/usr/share/php/Symfony/Component/Form/ChoiceList/View/ChoiceListView.php is in php-symfony-form 2.7.10-0ubuntu2.
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/*
* 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\ChoiceList\View;
/**
* Represents a choice list in templates.
*
* A choice list contains choices and optionally preferred choices which are
* displayed in the very beginning of the list. Both choices and preferred
* choices may be grouped in {@link ChoiceGroupView} instances.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class ChoiceListView
{
/**
* The choices.
*
* @var ChoiceGroupView[]|ChoiceView[]
*/
public $choices;
/**
* The preferred choices.
*
* @var ChoiceGroupView[]|ChoiceView[]
*/
public $preferredChoices;
/**
* Creates a new choice list view.
*
* @param ChoiceGroupView[]|ChoiceView[] $choices The choice views.
* @param ChoiceGroupView[]|ChoiceView[] $preferredChoices The preferred
* choice views.
*/
public function __construct(array $choices = array(), array $preferredChoices = array())
{
$this->choices = $choices;
$this->preferredChoices = $preferredChoices;
}
/**
* Returns whether a placeholder is in the choices.
*
* A placeholder must be the first child element, not be in a group and have an empty value.
*
* @return bool
*/
public function hasPlaceholder()
{
if ($this->preferredChoices) {
$firstChoice = reset($this->preferredChoices);
return $firstChoice instanceof ChoiceView && '' === $firstChoice->value;
}
$firstChoice = reset($this->choices);
return $firstChoice instanceof ChoiceView && '' === $firstChoice->value;
}
}
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