mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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368 lines
No EOL
9.3 KiB
PHP
368 lines
No EOL
9.3 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* ODBC for DBO
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*
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* Long description for file
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*
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* PHP versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://www.cakephp.org)
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* Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs.model.dbo
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* @since CakePHP(tm) v 0.10.5.1790
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Short description for class.
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*
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* Long description for class
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*
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* @package cake
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* @subpackage cake.cake.libs.model.datasources.dbo
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*/
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class DboOdbc extends DboSource {
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/**
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* Driver description
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*
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* @var string
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*/
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var $description = "ODBC DBO Driver";
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/**
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* Table/column starting quote
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*
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* @var string
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*/
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var $startQuote = "`";
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/**
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* Table/column end quote
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*
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* @var string
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*/
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var $endQuote = "`";
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/**
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* Driver base configuration
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*
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* @var array
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*/
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var $_baseConfig = array(
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'persistent' => true,
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'login' => 'root',
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'password' => '',
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'database' => 'cake',
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'connect' => 'odbc_pconnect'
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);
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/**
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* Enter description here...
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*
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* @var unknown_type
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*/
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var $columns = array();
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// var $columns = array('primary_key' => array('name' => 'int(11) DEFAULT NULL auto_increment'),
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// 'string' => array('name' => 'varchar', 'limit' => '255'),
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// 'text' => array('name' => 'text'),
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// 'integer' => array('name' => 'int', 'limit' => '11'),
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// 'float' => array('name' => 'float'),
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// 'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d h:i:s', 'formatter' => 'date'),
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// 'timestamp' => array('name' => 'datetime', 'format' => 'Y-m-d h:i:s', 'formatter' => 'date'),
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// 'time' => array('name' => 'time', 'format' => 'h:i:s', 'formatter' => 'date'),
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// 'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
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// 'binary' => array('name' => 'blob'),
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// 'boolean' => array('name' => 'tinyint', 'limit' => '1'));
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/**
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* Connects to the database using options in the given configuration array.
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*
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* @return boolean True if the database could be connected, else false
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*/
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function connect() {
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$config = $this->config;
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$connect = $config['connect'];
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if (!$config['persistent']) {
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$connect = 'odbc_connect';
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}
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if (!function_exists($connect)) {
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exit('no odbc?');
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}
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$this->connected = false;
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$this->connection = $connect($config['database'], $config['login'], $config['password'], SQL_CUR_USE_ODBC);
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if ($this->connection) {
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$this->connected = true;
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}
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return $this->connected;
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}
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/**
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* Check if the ODBC extension is installed/loaded
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*
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* @return boolean
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**/
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function enabled() {
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return extension_loaded('odbc');
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}
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/**
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* Disconnects from database.
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*
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* @return boolean True if the database could be disconnected, else false
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*/
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function disconnect() {
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return @odbc_close($this->connection);
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}
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/**
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* Executes given SQL statement.
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*
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* @param string $sql SQL statement
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* @return resource Result resource identifier
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* @access protected
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*/
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function _execute($sql) {
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switch ($sql) {
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case 'BEGIN':
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return odbc_autocommit($this->connection, false);
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case 'COMMIT':
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return odbc_commit($this->connection);
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case 'ROLLBACK':
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return odbc_rollback($this->connection);
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}
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// TODO: should flags be set? possible requirement: SQL_CURSOR_STATIC
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return odbc_exec($this->connection, $sql);
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}
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/**
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* Returns an array of sources (tables) in the database.
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*
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* @return array Array of tablenames in the database
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*/
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function listSources() {
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$cache = parent::listSources();
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if ($cache != null) {
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return $cache;
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}
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$result = odbc_tables($this->connection);
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$tables = array();
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while (odbc_fetch_row($result)) {
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array_push($tables, odbc_result($result, 'TABLE_NAME'));
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}
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parent::listSources($tables);
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return $tables;
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}
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/**
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* Returns an array of the fields in given table name.
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*
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* @param Model $model Model object to describe
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* @return array Fields in table. Keys are name and type
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*/
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function &describe(&$model) {
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$cache=parent::describe($model);
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if ($cache != null) {
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return $cache;
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}
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$fields = array();
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$sql = 'SELECT * FROM ' . $this->fullTableName($model);
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$result = odbc_exec($this->connection, $sql);
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$count = odbc_num_fields($result);
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for ($i = 1; $i <= $count; $i++) {
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$cols[$i - 1] = odbc_field_name($result, $i);
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}
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foreach ($cols as $column) {
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$type = odbc_field_type(odbc_exec($this->connection, 'SELECT ' . $column . ' FROM ' . $this->fullTableName($model)), 1);
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$fields[$column] = array('type' => $type);
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}
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$this->__cacheDescription($model->tablePrefix . $model->table, $fields);
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return $fields;
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}
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/**
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* Returns a quoted and escaped string of $data for use in an SQL statement.
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*
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* @param string $data String to be prepared for use in an SQL statement
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* @param string $column The column into which this data will be inserted
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* @return string Quoted and escaped
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* @todo Add logic that formats/escapes data based on column type
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*/
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function value($data, $column = null) {
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$parent=parent::value($data, $column);
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if ($parent != null) {
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return $parent;
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}
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if ($data === null) {
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return 'NULL';
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}
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if (!is_numeric($data)) {
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return "'" . $data . "'";
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}
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return $data;
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}
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/**
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* Returns a formatted error message from previous database operation.
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*
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* @return string Error message with error number
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*/
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function lastError() {
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if ($error = odbc_errormsg($this->connection)) {
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return odbc_error($this->connection) . ': ' . $error;
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}
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return null;
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}
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/**
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* Returns number of affected rows in previous database operation. If no previous operation exists,
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* this returns false.
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*
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* @return integer Number of affected rows
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*/
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function lastAffected() {
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if ($this->hasResult()) {
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return odbc_num_rows($this->_result);
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}
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return null;
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}
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/**
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* Returns number of rows in previous resultset. If no previous resultset exists,
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* this returns false.
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*
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* @return int Number of rows in resultset
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*/
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function lastNumRows() {
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if ($this->hasResult()) {
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return odbc_num_rows($this->_result);
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}
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return null;
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}
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/**
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* Returns the ID generated from the previous INSERT operation.
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*
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* @param unknown_type $source
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* @return int
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*/
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function lastInsertId($source = null) {
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$result = $this->fetchRow('SELECT @@IDENTITY');
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return $result[0];
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}
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/**
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* Enter description here...
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*
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* @param string $real Real database-layer column type (i.e. "varchar(255)")
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*/
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function column($real) {
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if (is_array($real)) {
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$col=$real['name'];
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if (isset($real['limit'])) {
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$col .= '(' . $real['limit'] . ')';
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}
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return $col;
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}
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return $real;
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}
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/**
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* Enter description here...
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*
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* @param unknown_type $results
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*/
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function resultSet(&$results) {
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$this->results =& $results;
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$num_fields = odbc_num_fields($results);
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$this->map = array();
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$index = 0;
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$j = 0;
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while ($j < $num_fields) {
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$column = odbc_field_name($results, $j+1);
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if (strpos($column, '_dot_') !== false) {
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list($table, $column) = explode('_dot_', $column);
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$this->map[$index++] = array($table, $column);
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} else {
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$this->map[$index++] = array(0, $column);
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}
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$j++;
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}
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}
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/**
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* Generates the fields list of an SQL query.
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*
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* @param Model $model
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* @param string $alias Alias tablename
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* @param mixed $fields
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* @return array
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*/
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function fields(&$model, $alias = null, $fields = null, $quote = true) {
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if (empty($alias)) {
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$alias = $model->name;
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}
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if (!is_array($fields)) {
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if ($fields != null) {
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$fields = array_map('trim', explode(',', $fields));
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} else {
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foreach($model->tableToModel as $tableName => $modelName) {
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foreach($this->__descriptions[$model->tablePrefix .$tableName] as $field => $type) {
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$fields[] = $modelName .'.' .$field;
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}
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}
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}
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}
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$count = count($fields);
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if ($count >= 1 && $fields[0] != '*' && strpos($fields[0], 'COUNT(*)') === false) {
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for ($i = 0; $i < $count; $i++) {
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if (!preg_match('/^.+\\(.*\\)/', $fields[$i])) {
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$prepend = '';
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if (strpos($fields[$i], 'DISTINCT') !== false) {
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$prepend = 'DISTINCT ';
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$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
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}
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if (strrpos($fields[$i], '.') === false) {
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$fields[$i] = $prepend . $this->name($alias) . '.' . $this->name($fields[$i]) . ' AS ' . $this->name($alias . '_dot_' . $fields[$i]);
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} else {
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$build = explode('.', $fields[$i]);
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$fields[$i] = $prepend . $this->name($build[0]) . '.' . $this->name($build[1]) . ' AS ' . $this->name($build[0] . '_dot_' . $build[1]);
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}
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}
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}
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}
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return $fields;
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}
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/**
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* Fetches the next row from the current result set
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*
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* @return unknown
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*/
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function fetchResult() {
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if ($row = odbc_fetch_row($this->results)) {
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$resultRow = array();
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$numFields = odbc_num_fields($this->results);
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$i = 0;
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for($i = 0; $i < $numFields; $i++) {
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list($table, $column) = $this->map[$i];
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$resultRow[$table][$column] = odbc_result($this->results, $i + 1);
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}
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return $resultRow;
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}
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return false;
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}
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}
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?>
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