/**
* Method to test if a value is valid for a field.
*
* @param object $field The field to validate.
* @param array $values The values to validate.
* @return mixed Boolean on success, JException on error.
*/
protected function _isValid(&$field, $values)
{
$result = true;
// Get the validator type.
if ($type = (string) $field->attributes()->validate) {
// Get the validator class.
$class = 'JFormRule' . $type;
if (!class_exists($class)) {
jimport('joomla.filesystem.path');
// Attempt to load the rule file.
if ($file = JPath::find(JFormValidator::addRulePath(), $type . '.php')) {
require_once $file;
}
if (!class_exists($class)) {
return new JException(JText::sprintf('Libraries_Form_Validator_Rule_Not_Found', $type), 0, E_ERROR);
}
}
// Run the validator.
$rule = new $class();
$result = $rule->test($field, $values);
}
return $result;
}
/**
* Method to validate form data.
*
* Validation warnings will be pushed into JForm::_errors and should be
* retrieved with JForm::getErrors() when validate returns boolean false.
*
* @param array $data An array of field values to validate.
* @param string $limit An option group to limit the validation to.
* @return mixed Boolean on success, JException on error.
*/
public function validate($data, $limit = null)
{
$return = true;
$data = (array) $data;
// Check if the group exists.
if ($limit !== null && !isset($this->_groups[$limit])) {
// The group that was supposed to be filtered does not exist.
return new JException(JText::sprintf('LIBRARIES FORM VALIDATOR GROUP NOT FOUND', $limit), 0, E_ERROR);
}
// Get a validator object.
jimport('joomla.form.formvalidator');
$validator = new JFormValidator();
// Iterate through the groups.
foreach ($this->_groups as $group => $fields) {
// Filter if no group is specified or if the group matches the current group.
if ($limit === null || $limit !== null && $group === $limit) {
// If the group name matches the name of a group in the data and the value is not scalar, pass the group.
if (isset($data[$group]) && !is_scalar($data[$group]) && !is_resource($data[$group])) {
$results = $validator->validate($this->_groups[$group], $data[$group]);
} else {
// Run the validator over the group.
$results = $validator->validate($this->_groups[$group], $data);
}
// Check for a error.
if (JError::isError($results)) {
return new JException($results->getMessage(), 0, E_ERROR);
}
// Check the validation results.
if (count($results)) {
// Get the validation messages.
foreach ($results as $result) {
if (JError::isError($result) && $result->get('level') === E_WARNING) {
$this->setError($result);
$return = false;
}
}
}
}
}
return $return;
}
