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2292 lines
80 KiB
2292 lines
80 KiB
<?php |
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/** |
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* ActiveRecord class file. |
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* |
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* @author Qiang Xue <qiang.xue@gmail.com> |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright © 2008-2011 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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|
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namespace yii\db\ar; |
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|
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/* |
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1. query |
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$finder = Post::model()->find(array( |
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'select' => 'id, title', |
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'where' => 'id=123', |
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'with' => array( |
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'creator' => array( |
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), |
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), |
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)); |
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$post = $finder->first(); |
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$posts = $finder->all(); |
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foreach($finder as $post) { |
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} |
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foreach($finder->next(5) as $posts) { |
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} |
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2. insert |
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$post = Post::create(); |
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$post->attributes = $_POST['Post']; |
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$post->save(); |
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3. update |
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4. delete |
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*/ |
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/** |
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* ActiveRecord is the base class for classes representing relational data. |
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* |
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* It implements the active record design pattern, a popular Object-Relational Mapping (ORM) technique. |
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* Please check {@link http://www.yiiframework.com/doc/guide/database.ar the Guide} for more details |
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* about this class. |
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* |
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* @author Qiang Xue <qiang.xue@gmail.com> |
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* @since 2.0 |
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* |
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* @property array $attributes |
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*/ |
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abstract class ActiveRecord extends \yii\base\Model |
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{ |
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const BELONGS_TO = 'CBelongsToRelation'; |
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const HAS_ONE = 'CHasOneRelation'; |
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const HAS_MANY = 'CHasManyRelation'; |
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const MANY_MANY = 'CManyManyRelation'; |
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/** |
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* @var CDbConnection the default database connection for all active record classes. |
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* By default, this is the 'db' application component. |
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* @see getDbConnection |
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*/ |
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public static $db; |
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private static $_models = array(); // class name => model |
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private $_md; // meta data |
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private $_new = false; // whether this instance is new or not |
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private $_attributes = array(); // attribute name => attribute value |
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private $_related = array(); // attribute name => related objects |
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private $_c; // query criteria (used by finder only) |
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private $_pk; // old primary key value |
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private $_alias = 't'; // the table alias being used for query |
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/** |
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* Constructor. |
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* @param string $scenario scenario name. See {@link CModel::scenario} for more details about this parameter. |
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*/ |
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public function __construct($scenario = 'insert') |
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{ |
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if ($scenario === null) // internally used by populateRecord() and model() |
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return; |
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$this->setScenario($scenario); |
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$this->setIsNewRecord(true); |
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$this->_attributes = $this->getMetaData()->attributeDefaults; |
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$this->init(); |
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$this->attachBehaviors($this->behaviors()); |
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$this->afterConstruct(); |
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} |
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/** |
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* Sets the parameters about query caching. |
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* This is a shortcut method to {@link CDbConnection::cache()}. |
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* It changes the query caching parameter of the {@link dbConnection} instance. |
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* @param integer $duration the number of seconds that query results may remain valid in cache. |
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* If this is 0, the caching will be disabled. |
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* @param CCacheDependency $dependency the dependency that will be used when saving the query results into cache. |
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* @param integer $queryCount number of SQL queries that need to be cached after calling this method. Defaults to 1, |
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* meaning that the next SQL query will be cached. |
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* @return ActiveRecord the active record instance itself. |
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*/ |
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public function cache($duration, $dependency = null, $queryCount = 1) |
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{ |
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$this->getDbConnection()->cache($duration, $dependency, $queryCount); |
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return $this; |
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} |
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|
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/** |
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* PHP sleep magic method. |
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* This method ensures that the model meta data reference is set to null. |
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* @return array |
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*/ |
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public function __sleep() |
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{ |
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$this->_md = null; |
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return array_keys((array)$this); |
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} |
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/** |
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* PHP getter magic method. |
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* This method is overridden so that AR attributes can be accessed like properties. |
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* @param string $name property name |
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* @return mixed property value |
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* @see getAttribute |
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*/ |
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public function __get($name) |
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{ |
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if (isset($this->_attributes[$name])) |
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return $this->_attributes[$name]; |
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elseif (isset($this->getMetaData()->columns[$name])) |
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return null; |
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elseif (isset($this->_related[$name])) |
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return $this->_related[$name]; |
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elseif (isset($this->getMetaData()->relations[$name])) |
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return $this->getRelated($name); |
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else |
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return parent::__get($name); |
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} |
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/** |
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* PHP setter magic method. |
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* This method is overridden so that AR attributes can be accessed like properties. |
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* @param string $name property name |
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* @param mixed $value property value |
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*/ |
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public function __set($name, $value) |
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{ |
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if ($this->setAttribute($name, $value) === false) |
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{ |
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if (isset($this->getMetaData()->relations[$name])) |
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$this->_related[$name] = $value; |
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else |
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parent::__set($name, $value); |
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} |
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} |
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/** |
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* Checks if a property value is null. |
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* This method overrides the parent implementation by checking |
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* if the named attribute is null or not. |
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* @param string $name the property name or the event name |
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* @return boolean whether the property value is null |
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*/ |
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public function __isset($name) |
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{ |
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if (isset($this->_attributes[$name])) |
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return true; |
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elseif (isset($this->getMetaData()->columns[$name])) |
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return false; |
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elseif (isset($this->_related[$name])) |
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return true; |
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elseif (isset($this->getMetaData()->relations[$name])) |
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return $this->getRelated($name) !== null; |
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else |
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return parent::__isset($name); |
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} |
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/** |
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* Sets a component property to be null. |
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* This method overrides the parent implementation by clearing |
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* the specified attribute value. |
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* @param string $name the property name or the event name |
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*/ |
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public function __unset($name) |
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{ |
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if (isset($this->getMetaData()->columns[$name])) |
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unset($this->_attributes[$name]); |
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elseif (isset($this->getMetaData()->relations[$name])) |
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unset($this->_related[$name]); |
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else |
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parent::__unset($name); |
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} |
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/** |
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* Calls the named method which is not a class method. |
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* Do not call this method. This is a PHP magic method that we override |
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* to implement the named scope feature. |
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* @param string $name the method name |
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* @param array $parameters method parameters |
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* @return mixed the method return value |
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*/ |
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public function __call($name, $parameters) |
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{ |
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if (isset($this->getMetaData()->relations[$name])) |
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{ |
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if (empty($parameters)) |
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return $this->getRelated($name, false); |
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else |
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return $this->getRelated($name, false, $parameters[0]); |
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} |
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$scopes = $this->scopes(); |
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if (isset($scopes[$name])) |
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{ |
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$this->getDbCriteria()->mergeWith($scopes[$name]); |
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return $this; |
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} |
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return parent::__call($name, $parameters); |
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} |
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/** |
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* Returns the related record(s). |
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* This method will return the related record(s) of the current record. |
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* If the relation is HAS_ONE or BELONGS_TO, it will return a single object |
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* or null if the object does not exist. |
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* If the relation is HAS_MANY or MANY_MANY, it will return an array of objects |
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* or an empty array. |
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* @param string $name the relation name (see {@link relations}) |
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* @param boolean $refresh whether to reload the related objects from database. Defaults to false. |
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* @param array $params additional parameters that customize the query conditions as specified in the relation declaration. |
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* This parameter has been available since version 1.0.5. |
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* @return mixed the related object(s). |
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* @throws CDbException if the relation is not specified in {@link relations}. |
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*/ |
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public function getRelated($name, $refresh = false, $params = array()) |
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{ |
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if (!$refresh && $params === array() && (isset($this->_related[$name]) || array_key_exists($name, $this->_related))) |
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return $this->_related[$name]; |
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$md = $this->getMetaData(); |
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if (!isset($md->relations[$name])) |
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throw new CDbException(Yii::t('yii', '{class} does not have relation "{name}".', |
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array('{class}' => get_class($this), '{name}' => $name))); |
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Yii::trace('lazy loading ' . get_class($this) . '.' . $name, 'system.db.ar.ActiveRecord'); |
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$relation = $md->relations[$name]; |
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if ($this->getIsNewRecord() && !$refresh && ($relation instanceof CHasOneRelation || $relation instanceof CHasManyRelation)) |
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return $relation instanceof CHasOneRelation ? null : array(); |
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if ($params !== array()) // dynamic query |
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{ |
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$exists = isset($this->_related[$name]) || array_key_exists($name, $this->_related); |
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if ($exists) |
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$save = $this->_related[$name]; |
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$r = array($name => $params); |
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} else |
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$r = $name; |
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unset($this->_related[$name]); |
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$finder = new CActiveFinder($this, $r); |
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$finder->lazyFind($this); |
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if (!isset($this->_related[$name])) |
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{ |
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if ($relation instanceof CHasManyRelation) |
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$this->_related[$name] = array(); |
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elseif ($relation instanceof CStatRelation) |
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$this->_related[$name] = $relation->defaultValue; |
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else |
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$this->_related[$name] = null; |
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} |
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if ($params !== array()) |
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{ |
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$results = $this->_related[$name]; |
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if ($exists) |
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$this->_related[$name] = $save; |
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else |
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unset($this->_related[$name]); |
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return $results; |
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} else |
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return $this->_related[$name]; |
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} |
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/** |
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* Returns a value indicating whether the named related object(s) has been loaded. |
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* @param string $name the relation name |
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* @return boolean a value indicating whether the named related object(s) has been loaded. |
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*/ |
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public function hasRelated($name) |
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{ |
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return isset($this->_related[$name]) || array_key_exists($name, $this->_related); |
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} |
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/** |
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* Returns the query criteria associated with this model. |
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* @param boolean $createIfNull whether to create a criteria instance if it does not exist. Defaults to true. |
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* @return CDbCriteria the query criteria that is associated with this model. |
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* This criteria is mainly used by {@link scopes named scope} feature to accumulate |
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* different criteria specifications. |
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*/ |
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public function getDbCriteria($createIfNull = true) |
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{ |
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if ($this->_c === null) |
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{ |
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if (($c = $this->defaultScope()) !== array() || $createIfNull) |
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$this->_c = new CDbCriteria($c); |
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} |
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return $this->_c; |
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} |
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/** |
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* Sets the query criteria for the current model. |
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* @param CDbCriteria $criteria the query criteria |
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*/ |
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public function setDbCriteria($criteria) |
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{ |
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$this->_c = $criteria; |
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} |
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/** |
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* Returns the default named scope that should be implicitly applied to all queries for this model. |
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* Note, default scope only applies to SELECT queries. It is ignored for INSERT, UPDATE and DELETE queries. |
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* The default implementation simply returns an empty array. You may override this method |
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* if the model needs to be queried with some default criteria (e.g. only active records should be returned). |
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* @return array the query criteria. This will be used as the parameter to the constructor |
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* of {@link CDbCriteria}. |
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*/ |
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public function defaultScope() |
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{ |
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return array(); |
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} |
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/** |
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* Resets all scopes and criterias applied including default scope. |
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* |
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* @return ActiveRecord |
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*/ |
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public function resetScope() |
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{ |
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$this->_c = new CDbCriteria(); |
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return $this; |
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} |
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|
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/** |
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* Returns the static model of the specified AR class. |
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* The model returned is a static instance of the AR class. |
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* It is provided for invoking class-level methods (something similar to static class methods.) |
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* |
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* EVERY derived AR class must override this method as follows, |
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* <pre> |
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* public static function model($className=__CLASS__) |
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* { |
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* return parent::model($className); |
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* } |
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* </pre> |
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* |
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* @param string $className active record class name. |
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* @return ActiveRecord active record model instance. |
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*/ |
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public static function model($className = __CLASS__) |
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{ |
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if (isset(self::$_models[$className])) |
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return self::$_models[$className]; |
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else |
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{ |
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$model = self::$_models[$className] = new $className(null); |
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$model->_md = new ActiveRecordMetaData($model); |
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$model->attachBehaviors($model->behaviors()); |
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return $model; |
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} |
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} |
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|
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/** |
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* Returns the meta-data for this AR |
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* @return ActiveRecordMetaData the meta for this AR class. |
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*/ |
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public function getMetaData() |
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{ |
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if ($this->_md !== null) |
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return $this->_md; |
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else |
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return $this->_md = self::model(get_class($this))->_md; |
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} |
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|
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/** |
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* Refreshes the meta data for this AR class. |
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* By calling this method, this AR class will regenerate the meta data needed. |
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* This is useful if the table schema has been changed and you want to use the latest |
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* available table schema. Make sure you have called {@link CDbSchema::refresh} |
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* before you call this method. Otherwise, old table schema data will still be used. |
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*/ |
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public function refreshMetaData() |
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{ |
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$finder = self::model(get_class($this)); |
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$finder->_md = new ActiveRecordMetaData($finder); |
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if ($this !== $finder) |
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$this->_md = $finder->_md; |
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} |
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|
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/** |
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* Returns the name of the associated database table. |
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* By default this method returns the class name as the table name. |
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* You may override this method if the table is not named after this convention. |
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* @return string the table name |
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*/ |
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public function tableName() |
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{ |
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return get_class($this); |
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} |
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|
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/** |
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* Returns the primary key of the associated database table. |
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* This method is meant to be overridden in case when the table is not defined with a primary key |
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* (for some legency database). If the table is already defined with a primary key, |
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* you do not need to override this method. The default implementation simply returns null, |
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* meaning using the primary key defined in the database. |
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* @return mixed the primary key of the associated database table. |
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* If the key is a single column, it should return the column name; |
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* If the key is a composite one consisting of several columns, it should |
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* return the array of the key column names. |
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*/ |
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public function primaryKey() |
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{ |
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} |
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|
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/** |
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* This method should be overridden to declare related objects. |
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* |
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* There are four types of relations that may exist between two active record objects: |
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* <ul> |
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* <li>BELONGS_TO: e.g. a member belongs to a team;</li> |
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* <li>HAS_ONE: e.g. a member has at most one profile;</li> |
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* <li>HAS_MANY: e.g. a team has many members;</li> |
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* <li>MANY_MANY: e.g. a member has many skills and a skill belongs to a member.</li> |
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* </ul> |
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* |
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* Besides the above relation types, a special relation called STAT is also supported |
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* that can be used to perform statistical query (or aggregational query). |
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* It retrieves the aggregational information about the related objects, such as the number |
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* of comments for each post, the average rating for each product, etc. |
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* |
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* Each kind of related objects is defined in this method as an array with the following elements: |
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* <pre> |
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* 'varName'=>array('relationType', 'className', 'foreign_key', ...additional options) |
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* </pre> |
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* where 'varName' refers to the name of the variable/property that the related object(s) can |
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* be accessed through; 'relationType' refers to the type of the relation, which can be one of the |
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* following four constants: self::BELONGS_TO, self::HAS_ONE, self::HAS_MANY and self::MANY_MANY; |
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* 'className' refers to the name of the active record class that the related object(s) is of; |
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* and 'foreign_key' states the foreign key that relates the two kinds of active record. |
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* Note, for composite foreign keys, they must be listed together, separated by commas; |
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* and for foreign keys used in MANY_MANY relation, the joining table must be declared as well |
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* (e.g. 'join_table(fk1, fk2)'). |
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* |
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* Additional options may be specified as name-value pairs in the rest array elements: |
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* <ul> |
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* <li>'select': string|array, a list of columns to be selected. Defaults to '*', meaning all columns. |
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* Column names should be disambiguated if they appear in an expression (e.g. COUNT(relationName.name) AS name_count).</li> |
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* <li>'condition': string, the WHERE clause. Defaults to empty. Note, column references need to |
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* be disambiguated with prefix 'relationName.' (e.g. relationName.age>20)</li> |
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* <li>'order': string, the ORDER BY clause. Defaults to empty. Note, column references need to |
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* be disambiguated with prefix 'relationName.' (e.g. relationName.age DESC)</li> |
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* <li>'with': string|array, a list of child related objects that should be loaded together with this object. |
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* Note, this is only honored by lazy loading, not eager loading.</li> |
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* <li>'joinType': type of join. Defaults to 'LEFT OUTER JOIN'.</li> |
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* <li>'alias': the alias for the table associated with this relationship. |
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* This option has been available since version 1.0.1. It defaults to null, |
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* meaning the table alias is the same as the relation name.</li> |
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* <li>'params': the parameters to be bound to the generated SQL statement. |
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* This should be given as an array of name-value pairs. This option has been |
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* available since version 1.0.3.</li> |
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* <li>'on': the ON clause. The condition specified here will be appended |
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* to the joining condition using the AND operator. This option has been |
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* available since version 1.0.2.</li> |
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* <li>'index': the name of the column whose values should be used as keys |
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* of the array that stores related objects. This option is only available to |
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* HAS_MANY and MANY_MANY relations. This option has been available since version 1.0.7.</li> |
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* <li>'scopes': scopes to apply. In case of a single scope can be used like 'scopes'=>'scopeName', |
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* in case of multiple scopes can be used like 'scopes'=>array('scopeName1','scopeName2'). |
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* This option has been available since version 1.1.9.</li> |
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* </ul> |
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* |
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* The following options are available for certain relations when lazy loading: |
|
* <ul> |
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* <li>'group': string, the GROUP BY clause. Defaults to empty. Note, column references need to |
|
* be disambiguated with prefix 'relationName.' (e.g. relationName.age). This option only applies to HAS_MANY and MANY_MANY relations.</li> |
|
* <li>'having': string, the HAVING clause. Defaults to empty. Note, column references need to |
|
* be disambiguated with prefix 'relationName.' (e.g. relationName.age). This option only applies to HAS_MANY and MANY_MANY relations.</li> |
|
* <li>'limit': limit of the rows to be selected. This option does not apply to BELONGS_TO relation.</li> |
|
* <li>'offset': offset of the rows to be selected. This option does not apply to BELONGS_TO relation.</li> |
|
* <li>'through': name of the model's relation that will be used as a bridge when getting related data. Can be set only for HAS_ONE and HAS_MANY. This option has been available since version 1.1.7.</li> |
|
* </ul> |
|
* |
|
* Below is an example declaring related objects for 'Post' active record class: |
|
* <pre> |
|
* return array( |
|
* 'author'=>array(self::BELONGS_TO, 'User', 'author_id'), |
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* 'comments'=>array(self::HAS_MANY, 'Comment', 'post_id', 'with'=>'author', 'order'=>'create_time DESC'), |
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* 'tags'=>array(self::MANY_MANY, 'Tag', 'post_tag(post_id, tag_id)', 'order'=>'name'), |
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* ); |
|
* </pre> |
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* |
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* @return array list of related object declarations. Defaults to empty array. |
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*/ |
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public function relations() |
|
{ |
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return array(); |
|
} |
|
|
|
/** |
|
* Returns the declaration of named scopes. |
|
* A named scope represents a query criteria that can be chained together with |
|
* other named scopes and applied to a query. This method should be overridden |
|
* by child classes to declare named scopes for the particular AR classes. |
|
* For example, the following code declares two named scopes: 'recently' and |
|
* 'published'. |
|
* <pre> |
|
* return array( |
|
* 'published'=>array( |
|
* 'condition'=>'status=1', |
|
* ), |
|
* 'recently'=>array( |
|
* 'order'=>'create_time DESC', |
|
* 'limit'=>5, |
|
* ), |
|
* ); |
|
* </pre> |
|
* If the above scopes are declared in a 'Post' model, we can perform the following |
|
* queries: |
|
* <pre> |
|
* $posts=Post::model()->published()->findAll(); |
|
* $posts=Post::model()->published()->recently()->findAll(); |
|
* $posts=Post::model()->published()->with('comments')->findAll(); |
|
* </pre> |
|
* Note that the last query is a relational query. |
|
* |
|
* @return array the scope definition. The array keys are scope names; the array |
|
* values are the corresponding scope definitions. Each scope definition is represented |
|
* as an array whose keys must be properties of {@link CDbCriteria}. |
|
*/ |
|
public function scopes() |
|
{ |
|
return array(); |
|
} |
|
|
|
/** |
|
* Returns the list of all attribute names of the model. |
|
* This would return all column names of the table associated with this AR class. |
|
* @return array list of attribute names. |
|
*/ |
|
public function attributeNames() |
|
{ |
|
return array_keys($this->getMetaData()->columns); |
|
} |
|
|
|
/** |
|
* Returns the text label for the specified attribute. |
|
* This method overrides the parent implementation by supporting |
|
* returning the label defined in relational object. |
|
* In particular, if the attribute name is in the form of "post.author.name", |
|
* then this method will derive the label from the "author" relation's "name" attribute. |
|
* @param string $attribute the attribute name |
|
* @return string the attribute label |
|
* @see generateAttributeLabel |
|
*/ |
|
public function getAttributeLabel($attribute) |
|
{ |
|
$labels = $this->attributeLabels(); |
|
if (isset($labels[$attribute])) |
|
return $labels[$attribute]; |
|
elseif (strpos($attribute, '.') !== false) |
|
{ |
|
$segs = explode('.', $attribute); |
|
$name = array_pop($segs); |
|
$model = $this; |
|
foreach ($segs as $seg) |
|
{ |
|
$relations = $model->getMetaData()->relations; |
|
if (isset($relations[$seg])) |
|
$model = ActiveRecord::model($relations[$seg]->className); |
|
else |
|
break; |
|
} |
|
return $model->getAttributeLabel($name); |
|
} else |
|
return $this->generateAttributeLabel($attribute); |
|
} |
|
|
|
/** |
|
* Returns the database connection used by active record. |
|
* By default, the "db" application component is used as the database connection. |
|
* You may override this method if you want to use a different database connection. |
|
* @return CDbConnection the database connection used by active record. |
|
*/ |
|
public function getDbConnection() |
|
{ |
|
if (self::$db !== null) |
|
return self::$db; |
|
else |
|
{ |
|
self::$db = Yii::app()->getDb(); |
|
if (self::$db instanceof CDbConnection) |
|
return self::$db; |
|
else |
|
throw new CDbException(Yii::t('yii', 'Active Record requires a "db" CDbConnection application component.')); |
|
} |
|
} |
|
|
|
/** |
|
* Returns the named relation declared for this AR class. |
|
* @param string $name the relation name |
|
* @return CActiveRelation the named relation declared for this AR class. Null if the relation does not exist. |
|
*/ |
|
public function getActiveRelation($name) |
|
{ |
|
return isset($this->getMetaData()->relations[$name]) ? $this->getMetaData()->relations[$name] : null; |
|
} |
|
|
|
/** |
|
* Returns the metadata of the table that this AR belongs to |
|
* @return CDbTableSchema the metadata of the table that this AR belongs to |
|
*/ |
|
public function getTableSchema() |
|
{ |
|
return $this->getMetaData()->tableSchema; |
|
} |
|
|
|
/** |
|
* Returns the command builder used by this AR. |
|
* @return CDbCommandBuilder the command builder used by this AR |
|
*/ |
|
public function getCommandBuilder() |
|
{ |
|
return $this->getDbConnection()->getSchema()->getCommandBuilder(); |
|
} |
|
|
|
/** |
|
* Checks whether this AR has the named attribute |
|
* @param string $name attribute name |
|
* @return boolean whether this AR has the named attribute (table column). |
|
*/ |
|
public function hasAttribute($name) |
|
{ |
|
return isset($this->getMetaData()->columns[$name]); |
|
} |
|
|
|
/** |
|
* Returns the named attribute value. |
|
* If this is a new record and the attribute is not set before, |
|
* the default column value will be returned. |
|
* If this record is the result of a query and the attribute is not loaded, |
|
* null will be returned. |
|
* You may also use $this->AttributeName to obtain the attribute value. |
|
* @param string $name the attribute name |
|
* @return mixed the attribute value. Null if the attribute is not set or does not exist. |
|
* @see hasAttribute |
|
*/ |
|
public function getAttribute($name) |
|
{ |
|
if (property_exists($this, $name)) |
|
return $this->$name; |
|
elseif (isset($this->_attributes[$name])) |
|
return $this->_attributes[$name]; |
|
} |
|
|
|
/** |
|
* Sets the named attribute value. |
|
* You may also use $this->AttributeName to set the attribute value. |
|
* @param string $name the attribute name |
|
* @param mixed $value the attribute value. |
|
* @return boolean whether the attribute exists and the assignment is conducted successfully |
|
* @see hasAttribute |
|
*/ |
|
public function setAttribute($name, $value) |
|
{ |
|
if (property_exists($this, $name)) |
|
$this->$name = $value; |
|
elseif (isset($this->getMetaData()->columns[$name])) |
|
$this->_attributes[$name] = $value; |
|
else |
|
return false; |
|
return true; |
|
} |
|
|
|
/** |
|
* Do not call this method. This method is used internally by {@link CActiveFinder} to populate |
|
* related objects. This method adds a related object to this record. |
|
* @param string $name attribute name |
|
* @param mixed $record the related record |
|
* @param mixed $index the index value in the related object collection. |
|
* If true, it means using zero-based integer index. |
|
* If false, it means a HAS_ONE or BELONGS_TO object and no index is needed. |
|
*/ |
|
public function addRelatedRecord($name, $record, $index) |
|
{ |
|
if ($index !== false) |
|
{ |
|
if (!isset($this->_related[$name])) |
|
$this->_related[$name] = array(); |
|
if ($record instanceof ActiveRecord) |
|
{ |
|
if ($index === true) |
|
$this->_related[$name][] = $record; |
|
else |
|
$this->_related[$name][$index] = $record; |
|
} |
|
} elseif (!isset($this->_related[$name])) |
|
$this->_related[$name] = $record; |
|
} |
|
|
|
/** |
|
* Returns all column attribute values. |
|
* Note, related objects are not returned. |
|
* @param mixed $names names of attributes whose value needs to be returned. |
|
* If this is true (default), then all attribute values will be returned, including |
|
* those that are not loaded from DB (null will be returned for those attributes). |
|
* If this is null, all attributes except those that are not loaded from DB will be returned. |
|
* @return array attribute values indexed by attribute names. |
|
*/ |
|
public function getAttributes($names = true) |
|
{ |
|
$attributes = $this->_attributes; |
|
foreach ($this->getMetaData()->columns as $name => $column) |
|
{ |
|
if (property_exists($this, $name)) |
|
$attributes[$name] = $this->$name; |
|
elseif ($names === true && !isset($attributes[$name])) |
|
$attributes[$name] = null; |
|
} |
|
if (is_array($names)) |
|
{ |
|
$attrs = array(); |
|
foreach ($names as $name) |
|
{ |
|
if (property_exists($this, $name)) |
|
$attrs[$name] = $this->$name; |
|
else |
|
$attrs[$name] = isset($attributes[$name]) ? $attributes[$name] : null; |
|
} |
|
return $attrs; |
|
} else |
|
return $attributes; |
|
} |
|
|
|
/** |
|
* Saves the current record. |
|
* |
|
* The record is inserted as a row into the database table if its {@link isNewRecord} |
|
* property is true (usually the case when the record is created using the 'new' |
|
* operator). Otherwise, it will be used to update the corresponding row in the table |
|
* (usually the case if the record is obtained using one of those 'find' methods.) |
|
* |
|
* Validation will be performed before saving the record. If the validation fails, |
|
* the record will not be saved. You can call {@link getErrors()} to retrieve the |
|
* validation errors. |
|
* |
|
* If the record is saved via insertion, its {@link isNewRecord} property will be |
|
* set false, and its {@link scenario} property will be set to be 'update'. |
|
* And if its primary key is auto-incremental and is not set before insertion, |
|
* the primary key will be populated with the automatically generated key value. |
|
* |
|
* @param boolean $runValidation whether to perform validation before saving the record. |
|
* If the validation fails, the record will not be saved to database. |
|
* @param array $attributes list of attributes that need to be saved. Defaults to null, |
|
* meaning all attributes that are loaded from DB will be saved. |
|
* @return boolean whether the saving succeeds |
|
*/ |
|
public function save($runValidation = true, $attributes = null) |
|
{ |
|
if (!$runValidation || $this->validate($attributes)) |
|
return $this->getIsNewRecord() ? $this->insert($attributes) : $this->update($attributes); |
|
else |
|
return false; |
|
} |
|
|
|
/** |
|
* Returns if the current record is new. |
|
* @return boolean whether the record is new and should be inserted when calling {@link save}. |
|
* This property is automatically set in constructor and {@link populateRecord}. |
|
* Defaults to false, but it will be set to true if the instance is created using |
|
* the new operator. |
|
*/ |
|
public function getIsNewRecord() |
|
{ |
|
return $this->_new; |
|
} |
|
|
|
/** |
|
* Sets if the record is new. |
|
* @param boolean $value whether the record is new and should be inserted when calling {@link save}. |
|
* @see getIsNewRecord |
|
*/ |
|
public function setIsNewRecord($value) |
|
{ |
|
$this->_new = $value; |
|
} |
|
|
|
/** |
|
* This event is raised before the record is saved. |
|
* By setting {@link CModelEvent::isValid} to be false, the normal {@link save()} process will be stopped. |
|
* @param CModelEvent $event the event parameter |
|
*/ |
|
public function onBeforeSave($event) |
|
{ |
|
$this->raiseEvent('onBeforeSave', $event); |
|
} |
|
|
|
/** |
|
* This event is raised after the record is saved. |
|
* @param CEvent $event the event parameter |
|
*/ |
|
public function onAfterSave($event) |
|
{ |
|
$this->raiseEvent('onAfterSave', $event); |
|
} |
|
|
|
/** |
|
* This event is raised before the record is deleted. |
|
* By setting {@link CModelEvent::isValid} to be false, the normal {@link delete()} process will be stopped. |
|
* @param CModelEvent $event the event parameter |
|
*/ |
|
public function onBeforeDelete($event) |
|
{ |
|
$this->raiseEvent('onBeforeDelete', $event); |
|
} |
|
|
|
/** |
|
* This event is raised after the record is deleted. |
|
* @param CEvent $event the event parameter |
|
*/ |
|
public function onAfterDelete($event) |
|
{ |
|
$this->raiseEvent('onAfterDelete', $event); |
|
} |
|
|
|
/** |
|
* This event is raised before an AR finder performs a find call. |
|
* In this event, the {@link CModelEvent::criteria} property contains the query criteria |
|
* passed as parameters to those find methods. If you want to access |
|
* the query criteria specified in scopes, please use {@link getDbCriteria()}. |
|
* You can modify either criteria to customize them based on needs. |
|
* @param CModelEvent $event the event parameter |
|
* @see beforeFind |
|
*/ |
|
public function onBeforeFind($event) |
|
{ |
|
$this->raiseEvent('onBeforeFind', $event); |
|
} |
|
|
|
/** |
|
* This event is raised after the record is instantiated by a find method. |
|
* @param CEvent $event the event parameter |
|
*/ |
|
public function onAfterFind($event) |
|
{ |
|
$this->raiseEvent('onAfterFind', $event); |
|
} |
|
|
|
/** |
|
* This method is invoked before saving a record (after validation, if any). |
|
* The default implementation raises the {@link onBeforeSave} event. |
|
* You may override this method to do any preparation work for record saving. |
|
* Use {@link isNewRecord} to determine whether the saving is |
|
* for inserting or updating record. |
|
* Make sure you call the parent implementation so that the event is raised properly. |
|
* @return boolean whether the saving should be executed. Defaults to true. |
|
*/ |
|
protected function beforeSave() |
|
{ |
|
if ($this->hasEventHandler('onBeforeSave')) |
|
{ |
|
$event = new CModelEvent($this); |
|
$this->onBeforeSave($event); |
|
return $event->isValid; |
|
} else |
|
return true; |
|
} |
|
|
|
/** |
|
* This method is invoked after saving a record successfully. |
|
* The default implementation raises the {@link onAfterSave} event. |
|
* You may override this method to do postprocessing after record saving. |
|
* Make sure you call the parent implementation so that the event is raised properly. |
|
*/ |
|
protected function afterSave() |
|
{ |
|
if ($this->hasEventHandler('onAfterSave')) |
|
$this->onAfterSave(new CEvent($this)); |
|
} |
|
|
|
/** |
|
* This method is invoked before deleting a record. |
|
* The default implementation raises the {@link onBeforeDelete} event. |
|
* You may override this method to do any preparation work for record deletion. |
|
* Make sure you call the parent implementation so that the event is raised properly. |
|
* @return boolean whether the record should be deleted. Defaults to true. |
|
*/ |
|
protected function beforeDelete() |
|
{ |
|
if ($this->hasEventHandler('onBeforeDelete')) |
|
{ |
|
$event = new CModelEvent($this); |
|
$this->onBeforeDelete($event); |
|
return $event->isValid; |
|
} else |
|
return true; |
|
} |
|
|
|
/** |
|
* This method is invoked after deleting a record. |
|
* The default implementation raises the {@link onAfterDelete} event. |
|
* You may override this method to do postprocessing after the record is deleted. |
|
* Make sure you call the parent implementation so that the event is raised properly. |
|
*/ |
|
protected function afterDelete() |
|
{ |
|
if ($this->hasEventHandler('onAfterDelete')) |
|
$this->onAfterDelete(new CEvent($this)); |
|
} |
|
|
|
/** |
|
* This method is invoked before an AR finder executes a find call. |
|
* The find calls include {@link find}, {@link findAll}, {@link findByPk}, |
|
* {@link findAllByPk}, {@link findByAttributes} and {@link findAllByAttributes}. |
|
* The default implementation raises the {@link onBeforeFind} event. |
|
* If you override this method, make sure you call the parent implementation |
|
* so that the event is raised properly. |
|
* |
|
* Starting from version 1.1.5, this method may be called with a hidden {@link CDbCriteria} |
|
* parameter which represents the current query criteria as passed to a find method of AR. |
|
*/ |
|
protected function beforeFind() |
|
{ |
|
if ($this->hasEventHandler('onBeforeFind')) |
|
{ |
|
$event = new CModelEvent($this); |
|
// for backward compatibility |
|
$event->criteria = func_num_args() > 0 ? func_get_arg(0) : null; |
|
$this->onBeforeFind($event); |
|
} |
|
} |
|
|
|
/** |
|
* This method is invoked after each record is instantiated by a find method. |
|
* The default implementation raises the {@link onAfterFind} event. |
|
* You may override this method to do postprocessing after each newly found record is instantiated. |
|
* Make sure you call the parent implementation so that the event is raised properly. |
|
*/ |
|
protected function afterFind() |
|
{ |
|
if ($this->hasEventHandler('onAfterFind')) |
|
$this->onAfterFind(new CEvent($this)); |
|
} |
|
|
|
/** |
|
* Calls {@link beforeFind}. |
|
* This method is internally used. |
|
*/ |
|
public function beforeFindInternal() |
|
{ |
|
$this->beforeFind(); |
|
} |
|
|
|
/** |
|
* Calls {@link afterFind}. |
|
* This method is internally used. |
|
*/ |
|
public function afterFindInternal() |
|
{ |
|
$this->afterFind(); |
|
} |
|
|
|
/** |
|
* Inserts a row into the table based on this active record attributes. |
|
* If the table's primary key is auto-incremental and is null before insertion, |
|
* it will be populated with the actual value after insertion. |
|
* Note, validation is not performed in this method. You may call {@link validate} to perform the validation. |
|
* After the record is inserted to DB successfully, its {@link isNewRecord} property will be set false, |
|
* and its {@link scenario} property will be set to be 'update'. |
|
* @param array $attributes list of attributes that need to be saved. Defaults to null, |
|
* meaning all attributes that are loaded from DB will be saved. |
|
* @return boolean whether the attributes are valid and the record is inserted successfully. |
|
* @throws CException if the record is not new |
|
*/ |
|
public function insert($attributes = null) |
|
{ |
|
if (!$this->getIsNewRecord()) |
|
throw new CDbException(Yii::t('yii', 'The active record cannot be inserted to database because it is not new.')); |
|
if ($this->beforeSave()) |
|
{ |
|
Yii::trace(get_class($this) . '.insert()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$table = $this->getMetaData()->tableSchema; |
|
$command = $builder->createInsertCommand($table, $this->getAttributes($attributes)); |
|
if ($command->execute()) |
|
{ |
|
$primaryKey = $table->primaryKey; |
|
if ($table->sequenceName !== null) |
|
{ |
|
if (is_string($primaryKey) && $this->$primaryKey === null) |
|
$this->$primaryKey = $builder->getLastInsertID($table); |
|
elseif (is_array($primaryKey)) |
|
{ |
|
foreach ($primaryKey as $pk) |
|
{ |
|
if ($this->$pk === null) |
|
{ |
|
$this->$pk = $builder->getLastInsertID($table); |
|
break; |
|
} |
|
} |
|
} |
|
} |
|
$this->_pk = $this->getPrimaryKey(); |
|
$this->afterSave(); |
|
$this->setIsNewRecord(false); |
|
$this->setScenario('update'); |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
/** |
|
* Updates the row represented by this active record. |
|
* All loaded attributes will be saved to the database. |
|
* Note, validation is not performed in this method. You may call {@link validate} to perform the validation. |
|
* @param array $attributes list of attributes that need to be saved. Defaults to null, |
|
* meaning all attributes that are loaded from DB will be saved. |
|
* @return boolean whether the update is successful |
|
* @throws CException if the record is new |
|
*/ |
|
public function update($attributes = null) |
|
{ |
|
if ($this->getIsNewRecord()) |
|
throw new CDbException(Yii::t('yii', 'The active record cannot be updated because it is new.')); |
|
if ($this->beforeSave()) |
|
{ |
|
Yii::trace(get_class($this) . '.update()', 'system.db.ar.ActiveRecord'); |
|
if ($this->_pk === null) |
|
$this->_pk = $this->getPrimaryKey(); |
|
$this->updateByPk($this->getOldPrimaryKey(), $this->getAttributes($attributes)); |
|
$this->_pk = $this->getPrimaryKey(); |
|
$this->afterSave(); |
|
return true; |
|
} else |
|
return false; |
|
} |
|
|
|
/** |
|
* Saves a selected list of attributes. |
|
* Unlike {@link save}, this method only saves the specified attributes |
|
* of an existing row dataset and does NOT call either {@link beforeSave} or {@link afterSave}. |
|
* Also note that this method does neither attribute filtering nor validation. |
|
* So do not use this method with untrusted data (such as user posted data). |
|
* You may consider the following alternative if you want to do so: |
|
* <pre> |
|
* $postRecord=Post::model()->findByPk($postID); |
|
* $postRecord->attributes=$_POST['post']; |
|
* $postRecord->save(); |
|
* </pre> |
|
* @param array $attributes attributes to be updated. Each element represents an attribute name |
|
* or an attribute value indexed by its name. If the latter, the record's |
|
* attribute will be changed accordingly before saving. |
|
* @return boolean whether the update is successful |
|
* @throws CException if the record is new or any database error |
|
*/ |
|
public function saveAttributes($attributes) |
|
{ |
|
if (!$this->getIsNewRecord()) |
|
{ |
|
Yii::trace(get_class($this) . '.saveAttributes()', 'system.db.ar.ActiveRecord'); |
|
$values = array(); |
|
foreach ($attributes as $name => $value) |
|
{ |
|
if (is_integer($name)) |
|
$values[$value] = $this->$value; |
|
else |
|
$values[$name] = $this->$name = $value; |
|
} |
|
if ($this->_pk === null) |
|
$this->_pk = $this->getPrimaryKey(); |
|
if ($this->updateByPk($this->getOldPrimaryKey(), $values) > 0) |
|
{ |
|
$this->_pk = $this->getPrimaryKey(); |
|
return true; |
|
} else |
|
return false; |
|
} else |
|
throw new CDbException(Yii::t('yii', 'The active record cannot be updated because it is new.')); |
|
} |
|
|
|
/** |
|
* Saves one or several counter columns for the current AR object. |
|
* Note that this method differs from {@link updateCounters} in that it only |
|
* saves the current AR object. |
|
* An example usage is as follows: |
|
* <pre> |
|
* $postRecord=Post::model()->findByPk($postID); |
|
* $postRecord->saveCounters(array('view_count'=>1)); |
|
* </pre> |
|
* Use negative values if you want to decrease the counters. |
|
* @param array $counters the counters to be updated (column name=>increment value) |
|
* @return boolean whether the saving is successful |
|
* @see updateCounters |
|
*/ |
|
public function saveCounters($counters) |
|
{ |
|
Yii::trace(get_class($this) . '.saveCounters()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$table = $this->getTableSchema(); |
|
$criteria = $builder->createPkCriteria($table, $this->getOldPrimaryKey()); |
|
$command = $builder->createUpdateCounterCommand($this->getTableSchema(), $counters, $criteria); |
|
if ($command->execute()) |
|
{ |
|
foreach ($counters as $name => $value) |
|
$this->$name = $this->$name + $value; |
|
return true; |
|
} else |
|
return false; |
|
} |
|
|
|
/** |
|
* Deletes the row corresponding to this active record. |
|
* @return boolean whether the deletion is successful. |
|
* @throws CException if the record is new |
|
*/ |
|
public function delete() |
|
{ |
|
if (!$this->getIsNewRecord()) |
|
{ |
|
Yii::trace(get_class($this) . '.delete()', 'system.db.ar.ActiveRecord'); |
|
if ($this->beforeDelete()) |
|
{ |
|
$result = $this->deleteByPk($this->getPrimaryKey()) > 0; |
|
$this->afterDelete(); |
|
return $result; |
|
} else |
|
return false; |
|
} else |
|
throw new CDbException(Yii::t('yii', 'The active record cannot be deleted because it is new.')); |
|
} |
|
|
|
/** |
|
* Repopulates this active record with the latest data. |
|
* @return boolean whether the row still exists in the database. If true, the latest data will be populated to this active record. |
|
*/ |
|
public function refresh() |
|
{ |
|
Yii::trace(get_class($this) . '.refresh()', 'system.db.ar.ActiveRecord'); |
|
if (!$this->getIsNewRecord() && ($record = $this->findByPk($this->getPrimaryKey())) !== null) |
|
{ |
|
$this->_attributes = array(); |
|
$this->_related = array(); |
|
foreach ($this->getMetaData()->columns as $name => $column) |
|
{ |
|
if (property_exists($this, $name)) |
|
$this->$name = $record->$name; |
|
else |
|
$this->_attributes[$name] = $record->$name; |
|
} |
|
return true; |
|
} else |
|
return false; |
|
} |
|
|
|
/** |
|
* Compares current active record with another one. |
|
* The comparison is made by comparing table name and the primary key values of the two active records. |
|
* @param ActiveRecord $record record to compare to |
|
* @return boolean whether the two active records refer to the same row in the database table. |
|
*/ |
|
public function equals($record) |
|
{ |
|
return $this->tableName() === $record->tableName() && $this->getPrimaryKey() === $record->getPrimaryKey(); |
|
} |
|
|
|
/** |
|
* Returns the primary key value. |
|
* @return mixed the primary key value. An array (column name=>column value) is returned if the primary key is composite. |
|
* If primary key is not defined, null will be returned. |
|
*/ |
|
public function getPrimaryKey() |
|
{ |
|
$table = $this->getMetaData()->tableSchema; |
|
if (is_string($table->primaryKey)) |
|
return $this-> {$table->primaryKey}; |
|
elseif (is_array($table->primaryKey)) |
|
{ |
|
$values = array(); |
|
foreach ($table->primaryKey as $name) |
|
$values[$name] = $this->$name; |
|
return $values; |
|
} else |
|
return null; |
|
} |
|
|
|
/** |
|
* Sets the primary key value. |
|
* After calling this method, the old primary key value can be obtained from {@link oldPrimaryKey}. |
|
* @param mixed $value the new primary key value. If the primary key is composite, the new value |
|
* should be provided as an array (column name=>column value). |
|
*/ |
|
public function setPrimaryKey($value) |
|
{ |
|
$this->_pk = $this->getPrimaryKey(); |
|
$table = $this->getMetaData()->tableSchema; |
|
if (is_string($table->primaryKey)) |
|
$this-> {$table->primaryKey} = $value; |
|
elseif (is_array($table->primaryKey)) |
|
{ |
|
foreach ($table->primaryKey as $name) |
|
$this->$name = $value[$name]; |
|
} |
|
} |
|
|
|
/** |
|
* Returns the old primary key value. |
|
* This refers to the primary key value that is populated into the record |
|
* after executing a find method (e.g. find(), findAll()). |
|
* The value remains unchanged even if the primary key attribute is manually assigned with a different value. |
|
* @return mixed the old primary key value. An array (column name=>column value) is returned if the primary key is composite. |
|
* If primary key is not defined, null will be returned. |
|
*/ |
|
public function getOldPrimaryKey() |
|
{ |
|
return $this->_pk; |
|
} |
|
|
|
/** |
|
* Sets the old primary key value. |
|
* @param mixed $value the old primary key value. |
|
*/ |
|
public function setOldPrimaryKey($value) |
|
{ |
|
$this->_pk = $value; |
|
} |
|
|
|
/** |
|
* Performs the actual DB query and populates the AR objects with the query result. |
|
* This method is mainly internally used by other AR query methods. |
|
* @param CDbCriteria $criteria the query criteria |
|
* @param boolean $all whether to return all data |
|
* @return mixed the AR objects populated with the query result |
|
*/ |
|
protected function query($criteria, $all = false) |
|
{ |
|
$this->beforeFind(); |
|
$this->applyScopes($criteria); |
|
if (empty($criteria->with)) |
|
{ |
|
if (!$all) |
|
$criteria->limit = 1; |
|
$command = $this->getCommandBuilder()->createFindCommand($this->getTableSchema(), $criteria); |
|
return $all ? $this->populateRecords($command->queryAll(), true, $criteria->index) : $this->populateRecord($command->queryRow()); |
|
} else |
|
{ |
|
$finder = new CActiveFinder($this, $criteria->with); |
|
return $finder->query($criteria, $all); |
|
} |
|
} |
|
|
|
/** |
|
* Applies the query scopes to the given criteria. |
|
* This method merges {@link dbCriteria} with the given criteria parameter. |
|
* It then resets {@link dbCriteria} to be null. |
|
* @param CDbCriteria $criteria the query criteria. This parameter may be modified by merging {@link dbCriteria}. |
|
*/ |
|
public function applyScopes(&$criteria) |
|
{ |
|
if (!empty($criteria->scopes)) |
|
{ |
|
$scs = $this->scopes(); |
|
$c = $this->getDbCriteria(); |
|
foreach ((array)$criteria->scopes as $k => $v) |
|
{ |
|
if (is_integer($k)) |
|
{ |
|
if (is_string($v)) |
|
{ |
|
if (isset($scs[$v])) |
|
{ |
|
$c->mergeWith($scs[$v], true); |
|
continue; |
|
} |
|
$scope = $v; |
|
$params = array(); |
|
} elseif (is_array($v)) |
|
{ |
|
$scope = key($v); |
|
$params = current($v); |
|
} |
|
} elseif (is_string($k)) |
|
{ |
|
$scope = $k; |
|
$params = $v; |
|
} |
|
|
|
call_user_func_array(array($this, $scope), (array)$params); |
|
} |
|
} |
|
|
|
if (isset($c) || ($c = $this->getDbCriteria(false)) !== null) |
|
{ |
|
$c->mergeWith($criteria); |
|
$criteria = $c; |
|
$this->_c = null; |
|
} |
|
} |
|
|
|
/** |
|
* Returns the table alias to be used by the find methods. |
|
* In relational queries, the returned table alias may vary according to |
|
* the corresponding relation declaration. Also, the default table alias |
|
* set by {@link setTableAlias} may be overridden by the applied scopes. |
|
* @param boolean $quote whether to quote the alias name |
|
* @param boolean $checkScopes whether to check if a table alias is defined in the applied scopes so far. |
|
* This parameter must be set false when calling this method in {@link defaultScope}. |
|
* An infinite loop would be formed otherwise. |
|
* @return string the default table alias |
|
*/ |
|
public function getTableAlias($quote = false, $checkScopes = true) |
|
{ |
|
if ($checkScopes && ($criteria = $this->getDbCriteria(false)) !== null && $criteria->alias != '') |
|
$alias = $criteria->alias; |
|
else |
|
$alias = $this->_alias; |
|
return $quote ? $this->getDbConnection()->getSchema()->quoteTableName($alias) : $alias; |
|
} |
|
|
|
/** |
|
* Sets the table alias to be used in queries. |
|
* @param string $alias the table alias to be used in queries. The alias should NOT be quoted. |
|
*/ |
|
public function setTableAlias($alias) |
|
{ |
|
$this->_alias = $alias; |
|
} |
|
|
|
/** |
|
* Finds a single active record with the specified condition. |
|
* @param mixed $condition query condition or criteria. |
|
* If a string, it is treated as query condition (the WHERE clause); |
|
* If an array, it is treated as the initial values for constructing a {@link CDbCriteria} object; |
|
* Otherwise, it should be an instance of {@link CDbCriteria}. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* This is only used when the first parameter is a string (query condition). |
|
* In other cases, please use {@link CDbCriteria::params} to set parameters. |
|
* @return ActiveRecord the record found. Null if no record is found. |
|
*/ |
|
public function find($condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.find()', 'system.db.ar.ActiveRecord'); |
|
$criteria = $this->getCommandBuilder()->createCriteria($condition, $params); |
|
return $this->query($criteria); |
|
} |
|
|
|
/** |
|
* Finds all active records satisfying the specified condition. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return array list of active records satisfying the specified condition. An empty array is returned if none is found. |
|
*/ |
|
public function findAll($condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findAll()', 'system.db.ar.ActiveRecord'); |
|
$criteria = $this->getCommandBuilder()->createCriteria($condition, $params); |
|
return $this->query($criteria, true); |
|
} |
|
|
|
/** |
|
* Finds a single active record with the specified primary key. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $pk primary key value(s). Use array for multiple primary keys. For composite key, each key value must be an array (column name=>column value). |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return ActiveRecord the record found. Null if none is found. |
|
*/ |
|
public function findByPk($pk, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findByPk()', 'system.db.ar.ActiveRecord'); |
|
$prefix = $this->getTableAlias(true) . '.'; |
|
$criteria = $this->getCommandBuilder()->createPkCriteria($this->getTableSchema(), $pk, $condition, $params, $prefix); |
|
return $this->query($criteria); |
|
} |
|
|
|
/** |
|
* Finds all active records with the specified primary keys. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $pk primary key value(s). Use array for multiple primary keys. For composite key, each key value must be an array (column name=>column value). |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return array the records found. An empty array is returned if none is found. |
|
*/ |
|
public function findAllByPk($pk, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findAllByPk()', 'system.db.ar.ActiveRecord'); |
|
$prefix = $this->getTableAlias(true) . '.'; |
|
$criteria = $this->getCommandBuilder()->createPkCriteria($this->getTableSchema(), $pk, $condition, $params, $prefix); |
|
return $this->query($criteria, true); |
|
} |
|
|
|
/** |
|
* Finds a single active record that has the specified attribute values. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param array $attributes list of attribute values (indexed by attribute names) that the active records should match. |
|
* Since version 1.0.8, an attribute value can be an array which will be used to generate an IN condition. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return ActiveRecord the record found. Null if none is found. |
|
*/ |
|
public function findByAttributes($attributes, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findByAttributes()', 'system.db.ar.ActiveRecord'); |
|
$prefix = $this->getTableAlias(true) . '.'; |
|
$criteria = $this->getCommandBuilder()->createColumnCriteria($this->getTableSchema(), $attributes, $condition, $params, $prefix); |
|
return $this->query($criteria); |
|
} |
|
|
|
/** |
|
* Finds all active records that have the specified attribute values. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param array $attributes list of attribute values (indexed by attribute names) that the active records should match. |
|
* Since version 1.0.8, an attribute value can be an array which will be used to generate an IN condition. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return array the records found. An empty array is returned if none is found. |
|
*/ |
|
public function findAllByAttributes($attributes, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findAllByAttributes()', 'system.db.ar.ActiveRecord'); |
|
$prefix = $this->getTableAlias(true) . '.'; |
|
$criteria = $this->getCommandBuilder()->createColumnCriteria($this->getTableSchema(), $attributes, $condition, $params, $prefix); |
|
return $this->query($criteria, true); |
|
} |
|
|
|
/** |
|
* Finds a single active record with the specified SQL statement. |
|
* @param string $sql the SQL statement |
|
* @param array $params parameters to be bound to the SQL statement |
|
* @return ActiveRecord the record found. Null if none is found. |
|
*/ |
|
public function findBySql($sql, $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findBySql()', 'system.db.ar.ActiveRecord'); |
|
$this->beforeFind(); |
|
if (($criteria = $this->getDbCriteria(false)) !== null && !empty($criteria->with)) |
|
{ |
|
$this->_c = null; |
|
$finder = new CActiveFinder($this, $criteria->with); |
|
return $finder->findBySql($sql, $params); |
|
} else |
|
{ |
|
$command = $this->getCommandBuilder()->createSqlCommand($sql, $params); |
|
return $this->populateRecord($command->queryRow()); |
|
} |
|
} |
|
|
|
/** |
|
* Finds all active records using the specified SQL statement. |
|
* @param string $sql the SQL statement |
|
* @param array $params parameters to be bound to the SQL statement |
|
* @return array the records found. An empty array is returned if none is found. |
|
*/ |
|
public function findAllBySql($sql, $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.findAllBySql()', 'system.db.ar.ActiveRecord'); |
|
$this->beforeFind(); |
|
if (($criteria = $this->getDbCriteria(false)) !== null && !empty($criteria->with)) |
|
{ |
|
$this->_c = null; |
|
$finder = new CActiveFinder($this, $criteria->with); |
|
return $finder->findAllBySql($sql, $params); |
|
} else |
|
{ |
|
$command = $this->getCommandBuilder()->createSqlCommand($sql, $params); |
|
return $this->populateRecords($command->queryAll()); |
|
} |
|
} |
|
|
|
/** |
|
* Finds the number of rows satisfying the specified query condition. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return string the number of rows satisfying the specified query condition. Note: type is string to keep max. precision. |
|
*/ |
|
public function count($condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.count()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createCriteria($condition, $params); |
|
$this->applyScopes($criteria); |
|
|
|
if (empty($criteria->with)) |
|
return $builder->createCountCommand($this->getTableSchema(), $criteria)->queryScalar(); |
|
else |
|
{ |
|
$finder = new CActiveFinder($this, $criteria->with); |
|
return $finder->count($criteria); |
|
} |
|
} |
|
|
|
/** |
|
* Finds the number of rows that have the specified attribute values. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param array $attributes list of attribute values (indexed by attribute names) that the active records should match. |
|
* An attribute value can be an array which will be used to generate an IN condition. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return string the number of rows satisfying the specified query condition. Note: type is string to keep max. precision. |
|
*/ |
|
public function countByAttributes($attributes, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.countByAttributes()', 'system.db.ar.ActiveRecord'); |
|
$prefix = $this->getTableAlias(true) . '.'; |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createColumnCriteria($this->getTableSchema(), $attributes, $condition, $params, $prefix); |
|
$this->applyScopes($criteria); |
|
|
|
if (empty($criteria->with)) |
|
return $builder->createCountCommand($this->getTableSchema(), $criteria)->queryScalar(); |
|
else |
|
{ |
|
$finder = new CActiveFinder($this, $criteria->with); |
|
return $finder->count($criteria); |
|
} |
|
} |
|
|
|
/** |
|
* Finds the number of rows using the given SQL statement. |
|
* This is equivalent to calling {@link CDbCommand::queryScalar} with the specified |
|
* SQL statement and the parameters. |
|
* @param string $sql the SQL statement |
|
* @param array $params parameters to be bound to the SQL statement |
|
* @return string the number of rows using the given SQL statement. Note: type is string to keep max. precision. |
|
*/ |
|
public function countBySql($sql, $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.countBySql()', 'system.db.ar.ActiveRecord'); |
|
return $this->getCommandBuilder()->createSqlCommand($sql, $params)->queryScalar(); |
|
} |
|
|
|
/** |
|
* Checks whether there is row satisfying the specified condition. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return boolean whether there is row satisfying the specified condition. |
|
*/ |
|
public function exists($condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.exists()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createCriteria($condition, $params); |
|
$table = $this->getTableSchema(); |
|
$criteria->select = '1'; |
|
$criteria->limit = 1; |
|
$this->applyScopes($criteria); |
|
|
|
if (empty($criteria->with)) |
|
return $builder->createFindCommand($table, $criteria)->queryRow() !== false; |
|
else |
|
{ |
|
$criteria->select = '*'; |
|
$finder = new CActiveFinder($this, $criteria->with); |
|
return $finder->count($criteria) > 0; |
|
} |
|
} |
|
|
|
/** |
|
* Specifies which related objects should be eagerly loaded. |
|
* This method takes variable number of parameters. Each parameter specifies |
|
* the name of a relation or child-relation. For example, |
|
* <pre> |
|
* // find all posts together with their author and comments |
|
* Post::model()->with('author','comments')->findAll(); |
|
* // find all posts together with their author and the author's profile |
|
* Post::model()->with('author','author.profile')->findAll(); |
|
* </pre> |
|
* The relations should be declared in {@link relations()}. |
|
* |
|
* By default, the options specified in {@link relations()} will be used |
|
* to do relational query. In order to customize the options on the fly, |
|
* we should pass an array parameter to the with() method. The array keys |
|
* are relation names, and the array values are the corresponding query options. |
|
* For example, |
|
* <pre> |
|
* Post::model()->with(array( |
|
* 'author'=>array('select'=>'id, name'), |
|
* 'comments'=>array('condition'=>'approved=1', 'order'=>'create_time'), |
|
* ))->findAll(); |
|
* </pre> |
|
* |
|
* Note, the possible parameters to this method have been changed since version 1.0.2. |
|
* Previously, it was not possible to specify on-th-fly query options, |
|
* and child-relations were specified as hierarchical arrays. |
|
* |
|
* @return ActiveRecord the AR object itself. |
|
*/ |
|
public function with() |
|
{ |
|
if (func_num_args() > 0) |
|
{ |
|
$with = func_get_args(); |
|
if (is_array($with[0])) // the parameter is given as an array |
|
$with = $with[0]; |
|
if (!empty($with)) |
|
$this->getDbCriteria()->mergeWith(array('with' => $with)); |
|
} |
|
return $this; |
|
} |
|
|
|
/** |
|
* Sets {@link CDbCriteria::together} property to be true. |
|
* This is only used in relational AR query. Please refer to {@link CDbCriteria::together} |
|
* for more details. |
|
* @return ActiveRecord the AR object itself |
|
*/ |
|
public function together() |
|
{ |
|
$this->getDbCriteria()->together = true; |
|
return $this; |
|
} |
|
|
|
/** |
|
* Updates records with the specified primary key(s). |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* Note, the attributes are not checked for safety and validation is NOT performed. |
|
* @param mixed $pk primary key value(s). Use array for multiple primary keys. For composite key, each key value must be an array (column name=>column value). |
|
* @param array $attributes list of attributes (name=>$value) to be updated |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return integer the number of rows being updated |
|
*/ |
|
public function updateByPk($pk, $attributes, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.updateByPk()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$table = $this->getTableSchema(); |
|
$criteria = $builder->createPkCriteria($table, $pk, $condition, $params); |
|
$command = $builder->createUpdateCommand($table, $attributes, $criteria); |
|
return $command->execute(); |
|
} |
|
|
|
/** |
|
* Updates records with the specified condition. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* Note, the attributes are not checked for safety and no validation is done. |
|
* @param array $attributes list of attributes (name=>$value) to be updated |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return integer the number of rows being updated |
|
*/ |
|
public function updateAll($attributes, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.updateAll()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createCriteria($condition, $params); |
|
$command = $builder->createUpdateCommand($this->getTableSchema(), $attributes, $criteria); |
|
return $command->execute(); |
|
} |
|
|
|
/** |
|
* Updates one or several counter columns. |
|
* Note, this updates all rows of data unless a condition or criteria is specified. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param array $counters the counters to be updated (column name=>increment value) |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return integer the number of rows being updated |
|
* @see saveCounters |
|
*/ |
|
public function updateCounters($counters, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.updateCounters()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createCriteria($condition, $params); |
|
$command = $builder->createUpdateCounterCommand($this->getTableSchema(), $counters, $criteria); |
|
return $command->execute(); |
|
} |
|
|
|
/** |
|
* Deletes rows with the specified primary key. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $pk primary key value(s). Use array for multiple primary keys. For composite key, each key value must be an array (column name=>column value). |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return integer the number of rows deleted |
|
*/ |
|
public function deleteByPk($pk, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.deleteByPk()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createPkCriteria($this->getTableSchema(), $pk, $condition, $params); |
|
$command = $builder->createDeleteCommand($this->getTableSchema(), $criteria); |
|
return $command->execute(); |
|
} |
|
|
|
/** |
|
* Deletes rows with the specified condition. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return integer the number of rows deleted |
|
*/ |
|
public function deleteAll($condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.deleteAll()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$criteria = $builder->createCriteria($condition, $params); |
|
$command = $builder->createDeleteCommand($this->getTableSchema(), $criteria); |
|
return $command->execute(); |
|
} |
|
|
|
/** |
|
* Deletes rows which match the specified attribute values. |
|
* See {@link find()} for detailed explanation about $condition and $params. |
|
* @param array $attributes list of attribute values (indexed by attribute names) that the active records should match. |
|
* Since version 1.0.8, an attribute value can be an array which will be used to generate an IN condition. |
|
* @param mixed $condition query condition or criteria. |
|
* @param array $params parameters to be bound to an SQL statement. |
|
* @return integer number of rows affected by the execution. |
|
*/ |
|
public function deleteAllByAttributes($attributes, $condition = '', $params = array()) |
|
{ |
|
Yii::trace(get_class($this) . '.deleteAllByAttributes()', 'system.db.ar.ActiveRecord'); |
|
$builder = $this->getCommandBuilder(); |
|
$table = $this->getTableSchema(); |
|
$criteria = $builder->createColumnCriteria($table, $attributes, $condition, $params); |
|
$command = $builder->createDeleteCommand($table, $criteria); |
|
return $command->execute(); |
|
} |
|
|
|
/** |
|
* Creates an active record with the given attributes. |
|
* This method is internally used by the find methods. |
|
* @param array $attributes attribute values (column name=>column value) |
|
* @param boolean $callAfterFind whether to call {@link afterFind} after the record is populated. |
|
* This parameter is added in version 1.0.3. |
|
* @return ActiveRecord the newly created active record. The class of the object is the same as the model class. |
|
* Null is returned if the input data is false. |
|
*/ |
|
public function populateRecord($attributes, $callAfterFind = true) |
|
{ |
|
if ($attributes !== false) |
|
{ |
|
$record = $this->instantiate($attributes); |
|
$record->setScenario('update'); |
|
$record->init(); |
|
$md = $record->getMetaData(); |
|
foreach ($attributes as $name => $value) |
|
{ |
|
if (property_exists($record, $name)) |
|
$record->$name = $value; |
|
elseif (isset($md->columns[$name])) |
|
$record->_attributes[$name] = $value; |
|
} |
|
$record->_pk = $record->getPrimaryKey(); |
|
$record->attachBehaviors($record->behaviors()); |
|
if ($callAfterFind) |
|
$record->afterFind(); |
|
return $record; |
|
} else |
|
return null; |
|
} |
|
|
|
/** |
|
* Creates a list of active records based on the input data. |
|
* This method is internally used by the find methods. |
|
* @param array $data list of attribute values for the active records. |
|
* @param boolean $callAfterFind whether to call {@link afterFind} after each record is populated. |
|
* This parameter is added in version 1.0.3. |
|
* @param string $index the name of the attribute whose value will be used as indexes of the query result array. |
|
* If null, it means the array will be indexed by zero-based integers. |
|
* @return array list of active records. |
|
*/ |
|
public function populateRecords($data, $callAfterFind = true, $index = null) |
|
{ |
|
$records = array(); |
|
foreach ($data as $attributes) |
|
{ |
|
if (($record = $this->populateRecord($attributes, $callAfterFind)) !== null) |
|
{ |
|
if ($index === null) |
|
$records[] = $record; |
|
else |
|
$records[$record->$index] = $record; |
|
} |
|
} |
|
return $records; |
|
} |
|
|
|
/** |
|
* Creates an active record instance. |
|
* This method is called by {@link populateRecord} and {@link populateRecords}. |
|
* You may override this method if the instance being created |
|
* depends the attributes that are to be populated to the record. |
|
* For example, by creating a record based on the value of a column, |
|
* you may implement the so-called single-table inheritance mapping. |
|
* @param array $attributes list of attribute values for the active records. |
|
* @return ActiveRecord the active record |
|
*/ |
|
protected function instantiate($attributes) |
|
{ |
|
$class = get_class($this); |
|
$model = new $class(null); |
|
return $model; |
|
} |
|
|
|
/** |
|
* Returns whether there is an element at the specified offset. |
|
* This method is required by the interface ArrayAccess. |
|
* @param mixed $offset the offset to check on |
|
* @return boolean |
|
*/ |
|
public function offsetExists($offset) |
|
{ |
|
return $this->__isset($offset); |
|
} |
|
} |
|
|
|
|
|
/** |
|
* CBaseActiveRelation is the base class for all active relations. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
*/ |
|
class CBaseActiveRelation extends CComponent |
|
{ |
|
/** |
|
* @var string name of the related object |
|
*/ |
|
public $name; |
|
/** |
|
* @var string name of the related active record class |
|
*/ |
|
public $className; |
|
/** |
|
* @var string the foreign key in this relation |
|
*/ |
|
public $foreignKey; |
|
/** |
|
* @var mixed list of column names (an array, or a string of names separated by commas) to be selected. |
|
* Do not quote or prefix the column names unless they are used in an expression. |
|
* In that case, you should prefix the column names with 'relationName.'. |
|
*/ |
|
public $select = '*'; |
|
/** |
|
* @var string WHERE clause. For {@link CActiveRelation} descendant classes, column names |
|
* referenced in the condition should be disambiguated with prefix 'relationName.'. |
|
*/ |
|
public $condition = ''; |
|
/** |
|
* @var array the parameters that are to be bound to the condition. |
|
* The keys are parameter placeholder names, and the values are parameter values. |
|
*/ |
|
public $params = array(); |
|
/** |
|
* @var string GROUP BY clause. For {@link CActiveRelation} descendant classes, column names |
|
* referenced in this property should be disambiguated with prefix 'relationName.'. |
|
*/ |
|
public $group = ''; |
|
/** |
|
* @var string how to join with other tables. This refers to the JOIN clause in an SQL statement. |
|
* For example, <code>'LEFT JOIN users ON users.id=authorID'</code>. |
|
*/ |
|
public $join = ''; |
|
/** |
|
* @var string HAVING clause. For {@link CActiveRelation} descendant classes, column names |
|
* referenced in this property should be disambiguated with prefix 'relationName.'. |
|
*/ |
|
public $having = ''; |
|
/** |
|
* @var string ORDER BY clause. For {@link CActiveRelation} descendant classes, column names |
|
* referenced in this property should be disambiguated with prefix 'relationName.'. |
|
*/ |
|
public $order = ''; |
|
|
|
/** |
|
* Constructor. |
|
* @param string $name name of the relation |
|
* @param string $className name of the related active record class |
|
* @param string $foreignKey foreign key for this relation |
|
* @param array $options additional options (name=>value). The keys must be the property names of this class. |
|
*/ |
|
public function __construct($name, $className, $foreignKey, $options = array()) |
|
{ |
|
$this->name = $name; |
|
$this->className = $className; |
|
$this->foreignKey = $foreignKey; |
|
foreach ($options as $name => $value) |
|
$this->$name = $value; |
|
} |
|
|
|
/** |
|
* Merges this relation with a criteria specified dynamically. |
|
* @param array $criteria the dynamically specified criteria |
|
* @param boolean $fromScope whether the criteria to be merged is from scopes |
|
*/ |
|
public function mergeWith($criteria, $fromScope = false) |
|
{ |
|
if ($criteria instanceof CDbCriteria) |
|
$criteria = $criteria->toArray(); |
|
if (isset($criteria['select']) && $this->select !== $criteria['select']) |
|
{ |
|
if ($this->select === '*') |
|
$this->select = $criteria['select']; |
|
elseif ($criteria['select'] !== '*') |
|
{ |
|
$select1 = is_string($this->select) ? preg_split('/\s*,\s*/', trim($this->select), -1, PREG_SPLIT_NO_EMPTY) : $this->select; |
|
$select2 = is_string($criteria['select']) ? preg_split('/\s*,\s*/', trim($criteria['select']), -1, PREG_SPLIT_NO_EMPTY) : $criteria['select']; |
|
$this->select = array_merge($select1, array_diff($select2, $select1)); |
|
} |
|
} |
|
|
|
if (isset($criteria['condition']) && $this->condition !== $criteria['condition']) |
|
{ |
|
if ($this->condition === '') |
|
$this->condition = $criteria['condition']; |
|
elseif ($criteria['condition'] !== '') |
|
$this->condition = "( {$this->condition}) AND ( {$criteria['condition']})"; |
|
} |
|
|
|
if (isset($criteria['params']) && $this->params !== $criteria['params']) |
|
$this->params = array_merge($this->params, $criteria['params']); |
|
|
|
if (isset($criteria['order']) && $this->order !== $criteria['order']) |
|
{ |
|
if ($this->order === '') |
|
$this->order = $criteria['order']; |
|
elseif ($criteria['order'] !== '') |
|
$this->order = $criteria['order'] . ', ' . $this->order; |
|
} |
|
|
|
if (isset($criteria['group']) && $this->group !== $criteria['group']) |
|
{ |
|
if ($this->group === '') |
|
$this->group = $criteria['group']; |
|
elseif ($criteria['group'] !== '') |
|
$this->group .= ', ' . $criteria['group']; |
|
} |
|
|
|
if (isset($criteria['join']) && $this->join !== $criteria['join']) |
|
{ |
|
if ($this->join === '') |
|
$this->join = $criteria['join']; |
|
elseif ($criteria['join'] !== '') |
|
$this->join .= ' ' . $criteria['join']; |
|
} |
|
|
|
if (isset($criteria['having']) && $this->having !== $criteria['having']) |
|
{ |
|
if ($this->having === '') |
|
$this->having = $criteria['having']; |
|
elseif ($criteria['having'] !== '') |
|
$this->having = "( {$this->having}) AND ( {$criteria['having']})"; |
|
} |
|
} |
|
} |
|
|
|
|
|
/** |
|
* CStatRelation represents a statistical relational query. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
*/ |
|
class CStatRelation extends CBaseActiveRelation |
|
{ |
|
/** |
|
* @var string the statistical expression. Defaults to 'COUNT(*)', meaning |
|
* the count of child objects. |
|
*/ |
|
public $select = 'COUNT(*)'; |
|
/** |
|
* @var mixed the default value to be assigned to those records that do not |
|
* receive a statistical query result. Defaults to 0. |
|
*/ |
|
public $defaultValue = 0; |
|
|
|
/** |
|
* Merges this relation with a criteria specified dynamically. |
|
* @param array $criteria the dynamically specified criteria |
|
* @param boolean $fromScope whether the criteria to be merged is from scopes |
|
*/ |
|
public function mergeWith($criteria, $fromScope = false) |
|
{ |
|
if ($criteria instanceof CDbCriteria) |
|
$criteria = $criteria->toArray(); |
|
parent::mergeWith($criteria, $fromScope); |
|
|
|
if (isset($criteria['defaultValue'])) |
|
$this->defaultValue = $criteria['defaultValue']; |
|
} |
|
} |
|
|
|
|
|
/** |
|
* CActiveRelation is the base class for representing active relations that bring back related objects. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class CActiveRelation extends CBaseActiveRelation |
|
{ |
|
/** |
|
* @var string join type. Defaults to 'LEFT OUTER JOIN'. |
|
*/ |
|
public $joinType = 'LEFT OUTER JOIN'; |
|
/** |
|
* @var string ON clause. The condition specified here will be appended to the joining condition using AND operator. |
|
*/ |
|
public $on = ''; |
|
/** |
|
* @var string the alias for the table that this relation refers to. Defaults to null, meaning |
|
* the alias will be the same as the relation name. |
|
*/ |
|
public $alias; |
|
/** |
|
* @var string|array specifies which related objects should be eagerly loaded when this related object is lazily loaded. |
|
* For more details about this property, see {@link ActiveRecord::with()}. |
|
*/ |
|
public $with = array(); |
|
/** |
|
* @var boolean whether this table should be joined with the primary table. |
|
* When setting this property to be false, the table associated with this relation will |
|
* appear in a separate JOIN statement. |
|
* If this property is set true, then the corresponding table will ALWAYS be joined together |
|
* with the primary table, no matter the primary table is limited or not. |
|
* If this property is not set, the corresponding table will be joined with the primary table |
|
* only when the primary table is not limited. |
|
*/ |
|
public $together; |
|
/** |
|
* @var mixed scopes to apply |
|
* Can be set to the one of the following: |
|
* <ul> |
|
* <li>Single scope: 'scopes'=>'scopeName'.</li> |
|
* <li>Multiple scopes: 'scopes'=>array('scopeName1','scopeName2').</li> |
|
* </ul> |
|
*/ |
|
public $scopes; |
|
|
|
/** |
|
* Merges this relation with a criteria specified dynamically. |
|
* @param array $criteria the dynamically specified criteria |
|
* @param boolean $fromScope whether the criteria to be merged is from scopes |
|
*/ |
|
public function mergeWith($criteria, $fromScope = false) |
|
{ |
|
if ($criteria instanceof CDbCriteria) |
|
$criteria = $criteria->toArray(); |
|
if ($fromScope) |
|
{ |
|
if (isset($criteria['condition']) && $this->on !== $criteria['condition']) |
|
{ |
|
if ($this->on === '') |
|
$this->on = $criteria['condition']; |
|
elseif ($criteria['condition'] !== '') |
|
$this->on = "( {$this->on}) AND ( {$criteria['condition']})"; |
|
} |
|
unset($criteria['condition']); |
|
} |
|
|
|
parent::mergeWith($criteria); |
|
|
|
if (isset($criteria['joinType'])) |
|
$this->joinType = $criteria['joinType']; |
|
|
|
if (isset($criteria['on']) && $this->on !== $criteria['on']) |
|
{ |
|
if ($this->on === '') |
|
$this->on = $criteria['on']; |
|
elseif ($criteria['on'] !== '') |
|
$this->on = "( {$this->on}) AND ( {$criteria['on']})"; |
|
} |
|
|
|
if (isset($criteria['with'])) |
|
$this->with = $criteria['with']; |
|
|
|
if (isset($criteria['alias'])) |
|
$this->alias = $criteria['alias']; |
|
|
|
if (isset($criteria['together'])) |
|
$this->together = $criteria['together']; |
|
} |
|
} |
|
|
|
|
|
/** |
|
* CBelongsToRelation represents the parameters specifying a BELONGS_TO relation. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class CBelongsToRelation extends CActiveRelation |
|
{ |
|
} |
|
|
|
|
|
/** |
|
* CHasOneRelation represents the parameters specifying a HAS_ONE relation. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class CHasOneRelation extends CActiveRelation |
|
{ |
|
/** |
|
* @var string the name of the relation that should be used as the bridge to this relation. |
|
* Defaults to null, meaning don't use any bridge. |
|
*/ |
|
public $through; |
|
} |
|
|
|
|
|
/** |
|
* CHasManyRelation represents the parameters specifying a HAS_MANY relation. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class CHasManyRelation extends CActiveRelation |
|
{ |
|
/** |
|
* @var integer limit of the rows to be selected. It is effective only for lazy loading this related object. Defaults to -1, meaning no limit. |
|
*/ |
|
public $limit = -1; |
|
/** |
|
* @var integer offset of the rows to be selected. It is effective only for lazy loading this related object. Defaults to -1, meaning no offset. |
|
*/ |
|
public $offset = -1; |
|
/** |
|
* @var string the name of the column that should be used as the key for storing related objects. |
|
* Defaults to null, meaning using zero-based integer IDs. |
|
*/ |
|
public $index; |
|
/** |
|
* @var string the name of the relation that should be used as the bridge to this relation. |
|
* Defaults to null, meaning don't use any bridge. |
|
*/ |
|
public $through; |
|
|
|
/** |
|
* Merges this relation with a criteria specified dynamically. |
|
* @param array $criteria the dynamically specified criteria |
|
* @param boolean $fromScope whether the criteria to be merged is from scopes |
|
*/ |
|
public function mergeWith($criteria, $fromScope = false) |
|
{ |
|
if ($criteria instanceof CDbCriteria) |
|
$criteria = $criteria->toArray(); |
|
parent::mergeWith($criteria, $fromScope); |
|
if (isset($criteria['limit']) && $criteria['limit'] > 0) |
|
$this->limit = $criteria['limit']; |
|
|
|
if (isset($criteria['offset']) && $criteria['offset'] >= 0) |
|
$this->offset = $criteria['offset']; |
|
|
|
if (isset($criteria['index'])) |
|
$this->index = $criteria['index']; |
|
} |
|
} |
|
|
|
|
|
/** |
|
* CManyManyRelation represents the parameters specifying a MANY_MANY relation. |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class CManyManyRelation extends CHasManyRelation |
|
{ |
|
} |
|
|
|
|
|
/** |
|
* ActiveRecordMetaData represents the meta-data for an Active Record class. |
|
* |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class ActiveRecordMetaData |
|
{ |
|
/** |
|
* @var CDbTableSchema the table schema information |
|
*/ |
|
public $tableSchema; |
|
/** |
|
* @var array table columns |
|
*/ |
|
public $columns; |
|
/** |
|
* @var array list of relations |
|
*/ |
|
public $relations = array(); |
|
/** |
|
* @var array attribute default values |
|
*/ |
|
public $attributeDefaults = array(); |
|
|
|
private $_model; |
|
|
|
/** |
|
* Constructor. |
|
* @param ActiveRecord $model the model instance |
|
*/ |
|
public function __construct($model) |
|
{ |
|
$this->_model = $model; |
|
|
|
$tableName = $model->tableName(); |
|
if (($table = $model->getDbConnection()->getSchema()->getTable($tableName)) === null) |
|
throw new CDbException(Yii::t('yii', 'The table "{table}" for active record class "{class}" cannot be found in the database.', |
|
array('{class}' => get_class($model), '{table}' => $tableName))); |
|
if ($table->primaryKey === null) |
|
{ |
|
$table->primaryKey = $model->primaryKey(); |
|
if (is_string($table->primaryKey) && isset($table->columns[$table->primaryKey])) |
|
$table->columns[$table->primaryKey]->isPrimaryKey = true; |
|
elseif (is_array($table->primaryKey)) |
|
{ |
|
foreach ($table->primaryKey as $name) |
|
{ |
|
if (isset($table->columns[$name])) |
|
$table->columns[$name]->isPrimaryKey = true; |
|
} |
|
} |
|
} |
|
$this->tableSchema = $table; |
|
$this->columns = $table->columns; |
|
|
|
foreach ($table->columns as $name => $column) |
|
{ |
|
if (!$column->isPrimaryKey && $column->defaultValue !== null) |
|
$this->attributeDefaults[$name] = $column->defaultValue; |
|
} |
|
|
|
foreach ($model->relations() as $name => $config) |
|
{ |
|
$this->addRelation($name, $config); |
|
} |
|
} |
|
|
|
/** |
|
* Adds a relation. |
|
* |
|
* $config is an array with three elements: |
|
* relation type, the related active record class and the foreign key. |
|
* |
|
* @throws CDbException |
|
* @param string $name $name Name of the relation. |
|
* @param array $config $config Relation parameters. |
|
* @return void |
|
*/ |
|
public function addRelation($name, $config) |
|
{ |
|
if (isset($config[0], $config[1], $config[2])) // relation class, AR class, FK |
|
$this->relations[$name] = new $config[0]($name, $config[1], $config[2], array_slice($config, 3)); |
|
else |
|
throw new CDbException(Yii::t('yii', 'Active record "{class}" has an invalid configuration for relation "{relation}". It must specify the relation type, the related active record class and the foreign key.', array('{class}' => get_class($this->_model), '{relation}' => $name))); |
|
} |
|
|
|
/** |
|
* Checks if there is a relation with specified name defined. |
|
* |
|
* @param string $name $name Name of the relation. |
|
* @return boolean |
|
*/ |
|
public function hasRelation($name) |
|
{ |
|
return isset($this->relations[$name]); |
|
} |
|
|
|
/** |
|
* Deletes a relation with specified name. |
|
* |
|
* @param string $name $name |
|
* @return void |
|
*/ |
|
public function removeRelation($name) |
|
{ |
|
unset($this->relations[$name]); |
|
} |
|
}
|
|
|