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https://github.com/kamilwylegala/cakephp2-php8.git
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8a2b51c3ec
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@6128 3807eeeb-6ff5-0310-8944-8be069107fe0
483 lines
No EOL
11 KiB
PHP
483 lines
No EOL
11 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* DataSource base class
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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 2005-2007, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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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 2005-2007, Cake Software Foundation, Inc.
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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.datasources
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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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* DataSource base class
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*
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* Long description for file
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*
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* @package cake
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* @subpackage cake.cake.libs.model.datasources
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*/
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class DataSource extends Object {
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/**
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* Are we connected to the DataSource?
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*
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* @var boolean
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* @access public
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*/
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var $connected = false;
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/**
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* Print full query debug info?
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*
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* @var boolean
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* @access public
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*/
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var $fullDebug = false;
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/**
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* Error description of last query
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*
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* @var unknown_type
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* @access public
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*/
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var $error = null;
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/**
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* String to hold how many rows were affected by the last SQL operation.
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*
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* @var string
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* @access public
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*/
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var $affected = null;
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/**
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* Number of rows in current resultset
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*
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* @var int
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* @access public
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*/
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var $numRows = null;
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/**
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* Time the last query took
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*
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* @var int
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* @access public
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*/
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var $took = null;
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/**
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* Enter description here...
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*
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* @var array
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* @access private
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*/
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var $_result = null;
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/**
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* Queries count.
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*
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* @var int
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* @access private
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*/
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var $_queriesCnt = 0;
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/**
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* Total duration of all queries.
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*
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* @var unknown_type
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* @access private
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*/
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var $_queriesTime = null;
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/**
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* Log of queries executed by this DataSource
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*
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* @var unknown_type
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* @access private
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*/
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var $_queriesLog = array();
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/**
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* Maximum number of items in query log, to prevent query log taking over
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* too much memory on large amounts of queries -- I we've had problems at
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* >6000 queries on one system.
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*
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* @var int Maximum number of queries in the queries log.
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* @access private
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*/
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var $_queriesLogMax = 200;
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/**
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* Caches serialzed results of executed queries
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*
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* @var array Maximum number of queries in the queries log.
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* @access private
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*/
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var $_queryCache = array();
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/**
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* The default configuration of a specific DataSource
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*
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* @var array
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* @access public
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*/
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var $_baseConfig = array();
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/**
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* Holds references to descriptions loaded by the DataSource
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*
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* @var array
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* @access private
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*/
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var $__descriptions = array();
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/**
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* Holds a list of sources (tables) contained in the DataSource
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*
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* @var array
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* @access protected
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*/
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var $_sources = null;
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/**
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* A reference to the physical connection of this DataSource
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*
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* @var array
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* @access public
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*/
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var $connection = null;
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/**
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* The DataSource configuration
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*
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* @var array
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* @access public
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*/
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var $config = array();
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/**
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* The DataSource configuration key name
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*
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* @var string
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* @access public
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*/
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var $configKeyName = null;
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/**
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* Whether or not this DataSource is in the middle of a transaction
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*
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* @var boolean
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* @access protected
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*/
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var $_transactionStarted = false;
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/**
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* Enter description here...
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*
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* @var boolean
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*/
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var $cacheSources = true;
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/**
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* Constructor.
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*/
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function __construct() {
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parent::__construct();
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if (func_num_args() > 0) {
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$this->setConfig(func_get_arg(0));
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}
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}
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/**
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* Caches/returns cached results for child instances
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*
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* @return array
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*/
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function listSources($data = null) {
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if ($this->cacheSources === false) {
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return null;
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}
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if ($this->_sources != null) {
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return $this->_sources;
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}
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if (Configure::read() > 0) {
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$expires = "+30 seconds";
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} else {
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$expires = "+999 days";
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}
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if ($data != null) {
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$data = serialize($data);
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}
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$filename = ConnectionManager::getSourceName($this) . '_' . preg_replace("/[^A-Za-z0-9_-]/", "_", $this->config['database']) . '_list';
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$new = cache('models' . DS . $filename, $data, $expires);
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if ($new != null) {
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$new = unserialize($new);
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$this->_sources = $new;
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}
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return $new;
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}
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/**
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* Convenience method for DboSource::listSources(). Returns source names in lowercase.
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*
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* @return array
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*/
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function sources() {
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$return = array_map('strtolower', $this->listSources());
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return $return;
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}
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/**
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* Returns a Model description (metadata) or null if none found.
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*
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* @param Model $model
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* @return mixed
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*/
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function describe($model) {
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if ($this->cacheSources === false) {
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return null;
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}
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if (isset($this->__descriptions[$model->tablePrefix . $model->table])) {
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return $this->__descriptions[$model->tablePrefix . $model->table];
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}
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$cache = $this->__cacheDescription($model->tablePrefix . $model->table);
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if ($cache !== null) {
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$this->__descriptions[$model->tablePrefix . $model->table] =& $cache;
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return $cache;
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}
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return null;
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}
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/**
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* Converts column types to basic types
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*
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* @param string $real Real column type (i.e. "varchar(255)")
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* @return string Abstract column type (i.e. "string")
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*/
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function column($real) {
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return false;
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}
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/**
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* To-be-overridden in subclasses.
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*
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* @param unknown_type $model
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* @param unknown_type $fields
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* @param unknown_type $values
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* @return unknown
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*/
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function create(&$model, $fields = null, $values = null) {
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return false;
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}
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/**
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* To-be-overridden in subclasses.
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*
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* @param unknown_type $model
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* @param unknown_type $queryData
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* @return unknown
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*/
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function read(&$model, $queryData = array()) {
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return false;
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}
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/**
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* To-be-overridden in subclasses.
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*
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* @param unknown_type $model
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* @param unknown_type $fields
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* @param unknown_type $values
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* @return unknown
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*/
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function update(&$model, $fields = null, $values = null) {
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return false;
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}
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/**
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* To-be-overridden in subclasses.
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*
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* @param unknown_type $model
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* @param unknown_type $id
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*/
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function delete(&$model, $id = null) {
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if ($id == null) {
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$id = $model->id;
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}
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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 $source
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* @return in
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*/
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function lastInsertId($source = null) {
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return false;
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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 $source
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* @return in
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*/
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function lastNumRows($source = null) {
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return false;
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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 $source
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* @return in
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*/
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function lastAffected($source = null) {
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return false;
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}
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/**
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* Returns true if the DataSource supports the given interface (method)
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*
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* @param string $interface The name of the interface (method)
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* @return boolean True on success
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*/
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function isInterfaceSupported($interface) {
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$methods = get_class_methods(get_class($this));
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$methods = strtolower(implode('|', $methods));
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$methods = explode('|', $methods);
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$return = in_array(strtolower($interface), $methods);
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return $return;
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}
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/**
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* Sets the configuration for the DataSource
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*
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* @param array $config The configuration array
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*/
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function setConfig($config) {
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if (is_array($this->_baseConfig)) {
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$this->config = $this->_baseConfig;
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foreach ($config as $key => $val) {
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$this->config[$key] = $val;
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}
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}
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}
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/**
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* Cache the DataSource description
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*
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* @param string $object The name of the object (model) to cache
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* @param mixed $data The description of the model, usually a string or array
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*/
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function __cacheDescription($object, $data = null) {
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if ($this->cacheSources === false) {
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return null;
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}
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if (Configure::read() > 0) {
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$expires = "+15 seconds";
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} else {
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$expires = "+999 days";
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}
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if ($data !== null) {
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$this->__descriptions[$object] =& $data;
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$cache = serialize($data);
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} else {
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$cache = null;
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}
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$new = cache('models' . DS . ConnectionManager::getSourceName($this) . '_' . $object, $cache, $expires);
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if ($new != null) {
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$new = unserialize($new);
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}
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return $new;
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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 $query
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* @param unknown_type $data
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* @param unknown_type $association
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* @param unknown_type $assocData
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* @param Model $model
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* @param Model $linkModel
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* @param array $stack
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* @return unknown
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*/
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function insertQueryData($query, $data, $association, $assocData, &$model, &$linkModel, $stack) {
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$keys = array('{$__cakeID__$}', '{$__cakeForeignKey__$}');
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foreach ($keys as $key) {
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$val = null;
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if (strpos($query, $key) !== false) {
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switch($key) {
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case '{$__cakeID__$}':
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if (isset($data[$model->alias]) || isset($data[$association])) {
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if (isset($data[$model->alias][$model->primaryKey])) {
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$val = $data[$model->alias][$model->primaryKey];
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} elseif (isset($data[$association][$model->primaryKey])) {
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$val = $data[$association][$model->primaryKey];
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}
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} else {
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$found = false;
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foreach (array_reverse($stack) as $assoc) {
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if (isset($data[$assoc]) && isset($data[$assoc][$model->primaryKey])) {
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$val = $data[$assoc][$model->primaryKey];
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$found = true;
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break;
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}
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}
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if (!$found) {
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$val = '';
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}
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}
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break;
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case '{$__cakeForeignKey__$}':
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foreach ($model->__associations as $id => $name) {
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foreach ($model->$name as $assocName => $assoc) {
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if ($assocName === $association) {
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if (isset($assoc['foreignKey'])) {
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$foreignKey = $assoc['foreignKey'];
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if (isset($data[$model->alias][$foreignKey])) {
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$val = $data[$model->alias][$foreignKey];
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} elseif (isset($data[$association][$foreignKey])) {
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$val = $data[$association][$foreignKey];
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} else {
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$found = false;
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foreach (array_reverse($stack) as $assoc) {
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if (isset($data[$assoc]) && isset($data[$assoc][$foreignKey])) {
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$val = $data[$assoc][$foreignKey];
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$found = true;
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break;
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}
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}
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if (!$found) {
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$val = '';
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}
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}
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}
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break 3;
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}
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}
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}
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break;
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}
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if (empty($val) && $val !== '0') {
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return false;
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}
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$query = str_replace($key, $this->value($val, $model->getColumnType($model->primaryKey)), $query);
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}
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}
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return $query;
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}
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/**
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* To-be-overridden in subclasses.
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*
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* @param unknown_type $model
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* @param unknown_type $key
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* @return unknown
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*/
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function resolveKey($model, $key) {
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return $model->alias . $key;
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}
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/**
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* Closes the current datasource.
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*
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*/
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function __destruct() {
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if ($this->connected) {
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$this->close();
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}
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}
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}
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?>
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