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<?php |
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namespace Maslosoft\Mangan\Abstracts; |
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use Maslosoft\Mangan\Document; |
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use Maslosoft\Mangan\Interfaces\Criteria\DecoratableInterface; |
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use Maslosoft\Mangan\Interfaces\CriteriaAwareInterface; |
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use Maslosoft\Mangan\Interfaces\CriteriaInterface; |
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use Maslosoft\Mangan\Interfaces\ModelAwareInterface; |
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use Maslosoft\Mangan\Interfaces\ScopeManagerInterface; |
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use Maslosoft\Mangan\Interfaces\WithCriteriaInterface; |
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use Maslosoft\Mangan\Traits\ModelAwareTrait; |
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/** |
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* Base class for implementing scope managers |
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* |
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* @see ScopeManagerInterface |
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* @author Piotr Maselkowski <pmaselkowski at gmail.com> |
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*/ |
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abstract class AbstractScopeManager implements ModelAwareInterface |
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{ |
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use ModelAwareTrait; |
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/** |
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* |
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* @var CriteriaInterface |
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*/ |
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private $criteria = null; |
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/** |
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* Returns the declaration of named scopes. |
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* A named scope represents a query criteria that can be chained together with |
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* other named scopes and applied to a query. This method should be overridden |
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* by child classes to declare named scopes for the particular document classes. |
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* For example, the following code declares two named scopes: 'recently' and |
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* 'published'. |
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* <pre> |
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* return array( |
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* 'published'=>array( |
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* 'conditions'=>array( |
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* 'status'=>array('==', 1), |
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* ), |
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* ), |
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* 'recently'=>array( |
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* 'sort'=>array('create_time'=>Criteria::SortDesc), |
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* 'limit'=>5, |
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* ), |
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* ); |
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* </pre> |
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* If the above scopes are declared in a 'Post' model, we can perform the following |
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* queries: |
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* <pre> |
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* $posts=Post::model()->published()->findAll(); |
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* $posts=Post::model()->published()->recently()->findAll(); |
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* $posts=Post::model()->published()->published()->recently()->find(); |
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* </pre> |
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* |
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* @return array the scope definition. The array keys are scope names; the array |
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* values are the corresponding scope definitions. Each scope definition is represented |
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* as an array whose keys must be properties of {@link Criteria}. |
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* @since v1.0 |
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*/ |
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public function scopes() |
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{ |
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return []; |
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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 mongo criteria. This will be used as the parameter to the constructor |
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* of {@link Criteria}. |
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* @since v1.2.2 |
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*/ |
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public function defaultScope() |
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{ |
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return []; |
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} |
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/** |
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* Resets all scopes and criteria applied including default scope. |
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* |
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* @return Document |
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* @since v1.0 |
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*/ |
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public function resetScope() |
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{ |
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$this->criteria = $this->getNewCriteria(); |
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return $this; |
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} |
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/** |
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* Apply scopes to criteria, will create criteria object if not provided and pass it by reference |
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* @param CriteriaInterface|array|null $criteria |
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* @return CriteriaInterface |
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*/ |
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public function apply(&$criteria = null) |
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{ |
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if (null === $criteria) |
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{ |
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return $this->getModelCriteria(); |
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} |
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elseif (is_array($criteria)) |
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{ |
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$criteria = $this->getNewCriteria($criteria); |
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} |
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$criteria->mergeWith($this->criteria); |
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$criteria->mergeWith($this->getModelCriteria()); |
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if ($criteria instanceof DecoratableInterface) |
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{ |
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$criteria->decorateWith($this->getModel()); |
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} |
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return $criteria; |
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} |
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public function reset() |
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{ |
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$this->criteria = $this->getNewCriteria(); |
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return $this; |
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} |
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protected function getModelCriteria() |
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{ |
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$criteria = null; |
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if ($this->model instanceof WithCriteriaInterface) |
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{ |
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$criteria = $this->model->getDbCriteria(); |
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} |
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elseif ($this->model instanceof CriteriaAwareInterface) |
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{ |
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$criteria = $this->model->getCriteria(); |
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} |
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if (empty($criteria)) |
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{ |
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return $this->getNewCriteria(); |
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} |
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return $criteria; |
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} |
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abstract public function getNewCriteria($criteria = null); |
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} |
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Maslosoft /
Mangan
