Laravel 9 dynamic dependent dropdown using ajax jquery; In this tutorial, we will learn how to implement dynamic dependent dropdown using jquery ajax in laravel 9 apps.
The dynamic dependent select box is used to automatically add dependent data to the dropdown list. Based on the dropdown options, the dependent data is retrieved from the database and displayed in the next select option field
And as well as will guide on how to show selected subcategories dependent dropdown on selected category dropdown using jquery ajax in laravel 9 app.
Laravel 9 AJAX Dynamic Dependent Category and Subcategory Dropdown Example
Use the following steps to implement dynamic category and subcategory dependent dropdown using jQuery ajax in laravel 9 apps:
- Step 1 – Install Laravel 9 App
- Step 2 – Connecting App to Database
- Step 3 – Create Model and Migration
- Step 4 – Add Routes
- Step 5 – Create Controllers By Artisan
- Step 6 – Create Blade Views
- Step 7 – Run Development Server
- Step 8 – Test This App
Step 1 – Install Laravel 9 App
First of all, Execute the following command on terminal to download or install laravel 9 fresh new setup:
composer create-project --prefer-dist laravel/laravel blog
Step 2 – Connecting App to Database
After that, open “.env” file and update the database name, username, and password in the env file:
DB_CONNECTION=mysql DB_HOST=127.0.0.1 DB_PORT=3306 DB_DATABASE=Enter_Your_Database_Name DB_USERNAME=Enter_Your_Database_Username DB_PASSWORD=Enter_Your_Database_Password
Step 3 – Create Modal and Migration
In this step, create category table migration and create category Modal by using the following command:
php artisan make:model Category -m
Navigate database/migrations/ and open create_categorys_table.php file. Then update the following code into this file:
public function up()
{
Schema::create('categories', function (Blueprint $table) {
$table->id();
$table->string('name');
$table->unsignedInteger('parent_id')->nullable();
$table->timestamps();
});
}
Now run the following command
php artisan migrate
Next, open Category.php model file and update the following code into it, which is placed on app/Models/:
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Category extends Model
{
use HasFactory;
public function subcategories(){
return $this->hasMany('App\Category', 'parent_id');
}
}
Step 4 – Add Routes
Next step, Navigate to “routes/web.php” file and add the following routes into your web.php file:
use App\Http\Controllers\CategoryController;
Route::get('cat', [CategoryController::class, 'index']);
Route::post('subcat', [CategoryController::class, 'subCat']);
Step 5 – Create Controllers by Artisan
Next step, execute the following command on the terminal to create a controller file that named CategoryController:
php artisan make:controller CategoryController
This command will create CategoryController by the artisan command.
Next, Navigate to app/http/controller and open CategoryController.php.Then update the following methods into your controller file:
<?php
namespace App\Http\Controllers;
use App\Models\Category;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
class CategoryController extends Controller
{
public function index(Request $request)
{
$categoris = Category::where('parent_id',0)->get();
return view('category',["categoris" => $categoris]);
}
public function subCat(Request $request)
{
$parent_id = $request->cat_id;
$subcategories = Category::where('id',$parent_id)
->with('subcategories')
->get();
return response()->json([
'subcategories' => $subcategories
]);
}
}
Step 6 – Create Blade Views
In this step, create one blade views file for rendering data on it. So navigate to resources/views folder and create the blade view as following:
Create first file name category.blade.php and update the following code into it:
<html lang="{{ app()->getLocale() }}">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Laravel 9 jquery ajax categories and subcategories, select dropdown</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet">
<meta name="csrf-token" content="{{ csrf_token() }}" />
</head>
<body>
<div class="container" style="margin-top: 50px; margin-left: 300px">
<div class="row">
<div class="col-lg-6">
<form action="">
<h4>Category</h4>
<select class="browser-default custom-select" name="category" id="category">
<option selected>Select category</option>
@foreach ($categoris as $item)
<option value="{{ $item->id }}">{{ $item->name }}</option>
@endforeach
</select>
<h4>Subcategory</h4>
<select class="browser-default custom-select" name="subcategory" id="subcategory">
</select>
</form>
</div>
</div>
</div>
<script type="text/javascript">
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
$(document).ready(function () {
$('#category').on('change',function(e) {
var cat_id = e.target.value;
$.ajax({
url:"{{ route('subcat') }}",
type:"POST",
data: {
cat_id: cat_id
},
success:function (data) {
$('#subcategory').empty();
$.each(data.subcategories[0].subcategories,function(index,subcategory){
$('#subcategory').append('<option value="'+subcategory.id+'">'+subcategory.name+'</option>');
})
}
})
});
});
</script>
</body>
</html>
Step 7 – Run Development Server
In this step, use the following PHP artisan serve command to start your server locally:
php artisan serve
Step 8 – Test This App
Now, open a browser and hit the following URL on it to test this app:
http://localhost:8000/cat
Conclusion
In this tutorial, you have learned how to create dynamic dependent dropdown using Ajax in Laravel 9 app.
