вы можете решить ее, переопределив функцию Run CI_Form_Validation
скопируйте эту функцию в класс, который расширяет CI_Form_Validation.
Эта функция переопределит функцию родительского класса.Здесь я добавил только дополнительную проверку, которая может обрабатывать файл также
/**
* Run the Validator
*
* This function does all the work.
*
* @access public
* @return bool
*/
function run($group = '') {
// Do we even have any data to process? Mm?
if (count($_POST) == 0) {
return FALSE;
}
// Does the _field_data array containing the validation rules exist?
// If not, we look to see if they were assigned via a config file
if (count($this->_field_data) == 0) {
// No validation rules? We're done...
if (count($this->_config_rules) == 0) {
return FALSE;
}
// Is there a validation rule for the particular URI being accessed?
$uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group;
if ($uri != '' AND isset($this->_config_rules[$uri])) {
$this->set_rules($this->_config_rules[$uri]);
} else {
$this->set_rules($this->_config_rules);
}
// We're we able to set the rules correctly?
if (count($this->_field_data) == 0) {
log_message('debug', "Unable to find validation rules");
return FALSE;
}
}
// Load the language file containing error messages
$this->CI->lang->load('form_validation');
// Cycle through the rules for each field, match the
// corresponding $_POST or $_FILES item and test for errors
foreach ($this->_field_data as $field => $row) {
// Fetch the data from the corresponding $_POST or $_FILES array and cache it in the _field_data array.
// Depending on whether the field name is an array or a string will determine where we get it from.
if ($row['is_array'] == TRUE) {
if (isset($_FILES[$field])) {
$this->_field_data[$field]['postdata'] = $this->_reduce_array($_FILES, $row['keys']);
} else {
$this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']);
}
} else {
if (isset($_POST[$field]) AND $_POST[$field] != "") {
$this->_field_data[$field]['postdata'] = $_POST[$field];
} else if (isset($_FILES[$field]) AND $_FILES[$field] != "") {
$this->_field_data[$field]['postdata'] = $_FILES[$field];
}
}
$this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']);
}
// Did we end up with any errors?
$total_errors = count($this->_error_array);
if ($total_errors > 0) {
$this->_safe_form_data = TRUE;
}
// Now we need to re-set the POST data with the new, processed data
$this->_reset_post_array();
// No errors, validation passes!
if ($total_errors == 0) {
return TRUE;
}
// Validation fails
return FALSE;
}