Laravel 8 Form Validation Example

Originally posted @ https://codeanddeploy.com visit and download the sample code: https://codeanddeploy.com/blog/laravel/laravel-8-form-validation-example

In this post, I will show you an example of how to implement a Laravel 8 form validation. W know that this is one of the most important to implement before storing or updating records from your Laravel 8 application. So that we saved a record that is clean and secured to our database. For more information about Laravel validation and their supported rules kindly visit their official documentation.

Below is the step-by-step process on how to implement Laravel validation.

Step 1: Laravel Installation

Before we start we need to install the Laravel 8 application in our local environment. In this example, I'm using XAMPP via Windows. But you're free to use any machine and OS.

In your HTDOCS folder run this command:

composer create-project laravel/laravel laravel-validation --prefer-dist

Once done above command run the below command to point our Laravel 8 project directory.

cd laravel-valdation

Step 2: Database Configuration

If your Laravel project is fresh then you need to update your database credentials. Just open the .env file in your Laravel 8 project.

.env

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=your_database_name_here
DB_USERNAME=your_database_username_here

Step 3: Generate Model, Controller, and Migration

To generate model, controller, and migration for our Laravel ajax example kindly run the following command:

php artisan make:model Project -m -c

Step 4: Migration Setup

Let's set up the migration of our projects table see below example code:

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateProjectsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('projects', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->string('description');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('projects');
    }
}

Now let's run the following command below:

php artisan migrate

Step 5: Setup Model

Here is the code of our project.php model.

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Project extends Model
{
    use HasFactory;

    protected $fillable = [
        'title', 
        'description'
    ];
}

Step 6: Setup Controller

Below is the code of our ProjectController.php as you can see we are using Response when responding to the successful request.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Project;
use Response;

class ProjectController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     */
    public function index()
    {
        $projects = Project::orderBy('id','desc')->get();
        return view('projects.index')->with(compact('projects'));
    }

    /**
     * Show the application dashboard.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return view('projects.create');
    }

    /**
     * Store a newly created resource in storage.
     *
     */
    public function store(Request $request)
    {
        $data = $request->validate([
            'title' => 'required|max:70',
            'description' => 'required'
        ]);

        $project = Project::create($data);

        return redirect('projects')->with('success', 'Project created successfully.');
    }
}

Step 7: Setup Routes

Now let's code our routes.php see the whole code below.

<?php

use Illuminate\Support\Facades\Route;
use App\Http\Controllers\ProjectController;

/*
|--------------------------------------------------------------------------
| 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('/', [ProjectController::class, 'index']);

Route::resource('projects', ProjectController::class);

Step 8: Create Project Layout

Below we create a new folder inside resources/views then create a projects folder. Then create index.blade.php and create.blade.php.

index.blade.php

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="csrf-token" content="{{ csrf_token() }}">

    <title>Laravel Validation</title>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css">

    <style type="text/css">
        /* Custom page CSS
        -------------------------------------------------- */
        /* Not required for template or sticky footer method. */

        main > .container {
          padding: 60px 15px 0;
        }
    </style>
</head>

<body class="d-flex flex-column h-100">

    <header>
        <!-- Fixed navbar -->
        <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
            <div class="container-fluid">
                <a class="navbar-brand" href="#">Fixed navbar</a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarCollapse">
                    <ul class="navbar-nav me-auto mb-2 mb-md-0">
                        <li class="nav-item">
                            <a class="nav-link active" aria-current="page" href="#">Home</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link" href="#">Link</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link disabled">Disabled</a>
                        </li>
                    </ul>
                    <form class="d-flex">
                        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
                        <button class="btn btn-outline-success" type="submit">Search</button>
                    </form>
                </div>
            </div>
        </nav>
    </header>


    <!-- Begin page content -->
    <main class="flex-shrink-0">
        <div class="container">
            <h1 class="mt-5">Laravel Validation <a href="{{ route('projects.create') }}" class="btn btn-primary" style="float: right;">Add Project</a></h1>

            @if(Session::has('success'))
            <div class="alert alert-success">
                {{ Session::get('success') }}
                @php
                    Session::forget('success');
                @endphp
            </div>
            @endif

            <table class="table" id="projects-table">
                <thead>
                    <tr>
                        <th scope="col">#</th>
                        <th scope="col">Title</th>
                        <th scope="col">Description</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach($projects as $project)
                        <tr>
                            <th scope="row">{{ $project->id }}</th>
                            <td>{{ $project->title }}</td>
                            <td>{{ $project->description }}</td>
                        </tr>
                    @endforeach

                </tbody>
            </table>

        </div>
    </main>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.min.js"></script>

</body>

</html>

create.blade.php

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="csrf-token" content="{{ csrf_token() }}">

    <title>Laravel Validation</title>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css">

    <style type="text/css">
        /* Custom page CSS
        -------------------------------------------------- */
        /* Not required for template or sticky footer method. */

        main > .container {
          padding: 60px 15px 0;
        }
    </style>
</head>

<body class="d-flex flex-column h-100">

    <header>
        <!-- Fixed navbar -->
        <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
            <div class="container-fluid">
                <a class="navbar-brand" href="#">Fixed navbar</a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarCollapse">
                    <ul class="navbar-nav me-auto mb-2 mb-md-0">
                        <li class="nav-item">
                            <a class="nav-link active" aria-current="page" href="#">Home</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link" href="#">Link</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link disabled">Disabled</a>
                        </li>
                    </ul>
                    <form class="d-flex">
                        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
                        <button class="btn btn-outline-success" type="submit">Search</button>
                    </form>
                </div>
            </div>
        </nav>
    </header>


    <!-- Begin page content -->
    <main class="flex-shrink-0">
        <div class="container">
            <h1 class="mt-5">Laravel Validation</h1>

            <form action="{{ route('projects.store') }}" method="POST" enctype="multipart/form-data" >
                @csrf

                @if(Session::has('success'))
                <div class="alert alert-success">
                    {{ Session::get('success') }}
                    @php
                        Session::forget('success');
                    @endphp
                </div>
                @endif

                <div class="mb-3">
                    <label for="title" class="form-label">Title</label>
                    <input type="text" 
                        value="{{ old('title') }}"
                        class="form-control" 
                        id="title" 
                        placeholder="Title" 
                        name="title">
                    @if ($errors->has('title'))
                        <span class="text-danger">{{ $errors->first('title') }}</span>
                    @endif
                </div>

                <div class="mb-3">
                    <label for="description" class="form-label">Description</label>
                    <input type="text" 
                        value="{{ old('description') }}"
                        class="form-control" 
                        id="description" 
                        placeholder="Description" 
                        name="description">
                    @if ($errors->has('description'))
                        <span class="text-danger">{{ $errors->first('description') }}</span>
                    @endif
                </div>

                <button type="submit" class="btn btn-primary" style="float: right;">Save</button>

            </form>

        </div>
    </main>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.min.js"></script>

</body>

</html>

That's it and don't forget to run the following command after following it:

php artisan serve

Result:

I hope this tutorial can help you. Kindly visit here https://codeanddeploy.com/blog/laravel/laravel-8-form-validation-example if you want to download this code.

Happy coding :)