Source of file LazyChoiceList.php
Size: 3,224 Bytes - Last Modified: 2013-07-17T08:22:21+02:00
/home/theseer/Downloads/Symfony/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/ChoiceList/LazyChoiceList.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150 | <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Form\Extension\Core\ChoiceList; use Symfony\Component\Form\Exception\InvalidArgumentException; /** * A choice list that is loaded lazily * * This list loads itself as soon as any of the getters is accessed for the * first time. You should implement loadChoiceList() in your child classes, * which should return a ChoiceListInterface instance. * * @author Bernhard Schussek <bschussek@gmail.com> */ abstract class LazyChoiceList implements ChoiceListInterface { /** * The loaded choice list * * @var ChoiceListInterface */ private $choiceList; /** * {@inheritdoc} */ public function getChoices() { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getChoices(); } /** * {@inheritdoc} */ public function getValues() { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getValues(); } /** * {@inheritdoc} */ public function getPreferredViews() { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getPreferredViews(); } /** * {@inheritdoc} */ public function getRemainingViews() { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getRemainingViews(); } /** * {@inheritdoc} */ public function getChoicesForValues(array $values) { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getChoicesForValues($values); } /** * {@inheritdoc} */ public function getValuesForChoices(array $choices) { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getValuesForChoices($choices); } /** * {@inheritdoc} */ public function getIndicesForChoices(array $choices) { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getIndicesForChoices($choices); } /** * {@inheritdoc} */ public function getIndicesForValues(array $values) { if (!$this->choiceList) { $this->load(); } return $this->choiceList->getIndicesForValues($values); } /** * Loads the choice list * * Should be implemented by child classes. * * @return ChoiceListInterface The loaded choice list */ abstract protected function loadChoiceList(); private function load() { $choiceList = $this->loadChoiceList(); if (!$choiceList instanceof ChoiceListInterface) { throw new InvalidArgumentException(sprintf('loadChoiceList() should return a ChoiceListInterface instance. Got %s', gettype($choiceList))); } $this->choiceList = $choiceList; } } |