public function validate_submitted_fields()
{
$fields = !empty($this->_data['additional_fields']) ? $this->_data['additional_fields'] : array();
if (empty($fields)) {
return false;
}
foreach ($fields as $field) {
if (empty($field['required'])) {
continue;
}
$name = $this->_to_clean_name($field['label']);
if (empty($_POST[$name])) {
$this->_core->json_die($name);
}
}
}
