public function validate($storeDataInSession = true)
{
$isValid = true;
$this->errorMessage = $this->beforeErrorMessages;
// automatically validate form key
$formKey = new FormKey();
if (isset($this->data['formKey']) && !$formKey->isValid()) {
$this->addErrorMessage('Form Key', 'was missing or incorrect. Please try again');
$isValid = false;
} else {
// process all rules
foreach ($this->rules as $name => $rules) {
$rules = explode('|', $rules);
$display = $name;
if (isset($this->display[$name])) {
$display = $this->display[$name];
}
$value = '';
if (isset($this->data[$name])) {
$value = $this->data[$name];
}
if (($key = array_search('optional', $rules)) !== false) {
if ($value === '') {
// this field is optional and it has no value, so the
// validation is complete
continue;
}
unset($rules[$key]);
// no need to check optional again
}
$isFieldValid = true;
foreach ($rules as $rule) {
$parameters = array();
if (($left = strpos($rule, '[')) !== false) {
$right = strrpos($rule, ']');
$parameters = trim(substr($rule, $left + 1, $right - $left - 1));
// range rules require two parameters
if (strpos(strtolower($rule), 'range') !== false) {
$parameters = explode(',', $parameters);
} else {
$parameters = array($parameters);
}
foreach ($parameters as $key => $parameter) {
$parameters[$key] = trim($parameter);
}
$rule = substr($rule, 0, $left);
}
$parameters[] = $display;
$parameters[] = $value;
$method = "{$rule}Callback";
if (call_user_func_array(array($this, $method), $parameters) === false) {
$isFieldValid = false;
}
}
$isValid = $isValid && $isFieldValid;
}
}
$this->errorMessage .= $this->afterErrorMessages;
if (!$isValid && $storeDataInSession === true) {
$this->storeFormData($this->data);
$this->storeErrorMessage($this->errorMessage);
}
return $isValid;
}
