How to Select Selected Value a Dropdown with Dynamic Dropdown in laravel 5.5

Laravel 5.5 Ajax tutorial : This tutorial 403.blade.php will show you how to select Selected Value from a Dynamic Dropdown in laravel 5.5 with JQuery Ajax step by step.

Video Tutorial Select Value Dropdown

Full Source Code

Create new Laravel Project

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

Create new Controller

php artisan make:controller CountryController

CountryController.php

<?php

namespace AppHttpControllers;

use IlluminateHttpRequest;
use IlluminateSupportFacadesInput;

use AppProvinces;
use AppRegencies;
use AppDistricts;
use AppVillages;

class CountryController extends Controller
{
    public function provinces(){
      $provinces = Provinces::all();
      return view('indonesia', compact('provinces'));
    }

    public function regencies(){
      $provinces_id = Input::get('province_id');
      $regencies = Regencies::where('province_id', '=', $provinces_id)->get();
      return response()->json($regencies);
    }

    public function districts(){
      $regencies_id = Input::get('regencies_id');
      $districts = Districts::where('regency_id', '=', $regencies_id)->get();
      return response()->json($districts);
    }

    public function villages(){
      $districts_id = Input::get('districts_id');
      $villages = Villages::where('district_id', '=', $districts_id)->get();
      return response()->json($villages);
    }
}

Create new Model

php artisan make:model Provinces
php artisan make:model Regencies
php artisan make:model Districts
php artisan make:model Villages

Provinces.php

<?php

namespace App;

use IlluminateDatabaseEloquentModel;

class Provinces extends Model
{
    protected $table = 'provinces';
}

Regencies.php

<?php

namespace App;

use IlluminateDatabaseEloquentModel;

class Regencies extends Model
{
    protected $table = 'regencies';
}

Districts.php

<?php

namespace App;

use IlluminateDatabaseEloquentModel;

class Districts extends Model
{
    protected $table = 'districts';
}

Villages.php

<?php

namespace App;

use IlluminateDatabaseEloquentModel;

class Villages extends Model
{
    protected $table = 'villages';
}

Add new Route

Route::get('/indonesia','CountryController@provinces');

Route::get('/json-regencies','CountryController@regencies');

Route::get('/json-districts', 'CountryController@districts');

Route::get('/json-village', 'CountryController@villages');

Setup Connection to Database

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=indonesia
DB_USERNAME=root
DB_PASSWORD=null

Create New View

Indonesia.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">
    <title>Indonesia</title>

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">

    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.2/html5shiv.js"></script>
      <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
  </head>
  <body>
    <div class="container">
      <div class="col-lg-4">
        <h2>Laravel 5.5 JQuery Ajax Example</h2>
        {{ Form::open() }}
          <div class="form-group">
            <label for="">Your Provinces</label>
            <select class="form-control" name="provinces" id="provinces">
              <option value="0" disable="true" selected="true">=== Select Provinces ===</option>
                @foreach ($provinces as $key => $value)
                  <option value="{{$value->id}}">{{ $value->name }}</option>
                @endforeach
            </select>
          </div>

          <div class="form-group">
            <label for="">Your Regencies</label>
            <select class="form-control" name="regencies" id="regencies">
              <option value="0" disable="true" selected="true">=== Select Regencies ===</option>
            </select>
          </div>

          <div class="form-group">
            <label for="">Your Districts</label>
            <select class="form-control" name="districts" id="districts">
              <option value="0" disable="true" selected="true">=== Select Districts ===</option>
            </select>
          </div>

          <div class="form-group">
            <label for="">Your Villages</label>
            <select class="form-control" name="villages" id="villages">
              <option value="0" disable="true" selected="true">=== Select Villages ===</option>
            </select>
          </div>

        {{ Form::close() }}
      </div>
    </div>

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

    <script type="text/javascript">
      $('#provinces').on('change', function(e){
        console.log(e);
        var province_id = e.target.value;
        $.get('/json-regencies?province_id=' + province_id,function(data) {
          console.log(data);
          $('#regencies').empty();
          $('#regencies').append('<option value="0" disable="true" selected="true">=== Select Regencies ===</option>');

          $('#districts').empty();
          $('#districts').append('<option value="0" disable="true" selected="true">=== Select Districts ===</option>');

          $('#villages').empty();
          $('#villages').append('<option value="0" disable="true" selected="true">=== Select Villages ===</option>');

          $.each(data, function(index, regenciesObj){
            $('#regencies').append('<option value="'+ regenciesObj.id +'">'+ regenciesObj.name +'</option>');
          })
        });
      });

      $('#regencies').on('change', function(e){
        console.log(e);
        var regencies_id = e.target.value;
        $.get('/json-districts?regencies_id=' + regencies_id,function(data) {
          console.log(data);
          $('#districts').empty();
          $('#districts').append('<option value="0" disable="true" selected="true">=== Select Districts ===</option>');

          $.each(data, function(index, districtsObj){
            $('#districts').append('<option value="'+ districtsObj.id +'">'+ districtsObj.name +'</option>');
          })
        });
      });

      $('#districts').on('change', function(e){
        console.log(e);
        var districts_id = e.target.value;
        $.get('/json-village?districts_id=' + districts_id,function(data) {
          console.log(data);
          $('#villages').empty();
          $('#villages').append('<option value="0" disable="true" selected="true">=== Select Villages ===</option>');

          $.each(data, function(index, villagesObj){
            $('#villages').append('<option value="'+ villagesObj.id +'">'+ villagesObj.name +'</option>');
          })
        });
      });


    </script>

  </body>
</html>

Download Database Project from this link https://raw.githubusercontent.com/edwardsamuel/Wilayah-Administratif-Indonesia/master/mysql/indonesia.sql