Laravel Nova - Can`t see validation error messages

Question

I`m working on a project with Nova dashboard. For some reason I can`t see validation error messages.

If there is an validation error, I can see that as an exception in browser console. But not in Nova UI.

I can see success message, if all fields of form are input correctly.

I`m new to Nova, can anyone help me to debug this issue? I mean I don`t know where to look for to figure out this issue

Error trace from browser:

{
    "errors":"Sorry, something went wrong.",
    "exception":"Illuminate\\Validation\\ValidationException",
    "message":"The given data was invalid.",
    "trace":[{
        "file":"\/home\/ausvacs\/public_html\/nova\/src\/PerformsValidation.php",
        "line":18,
        "function":"validate",
        "class":"Illuminate\\Validation\\Validator",
        "type":"->",
        "args":[]
    }]
}

Fields method of Agency nova model (Table name:agency):

public function fields(Request $request)
{
    return [
        ID::make()->sortable(),

        Text::make('Name')
            ->sortable()
            ->rules('required', 'string'),

    ];
}

Error on browser console:

Exception on browser network tab:

Can you please provide the code & screenshots for more details — Saumini Navaratnam, Nov 15 '18 at 04:48
I have added error trace and fields method of my Nova model. — Vineeth Vijayan, Nov 15 '18 at 05:45
Your Nova resource code looks ok. Can you check the exception stack trace in laravel log file. — Saumini Navaratnam, Nov 15 '18 at 05:58
I checked. Its looks like there is no entry in laravel.log for this issue. I tried updating Nova, but that also did\`t make any difference. — Vineeth Vijayan, Nov 15 '18 at 06:30
I`m submitting null value. I mean I\`m just clicking submit without inputting anything. So it is expected to show an validation error message in Nove UI right? — Vineeth Vijayan, Nov 15 '18 at 07:09
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/183683/discussion-between-vineeth-vijayan-and-saumini-navaratnam). — Vineeth Vijayan, Nov 15 '18 at 07:25

score 0 · Accepted Answer · answered Nov 23 '18 at 11:46

The issue was with in the Handler (app/Exceptions/Handler.php). Not sure if the previous developer updated this function. Anyway, the issues in this function are:

Status code returning in the event of validation exception is 400, thats needs to 422. Then only Vue components will display validation messages.
Also, in here the errors are pushed to "validation" index of "response" array. But Vue component is checking for "errors" index of "response" array.


    public function render($request, Exception $exception)
    {    
        if ($request->ajax() || $request->wantsJson()) {

            $response = ['errors' => 'Sorry, something went wrong.'];

            $status = 400;

            if ($this->isHttpException($exception)) {
                $status = $exception->getStatusCode();
            }

            if (get_class($exception) == 'Illuminate\Validation\ValidationException') {
                $response['validation'] = $exception->validator->errors();
            }

            return response()->json($response, $status);
        }

        return parent::render($request, $exception);
    }

The issue got fixed when I updated code to return error code as 422 in the event of validation exception and pushed errors into "errors" index of response instead of "validation" index.

Laravel Nova - Can`t see validation error messages

1 Answers1