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67 lines
2.2 KiB
67 lines
2.2 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\redis; |
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use yii\db\ActiveRelationInterface; |
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use yii\db\ActiveRelationTrait; |
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/** |
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* ActiveRelation represents a relation between two Active Record classes. |
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* |
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* ActiveRelation instances are usually created by calling [[ActiveRecord::hasOne()]] and |
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* [[ActiveRecord::hasMany()]]. An Active Record class declares a relation by defining |
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* a getter method which calls one of the above methods and returns the created ActiveRelation object. |
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* |
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* A relation is specified by [[link]] which represents the association between columns |
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* of different tables; and the multiplicity of the relation is indicated by [[multiple]]. |
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* |
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* If a relation involves a pivot table, it may be specified by [[via()]] or [[viaTable()]] method. |
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* |
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* @author Carsten Brandt <mail@cebe.cc> |
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* @since 2.0 |
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*/ |
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class ActiveRelation extends ActiveQuery implements ActiveRelationInterface |
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{ |
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use ActiveRelationTrait; |
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/** |
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* Executes a script created by [[LuaScriptBuilder]] |
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* @param Connection $db the database connection used to execute the query. |
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* If this parameter is not given, the `db` application component will be used. |
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* @param string $type the type of the script to generate |
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* @param null $column |
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* @return array|bool|null|string |
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*/ |
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protected function executeScript($db, $type, $column=null) |
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{ |
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if ($this->primaryModel !== null) { |
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// lazy loading |
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if ($this->via instanceof self) { |
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// via pivot table |
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$viaModels = $this->via->findPivotRows([$this->primaryModel]); |
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$this->filterByModels($viaModels); |
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} elseif (is_array($this->via)) { |
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// via relation |
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/** @var ActiveRelation $viaQuery */ |
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list($viaName, $viaQuery) = $this->via; |
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if ($viaQuery->multiple) { |
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$viaModels = $viaQuery->all(); |
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$this->primaryModel->populateRelation($viaName, $viaModels); |
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} else { |
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$model = $viaQuery->one(); |
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$this->primaryModel->populateRelation($viaName, $model); |
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$viaModels = $model === null ? [] : [$model]; |
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} |
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$this->filterByModels($viaModels); |
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} else { |
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$this->filterByModels([$this->primaryModel]); |
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} |
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} |
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return parent::executeScript($db, $type, $column); |
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} |
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}
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