no display fail message from controller - json

Question

I need validate user's nickname when the gonna registre in my proyect:
My Controller
$inputData = Input::get('nickname');
parse_str($inputData);
$informacion = array('nickname' => $inputData);
$regla = array('nickname'=>'required|unique:usuarios|alpha_num|min:6|max:15');
if($request->ajax()){
$usuarios = Usuarios::Usuarios();
$validar = Validator::make($informacion,$regla);
if($validar->fails()){
return Response()->json(array(
'fail' => true,
'errors' => $validar->getMessageBag()->toArray()));
}
else{
return Response()->json(array('success' => true, "message" => "Nombre de Usuario Disponible"));
}
}
My Script
$( "#validar" ).click(function( event ) {
var dato = $('#nickname').val();
var route = $('#form-sign-up').attr('action');
var tipo = $('#form-sign-up').attr('method');
var token = $('#form-sign-up #token').val();
$.ajax({
url: route,
headers: {'X-CSRF-TOKEN': token},
type: tipo,
dataType: 'json',
data:{nickname: dato},})
.fail(function(data){
$('#nickname-msj').html(data.errors);
$('#nickname-msj').fadeIn();
})
.done(function(data) {
$('#nickname-msj').html(data.message);
$('#nickname-msj').fadeIn();
});
});
.done works, but .fails not, and i need display that information to my user, because so they can know what is the problem, if someone can help me will be great.
I am using Laravel 5.2
Thank you.

Answer 1

The fails function of Ajax is triggered with a code different from 200. So you can return
if($validar->fails()) {
return response()->json($arrayHere, 400); //HTTP 400 error for bad request
}
So, just basically add 400 after your array, inside of json() function. When you don't specify the code, it defaults to 200.
Maybe also change your ajax request ? Or not
$.ajax({
url: route,
headers: {'X-CSRF-TOKEN': token},
type: tipo,
dataType: 'json',
data:{
nickname: dato
},
success: function (data) {
console.log(data);
},
error: function (data) {
console.log('Error:', data);
}
});