tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * @param JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form. * @param JForm $form The form object for which the field is being tested. * * @return boolean True if the value is valid, false otherwise. * * @since 11.1 */ public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null) { // Get the possible field actions and the ones posted to validate them. $fieldActions = self::getFieldActions($element); $valueActions = self::getValueActions($value); // Make sure that all posted actions are in the list of possible actions for the field. foreach ($valueActions as $action) { if (!in_array($action, $fieldActions)) { return false; } } return true; } /** * Method to get the list of permission action names from the form field value. * * @param mixed $value The form field value to validate. * * @return array A list of permission action names from the form field value. * * @since 11.1 */ protected function getValueActions($value) { $actions = array(); // Iterate over the asset actions and add to the actions. foreach ((array) $value as $name => $rules) { $actions[] = $name; } return $actions; } /** * Method to get the list of possible permission action names for the form field. * * @param SimpleXMLElement $element The SimpleXMLElement object representing the tag for the * form field object. * * @return array A list of permission action names from the form field element definition. * * @since 11.1 */ protected function getFieldActions(SimpleXMLElement $element) { $actions = array(); // Initialise some field attributes. $section = $element['section'] ? (string) $element['section'] : ''; $component = $element['component'] ? (string) $element['component'] : ''; // Get the asset actions for the element. $elActions = JAccess::getActions($component, $section); // Iterate over the asset actions and add to the actions. foreach ($elActions as $item) { $actions[] = $item->name; } // Iterate over the children and add to the actions. foreach ($element->children() as $el) { if ($el->getName() == 'action') { $actions[] = (string) $el['name']; } } return $actions; } }