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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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* (c) Fabien Potencier <fabien.potencier@symfony-project.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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/**
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* sfWidgetFormSelect represents a select HTML tag.
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*
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* @package symfony
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* @subpackage widget
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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* @version SVN: $Id: sfWidgetFormSelect.class.php 30762 2010-08-25 12:33:33Z fabien $
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*/
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class sfWidgetFormSelect extends sfWidgetFormChoiceBase
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{
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/**
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* Constructor.
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*
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* Available options:
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*
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* * choices: An array of possible choices (required)
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* * multiple: true if the select tag must allow multiple selections
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*
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* @param array $options An array of options
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* @param array $attributes An array of default HTML attributes
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*
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* @see sfWidgetFormChoiceBase
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*/
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protected function configure($options = array(), $attributes = array())
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{
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parent::configure($options, $attributes);
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$this->addOption('multiple', false);
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}
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/**
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* Renders the widget.
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*
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* @param string $name The element name
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* @param string $value The value selected in this widget
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* @param array $attributes An array of HTML attributes to be merged with the default HTML attributes
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* @param array $errors An array of errors for the field
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*
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* @return string An HTML tag string
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*
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* @see sfWidgetForm
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*/
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public function render($name, $value = null, $attributes = array(), $errors = array())
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{
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if ($this->getOption('multiple'))
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{
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$attributes['multiple'] = 'multiple';
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if ('[]' != substr($name, -2))
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{
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$name .= '[]';
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}
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}
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$choices = $this->getChoices();
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return $this->renderContentTag('select', "\n".implode("\n", $this->getOptionsForSelect($value, $choices))."\n", array_merge(array('name' => $name), $attributes));
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}
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/**
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* Returns an array of option tags for the given choices
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*
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* @param string $value The selected value
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* @param array $choices An array of choices
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*
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* @return array An array of option tags
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*/
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protected function getOptionsForSelect($value, $choices)
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{
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$mainAttributes = $this->attributes;
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$this->attributes = array();
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if (!is_array($value))
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{
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$value = array($value);
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}
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$value = array_map('strval', array_values($value));
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$value_set = array_flip($value);
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$options = array();
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foreach ($choices as $key => $option)
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{
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if (is_array($option))
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{
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$options[] = $this->renderContentTag('optgroup', implode("\n", $this->getOptionsForSelect($value, $option)), array('label' => self::escapeOnce($key)));
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}
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else
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{
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$attributes = array('value' => self::escapeOnce($key));
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if (isset($value_set[strval($key)]))
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{
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$attributes['selected'] = 'selected';
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}
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$options[] = $this->renderContentTag('option', self::escapeOnce($option), $attributes);
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}
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}
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$this->attributes = $mainAttributes;
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return $options;
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}
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}
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