public function process(Request $request)
{
// Ajax-validation is only possible, if the _formID was submitted (automatically done by the FormBuilder).
if (\Request::has('_formID')) {
// The FormBuilder should have saved the requestObject this form uses inside the session.
// We check, if it is there, and can continue only, if it is.
$sessionKeyForRequestObject = 'htmlBuilder.formBuilder.requestObjects.' . \Request::input('_formID');
if (Session::has($sessionKeyForRequestObject)) {
// Normally we assume a successful submission and return just an empty JSON-array.
$returnCode = 200;
$return = [];
// We instantiate the requestObject.
$formRequest = FormBuilderTools::getRequestObject(Session::get($sessionKeyForRequestObject));
// We instantiate a controller with the submitted request-data
// and the rules and messages from the requestObject.
$validator = Validator::make(\Request::all(), $formRequest->rules(), $formRequest->messages());
// Perform validation, extract error-messages for all fields on failure, put them inside a $return['errors']-array, and return status code 422.
if ($validator->fails()) {
$errors = [];
foreach (array_dot(\Request::all()) as $fieldName => $fieldValue) {
$fieldErrors = FormBuilderTools::extractErrorsForField($fieldName, $validator->errors()->getMessages(), \Request::all());
if (count($fieldErrors) > 0) {
$errors[FormBuilderTools::convertArrayFieldDotNotation2HtmlName($fieldName)] = $fieldErrors;
}
}
$return['errors'] = $errors;
$returnCode = 422;
}
return new JsonResponse($return, $returnCode);
}
}
}
/**
* Gets the error(s) of field $name from $errors.
* Furthermore: If it is the first element of an array (e.g. domainList.0.domainName),
* the errors of the array itself are also returned.
* For multidimensional arrays this works recursively.
* Example:
* This server-side request array:
* domainList => [
* 0 => [
* domainLabel => 'first-domain',
* domainPdo => 'at',
* ],
* 1 => [
* domainLabel => 'second-domain',
* domainPdo => 'at',
* ],
*
* Returns errors in the following structure:
*
* - Field 'domainList[0][domainLabel]' returns errors for:
* - domainList[0][domainLabel]
* - domainList[0]
* - domainList
* - Field 'domainList[0][domainPdo]' returns errors for:
* - domainList[0][domainPdo]
* - Field 'domainList[1][domainLabel]' returns errors for:
* - domainList[1][domainLabel]
* - domainList[1]
* - Field 'domainList[1][domainPdo]' returns errors for:
* - domainList[1][domainPdo]
*
* @param string $name: Name of the field (array-fields must be in dot-notation (e.g. "domainList.0.domainName"))
* @param array $errors: Array of all errors (in dot-notation)
* @param array $request: Array of full request (in dot-notation)
* @return array
*/
public static function extractErrorsForField($name = '', $errors = [], $request = [])
{
$return = [];
$isArray = false;
// Check, if the name is an array-key (e.g. "domainList.0.domainName").
if (strpos($name, '.') !== false) {
$isArray = true;
}
// If the field is the first element of an array,
// we also add errors regarding the array itself.
// (e.g. in case of a 'size:5' validation rule on the array itself)
if ($isArray) {
$arrayName = substr($name, 0, strrpos($name, '.'));
$arrayFieldKey = substr($name, strrpos($name, '.') + 1);
$addArrayErrors = true;
if (array_has($request, $arrayName) && strval(key(array_get($request, $arrayName))) !== $arrayFieldKey) {
$addArrayErrors = false;
}
if ($addArrayErrors) {
$return = array_merge(FormBuilderTools::extractErrorsForField($arrayName, $errors, $request), $return);
}
}
// Get the errors (if present) from $this->errors.
if (isset($errors[$name])) {
$return = array_merge($return, $errors[$name]);
}
return $return;
}
/**
* Gets the error(s) of a field currently stored in the FormBuilder-object.
* Furthermore: If it is the first element of an array (e.g. domainName[0]),
* the errors of the array itself are also returned.
* This even works for multidimensional arrays.
* Example:
* This server-side request array:
* domainList => [
* 0 => [
* domainLabel => 'first-domain',
* domainPdo => 'at',
* ],
* 1 => [
* domainLabel => 'second-domain',
* domainPdo => 'at',
* ],
*
* Returns errors in the following structure:
*
* - Field 'domainList[0][domainLabel]' returns errors for:
* - domainList[0][domainLabel]
* - domainList[0]
* - domainList
* - Field 'domainList[0][domainPdo]' returns errors for:
* - domainList[0][domainPdo]
* - Field 'domainList[1][domainLabel]' returns errors for:
* - domainList[1][domainLabel]
* - domainList[1]
* - Field 'domainList[1][domainPdo]' returns errors for:
* - domainList[1][domainPdo]
*
* @param string $name
* @return array
*/
public function getErrorsForField($name = '')
{
$errors = [];
if (count($this->errors) > 0) {
$errors = FormBuilderTools::extractErrorsForField(FormBuilderTools::convertArrayFieldHtmlName2DotNotation($name), $this->errors, Request::old());
}
return $errors;
}
