LARAVEL Tutorial


Laravel 6 Ajax Image Upload Example Tutorial


In the previous tutorial, you have learned how to upload single and multiple files or images on the web application folder and MySQL database.

In this tutorial, you will learn how to upload files or images into the database table and folder using ajax in laravel web application. Also, you will learn how to show a preview of image before uploading on web server and MySQL database.

Laravel Ajax Image Upload Example Tutorial

  • Install Laravel Application
  • Configure Database Detail
  • Create Model and Migration
  • Run Migration
  • Create Routes
  • Generate Controller By Artisan
  • Create Blade View
  • Start Development Server

Install Laravel Application

First Step, you need to download or install laravel web application new setup on your local machine. you can use the following command to download or install laravel application new setup:

composer create-project laravel/laravel laravel-ajax-image-upload –-prefer-dist

If you want to install a specific version of laravel, you can follow the following tutorial

https://w3alert.com/laravel-tutorial/laravel-install-on-windows-ubuntu-with-composer

Configure Database Detail

After that, you will set up the database credentials in .env file. So open your .env file and update database credentials following:

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

Create Model and Migration

Next, we need to create a model and migration in your laravel web application using the php artisan make:model model_name -m. So run the following command in your project root directory.

Go to the command prompt

cd/project_root_directory

php artisan make:model Image -m

after that, go to database/migrations/ and find created migration file and add fields, as you want to in your database table.

Your migration file looks like:

<?php

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

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

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

And go to the app/ directory and find the model file.

Your model file looks like:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Image extends Model
{
    //
}

Run Migration

Before you will run php artisan migrate command. Go to app/providers/AppServiceProvider.php and update the below code :

..
use Illuminate\Support\Facades\Schema;
 
....
function boot()
{
    Schema::defaultStringLength(191);
}
... 

Next, go to command prompt and run the following command:

php artisan migrate
OR
php artisan migrate:fresh

This php artisan migrate command creates a table in your database.

Create Routes

Next step, go to routes/web.php file and update the following routes into your file:

//display image uploading form
Route::get('ajax-image-upload','AjaxImageController@index');

//insert files or images into mysql database table laravel
Route::post('ajax-image-upload','AjaxImageController@store');

Generate Controller By Artisan

Now, you need to generate or create a controller file using artisan command, so use the php artisan make:controller command and generate/create a new controller file:

php artisan make:controller AjaxImageController

In this controller file, we will create 2 methods for display file uploading form and store file into database and folder in laravel web application.

After that, go to App/Http/Controllers/ directory and find the created FileController file and update the following code into your file:

<?php
 
namespace App\Http\Controllers;
 
use Illuminate\Http\Request;
use Validator,Redirect,Response;
Use App\Image;
 
class AjaxImageController extends Controller
{
    public function index() {
        return view('ajax-image');
    }
 
    public function store(Request $request)
    {
        request()->validate([
            'image' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
        ]);

        $response =  Response()->json([
                "success" => false,
                "image" => ''
         ]);

         if ($files = $request->file('image')) 
         {
               $destinationPath = 'public/image/'; // upload path
               $imageName = date('YmdHis') . "." . $files->getClientOriginalExtension();
               $files->move($destinationPath, $imageName);
               $save['title'] = "$imageName";
         }
         
         $check = Image::insertGetId($save);

          $response =  Response()->json([
                "success" => true,
                "image" => $check
          ]);

 
        return Response()->json($response);
 
    }
}

Create Blade Views

Next, you need to create a blade views file, so go resource/views directory and create the following blade views file.

Go to resource/views/ then create a new file name ajax-image.blade.php and update the following code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <meta name="csrf-token" content="{{ csrf_token() }}">
  <title>Laravel Ajax Image Upload With Preview</title>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css" />
  <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
</head>
<body>
 
  <nav class="navbar navbar-expand-sm bg-primary navbar-dark">
    <a class="navbar-brand" href="{{ url('/') }}">w3alert.com</a>
  </nav>
    <div class="container mt-5">

        <div class="row">
            <div class="col-sm-12">
                <h4>Laravel Ajax Image Preview Before Upload</h4>
            </div>
        </div>
      
        <form method="POST" enctype="multipart/form-data" id="ajax-image-upload-form" action="javascript:void(0)" >
                  
            <div class="row">
                <div class="col-md-12 mb-2">
                    <img id="display-image-preview" src=""
                        alt="" style="max-height: 150px;">
                </div>
                <div class="col-md-12">
                    <div class="form-group">
                        <input type="file" name="image" placeholder="Choose image" id="image">
                        <span class="text-danger">{{ $errors->first('title') }}</span>
                    </div>
                </div>
                  
                  
                <div class="col-md-12">
                    <button type="submit" class="btn btn-primary">Submit</button>
                </div>
            </div>     
        </form>
    </div>
    <script type="text/javascript">
     
    $(document).ready(function (e) {
  
        $.ajaxSetup({
            headers: {
                'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
            }
        });
 
        $('#image').change(function(){
          
            let reader = new FileReader();
            reader.onload = (e) => { 
              $('#display-image-preview').attr('src', e.target.result); 
            }
            reader.readAsDataURL(this.files[0]); 
 
        });
 
        $('#ajax-image-upload-form').submit(function(e) {
            e.preventDefault();
 
            var formData = new FormData(this);
 
            $.ajax({
                type:'POST',
                url: "{{ url('ajax-image-upload')}}",
                data: formData,
                cache:false,
                contentType: false,
                processData: false,
                success: (data) => {
                    this.reset();
                    alert('Image has been uploaded!');
                },
                error: function(data){
                    console.log(data);
                }
            });
        });
    });
 
</script>
</body>
</html>

Start development server

You can use the following command artisan command to start the development server:

php artisan serve

The final step, go to your browser and type the below-given URL into your browser:

http://localhost:8000/ajax-image-upload

OR

http://localhost/laravel-ajax-image-upload/public/ajax-image-upload

You can also download laravel ajax image upload web application here Download