1. sfWidgetFormSelect.class.php
  2. /**
 * sfWidgetFormSelect represents a select HTML tag.
 *
 * @package    symfony
 * @subpackage widget
 * @author     Fabien Potencier 
 * @version    SVN: $Id: sfWidgetFormSelect.class.php 23994 2009-11-15 22:55:24Z bschussek $
 */
  3. class sfWidgetFormSelect extends sfWidgetFormChoiceBase
  4. {
  5.   /**
  6.    * Constructor.
  7.    *
  8.    * Available options:
  9.    *
  10.    *  * choices:  An array of possible choices (required)
  11.    *  * multiple: true if the select tag must allow multiple selections
  12.    *
  13.    * @param array $options     An array of options
  14.    * @param array $attributes  An array of default HTML attributes
  15.    *
  16.    * @see sfWidgetFormChoiceBase
  17.    */
  18.   protected function configure($options = array(), $attributes = array())
  19.   {
  20.     parent::configure($options, $attributes);
  22.     $this->addOption('multiple', false);
  23.   }
  25.   /**
  26.    * @param  string $name        The element name
  27.    * @param  string $value       The value selected in this widget
  28.    * @param  array  $attributes  An array of HTML attributes to be merged with the default HTML attributes
  29.    * @param  array  $errors      An array of errors for the field
  30.    *
  31.    * @return string An HTML tag string
  32.    *
  33.    * @see sfWidgetForm
  34.    */
  35.   public function render($name, $value = null, $attributes = array(), $errors = array())
  36.   {
  37.     if ($this->getOption('multiple'))
  38.     {
  39.       $attributes['multiple'] = 'multiple';
  41.       if ('[]' != substr($name, -2))
  42.       {
  43.         $name .= '[]';
  44.       }
  45.     }
  47.     $choices = $this->getChoices();
  49.     return $this->renderContentTag('select', "\n".implode("\n", $this->getOptionsForSelect($value, $choices))."\n", array_merge(array('name' => $name), $attributes));
  50.   }
  52.   /**
  53.    * Returns an array of option tags for the given choices
  54.    *
  55.    * @param  string $value    The selected value
  56.    * @param  array  $choices  An array of choices
  57.    *
  58.    * @return array  An array of option tags
  59.    */
  60.   protected function getOptionsForSelect($value, $choices)
  61.   {
  62.     $mainAttributes = $this->attributes;
  63.     $this->attributes = array();
  65.     if (!is_array($value))
  66.     {
  67.       $value = array($value);
  68.     }
  70.     $value = array_map('strval', array_values($value));
  71.     $value_set = array_flip($value);
  73.     $options = array();
  74.     foreach ($choices as $key => $option)
  75.     {
  76.       if (is_array($option))
  77.       {
  78.         $options[] = $this->renderContentTag('optgroup', implode("\n", $this->getOptionsForSelect($value, $option)), array('label' => self::escapeOnce($key)));
  79.       }
  80.       else
  81.       {
  82.         $attributes = array('value' => self::escapeOnce($key));
  83.         if (isset($value_set[strval($key)]))
  84.         {
  85.           $attributes['selected'] = 'selected';
  86.         }
  88.         $options[] = $this->renderContentTag('option', self::escapeOnce($option), $attributes);
  89.       }
  90.     }
  92.     $this->attributes = $mainAttributes;
  94.     return $options;
  95.   }
  96. }
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