Laravel-9-How-To-Set-Default-Values-in-Model-For-Columns

Laravel 9 How To Set Default Values in Model For Columns

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Inside this article we will see the concept i.e Laravel 9 How To Set Default Values in Model For Columns Tutorial. Article contains the classified information about Settings of default column data values in Laravel model.

If you are looking for a solution i.e How to set default row values in laravel model then this article will help you a lot for this. Tutorial is super easy to understand and implement it in your code as well.

Sometimes we need to set default values for table columns whenever use doesn’t submit any input value for it then this article will help to get that concept.

Learn More –

Let’s get started.

Laravel Installation

Open terminal and run this command to create a laravel project.

$ composer create-project laravel/laravel myblog

It will create a project folder with name myblog inside your local system.

To start the development server of laravel – 

$ php artisan serve

URL: http://127.0.0.1:8000

Assuming laravel already installed inside your system.

Create Database & Connect

To create a database, either we can create via Manual tool of PhpMyadmin or by means of a mysql command.

CREATE DATABASE laravel_app;

To connect database with application, Open .env file from application root. Search for DB_ and update your details.

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=laravel_app
DB_USERNAME=root
DB_PASSWORD=root

Create Migration

Open project into terminal and run this command to create a migration file.

$ php artisan make:migration create_posts_table

Above command will create 2022_09_29_212520_create_posts_table.php file inside /database/migrations folder.

Open xxx_create_posts_table.php file and write this code into it.

<?php

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

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

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

Run Migration

Back to terminal and run this command for migrations.

$ php artisan migrate

It will create posts table into your database.

Create Model

Back to terminal and run this command to create model.

$ php artisan make:model Post

It will create a model file Post.php inside /app/Models folder.

Open Post.php and write this following code into it.

<?php

namespace App\Models;

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

class Post extends Model
{
    use HasFactory;

    protected $fillable = [
        'title', 'body'
    ];

    /**
     * The model's default values for attributes.
     *
     * @var array
     */
    protected $attributes = [
        'title' => 'Default Title',
    ];
}

Concept

To set default values for columns:

protected $attributes = [
   'title' => 'Default Title',
];

Create Controller

Back to project terminal and run this command to create a controller file.

$ php artisan make:controller PostController

Above command will create a file i.e PostController.php inside /app/Http/Controllers folder.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Post;

class PostController extends Controller
{
    public function index()
    {
        // Post creates with default title
        Post::create([
            'body' => 'Post Body Added'
        ]);

        // Post created with user values
        Post::create([
            'title' => 'My Custom Title',
            'body' => 'Post Body Added'
        ]);

        //...
    }
}

Add Route

Open web.php from /routes folder. Add this route into it.

//...

use App\Http\Controllers\PostController;

Route::get('posts', [PostController::class, 'index']);
//...

Application Testing

Open project to terminal and type the command to start development server 

$ php artisan serve

URL: http://127.0.0.1:8000/posts

It will create and save data into database table posts.

You can see for first row, you should have the default value of title column whereas in second row you have user defined values.

We hope this article helped you to learn Laravel 9 How To Set Default Values in Model For Columns Example Tutorial in a very detailed way.

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