| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Association.php 2963 2007-10-21 06:23:59Z Jonathan.Wage $ |
| 4 | * |
| 5 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 6 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 7 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 8 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 9 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 10 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 11 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 12 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 13 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 14 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 15 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 16 | * |
| 17 | * This software consists of voluntary contributions made by many individuals |
| 18 | * and is licensed under the LGPL. For more information, see |
| 19 | * <http://www.phpdoctrine.com>. |
| 20 | */ |
| 21 | Doctrine::autoload('Doctrine_Relation'); |
| 22 | /** |
| 23 | * Doctrine_Relation_Association this class takes care of association mapping |
| 24 | * (= many-to-many relationships, where the relationship is handled with an additional relational table |
| 25 | * which holds 2 foreign keys) |
| 26 | * |
| 27 | * |
| 28 | * @package Doctrine |
| 29 | * @subpackage Relation |
| 30 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 31 | * @link www.phpdoctrine.com |
| 32 | * @since 1.0 |
| 33 | * @version $Revision: 2963 $ |
| 34 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 35 | */ |
| 36 | class Doctrine_Relation_Association extends Doctrine_Relation |
| 37 | { |
| 38 | /** |
| 39 | * @return Doctrine_Table |
| 40 | */ |
| 41 | public function getAssociationFactory() |
| 42 | { |
| 43 | return $this->definition['refTable']; |
| 44 | } |
| 45 | public function getAssociationTable() |
| 46 | { |
| 47 | return $this->definition['refTable']; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * getRelationDql |
| 52 | * |
| 53 | * @param integer $count |
| 54 | * @return string |
| 55 | */ |
| 56 | public function getRelationDql($count, $context = 'record') |
| 57 | { |
| 58 | $component = $this->definition['refTable']->getComponentName(); |
| 59 | switch ($context) { |
| 60 | case "record": |
| 61 | $sub = substr(str_repeat("?, ", $count),0,-2); |
| 62 | $dql = 'FROM ' . $this->getTable()->getComponentName(); |
| 63 | $dql .= '.' . $component; |
| 64 | $dql .= ' WHERE ' . $this->getTable()->getComponentName() |
| 65 | . '.' . $component . '.' . $this->definition['local'] . ' IN (' . $sub . ')'; |
| 66 | break; |
| 67 | case "collection": |
| 68 | $sub = substr(str_repeat("?, ", $count),0,-2); |
| 69 | $dql = 'FROM ' . $component . '.' . $this->getTable()->getComponentName(); |
| 70 | $dql .= ' WHERE ' . $component . '.' . $this->definition['local'] . ' IN (' . $sub . ')'; |
| 71 | break; |
| 72 | } |
| 73 | |
| 74 | return $dql; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * fetchRelatedFor |
| 79 | * |
| 80 | * fetches a component related to given record |
| 81 | * |
| 82 | * @param Doctrine_Record $record |
| 83 | * @return Doctrine_Record|Doctrine_Collection |
| 84 | */ |
| 85 | public function fetchRelatedFor(Doctrine_Record $record) |
| 86 | { |
| 87 | $id = $record->getIncremented(); |
| 88 | if (empty($id) || ! $this->definition['table']->getAttribute(Doctrine::ATTR_LOAD_REFERENCES)) { |
| 89 | $coll = new Doctrine_Collection($this->getTable()); |
| 90 | } else { |
| 91 | $coll = Doctrine_Query::create()->parseQuery($this->getRelationDql(1))->execute(array($id)); |
| 92 | } |
| 93 | $coll->setReference($record, $this); |
| 94 | return $coll; |
| 95 | } |
| 96 | } |