How can I set custom validation error messages from a controller, in Laravel 8?

Question

I am working on a registration form with Laravel 8 and Sanctum.

I have this piece of code in the AuthController to validate the form fields:

public function register(Request $request) {
    $fields = $request->validate([
        'first_name' => 'required|string,',
        'last_name' => 'required|string',
        'email' => 'required|string|unique:users,email',
        'password' => 'required|string|confirmed',
        'accept' => 'accepted',
    ]);

    // More code here

}

I want to display more user-friendly validation error messages.

Rather than changing the validation.php file (resources\lang\en\validation.php), I want to change the set them for the registration form only, in the method above.

The problem

As someone that has used Codeigniter for a long time, I had, in Codeigniter, the posibility to do just that:

  $this->form_validation->set_rules('first_name', 'First name', 'required', array('required' => 'The "First name" field is required'));

I was unable to do something similar in Laravel 8.

How do I get the desired result in Laravel 8?

You can optionally supply messages as the second argument, and optionally set attributes in the third argument. This is the facade method: \Illuminate\Contracts\Validation\Validator make(array $data, array $rules, array $messages = [], array $customAttributes = []) — Koeno
– Koeno, Commented Jan 17, 2022 at 12:10

user17417786 · Accepted Answer · 2022-01-17 12:08:53Z

2

Maybe this can work for ya.

    $rules = [
        'first_name' => 'required|string,',
        'last_name' => 'required|string',
        'email' => 'required|string|unique:users,email',
        'password' => 'required|string|confirmed',
        'accept' => 'accepted'
    ];

    $customMessages = [
        'required' => 'The :attribute field is required.'
    ];

    $this->validate($request, $rules, $customMessages);

Also check out the laravel customizing error messages documentation.

answered Jan 17, 2022 at 12:08

user17417786

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2 Comments

Razvan Zamfir Over a year ago

How do I target each/any field with a custom message? Like, for instance, "Looks like you forgot to tell us your name".

user17417786 Over a year ago

It would be better for you if you find it by yourself, but I'll give it to ya: 'first_name.required' => 'Looks like you forgot to tell us your name'

Maik Lowrey · Accepted Answer · 2022-01-17 12:29:20Z

1

The validate function excepts 3 parameters. A) request, B) the rules, C) Custome Messages.

$this->validate($request, $rules, $customMessages); It means define your custom Message Array by key value. Key is the rulename like require. For example:

[
    'required' => 'The :attribute is really,really, really required if you use Login!'
    'email.required' => 'Without email you dont come in ;-)'
]

answered Jan 17, 2022 at 12:29

Maik Lowrey

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How can I set custom validation error messages from a controller, in Laravel 8?

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How do I get the desired result in Laravel 8?

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