rightq .= " NULL ";
continue;
}
// DATE is empty... on a col. that can be null..
// note: this may be usefull for time as well..
if (!$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->__table) : $this->__table);
$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->__table));
}
$db_driver = empty($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;
$items = isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table]) ?
$_DB_DATAOBJECT['INI'][$this->_database][$this->__table] : $this->table();
// only apply update against sequence key if it is set?????
$seq = $this->sequenceKey();
if ($seq[0] !== false) {
$keys = array($seq[0]);
if (empty($this->{$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
", DB_DATAOBJECT_ERROR_INVALIDARGS);
return false;
}
} else {
$keys = $this->keys();
}
if (!$items) {
$this->raiseError("update:No table definition for {$this->__table}", 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 = $_DB_DATAOBJECT['CONFIG'];
foreach($items as $k => $v) {
if (!isset($this->$k)) {
continue;
}
// ignore stuff thats
// dont write things that havent changed..
if (($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) : $k);
if (is_a($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 = $value ";
continue;
}
// special values ... at least null is handled...
if (!isset($options['disable_null_strings']) && (strtolower($this->$k) === 'null') && !($v & DB_DATAOBJECT_NOTNULL)) {
$settings .= "$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->__table) : $this->__table);
$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 $useWhere (optional) If DB_DATAOBJECT_WHEREADD_ONLY is passed in then
* we will build the condition only using the whereAdd's. Default is to
* build the condition only using the object parameters.
*
* @access public
* @return mixed True on success, false on failure, 0 on no data affected
*/
function delete($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->__table) : $this->__table);
$sql = "DELETE FROM {$table} {$this->_query['condition']}{$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->__table} $row of {$this->N}", "fetchrow",3);
}
if (!$this->__table) {
$this->raiseError("fetchrow: No table", DB_DATAOBJECT_ERROR_INVALIDCONFIG);
return false;
}
if ($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->__table} $row of {$this->N}", "fetchrow",3);
}
$result = &$_DB_DATAOBJECT['RESULTS'][$this->_DB_resultid];
$array = $result->fetchrow(DB_DATAOBJECT_FETCHMODE_ASSOC,$row);
if (!is_array($array)) {
$this->raiseError("fetchrow: No results available", DB_DATAOBJECT_ERROR_NODATA);
return false;
}
foreach($array as $k => $v) {
$kk = str_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->__table} 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 = $this->keys();
if (!$keys[0] && !is_string($countWhat)) {
$this->raiseError(
"You cannot do run count without keys - use \$do->keys('id');",
DB_DATAOBJECT_ERROR_INVALIDARGS,PEAR_ERROR_DIE);
return false;
}
$table = ($quoteIdentifiers ? $DB->quoteIdentifier($this->__table) : $this->__table);
$key_col = ($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();
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
'limit_start' => '', // the LIMIT condition
'limit_count' => '', // the LIMIT condition
'data_select' => '*', // the columns to be SELECTed
);
/**
* 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) {
$this->_connect();
}
// loaded already?
if (!empty($_DB_DATAOBJECT['INI'][$this->_database])) {
// database loaded - but this is table is not available..
if (
empty($_DB_DATAOBJECT['INI'][$this->_database][$this->__table])
&& !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,$this->__table);
}
return true;
}
if (empty($_DB_DATAOBJECT['CONFIG'])) {
DB_DataObject::_loadConfig();
}
// 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}"]);
}
foreach ($schemas as $ini) {
if (file_exists($ini) && is_file($ini)) {
$_DB_DATAOBJECT['INI'][$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: $ini","databaseStructure",1);
}
}
}
// now have we loaded the structure..
if (!empty($_DB_DATAOBJECT['INI'][$this->_database][$this->__table])) {
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->__table);
// should this fail!!!???
return true;
}
$this->debug("Cant find database schema: {$this->_database}/{$this->__table} \n".
"in links file data: " . print_r($_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()
{
$args = func_get_args();
if (count($args)) {
$this->__table = $args[0];
}
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];
}
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->__table])) {
return $_DB_DATAOBJECT['INI'][$this->_database][$this->__table];
}
$this->databaseStructure();
$ret = array();
if (isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table])) {
$ret = $_DB_DATAOBJECT['INI'][$this->_database][$this->__table];
}
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 private
* @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->__table."__keys"])) {
return array_keys($_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"]);
}
$this->databaseStructure();
if (isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"])) {
return array_keys($_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__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 private
* @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->__table] = $args;
}
if (isset($_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table])) {
return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table];
}
// end call setting (eg. $do->sequenceKeys(a,b,c); )
$keys = $this->keys();
if (!$keys) {
return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table]
= array(false,false,false);
}
$table = isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table]) ?
$_DB_DATAOBJECT['INI'][$this->_database][$this->__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->__table])) {
$usekey = $_DB_DATAOBJECT['CONFIG']['sequence_'.$this->__table];
if (strpos($usekey,':') !== false) {
list($usekey,$seqname) = explode(':',$usekey);
}
}
// 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][$this->__table] = array(false,false,false);
}
if (!empty($_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][$this->__table] = array(false,false,$seqname);
}
if (is_string($ignore)) {
$ignore = $_DB_DATAOBJECT['CONFIG']['ignore_sequence_keys'] = explode(',',$ignore);
}
if (in_array($this->__table,$ignore)) {
return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table] = array(false,false,$seqname);
}
}
$realkeys = $_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"];
// if you are using an old ini file - go back to old behaviour...
if (is_numeric($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][$this->__table] = array(false,false,$seqname);
}
// use native sequence keys...
// technically postgres native here...
// we need to get the new improved tabledata sorted out first.
if ( in_array($dbtype , array('psql', 'mysql', 'mysqli', 'mssql', 'ifx')) &&
($table[$usekey] & DB_DATAOBJECT_INT) &&
isset($realkeys[$usekey]) && ($realkeys[$usekey] == 'N')
) {
return $_DB_DATAOBJECT['SEQUENCE'][$this->_database][$this->__table] = array($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][$this->__table] = array($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])) {
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 (!$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'];
$dsn = isset($this->_database_dsn) ? $this->_database_dsn : null;
if (!$dsn) {
if (!$this->_database) {
$this->_database = isset($options["table_{$this->__table}"]) ? $options["table_{$this->__table}"] : null;
}
if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) {
$this->debug("Checking for database database_{$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", "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'])) {
$this->debug(serialize($_DB_DATAOBJECT['CONNECTIONS']), "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 (!$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 :)
$c = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
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') {
if ($_DB_driver == 'DB') {
$DB->autoCommit(false);
} else {
$DB->beginTransaction();
}
// db backend adds begin anyway from now on..
return true;
}
if (strtoupper($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];
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;
}
}
if (is_a($result,'PEAR_Error')) {
if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) {
$this->debug($result->toString(), "Query Error",1 );
}
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 = $result->numrows();
if (is_a($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->__table) . '.' . $DB->quoteIdentifier($k) )
: "{$this->__table}.{$k}";
if (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 = $value");
continue;
}
if (!isset($options['disable_null_strings']) && (strtolower($this->$k) === 'null') && !($v & DB_DATAOBJECT_NOTNULL)) {
$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));
}
}
/**
* autoload Class relating to a table
* (depreciated - 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;
}
/**
* 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 will eventually be databasename/table
* - and allow modular dataobjects to be written..
* (this also helps proxy creation)
*
*
* @param string $table tablename (use blank to create a new instance of the same class.)
* @access private
* @return DataObject|PEAR_Error
*/
function factory($table = '') {
global $_DB_DATAOBJECT;
if (empty($_DB_DATAOBJECT['CONFIG'])) {
DB_DataObject::_loadConfig();
}
if ($table === '') {
if (is_a($this,'DB_DataObject') && strlen($this->__table)) {
$table = $this->__table;
} else {
return DB_DataObject::raiseError(
"factory did not recieve a table name",
DB_DATAOBJECT_ERROR_INVALIDARGS);
}
}
$p = isset($_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);
// proxy = full|light
if (!$class && isset($_DB_DATAOBJECT['CONFIG']['proxy'])) {
$proxyMethod = 'getProxy'.$_DB_DATAOBJECT['CONFIG']['proxy'];
class_exists('DB_DataObject_Generator') ? '' :
require_once 'DB/DataObject/Generator.php';
$d = new DB_DataObject;
$d->__table = $table;
if (is_a($ret = $d->_connect(), 'PEAR_Error')) {
return $ret;
}
$x = new DB_DataObject_Generator;
return $x->$proxyMethod( $d->_database, $table);
}
if (!$class) {
return DB_DataObject::raiseError(
"factory could not find class $class from $table",
DB_DATAOBJECT_ERROR_INVALIDCONFIG);
}
return new $class;
}
/**
* autoload Class
*
* @param string $class Class
* @access private
* @return string classname on Success
*/
function _autoloadClass($class)
{
global $_DB_DATAOBJECT;
if (empty($_DB_DATAOBJECT['CONFIG'])) {
DB_DataObject::_loadConfig();
}
$class_prefix = empty($_DB_DATAOBJECT['CONFIG']['class_prefix']) ?
'' : $_DB_DATAOBJECT['CONFIG']['class_prefix'];
$table = substr($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($_DB_DATAOBJECT['CONFIG']['class_location'])) {
return false;
}
if (strpos($_DB_DATAOBJECT['CONFIG']['class_location'],'%s') !== false) {
$file = sprintf($_DB_DATAOBJECT['CONFIG']['class_location'], preg_replace('/[^A-Z0-9]/i','_',ucfirst($table)));
} else {
$file = $_DB_DATAOBJECT['CONFIG']['class_location'].'/'.preg_replace('/[^A-Z0-9]/i','_',ucfirst($table)).".php";
}
if (!file_exists($file)) {
$found = false;
foreach(explode(PATH_SEPARATOR, ini_get('include_path')) as $p) {
if (file_exists("$p/$file")) {
$file = "$p/$file";
$found = true;
break;
}
}
if (!$found) {
DB_DataObject::raiseError(
"autoload:Could not find class {$class} using class_location value",
DB_DATAOBJECT_ERROR_INVALIDCONFIG);
return false;
}
}
include_once $file;
$ce = substr(phpversion(),0,1) > 4 ? class_exists($class,false) : class_exists($class);
if (!$ce) {
DB_DataObject::raiseError(
"autoload:Could not autoload {$class}",
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"
*
*
* @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
* null - 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.
$this->_connect();
if (isset($_DB_DATAOBJECT['LINKS'][$this->_database][$this->__table])) {
return $_DB_DATAOBJECT['LINKS'][$this->_database][$this->__table];
}
// attempt to load links file here..
if (!isset($_DB_DATAOBJECT['LINKS'][$this->_database])) {
$schemas = isset($_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}"]);
}
foreach ($schemas as $ini) {
$links =
isset($_DB_DATAOBJECT['CONFIG']["links_{$this->_database}"]) ?
$_DB_DATAOBJECT['CONFIG']["links_{$this->_database}"] :
str_replace('.ini','.links.ini',$ini);
if (empty($_DB_DATAOBJECT['LINKS'][$this->_database]) && file_exists($links) && is_file($links)) {
/* not sure why $links = ... here - TODO check if that works */
$_DB_DATAOBJECT['LINKS'][$this->_database] = parse_ini_file($links, true);
if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) {
$this->debug("Loaded links.ini file: $links","links",1);
}
} else {
if (!empty($_DB_DATAOBJECT['CONFIG']['debug'])) {
$this->debug("Missing links.ini file: $links","links",1);
}
}
}
}
// if there is no link data at all on the file!
// we return null.
if (!isset($_DB_DATAOBJECT['LINKS'][$this->_database])) {
return null;
}
if (isset($_DB_DATAOBJECT['LINKS'][$this->_database][$this->__table])) {
return $_DB_DATAOBJECT['LINKS'][$this->_database][$this->__table];
}
return array();
}
/**
* load related objects
*
* There are two ways to use this, one is to set up a <dbname>.links.ini file
* into a static property named <dbname>.links and specifies the table joins,
* the other highly dependent on naming columns 'correctly' :)
* using colname = xxxxx_yyyyyy
* xxxxxx = related table; (yyyyy = user defined..)
* looks up table xxxxx, for value id=$this->xxxxx
* stores it in $this->_xxxxx_yyyyy
* you can change what object vars the links are stored in by
* changeing the format parameter
*
*
* @param string format (default _%s) where %s is the table name.
* @author Tim White <tim@cyface.com>
* @access public
* @return boolean , true on success
*/
function getLinks($format = '_%s')
{
// get table will load the options.
if ($this->_link_loaded) {
return true;
}
$this->_link_loaded = false;
$cols = $this->table();
$links = $this->links();
$loaded = array();
if ($links) {
foreach($links as $key => $match) {
list($table,$link) = explode(':', $match);
$k = sprintf($format, str_replace('.', '_', $key));
// makes sure that '.' is the end of the key;
if ($p = strpos($key,'.')) {
$key = substr($key, 0, $p);
}
$this->$k = $this->getLink($key, $table, $link);
if (is_object($this->$k)) {
$loaded[] = $k;
}
}
$this->_link_loaded = $loaded;
return true;
}
// this is the autonaming stuff..
// it sends the column name down to getLink and lets that sort it out..
// if there is a links file then it is not used!
// IT IS DEPRECIATED!!!! - USE
if (!is_null($links)) {
return false;
}
foreach (array_keys($cols) as $key) {
if (!($p = strpos($key, '_'))) {
continue;
}
// does the table exist.
$k =sprintf($format, $key);
$this->$k = $this->getLink($key);
if (is_object($this->$k)) {
$loaded[] = $k;
}
}
$this->_link_loaded = $loaded;
return true;
}
/**
* return name from related object
*
* There are two ways to use this, one is to set up a <dbname>.links.ini file
* into a static property named <dbname>.links and specifies the table joins,
* the other is highly dependant on naming columns 'correctly' :)
*
* NOTE: the naming convention is depreciated!!! - use links.ini
*
* using colname = xxxxx_yyyyyy
* xxxxxx = related table; (yyyyy = user defined..)
* looks up table xxxxx, for value id=$this->xxxxx
* stores it in $this->_xxxxx_yyyyy
*
* you can also use $this->getLink('thisColumnName','otherTable','otherTableColumnName')
*
*
* @param string $row either row or row.xxxxx
* @param string $table name of table to look up value in
* @param string $link name of column in other table to match
* @author Tim White <tim@cyface.com>
* @access public
* @return mixed object on success
*/
function getLink($row, $table = null, $link = false)
{
// GUESS THE LINKED TABLE.. (if found - recursevly call self)
if ($table === null) {
$links = $this->links();
if (is_array($links)) {
if ($links[$row]) {
list($table,$link) = explode(':', $links[$row]);
if ($p = strpos($row,".")) {
$row = substr($row,0,$p);
}
return $this->getLink($row,$table,$link);
}
$this->raiseError(
"getLink: $row is not defined as a link (normally this is ok)",
DB_DATAOBJECT_ERROR_NODATA);
$r = false;
return $r;// technically a possible error condition?
}
// use the old _ method - this shouldnt happen if called via getLinks()
if (!($p = strpos($row, '_'))) {
$r = null;
return $r;
}
$table = substr($row, 0, $p);
return $this->getLink($row, $table);
}
if (!isset($this->$row)) {
$this->raiseError("getLink: row not set $row", DB_DATAOBJECT_ERROR_NODATA);
return false;
}
// check to see if we know anything about this table..
$obj = $this->factory($table);
if (!is_a($obj,'DB_DataObject')) {
$this->raiseError(
"getLink:Could not find class for row $row, table $table",
DB_DATAOBJECT_ERROR_INVALIDCONFIG);
return false;
}
if ($link) {
if ($obj->get($link, $this->$row)) {
$obj->free();
return $obj;
}
return false;
}
if ($obj->get($this->$row)) {
$obj->free();
return $obj;
}
return false;
}
/**
* IS THIS SUPPORTED/USED ANYMORE????
*return a list of options for a linked table
*
* This is highly dependant on naming columns 'correctly' :)
* using colname = xxxxx_yyyyyy
* xxxxxx = related table; (yyyyy = user defined..)
* looks up table xxxxx, for value id=$this->xxxxx
* stores it in $this->_xxxxx_yyyyy
*
* @access public
* @return array of results (empty array on failure)
*/
function &getLinkArray($row, $table = null)
{
$ret = array();
if (!$table) {
$links = $this->links();
if (is_array($links)) {
if (!isset($links[$row])) {
// failed..
return $ret;
}
list($table,$link) = explode(':',$links[$row]);
} else {
if (!($p = strpos($row,'_'))) {
return $ret;
}
$table = substr($row,0,$p);
}
}
$c = $this->factory($table);
if (!is_a($c,'DB_DataObject')) {
$this->raiseError(
"getLinkArray:Could not find class for row $row, table $table",
DB_DATAOBJECT_ERROR_INVALIDCONFIG
);
return $ret;
}
// if the user defined method list exists - use it...
if (method_exists($c, 'listFind')) {
$c->listFind($this->id);
} else {
$c->find();
}
while ($c->fetch()) {
$ret[] = $c;
}
return $ret;
}
/**
* 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..
*
*
* @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 $joinCol string The column on This objects table to match (needed
* if this table links to the child object in
* multiple places eg.
* user->friend (is a link to another user)
* user->mother (is a link to another user..)
*
* optional 'useWhereAsOn' bool default false;
* convert the where argments from the object being added
* into ON arguments.
*
*
* @return none
* @access public
* @author Stijn de Reede <sjr@gmx.co.uk>
*/
function joinAdd($obj = false, $joinType='INNER', $joinAs=false, $joinCol=false)
{
global $_DB_DATAOBJECT;
if ($obj === false) {
$this->_join = '';
return;
}
$useWhereAsOn = false;
// support for 2nd argument as an array of options
if (is_array($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 = $obj[0];
list($toTable,$ofield) = explode(':',$obj[1]);
$obj = DB_DataObject::factory($toTable);
if (!$obj || is_a($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'][$this->_database_dsn_md5];
/* look up the links for obj table */
//print_r($obj->links());
if (!$ofield && ($olinks = $obj->links())) {
foreach ($olinks as $k => $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] == $this->__table) {
// you have explictly specified the column
// and the col is listed here..
// not sure if 1:1 table could cause probs here..
if ($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 = $ar[1];
break;
}
}
}
/* otherwise see if there are any links from this table to the obj. */
//print_r($this->links());
if (($ofield === false) && ($links = $this->links())) {
foreach ($links as $k => $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] == $obj->__table) {
if ($joinCol !== false) {
if ($k == $joinCol) {
$tfield = $k;
$ofield = $ar[1];
break;
} else {
continue;
}
} else {
$tfield = $k;
$ofield = $ar[1];
break;
}
}
}
}
// finally if these two table have column names that match do a join by default on them
if (($ofield === false) && $joinCol) {
$ofield = $joinCol;
$tfield = $joinCol;
}
/* did I find a conneciton between them? */
if ($ofield === false) {
$this->raiseError(
"joinAdd: {$obj->__table} has no link with {$this->__table}",
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->__table;
}
$quoteIdentifiers = !empty($_DB_DATAOBJECT['CONFIG']['quote_identifiers']);
$options = $_DB_DATAOBJECT['CONFIG'];
// not sure how portable adding database prefixes is..
$objTable = $quoteIdentifiers ?
$DB->quoteIdentifier($obj->__table) :
$obj->__table ;
$dbPrefix = '';
if (strlen($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;
}
foreach($items as $k => $v) {
if (!isset($obj->$k)) {
continue;
}
$kSql = ($quoteIdentifiers ? $DB->quoteIdentifier($k) : $k);
if ($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->$k}");
continue;
}
if (is_a($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;
}
if (!isset($options['disable_null_strings']) && strtolower($value) === 'null') {
$obj->whereAdd("{$joinAs}.{$kSql} IS NULL");
continue;
} else {
$obj->whereAdd("{$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 = $this->__table;
if ($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->__table) : $obj->__table) != $joinAs;
if ($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
$this->_join .= "\n {$joinType} JOIN {$objTable} {$fullJoinAs}";
if (is_array($ofield)) {
$key_count = count($ofield);
for($i = 0; $i < $key_count; $i++) {
if ($i == 0) {
$this->_join .= " ON ({$joinAs}.{$ofield[$i]}={$table}.{$tfield[$i]}) ";
}
else {
$this->_join .= " AND {$joinAs}.{$ofield[$i]}={$table}.{$tfield[$i]} ";
}
}
$this->_join .= ' ' . $appendJoin . ' ';
} else {
$this->_join .= " ON ({$joinAs}.{$ofield}={$table}.{$tfield}) {$appendJoin} ";
}
break;
case '': // this is just a standard multitable select..
$this->_join .= "\n , {$objTable} {$fullJoinAs} {$appendJoin}";
$this->whereAdd("{$joinAs}.{$ofield}={$table}.{$tfield}");
}
return true;
}
/**
* 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->__table}",
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
}
if (is_object($from) && isset($from->{sprintf($format,$k)})) {
$kk = (strtolower($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($from[$k]) && $skipEmpty) {
continue;
}
if (!isset($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] = $ret;
}
continue;
}
if (is_object($from[sprintf($format,$k)])) {
continue;
}
if (is_array($from[sprintf($format,$k)])) {
continue;
}
$ret = $this->fromValue($k,$from[sprintf($format,$k)]);
if ($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 $object->toArray('user[%s]')
*
* will also return links converted to arrays.
*
* @param string sprintf format for array
* @param bool empty only return elemnts that have a value set.
*
* @access public
* @return array of key => value for row
*/
function toArray($format = '%s', $hideEmpty = false)
{
global $_DB_DATAOBJECT;
$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) ?
array_merge($_DB_DATAOBJECT['RESULTFIELDS'][$this->_DB_resultid],$this->table()) :
$this->table();
foreach($ar as $k=>$v) {
if (!isset($this->$k)) {
if (!$hideEmpty) {
$ret[sprintf($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'))) {
$ret[sprintf($format,$k)] = $this->{'get'.$k}();
continue;
}
// should this call toValue() ???
$ret[sprintf($format,$k)] = $this->$k;
}
if (!$this->_link_loaded) {
return $ret;
}
foreach($this->_link_loaded as $k) {
$ret[sprintf($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 (!isset($this->$key) && ($val & DB_DATAOBJECT_NOTNULL)) {
// dont check empty sequence key values..
if (($key == $seq[0]) && ($seq[1] == true)) {
continue;
}
$ret[$key] = false;
continue;
}
if (!isset($options['disable_null_strings']) && is_string($this->$key) && (strtolower($this->$key) == 'null')) {
if ($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])) {
$this->$col = $value;
return true;
}
//echo "FROM VALUE $col, {$cols[$col]}, $value\n";
switch (true) {
// set to null and column is can be null...
case (!isset($options['disable_null_strings']) && (strtolower($value) == 'null') && (!($cols[$col] & DB_DATAOBJECT_NOTNULL))):
case (is_object($value) && is_a($value,'DB_DataObject_Cast')):
$this->$col = $value;
return true;
// fail on setting null on a not null field..
case (!isset($options['disable_null_strings']) && (strtolower($value) == 'null') && ($cols[$col] & DB_DATAOBJECT_NOTNULL)):
return false;
case (($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') ? '<font color="red">' : '<font>';
echo "<code>{$colorize}<B>$class: $logtype:</B> ". nl2br(htmlspecialchars($message)) . "</font></code><BR>\n";
}
/**
* sets and returns debug level
* eg. DB_DataObject::debugLevel(4);
*
* @param int $v level
* @access public
* @return none
*/
function debugLevel($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;
}
$error = &PEAR::getStaticProperty('DB_DataObject','lastError');
// this will never work totally with PHP's object model.
// as this is passed on static calls (like staticGet in our case)
if (isset($this) && is_object($this) && is_subclass_of($this,'db_dataobject')) {
$this->_lastError = $error;
}
$_DB_DATAOBJECT['LASTERROR'] = $error;
// no checks for production here?....... - we log errors before we throw them.
DB_DataObject::debug($message,'ERROR',1);
if (PEAR::isError($message)) {
$error = $message;
} else {
require_once 'DB/DataObject/Error.php';
$error = PEAR::raiseError($message, $type, $behaviour,
$opts=null, $userinfo=null, 'DB_DataObject_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();
}
}
/* ---- 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;
}
}
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