Hello developers, Under this example, I will show you how to do Laravel Dependent Dropdown Tutorial With Example. We will get the second drop down item based on the first selected drop-down. When we select the first dropdown’s item, it will fire an AJAX request to the laravel server and in return, we get a response and we need to append that response to the second dropdown. So it is called dependent dropdown. You can find more about http request here.
Laravel Dependent Dropdown Tutorial With Example
We are going to Configure Laravel Project.
#1: Download Laravel Project
Establish Laravel Project by the typing following command.
composer create-project --prefer-dist laravel/laravel laraveldropdown
#2: Configure SQL Database
Now we can setup database credentials.
DB_CONNECTION=mysql DB_HOST=127.0.0.1 DB_PORT=3306 DB_DATABASE=laraveldropdown DB_USERNAME=root DB_PASSWORD=
#3: Build Migration File
Here we will create two tables like country and state. First, create a country table so type following command in terminal.
php artisan make:migration create_countries_table --create=countries
It will create a create_countries_table.php migration file.
//create_countries_table.php
public function up()
{
Schema::create('countries', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->timestamps();
});
}
Here we add manually data in a database create_countries_table you can see below screenshot.
Next, create a state table so type following command in terminal.
php artisan make:migration create_states_table --create=states
It will create a create_states_table.php migration file.
//create_states_table
public function up()
{
Schema::create('states', function (Blueprint $table) {
$table->increments('id');
$table->integer('countries_id');
$table->string('name');
$table->timestamps();
});
}
Here we add manually data in a database create_states_table you can see below screenshot.
#4: Create one controller
php artisan make:controller DataController
It will build a controller file called DataController.php.
Add following code into DataController.php file.
//DataController.php
use DB;
public function getCountries()
{
$countries = DB::table('countries')->pluck("name","id");
return view('dropdown',compact('countries'));
}
Here we create a method called getCountries(). This method returns all countries which we have included in the table. So pass countries to view file.
#5: Create a View File.
Create a file in resources/views/dropdown.blade.php and put this following code in it.
<!-- dropdown.blade.php -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Laravel Dependent Dropdown Tutorial With Example</title>
<link rel="stylesheet" href="{{asset('css/app.css')}}">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
</head>
<body>
<div class="container">
<h2>Laravel Dependent Dropdown Tutorial With Example</h2>
<div class="form-group">
<label for="country">Select Country:</label>
<select name="country" class="form-control" style="width:250px">
<option value="">--- Select Country ---</option>
@foreach ($countries as $key => $value)
<option value="{{ $key }}">{{ $value }}</option>
@endforeach
</select>
</div>
<div class="form-group">
<label for="state">Select State:</label>
<select name="state" class="form-control"style="width:250px">
<option>--State--</option>
</select>
</div>
</div>
</body>
</html>
#6: Define Route
We register all route in a web.php file.
//web.php
Route::get('dropdownlist','DataController@getCountries');
Route::get('dropdownlist/getstates/{id}','DataController@getStates');
You can see the screenshot when you change the country state doesn’t change because still we have not added the jQuery so next step will add jQuery code in the dropdown.blade.php file so let’s add.
#7: Add jQuery Code
<!-- dropdown.blade.php -->
<script type="text/javascript">
jQuery(document).ready(function ()
{
jQuery('select[name="country"]').on('change',function(){
var countryID = jQuery(this).val();
if(countryID)
{
jQuery.ajax({
url : 'dropdownlist/getstates/' +countryID,
type : "GET",
dataType : "json",
success:function(data)
{
console.log(data);
jQuery('select[name="state"]').empty();
jQuery.each(data, function(key,value){
$('select[name="state"]').append('<option value="'+ key +'">'+ value +'</option>');
});
}
});
}
else
{
$('select[name="state"]').empty();
}
});
});
</script>
Final code of dropdown.blade.php looks like below code.
<!-- dropdown.blade.php -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Laravel Dependent Dropdown Tutorial With Example</title>
<link rel="stylesheet" href="{{asset('css/app.css')}}">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
</head>
<body>
<div class="container">
<h2>Laravel Dependent Dropdown Tutorial With Example</h2>
<div class="form-group">
<label for="country">Select Country:</label>
<select name="country" class="form-control" style="width:250px">
<option value="">--- Select Country ---</option>
@foreach ($countries as $key => $value)
<option value="{{ $key }}">{{ $value }}</option>
@endforeach
</select>
</div>
<div class="form-group">
<label for="state">Select State:</label>
<select name="state" class="form-control"style="width:250px">
<option>--State--</option>
</select>
</div>
</div>
<script type="text/javascript">
jQuery(document).ready(function ()
{
jQuery('select[name="country"]').on('change',function(){
var countryID = jQuery(this).val();
if(countryID)
{
jQuery.ajax({
url : 'dropdownlist/getstates/' +countryID,
type : "GET",
dataType : "json",
success:function(data)
{
console.log(data);
jQuery('select[name="state"]').empty();
jQuery.each(data, function(key,value){
$('select[name="state"]').append('<option value="'+ key +'">'+ value +'</option>');
});
}
});
}
else
{
$('select[name="state"]').empty();
}
});
});
</script>
</body>
</html>
Add following code into DataController.php file.
//DataController.php
public function getStates($id)
{
$states = DB::table("states")->where("countries_id",$id)->pluck("name","id");
return json_encode($states);
}
Final Code of DataController.php looks like below code.
//DataController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use DB;
class DataController extends Controller
{
public function getCountries()
{
$countries = DB::table('countries')->pluck("name","id");
return view('dropdown',compact('countries'));
}
public function getStates($id)
{
$states = DB::table("states")->where("countries_id",$id)->pluck("name","id");
return json_encode($states);
}
}
At last, our Laravel Dependent Dropdown Tutorial With Example is over.
hi i’m a new b in laravel and ajax and i would like to thank u very much for this very helpful tutorial