In this article, we'll see how to create a custom validation rule in laravel 10. Here, we will learn about the laravel 10 custom validation rule. We'll create a custom form request validation rule in laravel 10. Laravel provides a variety of helpful validation rules
However, you may wish to specify some of your own. One method of registering custom validation rules is using rule objects. To generate a new rule object, you may use the make:rule Artisan command.
In this step, we will install laravel 10 using the following composer command.
composer create-project laravel/laravel laravel_10_validation_example
Then, we'll create a route to the web.php file. So, add the below code to that file.
routes/web.php
<?php
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\UsersController;
/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/
Route::get('index', [UsersController::class, 'create']);
Route::post('store', [UsersController::class, 'store'])->name('store');
Let's use this command to generate a rule that verifies a string is uppercase. Laravel will place the new rule in the app/Rules directory. If this directory does not exist, Laravel will create it when you execute the Artisan command to create your rule
php artisan make:rule Uppercase
app/Rules/Uppercase.php
<?php
namespace App\Rules;
use Closure;
use Illuminate\Contracts\Validation\ValidationRule;
class Uppercase implements ValidationRule
{
/**
* Run the validation rule.
*/
public function validate(string $attribute, mixed $value, Closure $fail): void
{
if (strtoupper($value) !== $value) {
$fail('The :attribute must be uppercase.');
}
}
}
Now, we will create a UsersController.ph using the following command.
php artisan make:controller UsersController
app/Http/Controllers/UsersController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
use App\Rules\Uppercase;
class UsersController extends Controller
{
/**
* Show the application dashboard.
*
* @return \Illuminate\Http\Response
*/
public function create(): View
{
return view('index');
}
/**
* Show the application dashboard.
*
* @return \Illuminate\Http\Response
*/
public function store(Request $request): RedirectResponse
{
$validatedData = $request->validate([
'name' => ['required', 'string', new Uppercase],
'email' => 'required|email'
]);
$user = User::create($validatedData);
return back()->with('success', 'User created successfully.');
}
}
Next, we will create an index.blade.php file.
<!DOCTYPE html>
<html>
<head>
<title>How to Create Custom Validation Rule in Laravel 10 - Vidvatek</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<h1>How to Create Custom Validation Rule in Laravel 10 - Vidvatek</h1>
<form method="POST" action="{{ route('custom.validation.post') }}">
{{ csrf_field() }}
<div class="mb-3">
<label class="form-label" for="inputName">Name:</label>
<input type="text" name="name" id="inputName" class="form-control @error('name') is-invalid @enderror" placeholder="Name">
@error('name')
<span class="text-danger">{{ $message }}</span>
@enderror
</div>
<div class="mb-3">
<label class="form-label" for="inputEmail">Email:</label>
<input type="email" name="email" id="inputEmail" class="form-control @error('email') is-invalid @enderror" placeholder="Email">
@error('email')
<span class="text-danger">{{ $message }}</span>
@endif
</div>
<div class="mb-3">
<button class="btn btn-success btn-submit">Submit</button>
</div>
</form>
</div>
</body>
</html>
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