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<?php |
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namespace SoftDelete\Model\Table; |
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use Cake\ORM\RulesChecker; |
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use Cake\Datasource\EntityInterface; |
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use Cake\Utility\Hash; |
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use SoftDelete\Error\MissingColumnException; |
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use SoftDelete\ORM\Query; |
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trait SoftDeleteTrait |
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{ |
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/** |
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* @var boolean |
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*/ |
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protected $_findWithDeleted; |
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/** |
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* Get the configured deletion field |
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* |
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* @return string |
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* @throws \SoftDelete\Error\MissingFieldException |
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*/ |
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public function ensureSoftDeleteFieldExists() |
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{ |
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$callable = [$this, 'getSoftDeleteField']; |
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if (!is_callable($callable)) { |
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throw new \BadMethodCallException(); |
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} |
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$field = call_user_func($callable); |
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if ($this->getSchema()->getColumn($field) === null) { |
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throw new MissingColumnException( |
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__('Configured field `{0}` is missing from the table `{1}`.', |
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$field, |
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$this->getAlias() |
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) |
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); |
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} |
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return $field; |
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} |
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public function query() |
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{ |
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return new Query($this->getConnection(), $this); |
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} |
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/** |
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* Perform the delete operation. |
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* |
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* Will soft delete the entity provided. Will remove rows from any |
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* dependent associations, and clear out join tables for BelongsToMany associations. |
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* |
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* @param \Cake\DataSource\EntityInterface $entity The entity to soft delete. |
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* @param \ArrayObject $options The options for the delete. |
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* @throws \InvalidArgumentException if there are no primary key values of the |
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* passed entity |
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* @return bool success |
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*/ |
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protected function _processDelete($entity, $options) |
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{ |
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if ($entity->isNew()) { |
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return false; |
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} |
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$primaryKey = (array)$this->getPrimaryKey(); |
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if (!$entity->has($primaryKey)) { |
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$msg = 'Deleting requires all primary key values.'; |
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throw new \InvalidArgumentException($msg); |
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} |
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if ($options['checkRules'] && !$this->checkRules($entity, RulesChecker::DELETE, $options)) { |
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return false; |
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} |
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$event = $this->dispatchEvent('Model.beforeDelete', [ |
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'entity' => $entity, |
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'options' => $options |
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]); |
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if ($event->isStopped()) { |
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return $event->result; |
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} |
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$this->_associations->cascadeDelete( |
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$entity, |
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['_primary' => false] + $options->getArrayCopy() |
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); |
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$query = $this->query(); |
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$conditions = (array)$entity->extract($primaryKey); |
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$statement = $query->update() |
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->set([$this->ensureSoftDeleteFieldExists() => $this->getSoftDeleteValue()]) |
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->where($conditions) |
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->execute(); |
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$success = $statement->rowCount() > 0; |
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if (!$success) { |
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return $success; |
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} |
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$this->dispatchEvent('Model.afterDelete', [ |
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'entity' => $entity, |
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'options' => $options |
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]); |
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return $success; |
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} |
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/** |
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* Soft deletes all records matching `$conditions`. |
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* @return int number of affected rows. |
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*/ |
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public function deleteAll($conditions) |
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{ |
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$query = $this->query() |
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->update() |
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->set([$this->ensureSoftDeleteFieldExists() => $this->getSoftDeleteValue()]) |
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->where($conditions); |
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$statement = $query->execute(); |
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$statement->closeCursor(); |
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return $statement->rowCount(); |
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} |
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/** |
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* Hard deletes the given $entity. |
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* @return bool true in case of success, false otherwise. |
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*/ |
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public function hardDelete(EntityInterface $entity) |
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{ |
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if (!$this->delete($entity)) { |
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return false; |
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} |
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$primaryKey = (array)$this->getPrimaryKey(); |
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$query = $this->query(); |
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$conditions = (array)$entity->extract($primaryKey); |
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$statement = $query->delete() |
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->where($conditions) |
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->execute(); |
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$success = $statement->rowCount() > 0; |
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if (!$success) { |
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return $success; |
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} |
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return $success; |
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} |
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/** |
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* Hard deletes all records that were soft deleted before a given date. |
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* @param $conditions |
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* @return int number of affected rows. |
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*/ |
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public function hardDeleteAll($conditions) |
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{ |
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$conditions = Hash::merge($conditions, ['NOT' => [$this->getActiveExpression()]]); |
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$query = $this->query() |
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->delete() |
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->where($conditions); |
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$statement = $query->execute(); |
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$statement->closeCursor(); |
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return $statement->rowCount(); |
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} |
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/** |
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* Restore a soft deleted entity into an active state. |
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* @param EntityInterface $entity Entity to be restored. |
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* @return bool true in case of success, false otherwise. |
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*/ |
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public function restore(EntityInterface $entity) |
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{ |
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$softDeleteField = $this->ensureSoftDeleteFieldExists(); |
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$entity->$softDeleteField = $this->getRestoreValue(); |
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return $this->save($entity); |
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} |
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/** |
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* @param bool $enable |
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*/ |
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public function enableFindWithDeleted($enable = true) |
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{ |
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$this->_findWithDeleted = (bool)$enable; |
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} |
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/** |
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* @return bool |
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*/ |
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public function findWithDeleted() |
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{ |
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return $this->_findWithDeleted; |
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} |
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/** |
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* @return array|string |
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*/ |
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public function getActiveExpression() |
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{ |
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$aliasedField = $this->aliasField($this->ensureSoftDeleteFieldExists()); |
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$activeValue = $this->getRestoreValue(); |
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if ($activeValue === null) { |
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return $aliasedField . ' IS NULL'; |
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} |
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return [$aliasedField => $activeValue]; |
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} |
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} |
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