/**
* Renders the widget.
*
* @param string $name The element name
* @param string $value The value selected in this widget
* @param array $attributes An array of HTML attributes to be merged with the default HTML attributes
* @param array $errors An array of errors for the field
*
* @return string An HTML tag string
*
* @see sfWidgetForm
*/
public function render($name, $value = null, $attributes = array(), $errors = array())
{
if (is_null($value)) {
$value = array();
}
$choices = $this->getOption('choices');
if ($choices instanceof sfCallable) {
$choices = $choices->call();
}
$associated = array();
$unassociated = array();
if (!is_array($value)) {
$value = array($value);
}
foreach ($choices as $key => $option) {
if (in_array(strval($key), $value)) {
$associated[$key] = $option;
} else {
$unassociated[$key] = $option;
}
}
$size = isset($attributes['size']) ? $attributes['size'] : (isset($this->attributes['size']) ? $this->attributes['size'] : 10);
$id = $this->generateId($name);
$error_id = 'error_' . $id;
// The two select boxes
$associatedWidget = new sfWidgetFormSelect(array('multiple' => true, 'choices' => $associated), array('size' => $size, 'class' => $this->getOption('class_select') . '-selected'));
$unassociatedWidget = new sfWidgetFormSelect(array('multiple' => true, 'choices' => $unassociated), array('size' => $size, 'class' => $this->getOption('class_select')));
// The input box used to filter content of unassociated select box
$filterWidget = new sfWidgetFormInputText(array(), array('class' => $this->getOption('filter_class')));
// Options to be passed to the renderTag of reset filter image
$filterResetOptions = array('src' => '/images/remove.png', 'id' => 'filter_' . $id . "_clear", 'class' => 'filter_clear', 'alt' => __('Reset filter'), 'title' => __('Reset filter'));
$addOptionHTML = '';
// If add of a value in distant table is possible and activated
if ($this->getOption('add_active')) {
// Define the add value input box
$addOptionWidget = new sfWidgetFormInputText(array(), array('id' => 'add_' . $id, 'class' => $this->getOption('add_class')));
$addOptionWidget->setLabel(__('Add new value:'));
// Options to be passed to the renderTag of add option image
$addImageOptions = array('src' => '/images/add_green.png', 'id' => 'add_' . $id . '_image', 'class' => 'add_option', 'alt' => __('Add value'), 'title' => __('Add value'));
// Options to be passed to the timer displayed while tryin' to insert a value
$addTimerImageOptions = array('src' => '/images/loader.gif', 'id' => 'add_' . $id . '_loader', 'style' => 'display:none;');
$addLinkOptions = array('id' => 'add_' . $id . '_link', 'class' => 'add_option', 'href' => url_for($this->getOption('add_url')));
$addOptionHTML = $this->renderContentTag('label', $addOptionWidget->getLabel(), array('for' => 'add_' . $id)) . $addOptionWidget->render('add_' . $name) . $this->renderContentTag('a', $this->renderTag('img', $addImageOptions), $addLinkOptions) . $this->renderTag('img', $addTimerImageOptions);
}
return strtr($this->getOption('template'), array('%class%' => $this->getOption('class'), '%class_select%' => $this->getOption('class_select'), '%id%' => $id, '%label_associated%' => $this->getOption('label_associated'), '%label_unassociated%' => $this->getOption('label_unassociated'), '%associate%' => sprintf('<a href="#" id="associate_' . $id . '">%s</a>', $this->getOption('associate')), '%unassociate%' => sprintf('<a href="#" id="unassociate_' . $id . '">%s</a>', $this->getOption('unassociate')), '%associated%' => $associatedWidget->render($name), '%unassociated%' => $unassociatedWidget->render('unassociated_' . $name), '%filter%' => $filterWidget->render('filter_' . $name), '%filter_reset%' => $this->renderTag('img', $filterResetOptions), '%add_option%' => $addOptionHTML, '%error_id%' => $error_id));
}
