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<?php |
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/** |
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* Fwk |
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* |
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* Copyright (c) 2011-2012, Julien Ballestracci <[email protected]>. |
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* All rights reserved. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* PHP Version 5.3 |
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* |
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* @category Database |
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* @package Fwk\Db |
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* @author Julien Ballestracci <[email protected]> |
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* @copyright 2011-2012 Julien Ballestracci <[email protected]> |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://www.phpfwk.com |
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*/ |
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namespace Fwk\Db\Relations; |
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use Fwk\Db\Events\AbstractEntityEvent; |
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use Fwk\Db\Events\BeforeSaveEvent; |
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use Fwk\Db\Events\BeforeUpdateEvent; |
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use Fwk\Db\RelationInterface; |
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use Fwk\Db\Query; |
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use Fwk\Db\Accessor; |
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use Fwk\Db\Registry\Registry; |
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use Fwk\Db\Workers\SaveEntityWorker; |
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use Fwk\Db\Workers\DeleteEntityWorker; |
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use Fwk\Events\Dispatcher; |
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/** |
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* Represents a One --> One database relation. |
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* |
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* @category Relations |
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* @package Fwk\Db |
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* @author Julien Ballestracci <[email protected]> |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://www.phpfwk.com |
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*/ |
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class One2One extends AbstractRelation implements RelationInterface |
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{ |
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/** |
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* Prepares a Query to fetch this relation (only FETCH_EAGER) |
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* |
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* @param Query $query The query |
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* @param string $columnName Column name on the parent entity |
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* |
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* @return void |
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*/ |
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public function prepare(Query $query, $columnName) |
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{ |
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if ($this->isLazy()) { |
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return; |
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} |
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$this->columnName = $columnName; |
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$join = array( |
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'column' => $this->columnName, |
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'relation' => $this, |
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'skipped' => false, |
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'reference' => null, |
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'entity' => $this->getEntity() |
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); |
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$query->join( |
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$this->getTableName(), |
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$this->getLocal(), |
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$this->getForeign(), |
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Query::JOIN_LEFT, |
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$join |
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); |
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} |
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/** |
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* Fetches (if necessary) relation's entities |
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* |
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* @return One2One |
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*/ |
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public function fetch() |
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{ |
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if (!$this->fetched && $this->isActive()) { |
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$query = new Query(); |
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$query->entity($this->getEntity()); |
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$query->select() |
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->from($this->getTableName(), 'lazy') |
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->where('lazy.'. $this->getForeign() .'=?'); |
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$connect = $this->getConnection(); |
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$res = $connect->execute($query, array($this->parentRefs)); |
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$idKeys = $connect->table($this->getTableName()) |
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->getIdentifiersKeys(); |
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if (count($res) >= 1) { |
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$ids = array(); |
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$access = new Accessor($res[0]); |
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foreach ($idKeys as $key) { |
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$ids[$key] = $access->get($key); |
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} |
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parent::add($res[0], $ids); |
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} |
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$this->setFetched(true); |
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} |
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return $this; |
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} |
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/** |
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* Fetches and return the entity (or null) |
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* |
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* @return mixed |
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*/ |
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public function get() |
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{ |
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$this->fetch(); |
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foreach ($this->getRegistry()->getStore() as $entry) { |
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return $entry->getObject(); |
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} |
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return null; |
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} |
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/** |
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* Defines the $object as the One. |
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* |
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* If $object is null, the relation is canceled on the parent object |
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* |
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* @param mixed $object Entity |
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* |
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* @return void |
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*/ |
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public function set($object = null) |
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{ |
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if (null === $object) { |
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foreach ($this->getRegistry()->getStore() as $entry) { |
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$this->remove($entry->getObject()); |
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} |
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return; |
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} |
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parent::add($object); |
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} |
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/** |
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* Magic method to allow $parent->relation->propName; |
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* Returns value from the linked object. |
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* |
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* @param string $key Property/Column name |
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* |
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* @throws \RuntimeException if relation is empty |
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* @return mixed |
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*/ |
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public function __get($key) |
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{ |
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$obj = $this->get(); |
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if (!\is_object($obj)) { |
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throw new \RuntimeException('Empty relation'); |
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} |
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return Accessor::factory($obj)->get($key); |
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} |
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/** |
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* Magic method to allow $parent->relation->propName = "value" |
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* |
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* @param string $key Property/Column name |
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* @param mixed $value The value |
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* |
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* @return void |
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*/ |
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public function __set($key, $value) |
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{ |
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$obj = $this->get(); |
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if (!\is_object($obj)) { |
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throw new \RuntimeException('Empty relation'); |
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} |
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Accessor::factory($obj)->set($key, $value); |
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} |
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/** |
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* Magic method to allow isset($parent->relation->propName) |
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* |
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* @param string $key Property/Column name |
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* |
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* @return boolean |
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*/ |
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public function __isset($key) |
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{ |
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$obj = $this->fetch(); |
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if (!\is_object($obj)) { |
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throw new \RuntimeException('Empty relation'); |
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} |
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$test = Accessor::factory($obj)->get($key); |
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return ($test != false ? true : false); |
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} |
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/** |
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* Magic method to allow calling methods like $parent->relation->call() |
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* |
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* @param string $name Method name |
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* @param array $arguments Call arguments |
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* |
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* @return mixed |
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*/ |
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public function __call($name, $arguments) |
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{ |
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$obj = $this->get(); |
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if (!\is_object($obj)) { |
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throw new \RuntimeException('Empty relation'); |
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} |
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$access = new Accessor($obj); |
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try { |
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$access->getReflector()->getMethod($name); |
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return \call_user_func_array(array($obj, $name), $arguments); |
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} catch (\ReflectionException $e) { |
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throw new \RuntimeException( |
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sprintf( |
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'Unable to call method %s::%s(): %s', |
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get_class($obj), |
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$name, |
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$e->getMessage() |
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) |
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); |
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} |
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} |
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/** |
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* Defines a parent object (the other One) |
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* |
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* @param mixed $object The parent object |
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* @param Dispatcher $evd The related Events Dispatcher |
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* |
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* @return boolean |
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*/ |
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public function setParent($object, Dispatcher $evd) |
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{ |
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$return = parent::setParent($object, $evd); |
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if ($return === true) { |
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$evd->on(BeforeSaveEvent::EVENT_NAME, array($this, 'onBeforeParentSave')); |
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$evd->on(BeforeUpdateEvent::EVENT_NAME, array($this, 'onBeforeParentSave')); |
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} |
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return $return; |
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} |
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/** |
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* Listener executed when parent entity is saved |
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* |
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* @param AbstractEntityEvent $event Dispatched event |
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* |
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* @return void |
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*/ |
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public function onBeforeParentSave(AbstractEntityEvent $event) |
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{ |
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$connection = $event->getConnection(); |
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$parent = $event->getEntity(); |
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foreach ($this->getWorkersQueue() as $worker) { |
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$worker->setRegistry($this->registry); |
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$entity = $worker->getEntity(); |
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if ($worker instanceof SaveEntityWorker) { |
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$worker->execute($connection); |
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$current = Accessor::factory($entity)->get($this->foreign); |
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Accessor::factory($parent)->set($this->local, $current); |
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$this->getRegistry()->defineInitialValues( |
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$entity, |
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$connection, |
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$connection->table($this->tableName) |
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); |
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} |
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if ($worker instanceof DeleteEntityWorker) { |
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Accessor::factory($parent)->set($this->local, null); |
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$this->getRegistry()->remove($entity); |
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} |
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} |
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} |
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/** |
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* Returns an array of all entities in this relation |
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* |
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* @return array |
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*/ |
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public function toArray() |
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{ |
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$this->fetch(); |
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$final = array(); |
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$list = $this->getRegistry()->getStore(); |
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foreach ($list as $entry) { |
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if ($entry->getAction() == Registry::ACTION_DELETE) { |
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continue; |
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} |
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$final[] = $entry->getObject(); |
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} |
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return $final; |
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} |
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} |
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This check looks for a call to a parent method whose name is different than the method from which it is called.
Consider the following code:
The
getFirstName()
method in theSon
calls the wrong method in the parent class.