/**
* Method to filter the form data.
*
* @param array $data An array of field values to filter.
* @param string $group The dot-separated form group path on which to filter the fields.
*
* @return mixed boolean True on sucess.
* @since 1.6
*/
public function filter($data, $group = null)
{
// Make sure there is a valid GantryForm XML document.
if (!$this->xml instanceof GantrySimpleXMLElement) {
return false;
}
// Initialize variables.
$input = new GantryRegistry($data);
$output = new GantryRegistry();
// Get the fields for which to filter the data.
$fields = $this->findFieldsByGroup($group);
if (!$fields) {
// PANIC!
return false;
}
// Filter the fields.
foreach ($fields as $field) {
// Initialise variables.
$name = (string) $field['name'];
// Get the field groups for the element.
$attrs = $field->xpath('ancestor::fields[@name]/@name');
$groups = array_map('strval', $attrs ? $attrs : array());
$group = implode('.', $groups);
// Get the field value from the data input.
if ($group) {
// Filter the value if it exists.
if ($input->exists($group . '.' . $name)) {
$output->set($group . '.' . $name, $this->filterField($field, $input->get($group . '.' . $name, (string) $field['default'])));
}
} else {
// Filter the value if it exists.
if ($input->exists($name)) {
$output->set($name, $this->filterField($field, $input->get($name, (string) $field['default'])));
}
}
}
return $output->toArray();
}
/**
* @param $param_name
* @param $default
*
* @return mixed
*/
protected function _getParamValue($param_name, $default)
{
$original_param_name = $param_name;
$value = $default;
$exists = false;
if ($this->_params_reg->exists($param_name)) {
$exists = true;
}
// try forward dashes
if (!$exists && strstr($param_name, '-') !== false) {
$param_name_parts = explode('-', $param_name);
$parts_count = count($param_name_parts);
$dots = array();
for ($i = 0; $i < $parts_count; $i++) {
array_unshift($dots, array_pop($param_name_parts));
$param_name = implode('-', $param_name_parts) . '.' . implode('.', $dots);
if ($this->_params_reg->exists($param_name)) {
$exists = true;
break;
}
}
// try backwards dashes
if (!$exists) {
$param_name = $original_param_name;
$param_name_parts = explode('-', $param_name);
$parts_count = count($param_name_parts);
$dots = array();
for ($i = 0; $i < $parts_count; $i++) {
array_unshift($dots, array_pop($param_name_parts));
$param_name = implode('.', $param_name_parts) . '.' . implode('-', $dots);
if ($this->_params_reg->exists($param_name)) {
$exists = true;
break;
}
}
}
}
if ($exists) {
$value = $this->_params_reg->get($param_name, $default);
}
return $value;
}
