890 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			890 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| 
 | |
| /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
 | |
| 
 | |
| /**
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|  * The PEAR DB driver for PHP's odbc extension
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|  * for interacting with databases via ODBC connections
 | |
|  *
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|  * PHP version 5
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|  *
 | |
|  * 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.
 | |
|  *
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|  * @category   Database
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|  * @package    DB
 | |
|  * @author     Stig Bakken <ssb@php.net>
 | |
|  * @author     Daniel Convissor <danielc@php.net>
 | |
|  * @copyright  1997-2007 The PHP Group
 | |
|  * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
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|  * @version    CVS: $Id$
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|  * @link       http://pear.php.net/package/DB
 | |
|  */
 | |
| 
 | |
| /**
 | |
|  * Obtain the DB_common class so it can be extended from
 | |
|  */
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| //require_once 'DB/common.php';
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| require_once 'common.php';
 | |
| 
 | |
| /**
 | |
|  * The methods PEAR DB uses to interact with PHP's odbc extension
 | |
|  * for interacting with databases via ODBC connections
 | |
|  *
 | |
|  * These methods overload the ones declared in DB_common.
 | |
|  *
 | |
|  * More info on ODBC errors could be found here:
 | |
|  * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/trblsql/tr_err_odbc_5stz.asp
 | |
|  *
 | |
|  * @category   Database
 | |
|  * @package    DB
 | |
|  * @author     Stig Bakken <ssb@php.net>
 | |
|  * @author     Daniel Convissor <danielc@php.net>
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|  * @copyright  1997-2007 The PHP Group
 | |
|  * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 | |
|  * @version    Release: 1.9.2
 | |
|  * @link       http://pear.php.net/package/DB
 | |
|  */
 | |
| class DB_odbc extends DB_common
 | |
| {
 | |
|     // {{{ properties
 | |
| 
 | |
|     /**
 | |
|      * The DB driver type (mysql, oci8, odbc, etc.)
 | |
|      * @var string
 | |
|      */
 | |
|     public $phptype = 'odbc';
 | |
| 
 | |
|     /**
 | |
|      * The database syntax variant to be used (db2, access, etc.), if any
 | |
|      * @var string
 | |
|      */
 | |
|     public $dbsyntax = 'sql92';
 | |
| 
 | |
|     /**
 | |
|      * The capabilities of this DB implementation
 | |
|      *
 | |
|      * The 'new_link' element contains the PHP version that first provided
 | |
|      * new_link support for this DBMS.  Contains false if it's unsupported.
 | |
|      *
 | |
|      * Meaning of the 'limit' element:
 | |
|      *   + 'emulate' = emulate with fetch row by number
 | |
|      *   + 'alter'   = alter the query
 | |
|      *   + false     = skip rows
 | |
|      *
 | |
|      * NOTE: The feature set of the following drivers are different than
 | |
|      * the default:
 | |
|      *   + solid: 'transactions' = true
 | |
|      *   + navision: 'limit' = false
 | |
|      *
 | |
|      * @var array
 | |
|      */
 | |
|     public $features = array(
 | |
|         'limit' => 'emulate',
 | |
|         'new_link' => false,
 | |
|         'numrows' => true,
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|         'pconnect' => true,
 | |
|         'prepare' => false,
 | |
|         'ssl' => false,
 | |
|         'transactions' => false,
 | |
|     );
 | |
| 
 | |
|     /**
 | |
|      * A mapping of native error codes to DB error codes
 | |
|      * @var array
 | |
|      */
 | |
|     public $errorcode_map = array(
 | |
|         '01004' => DB_ERROR_TRUNCATED,
 | |
|         '07001' => DB_ERROR_MISMATCH,
 | |
|         '21S01' => DB_ERROR_VALUE_COUNT_ON_ROW,
 | |
|         '21S02' => DB_ERROR_MISMATCH,
 | |
|         '22001' => DB_ERROR_INVALID,
 | |
|         '22003' => DB_ERROR_INVALID_NUMBER,
 | |
|         '22005' => DB_ERROR_INVALID_NUMBER,
 | |
|         '22008' => DB_ERROR_INVALID_DATE,
 | |
|         '22012' => DB_ERROR_DIVZERO,
 | |
|         '23000' => DB_ERROR_CONSTRAINT,
 | |
|         '23502' => DB_ERROR_CONSTRAINT_NOT_NULL,
 | |
|         '23503' => DB_ERROR_CONSTRAINT,
 | |
|         '23504' => DB_ERROR_CONSTRAINT,
 | |
|         '23505' => DB_ERROR_CONSTRAINT,
 | |
|         '24000' => DB_ERROR_INVALID,
 | |
|         '34000' => DB_ERROR_INVALID,
 | |
|         '37000' => DB_ERROR_SYNTAX,
 | |
|         '42000' => DB_ERROR_SYNTAX,
 | |
|         '42601' => DB_ERROR_SYNTAX,
 | |
|         'IM001' => DB_ERROR_UNSUPPORTED,
 | |
|         'S0000' => DB_ERROR_NOSUCHTABLE,
 | |
|         'S0001' => DB_ERROR_ALREADY_EXISTS,
 | |
|         'S0002' => DB_ERROR_NOSUCHTABLE,
 | |
|         'S0011' => DB_ERROR_ALREADY_EXISTS,
 | |
|         'S0012' => DB_ERROR_NOT_FOUND,
 | |
|         'S0021' => DB_ERROR_ALREADY_EXISTS,
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|         'S0022' => DB_ERROR_NOSUCHFIELD,
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|         'S1009' => DB_ERROR_INVALID,
 | |
|         'S1090' => DB_ERROR_INVALID,
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|         'S1C00' => DB_ERROR_NOT_CAPABLE,
 | |
|     );
 | |
| 
 | |
|     /**
 | |
|      * The raw database connection created by PHP
 | |
|      * @var resource
 | |
|      */
 | |
|     public $connection;
 | |
| 
 | |
|     /**
 | |
|      * The DSN information for connecting to a database
 | |
|      * @var array
 | |
|      */
 | |
|     public $dsn = array();
 | |
| 
 | |
| 
 | |
|     /**
 | |
|      * The number of rows affected by a data manipulation query
 | |
|      * @var integer
 | |
|      * @access private
 | |
|      */
 | |
|     public $affected = 0;
 | |
| 
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ constructor
 | |
| 
 | |
|     /**
 | |
|      * This constructor calls <kbd>parent::__construct()</kbd>
 | |
|      *
 | |
|      * @return void
 | |
|      */
 | |
|     public function __construct()
 | |
|     {
 | |
|         parent::__construct();
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ connect()
 | |
| 
 | |
|     /**
 | |
|      * Connect to the database server, log in and open the database
 | |
|      *
 | |
|      * Don't call this method directly.  Use DB::connect() instead.
 | |
|      *
 | |
|      * PEAR DB's odbc driver supports the following extra DSN options:
 | |
|      *   + cursor  The type of cursor to be used for this connection.
 | |
|      *
 | |
|      * @param array $dsn the data source name
 | |
|      * @param bool $persistent should the connection be persistent?
 | |
|      *
 | |
|      * @return int|object
 | |
|      */
 | |
|     public function connect($dsn, $persistent = false)
 | |
|     {
 | |
|         if (!PEAR::loadExtension('odbc')) {
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|             return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
 | |
|         }
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| 
 | |
|         $this->dsn = $dsn;
 | |
|         if ($dsn['dbsyntax']) {
 | |
|             $this->dbsyntax = $dsn['dbsyntax'];
 | |
|         }
 | |
|         switch ($this->dbsyntax) {
 | |
|             case 'access':
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|             case 'db2':
 | |
|             case 'solid':
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|                 $this->features['transactions'] = true;
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|                 break;
 | |
|             case 'navision':
 | |
|                 $this->features['limit'] = false;
 | |
|         }
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| 
 | |
|         /*
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|          * This is hear for backwards compatibility. Should have been using
 | |
|          * 'database' all along, but prior to 1.6.0RC3 'hostspec' was used.
 | |
|          */
 | |
|         if ($dsn['database']) {
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|             $odbcdsn = $dsn['database'];
 | |
|         } elseif ($dsn['hostspec']) {
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|             $odbcdsn = $dsn['hostspec'];
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|         } else {
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|             $odbcdsn = 'localhost';
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|         }
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| 
 | |
|         $connect_function = $persistent ? 'odbc_pconnect' : 'odbc_connect';
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| 
 | |
|         if (empty($dsn['cursor'])) {
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|             $this->connection = @$connect_function(
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|                 $odbcdsn,
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|                 $dsn['username'],
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|                 $dsn['password']
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|             );
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|         } else {
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|             $this->connection = @$connect_function(
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|                 $odbcdsn,
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|                 $dsn['username'],
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|                 $dsn['password'],
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|                 $dsn['cursor']
 | |
|             );
 | |
|         }
 | |
| 
 | |
|         if (!is_resource($this->connection)) {
 | |
|             return $this->raiseError(
 | |
|                 DB_ERROR_CONNECT_FAILED,
 | |
|                 null,
 | |
|                 null,
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|                 null,
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|                 $this->errorNative()
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|             );
 | |
|         }
 | |
|         return DB_OK;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ disconnect()
 | |
| 
 | |
|     /**
 | |
|      * Gets the DBMS' native error code and message produced by the last query
 | |
|      *
 | |
|      * @return string  the DBMS' error code and message
 | |
|      */
 | |
|     public function errorNative()
 | |
|     {
 | |
|         if (!is_resource($this->connection)) {
 | |
|             return @odbc_error() . ' ' . @odbc_errormsg();
 | |
|         }
 | |
|         return @odbc_error($this->connection) . ' ' . @odbc_errormsg($this->connection);
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ simpleQuery()
 | |
| 
 | |
|     /**
 | |
|      * Disconnects from the database server
 | |
|      *
 | |
|      * @return bool|void
 | |
|      */
 | |
|     public function disconnect()
 | |
|     {
 | |
|         $err = @odbc_close($this->connection);
 | |
|         $this->connection = null;
 | |
|         return $err;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ nextResult()
 | |
| 
 | |
|     /**
 | |
|      * Sends a query to the database server
 | |
|      *
 | |
|      * @param string  the SQL query string
 | |
|      *
 | |
|      * @return mixed  + a PHP result resrouce for successful SELECT queries
 | |
|      *                + the DB_OK constant for other successful queries
 | |
|      *                + a DB_Error object on failure
 | |
|      */
 | |
|     public function simpleQuery($query)
 | |
|     {
 | |
|         $this->last_query = $query;
 | |
|         $query = $this->modifyQuery($query);
 | |
|         $result = @odbc_exec($this->connection, $query);
 | |
|         if (!$result) {
 | |
|             return $this->odbcRaiseError(); // XXX ERRORMSG
 | |
|         }
 | |
|         // Determine which queries that should return data, and which
 | |
|         // should return an error code only.
 | |
|         if ($this->_checkManip($query)) {
 | |
|             $this->affected = $result; // For affectedRows()
 | |
|             return DB_OK;
 | |
|         }
 | |
|         $this->affected = 0;
 | |
|         return $result;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ fetchInto()
 | |
| 
 | |
|     /**
 | |
|      * Produces a DB_Error object regarding the current problem
 | |
|      *
 | |
|      * @param int $errno if the error is being manually raised pass a
 | |
|      *                     DB_ERROR* constant here.  If this isn't passed
 | |
|      *                     the error information gathered from the DBMS.
 | |
|      *
 | |
|      * @return object  the DB_Error object
 | |
|      *
 | |
|      * @see DB_common::raiseError(),
 | |
|      *      DB_odbc::errorNative(), DB_common::errorCode()
 | |
|      */
 | |
|     public function odbcRaiseError($errno = null)
 | |
|     {
 | |
|         if ($errno === null) {
 | |
|             switch ($this->dbsyntax) {
 | |
|                 case 'access':
 | |
|                     if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
 | |
|                         $this->errorcode_map['07001'] = DB_ERROR_NOSUCHFIELD;
 | |
|                     } else {
 | |
|                         // Doing this in case mode changes during runtime.
 | |
|                         $this->errorcode_map['07001'] = DB_ERROR_MISMATCH;
 | |
|                     }
 | |
| 
 | |
|                     $native_code = odbc_error($this->connection);
 | |
| 
 | |
|                     // S1000 is for "General Error."  Let's be more specific.
 | |
|                     if ($native_code == 'S1000') {
 | |
|                         $errormsg = odbc_errormsg($this->connection);
 | |
|                         static $error_regexps;
 | |
|                         if (!isset($error_regexps)) {
 | |
|                             $error_regexps = array(
 | |
|                                 '/includes related records.$/i' => DB_ERROR_CONSTRAINT,
 | |
|                                 '/cannot contain a Null value/i' => DB_ERROR_CONSTRAINT_NOT_NULL,
 | |
|                             );
 | |
|                         }
 | |
|                         foreach ($error_regexps as $regexp => $code) {
 | |
|                             if (preg_match($regexp, $errormsg)) {
 | |
|                                 return $this->raiseError(
 | |
|                                     $code,
 | |
|                                     null,
 | |
|                                     null,
 | |
|                                     null,
 | |
|                                     $native_code . ' ' . $errormsg
 | |
|                                 );
 | |
|                             }
 | |
|                         }
 | |
|                         $errno = DB_ERROR;
 | |
|                     } else {
 | |
|                         $errno = $this->errorCode($native_code);
 | |
|                     }
 | |
|                     break;
 | |
|                 default:
 | |
|                     $errno = $this->errorCode(odbc_error($this->connection));
 | |
|             }
 | |
|         }
 | |
|         return $this->raiseError(
 | |
|             $errno,
 | |
|             null,
 | |
|             null,
 | |
|             null,
 | |
|             $this->errorNative()
 | |
|         );
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ freeResult()
 | |
| 
 | |
|     /**
 | |
|      * Move the internal odbc result pointer to the next available result
 | |
|      *
 | |
|      * @param a valid fbsql result resource
 | |
|      *
 | |
|      * @access public
 | |
|      *
 | |
|      * @return true if a result is available otherwise return false
 | |
|      */
 | |
|     public function nextResult($result)
 | |
|     {
 | |
|         return @odbc_next_result($result);
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ numCols()
 | |
| 
 | |
|     /**
 | |
|      * Places a row from the result set into the given array
 | |
|      *
 | |
|      * Formating of the array and the data therein are configurable.
 | |
|      * See DB_result::fetchInto() for more information.
 | |
|      *
 | |
|      * This method is not meant to be called directly.  Use
 | |
|      * DB_result::fetchInto() instead.  It can't be declared "protected"
 | |
|      * because DB_result is a separate object.
 | |
|      *
 | |
|      * @param resource $result the query result resource
 | |
|      * @param array $arr the referenced array to put the data in
 | |
|      * @param int $fetchmode how the resulting array should be indexed
 | |
|      * @param int $rownum the row number to fetch (0 = first row)
 | |
|      *
 | |
|      * @return mixed  DB_OK on success, NULL when the end of a result set is
 | |
|      *                 reached or on failure
 | |
|      *
 | |
|      * @see DB_result::fetchInto()
 | |
|      */
 | |
|     public function fetchInto($result, &$arr, $fetchmode, $rownum = null)
 | |
|     {
 | |
|         $arr = array();
 | |
|         if ($rownum !== null) {
 | |
|             $rownum++; // ODBC first row is 1
 | |
|             if (version_compare(phpversion(), '4.2.0', 'ge')) {
 | |
|                 $cols = @odbc_fetch_into($result, $arr, $rownum);
 | |
|             } else {
 | |
|                 $cols = @odbc_fetch_into($result, $rownum, $arr);
 | |
|             }
 | |
|         } else {
 | |
|             $cols = @odbc_fetch_into($result, $arr);
 | |
|         }
 | |
|         if (!$cols) {
 | |
|             return null;
 | |
|         }
 | |
|         if ($fetchmode !== DB_FETCHMODE_ORDERED) {
 | |
|             for ($i = 0; $i < count($arr); $i++) {
 | |
|                 $colName = @odbc_field_name($result, $i + 1);
 | |
|                 $a[$colName] = $arr[$i];
 | |
|             }
 | |
|             if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
 | |
|                 $a = array_change_key_case($a, CASE_LOWER);
 | |
|             }
 | |
|             $arr = $a;
 | |
|         }
 | |
|         if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
 | |
|             $this->_rtrimArrayValues($arr);
 | |
|         }
 | |
|         if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
 | |
|             $this->_convertNullArrayValuesToEmpty($arr);
 | |
|         }
 | |
|         return DB_OK;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ affectedRows()
 | |
| 
 | |
|     /**
 | |
|      * Deletes the result set and frees the memory occupied by the result set
 | |
|      *
 | |
|      * This method is not meant to be called directly.  Use
 | |
|      * DB_result::free() instead.  It can't be declared "protected"
 | |
|      * because DB_result is a separate object.
 | |
|      *
 | |
|      * @param resource $result PHP's query result resource
 | |
|      *
 | |
|      * @return bool  TRUE on success, FALSE if $result is invalid
 | |
|      *
 | |
|      * @see DB_result::free()
 | |
|      */
 | |
|     public function freeResult($result)
 | |
|     {
 | |
|         return is_resource($result) ? odbc_free_result($result) : false;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ numRows()
 | |
| 
 | |
|     /**
 | |
|      * Gets the number of columns in a result set
 | |
|      *
 | |
|      * This method is not meant to be called directly.  Use
 | |
|      * DB_result::numCols() instead.  It can't be declared "protected"
 | |
|      * because DB_result is a separate object.
 | |
|      *
 | |
|      * @param resource $result PHP's query result resource
 | |
|      *
 | |
|      * @return int|object
 | |
|      *
 | |
|      * @see DB_result::numCols()
 | |
|      */
 | |
|     public function numCols($result)
 | |
|     {
 | |
|         $cols = @odbc_num_fields($result);
 | |
|         if (!$cols) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         return $cols;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ quoteIdentifier()
 | |
| 
 | |
|     /**
 | |
|      * Determines the number of rows affected by a data maniuplation query
 | |
|      *
 | |
|      * 0 is returned for queries that don't manipulate data.
 | |
|      *
 | |
|      * @return int|object
 | |
|      */
 | |
|     public function affectedRows()
 | |
|     {
 | |
|         if (empty($this->affected)) {  // In case of SELECT stms
 | |
|             return 0;
 | |
|         }
 | |
|         $nrows = @odbc_num_rows($this->affected);
 | |
|         if ($nrows == -1) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         return $nrows;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ nextId()
 | |
| 
 | |
|     /**
 | |
|      * Gets the number of rows in a result set
 | |
|      *
 | |
|      * Not all ODBC drivers support this functionality.  If they don't
 | |
|      * a DB_Error object for DB_ERROR_UNSUPPORTED is returned.
 | |
|      *
 | |
|      * This method is not meant to be called directly.  Use
 | |
|      * DB_result::numRows() instead.  It can't be declared "protected"
 | |
|      * because DB_result is a separate object.
 | |
|      *
 | |
|      * @param resource $result PHP's query result resource
 | |
|      *
 | |
|      * @return int|object
 | |
|      *
 | |
|      * @see DB_result::numRows()
 | |
|      */
 | |
|     public function numRows($result)
 | |
|     {
 | |
|         $nrows = @odbc_num_rows($result);
 | |
|         if ($nrows == -1) {
 | |
|             return $this->odbcRaiseError(DB_ERROR_UNSUPPORTED);
 | |
|         }
 | |
|         if ($nrows === false) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         return $nrows;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Quotes a string so it can be safely used as a table or column name
 | |
|      *
 | |
|      * Use 'mssql' as the dbsyntax in the DB DSN only if you've unchecked
 | |
|      * "Use ANSI quoted identifiers" when setting up the ODBC data source.
 | |
|      *
 | |
|      * @param string $str identifier name to be quoted
 | |
|      *
 | |
|      * @return string  quoted identifier string
 | |
|      *
 | |
|      * @see DB_common::quoteIdentifier()
 | |
|      * @since Method available since Release 1.6.0
 | |
|      */
 | |
|     public function quoteIdentifier($str)
 | |
|     {
 | |
|         switch ($this->dsn['dbsyntax']) {
 | |
|             case 'access':
 | |
|                 return '[' . $str . ']';
 | |
|             case 'mssql':
 | |
|             case 'sybase':
 | |
|                 return '[' . str_replace(']', ']]', $str) . ']';
 | |
|             case 'mysql':
 | |
|             case 'mysqli':
 | |
|                 return '`' . $str . '`';
 | |
|             default:
 | |
|                 return '"' . str_replace('"', '""', $str) . '"';
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ dropSequence()
 | |
| 
 | |
|     /**
 | |
|      * Returns the next free id in a sequence
 | |
|      *
 | |
|      * @param string $seq_name name of the sequence
 | |
|      * @param boolean $ondemand when true, the seqence is automatically
 | |
|      *                            created if it does not exist
 | |
|      *
 | |
|      * @return int|object
 | |
|      *               A DB_Error object on failure.
 | |
|      *
 | |
|      * @see DB_common::nextID(), DB_common::getSequenceName(),
 | |
|      *      DB_odbc::createSequence(), DB_odbc::dropSequence()
 | |
|      */
 | |
|     public function nextId($seq_name, $ondemand = true)
 | |
|     {
 | |
|         $seqname = $this->getSequenceName($seq_name);
 | |
|         $repeat = 0;
 | |
|         do {
 | |
|             $this->pushErrorHandling(PEAR_ERROR_RETURN);
 | |
|             $result = $this->query("update ${seqname} set id = id + 1");
 | |
|             $this->popErrorHandling();
 | |
|             if ($ondemand && DB::isError($result) &&
 | |
|                 $result->getCode() == DB_ERROR_NOSUCHTABLE) {
 | |
|                 $repeat = 1;
 | |
|                 $this->pushErrorHandling(PEAR_ERROR_RETURN);
 | |
|                 $result = $this->createSequence($seq_name);
 | |
|                 $this->popErrorHandling();
 | |
|                 if (DB::isError($result)) {
 | |
|                     return $this->raiseError($result);
 | |
|                 }
 | |
|                 $result = $this->query("insert into ${seqname} (id) values(0)");
 | |
|             } else {
 | |
|                 $repeat = 0;
 | |
|             }
 | |
|         } while ($repeat);
 | |
| 
 | |
|         if (DB::isError($result)) {
 | |
|             return $this->raiseError($result);
 | |
|         }
 | |
| 
 | |
|         $result = $this->query("select id from ${seqname}");
 | |
|         if (DB::isError($result)) {
 | |
|             return $result;
 | |
|         }
 | |
| 
 | |
|         $row = $result->fetchRow(DB_FETCHMODE_ORDERED);
 | |
|         if (DB::isError($row || !$row)) {
 | |
|             return $row;
 | |
|         }
 | |
| 
 | |
|         return $row[0];
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ autoCommit()
 | |
| 
 | |
|     /**
 | |
|      * Creates a new sequence
 | |
|      *
 | |
|      * @param string $seq_name name of the new sequence
 | |
|      *
 | |
|      * @return int  DB_OK on success.  A DB_Error object on failure.
 | |
|      *
 | |
|      * @see DB_common::createSequence(), DB_common::getSequenceName(),
 | |
|      *      DB_odbc::nextID(), DB_odbc::dropSequence()
 | |
|      */
 | |
|     public function createSequence($seq_name)
 | |
|     {
 | |
|         return $this->query('CREATE TABLE '
 | |
|             . $this->getSequenceName($seq_name)
 | |
|             . ' (id integer NOT NULL,'
 | |
|             . ' PRIMARY KEY(id))');
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ commit()
 | |
| 
 | |
|     /**
 | |
|      * Deletes a sequence
 | |
|      *
 | |
|      * @param string $seq_name name of the sequence to be deleted
 | |
|      *
 | |
|      * @return int  DB_OK on success.  A DB_Error object on failure.
 | |
|      *
 | |
|      * @see DB_common::dropSequence(), DB_common::getSequenceName(),
 | |
|      *      DB_odbc::nextID(), DB_odbc::createSequence()
 | |
|      */
 | |
|     public function dropSequence($seq_name)
 | |
|     {
 | |
|         return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ rollback()
 | |
| 
 | |
|     /**
 | |
|      * Enables or disables automatic commits
 | |
|      *
 | |
|      * @param bool $onoff true turns it on, false turns it off
 | |
|      *
 | |
|      * @return int|object
 | |
|      *               doesn't support auto-committing transactions.
 | |
|      */
 | |
|     public function autoCommit($onoff = false)
 | |
|     {
 | |
|         if (!@odbc_autocommit($this->connection, $onoff)) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         return DB_OK;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ odbcRaiseError()
 | |
| 
 | |
|     /**
 | |
|      * Commits the current transaction
 | |
|      *
 | |
|      * @return int|object
 | |
|      */
 | |
|     public function commit()
 | |
|     {
 | |
|         if (!@odbc_commit($this->connection)) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         return DB_OK;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ errorNative()
 | |
| 
 | |
|     /**
 | |
|      * Reverts the current transaction
 | |
|      *
 | |
|      * @return int|object
 | |
|      */
 | |
|     public function rollback()
 | |
|     {
 | |
|         if (!@odbc_rollback($this->connection)) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         return DB_OK;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ tableInfo()
 | |
| 
 | |
|     /**
 | |
|      * Returns information about a table or a result set
 | |
|      *
 | |
|      * @param object|string $result DB_result object from a query or a
 | |
|      *                                 string containing the name of a table.
 | |
|      *                                 While this also accepts a query result
 | |
|      *                                 resource identifier, this behavior is
 | |
|      *                                 deprecated.
 | |
|      * @param int $mode a valid tableInfo mode
 | |
|      *
 | |
|      * @return array|object
 | |
|      *                 A DB_Error object on failure.
 | |
|      *
 | |
|      * @see DB_common::tableInfo()
 | |
|      * @since Method available since Release 1.7.0
 | |
|      */
 | |
|     public function tableInfo($result, $mode = null)
 | |
|     {
 | |
|         if (is_string($result)) {
 | |
|             /*
 | |
|              * Probably received a table name.
 | |
|              * Create a result resource identifier.
 | |
|              */
 | |
|             $id = @odbc_exec($this->connection, "SELECT * FROM $result");
 | |
|             if (!$id) {
 | |
|                 return $this->odbcRaiseError();
 | |
|             }
 | |
|             $got_string = true;
 | |
|         } elseif (isset($result->result)) {
 | |
|             /*
 | |
|              * Probably received a result object.
 | |
|              * Extract the result resource identifier.
 | |
|              */
 | |
|             $id = $result->result;
 | |
|             $got_string = false;
 | |
|         } else {
 | |
|             /*
 | |
|              * Probably received a result resource identifier.
 | |
|              * Copy it.
 | |
|              * Deprecated.  Here for compatibility only.
 | |
|              */
 | |
|             $id = $result;
 | |
|             $got_string = false;
 | |
|         }
 | |
| 
 | |
|         if (!is_resource($id)) {
 | |
|             return $this->odbcRaiseError(DB_ERROR_NEED_MORE_DATA);
 | |
|         }
 | |
| 
 | |
|         if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
 | |
|             $case_func = 'strtolower';
 | |
|         } else {
 | |
|             $case_func = 'strval';
 | |
|         }
 | |
| 
 | |
|         $count = @odbc_num_fields($id);
 | |
|         $res = array();
 | |
| 
 | |
|         if ($mode) {
 | |
|             $res['num_fields'] = $count;
 | |
|         }
 | |
| 
 | |
|         for ($i = 0; $i < $count; $i++) {
 | |
|             $col = $i + 1;
 | |
|             $res[$i] = array(
 | |
|                 'table' => $got_string ? $case_func($result) : '',
 | |
|                 'name' => $case_func(@odbc_field_name($id, $col)),
 | |
|                 'type' => @odbc_field_type($id, $col),
 | |
|                 'len' => @odbc_field_len($id, $col),
 | |
|                 'flags' => '',
 | |
|             );
 | |
|             if ($mode & DB_TABLEINFO_ORDER) {
 | |
|                 $res['order'][$res[$i]['name']] = $i;
 | |
|             }
 | |
|             if ($mode & DB_TABLEINFO_ORDERTABLE) {
 | |
|                 $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         // free the result only if we were called on a table
 | |
|         if ($got_string) {
 | |
|             @odbc_free_result($id);
 | |
|         }
 | |
|         return $res;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
|     // {{{ getSpecialQuery()
 | |
| 
 | |
|     /**
 | |
|      * Obtains the query string needed for listing a given type of objects
 | |
|      *
 | |
|      * Thanks to symbol1@gmail.com and Philippe.Jausions@11abacus.com.
 | |
|      *
 | |
|      * @param string $type the kind of objects you want to retrieve
 | |
|      *
 | |
|      * @return array|string
 | |
|      *
 | |
|      * @access protected
 | |
|      * @see DB_common::getListOf()
 | |
|      * @since Method available since Release 1.7.0
 | |
|      */
 | |
|     public function getSpecialQuery($type)
 | |
|     {
 | |
|         switch ($type) {
 | |
|             case 'databases':
 | |
|                 if (!function_exists('odbc_data_source')) {
 | |
|                     return null;
 | |
|                 }
 | |
|                 $res = @odbc_data_source($this->connection, SQL_FETCH_FIRST);
 | |
|                 if (is_array($res)) {
 | |
|                     $out = array($res['server']);
 | |
|                     while ($res = @odbc_data_source(
 | |
|                         $this->connection,
 | |
|                         SQL_FETCH_NEXT
 | |
|                     )) {
 | |
|                         $out[] = $res['server'];
 | |
|                     }
 | |
|                     return $out;
 | |
|                 } else {
 | |
|                     return $this->odbcRaiseError();
 | |
|                 }
 | |
|                 break;
 | |
|             case 'tables':
 | |
|             case 'schema.tables':
 | |
|                 $keep = 'TABLE';
 | |
|                 break;
 | |
|             case 'views':
 | |
|                 $keep = 'VIEW';
 | |
|                 break;
 | |
|             default:
 | |
|                 return null;
 | |
|         }
 | |
| 
 | |
|         /*
 | |
|          * Removing non-conforming items in the while loop rather than
 | |
|          * in the odbc_tables() call because some backends choke on this:
 | |
|          *     odbc_tables($this->connection, '', '', '', 'TABLE')
 | |
|          */
 | |
|         $res = @odbc_tables($this->connection);
 | |
|         if (!$res) {
 | |
|             return $this->odbcRaiseError();
 | |
|         }
 | |
|         $out = array();
 | |
|         while ($row = odbc_fetch_array($res)) {
 | |
|             if ($row['TABLE_TYPE'] != $keep) {
 | |
|                 continue;
 | |
|             }
 | |
|             if ($type == 'schema.tables') {
 | |
|                 $out[] = $row['TABLE_SCHEM'] . '.' . $row['TABLE_NAME'];
 | |
|             } else {
 | |
|                 $out[] = $row['TABLE_NAME'];
 | |
|             }
 | |
|         }
 | |
|         return $out;
 | |
|     }
 | |
| 
 | |
|     // }}}
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Local variables:
 | |
|  * tab-width: 4
 | |
|  * c-basic-offset: 4
 | |
|  * End:
 | |
|  */
 |