Laravel 8 form validation example tutorial. In this post, i am going to show you how to validate and store form data in laravel 8 application.
In this post example, i will create add blog post form with validation and insert form data to database using laravel 8 version. As well as And validation form data before store into database.
How to Validate Form Data in Laravel 8
- Step 1 – Install Laravel 8 Application
- Step 2 – Configuring Database using Env File
- Step 3 – Create Model & Migration File For Form
- Step 4 – Create Routes
- Step 5 – Creating Controller
- Step 6 – Create Blade File For Form
- Step 7 – Start Development Server
- Step 8 – Run Laravel 8 Form Validation App On Browser
Step 1 – Install Laravel 8 Application
In step 1, open your terminal and navigate to your local web server directory using the following command:
//for windows user cd xampp/htdocs //for ubuntu user cd var/www/html
Then install laravel 8 latest application using the following command:
composer create-project --prefer-dist laravel/laravel LaravelFormValidation
Step 2 – Configuring Database using Env File
In step 2, open your downloaded laravel 8 app into any text editor. Then find .env file and configure database detail like following:
DB_CONNECTION=mysql DB_HOST=127.0.0.1 DB_PORT=3306 DB_DATABASE=db name DB_USERNAME=db user name DB_PASSWORD=db password
Step 3 – Create Model & Migration File For Form
In step 3, open command prompt and navigate to your project by using the following command:
cd / LaravelFormValidation
Then create model and migration file by using the following command:
php artisan make:model Post -m
The above command will create two files into your laravel 8 form validation application, which is located inside the following locations:
- LaravelForm/app/Models/Post.php
- LaravelForm/database/migrations/2020_09_09_025857_create_posts_table.php
So, find create_posts_table.php file inside LaravelForm/database/migrations/ directory. Then open this file and add the following code into function up() on this file:
public function up()
{
Schema::create('posts', function (Blueprint $table) {
$table->id();
$table->string('title');
$table->text('description');
$table->timestamps();
});
}
Now, open again your terminal and type the following command on cmd to create tables into your selected database:
php artisan migrate
Step 4 – Create Routes
In step 4, open your web.php file, which is located inside routes directory. Then add the following routes into web.php file:
<?php
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\PostController;
/*
|--------------------------------------------------------------------------
| 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('/', function () {
return view('welcome');
});
Route::get('add-blog-post-form', [PostController::class, 'index']);
Route::post('store-form', [PostController::class, 'store']);
Step 5 – Creating Controller
In step 5, create form controller by using the following command:
php artisan make:controller PostController
The above command will create PostController.php file, which is located inside LaravelForm/app/Http/Controllers/ directory.
The following laravel validation rules will validate form data before store into database in laravel:
$validatedData = $request->validate([
'title' => 'required|unique:posts|max:255',
'description' => 'required',
]);
So open PostController.php file and add the following code into it:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\Post;
class PostController extends Controller
{
public function index()
{
return view('add-blog-post-form');
}
public function store(Request $request)
{
$validatedData = $request->validate([
'title' => 'required|unique:posts|max:255',
'description' => 'required',
]);
$post = new Post;
$post->title = $request->title;
$post->description = $request->description;
$post->save();
return redirect('add-blog-post-form')->with('status', 'Blog Post Form Data Has Been inserted');
}
}
Step 6 – Create Blade File For Form
In step 6, create new blade view file that named add-blog-post-form.blade.php inside resources/views directory for add blog post form.
The following code display error message in laravel forms. So do not forget to add the following code along laravel forms fields:
@error('title')
<div class="alert alert-danger mt-1 mb-1">{{ $message }}</div>
@enderror
Don’t worry i have already added the validation error message display code along with each form fields.
So, you can add the following php and html form code into add-blog-post-form.blade.php:
<!DOCTYPE html>
<html>
<head>
<title>How to Validate Form Data in Laravel 8</title>
<meta name="csrf-token" content="{{ csrf_token() }}">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
</head>
<body>
<div class="container mt-4">
@if(session('status'))
<div class="alert alert-success">
{{ session('status') }}
</div>
@endif
<div class="card">
<div class="card-header text-center font-weight-bold">
<h2>Laravel 8 Form Validation Example Tutorial</h2>
</div>
<div class="card-body">
<form name="add-blog-post-form" id="add-blog-post-form" method="post" action="{{url('store-form')}}">
@csrf
<div class="form-group">
<label for="exampleInputEmail1">Title</label>
<input type="text" id="title" name="title" class="@error('title') is-invalid @enderror form-control">
@error('title')
<div class="alert alert-danger mt-1 mb-1">{{ $message }}</div>
@enderror
</div>
<div class="form-group">
<label for="exampleInputEmail1">Description</label>
<textarea name="description" class="@error('title') is-invalid @enderror form-control"></textarea>
@error('title')
<div class="alert alert-danger mt-1 mb-1">{{ $message }}</div>
@enderror
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
</div>
</div>
</body>
</html>
Step 7 – Start Development Server
Finally, open your command prompt again and run the following command to start development server for your laravel 8 form application:
php artisan serve
Step 8 – Run Laravel 8 Form Validation App On Browser
In step 8, open your browser and fire the following url into your browser:
http://127.0.0.1:8000/add-blog-post-form
When you fire the above given url on browser, you will look like in the following image:
