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Commitafd7bf8

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[Form] addedCallbackChoiceLoader
1 parente707760 commitafd7bf8

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3 files changed

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3 files changed

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‎src/Symfony/Component/Form/CHANGELOG.md‎

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CHANGELOG
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=========
33

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3.2.0
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-----
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* added`CallbackChoiceLoader`
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49
3.1.0
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-----
611

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespaceSymfony\Component\Form\ChoiceList\Loader;
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useSymfony\Component\Form\ChoiceList\ArrayChoiceList;
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/**
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* Loads an {@link ArrayChoiceList} instance from a callable returning an array of choices.
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*
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* @author Jules Pietri <jules@heahprod.com>
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*/
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class CallbackChoiceLoaderimplements ChoiceLoaderInterface
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{
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private$callback;
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/**
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* The loaded choice list.
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*
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* @var ArrayChoiceList
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*/
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private$choiceList;
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/**
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* @param callable $callback The callable returning an array of choices
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*/
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publicfunction__construct(callable$callback)
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{
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$this->callback =$callback;
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}
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/**
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* {@inheritdoc}
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*/
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publicfunctionloadChoiceList($value =null)
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{
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if (null !==$this->choiceList) {
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return$this->choiceList;
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}
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return$this->choiceList =newArrayChoiceList(call_user_func($this->callback),$value);
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}
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/**
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* {@inheritdoc}
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*/
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publicfunctionloadChoicesForValues(array$values,$value =null)
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{
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// Optimize
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if (empty($values)) {
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returnarray();
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}
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return$this->loadChoiceList($value)->getChoicesForValues($values);
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}
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/**
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* {@inheritdoc}
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*/
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publicfunctionloadValuesForChoices(array$choices,$value =null)
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{
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// Optimize
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if (empty($choices)) {
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returnarray();
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}
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return$this->loadChoiceList($value)->getValuesForChoices($choices);
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}
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}
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespaceSymfony\Component\Form\Tests\ChoiceList\Loader;
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useSymfony\Component\Form\ChoiceList\LazyChoiceList;
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useSymfony\Component\Form\ChoiceList\Loader\CallbackChoiceLoader;
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/**
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* @author Jules Pietri <jules@heahprod.com>
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*/
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class CallbackChoiceLoaderTestextends \PHPUnit_Framework_TestCase
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{
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/**
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* @var \Symfony\Component\Form\ChoiceList\Loader\CallbackChoiceLoader
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*/
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staticprivate$loader;
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/**
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* @var callable
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*/
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staticprivate$value;
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/**
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* @var array
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*/
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staticprivate$choices;
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/**
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* @var string[]
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*/
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staticprivate$choiceValues;
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/**
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* @var \Symfony\Component\Form\ChoiceList\LazyChoiceList
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*/
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staticprivate$lazyChoiceList;
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staticpublicfunctionsetUpBeforeClass()
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{
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self::$loader =newCallbackChoiceLoader(function() {
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returnself::$choices;
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});
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self::$value =function ($choice) {
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returnisset($choice->value) ?$choice->value :null;
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};
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self::$choices =array(
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(object)array('value' =>'choice_one'),
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(object)array('value' =>'choice_two'),
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);
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self::$choiceValues =array('choice_one','choice_two');
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self::$lazyChoiceList =newLazyChoiceList(self::$loader,self::$value);
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}
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publicfunctiontestLoadChoiceList()
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{
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$this->assertInstanceOf('\Symfony\Component\Form\ChoiceList\ChoiceListInterface',self::$loader->loadChoiceList(self::$value));
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}
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publicfunctiontestLoadChoiceListOnlyOnce()
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{
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$loadedChoiceList =self::$loader->loadChoiceList(self::$value);
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$this->assertSame($loadedChoiceList,self::$loader->loadChoiceList(self::$value));
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}
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publicfunctiontestLoadChoicesForValuesLoadsChoiceListOnFirstCall()
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{
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$this->assertSame(
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self::$loader->loadChoicesForValues(self::$choiceValues,self::$value),
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self::$lazyChoiceList->getChoicesForValues(self::$choiceValues),
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'Choice list should not be reloaded.'
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);
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}
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publicfunctiontestLoadValuesForChoicesLoadsChoiceListOnFirstCall()
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{
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$this->assertSame(
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self::$loader->loadValuesForChoices(self::$choices,self::$value),
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self::$lazyChoiceList->getValuesForChoices(self::$choices),
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'Choice list should not be reloaded.'
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);
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}
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staticpublicfunctiontearDownAfterClass()
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{
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self::$loader =null;
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self::$value =null;
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self::$choices =array();
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self::$choiceValues =array();
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self::$lazyChoiceList =null;
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}
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}

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