/**
* Return field value
*
* @return mixed
*/
public function getValue()
{
$result = $value = parent::getValue();
$options = $this->getOptions();
if (!(isset($value) && isset($options[$value]))) {
$value = array_keys($options);
$result = array_shift($value);
}
return $result;
}
/**
* getOptions
*
* @return array
*/
protected function getOptions()
{
$list = parent::getOptions();
$list += $this->getCategories();
if ($this->getParam(static::PARAM_DISPLAY_ROOT_CATEGORY)) {
$list = array($this->getRootCategoryId() => static::t('Root category')) + $list;
}
if ($this->getParam(static::PARAM_DISPLAY_ANY_CATEGORY)) {
$list = array(static::t('Any category')) + $list;
}
return $list;
}
/**
* Get common attributes
*
* @return array
*/
protected function getCommonAttributes()
{
$list = parent::getCommonAttributes();
$list['name'] .= '[]';
return $list;
}
/**
* Assemble classes
*
* @param array $classes Classes
*
* @return array
*/
protected function assembleClasses(array $classes)
{
$classes = parent::assembleClasses($classes);
$classes[] = 'multiple-selector';
return $classes;
}