README

Laravel multilingual tools

1 Introduction

MULT - Package for the Laravel framework to content manage with different languages.

For example, you can store pages in English, Russian, French, German and some another languages...

It is you who add new languages to your application.

All multilingual fields will be with a language postfix, as in example:

title_en, description_en, content_en

title_ru, description_ru, content_ru, e t. c.

2 Dependencies

laravel 8+ | 9+ | 10+ | 11+
php >= 7.3
composer

3 Installation

Note!

Version 2.x is for laravel 8, 9, 10, 11.

Version 1.x is for laravel 7. You can use branch laravel7-mult with 1.x versions.

3.1 General installation from remote repository

Run the composer command:

composer require itstructure/laravel-multilingual-tools "~2.0.5"

3.2 If you are testing this package from local server directory

In application composer.json file set the repository, as in example:

"repositories": [
    {
        "type": "path",
        "url": "../laravel-multilingual-tools"
    }
],

Here,

../laravel-multilingual-tools - directory name, which has the same directory level as your project application and contains MULT package.

Then run command:

composer require itstructure/laravel-multilingual-tools:dev-master --prefer-source

3.3 Next internal installation steps

Publish files.
- To publish migrations run command:
  
  php artisan mult:publish --only=migrations
  
  It stores migration file to database/migrations folder. There is a migration to create languages table.
- To publish seeder run command:
  
  php artisan mult:publish --only=seeders
  
  It stores seeder files to database/seeders folder. There is a seeder to create a first English language DB entry as a default.
- To publish all parts run command without only argument:
  
  php artisan mult:publish
Else you can use --force argument to rewrite already published files.
Run command to run migration and seed:

php artisan mult:database

The next will be acted:
- A table languages will be created.
- A first English language will be stored as a default.
Or optional:

To run just migration php artisan mult:database --only=migrate

To run just seed php artisan mult:database --only=seed
- Alternative variant for seeders.
  
  You can set published MultSeeder seeder class in to a special DatabaseSeeder:
```
use Illuminate\Database\Seeder;
```
```
class DatabaseSeeder extends Seeder
{
    public function run()
    {
        $this->call(MultSeeder::class);
    }
}
```
  and run command: php artisan db:seed.

4 Usage

Notes:

There are no controllers, views, routes and another CRUD elements to manage languages. There is just a model Language. This CRUD you must to create by yourself in your application.
There are no controllers, models, views, routes and another CRUD elements to manage entity content. There are just base classes, which are written below. CRUDs you must to create by yourself in your application.

4.1 Migration part

First, before a develop multilingual application, make migrations with extending from MultilingualMigration base class.

Example for pages table:

use Illuminate\Database\Schema\Blueprint;
use Itstructure\Mult\Classes\MultilingualMigration;

class CreatePagesTable extends MultilingualMigration
{
    public function up()
    {
        $this->createMultilingualTable('pages', function (Blueprint $table) {
            $table->string('title', 64);
            $table->text('description')->nullable();
            
        }, function (Blueprint $table) {
            $table->unsignedTinyInteger('active')->default(0)->index();
            $table->string('alias', 64)->index();
        });
    }
    
    public function down()
    {
        $this->dropMultilingualTable('pages');
    }
}

Here,

createMultilingualTable() method provides:

First argument: table name.
Second argument: a callable with multilingual fields.
Third argument: a callable with simple fields.

After applying a migration, two tables will be created automatically:

pages - to store a simple data.
pages_languages - to store translates, some entries for concrete pages entry.

Note: Timestamps created automatically for both tables.

And the next special columns for pages_languages table with foreign keys will be created automatically:

column pages_id. Foreign key to pages table pages_languages(pages_id) -> pages(id)
column languages_id. Foreign key to languages table pages_languages(languages_id) -> languages(id)

Example with already stored data:

Main table "pages"

| id | active |    alias    |      created_at     |      updated_at     |
|----|--------|-------------|---------------------|---------------------|
| 1  |    1   | first-page  | 2020-01-14 18:06:33 | 2020-01-14 18:06:33 |
| 2  |    1   | second-page | 2020-01-14 18:10:00 | 2020-01-14 18:10:00 |
| 3  |    0   | third-page  | 2020-01-14 19:05:15 | 2020-01-14 19:05:15 |

Translate table "pages_languages"

| pages_id | languages_id |    title   |      description     |      created_at     |      updated_at     |
|----------|--------------|------------|----------------------|---------------------|---------------------|
|    1     |      1       | Page 1     |     Description 1    | 2020-01-14 18:06:33 | 2020-01-14 18:06:33 |
|    1     |      2       | Страница 1 |     Описание 1       | 2020-01-14 18:06:33 | 2020-01-14 18:06:33 |
|    2     |      1       | Page 2     |     Description 2    | 2020-01-14 18:10:00 | 2020-01-14 18:10:00 |
|    3     |      1       | Page 3     |     Description 3    | 2020-01-14 19:05:15 | 2020-01-14 19:05:15 |
|    3     |      2       | Страница 3 |     Описание 3       | 2020-01-14 19:05:15 | 2020-01-14 19:05:15 |

Language table "languages"

| id | locale | short_name |  name   | default |      created_at     |      updated_at     |
|----|--------|------------|---------|---------|---------------------|---------------------|
| 1  | en-US  |     en     | English |    1    | 2020-01-14 18:06:33 | 2020-01-14 18:06:33 |
| 2  | ru-RU  |     ru     | Русский |    0    | 2020-01-14 18:10:00 | 2020-01-14 18:10:00 |

4.2 Model part

Notes:

Access to multilingual value from a model entry is by using a language postfix. Example:
```
$model = Page::findOrFail($id);
echo $model->title_en;
```

Set a new multilingual value for a model is by using a language postfix. Example:

$model = Page::findOrFail($id);
$model->title_en = 'New title value';
$model->save();

4.2.1 Main simple model

Create a main model for base table and use MultilingualModelTrait.

Example model for pages table:

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Itstructure\Mult\Traits\MultilingualModelTrait;

class Page extends Model
{
    use MultilingualModelTrait;
    
    protected $table = 'pages';
    
    protected $fillable = ['active', 'alias'];
}

4.2.2 Translate model

Create a model for translates table.

Example model for pages_languages table:

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class PageLanguage extends Model
{
    protected $table = 'pages_languages';
    
    protected $fillable = ['pages_id', 'languages_id', 'title', 'description'];
    
    public function page() // It is not necessary to create
    {
        return $this->hasOne(Page::class, 'id', 'pages_id');
    }
    
    public function language() // It is not necessary to create
    {
        return $this->hasOne(Language::class, 'id', 'languages_id');
    }
}

It is not necessary to create relation methods here, such as: page(), language(). It is additional.

4.3 Validation requests part

This request classes can be useful in controller's methods.

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Itstructure\Mult\Models\Language;
use Itstructure\Mult\Helpers\MultilingualHelper;

class StorePageRequest extends FormRequest
{
    protected $shortLanguageList = [];
    
    public function __construct()
    {
        parent::__construct();
        
        $this->shortLanguageList = Language::shortLanguageList();
    }
    
    public function authorize()
    {
        return true;
    }
    
    public function rules()
    {
        $multilingualRules = MultilingualHelper::fieldsTransformer([
            'title' => 'required|string|min:3|max:64',
            'description' => 'nullable|string'
            
        ], function ($fieldValue) {
            return $fieldValue;
            
        }, $this->shortLanguageList);
        
        return array_merge([
            'active' => 'required|numeric',
            'alias' => 'required|string|min:3|max:64'
            
        ], $multilingualRules);
    }
    
    public function attributes()
    {
        $multilingualAttributes = MultilingualHelper::fieldsTransformer([
            'title' => __('messages.title'),
            'description' => __('messages.description')
            
        ], function ($fieldValue) {
            return $fieldValue;
            
        }, $this->shortLanguageList);
        
        return array_merge([
            'active' => __('messages.activity'),
            'alias' => __('messages.alias')
            
        ], $multilingualAttributes);
    }
}

Here roles() method makes the next result:

[
    "active" => "required|numeric",
    "alias" => "required|string|min:3|max:64",
    "title_en" => "required|string|min:3|max:64",
    "title_ru" => "required|string|min:3|max:64",
    "description_en" => "nullable|string",
    "description_ru" => "nullable|string"
]

4.4 Controller part

Short page controller example just to create entry:

namespace App\Http\Controllers;

use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Routing\Controller;
use Itstructure\Mult\Models\Language;
use Itstructure\Mult\Helpers\MultilingualHelper;
use App\Models\Page;
use App\Http\Requests\StorePageRequest;

class PageController extends Controller
{
    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
    
    public function create()
    {
        $languageList = Language::languageList();
        
        return view('page.create', compact('languageList'));
    }
    
    public function store(StorePageRequest $request)
    {
        MultilingualHelper::fill(new Page(), $request->all())->save();
        
        return redirect()->route('page_list');
    }
}

4.5 View template part

Short example for page.create blade view template:

<form action="{{ route('page_store') }}" method="post">
    <ul class="nav nav-tabs">
        @foreach($languageList as $langModel)
            <li class="nav-item">
                <a class="nav-link @if($langModel->default == 1)active @endif" data-toggle="tab" href="#lang_{{ $langModel->short_name }}">
                    {{ $langModel->name }}
                </a>
            </li>
        @endforeach
    </ul>
    <div class="tab-content my-2">
        @foreach($languageList as $langModel)
            <div class="tab-pane fade @if($langModel->default == 1)show active @endif" id="lang_{{ $langModel->short_name }}">
                <div class="row">
                    <div class="col-12 col-sm-10 col-md-8 col-lg-6 col-xl-4">
                        <div class="form-group">
                            <label for="page_title_{{ $langModel->short_name }}">{!! __('messages.title') !!}</label>
                            <input id="page_title_{{ $langModel->short_name }}"
                                   type="text"
                                   class="form-control @if ($errors->has('title_'.$langModel->short_name)) is-invalid @endif"
                                   name="title_{{ $langModel->short_name }}"
                                   value="{{ old('title_'.$langModel->short_name, !empty($model) ? $model->{'title_'.$langModel->short_name} : null) }}">
                            @if ($errors->has('title_'.$langModel->short_name))
                                <div class="invalid-feedback">
                                    <strong>{{ $errors->first('title_'.$langModel->short_name) }}</strong>
                                </div>
                            @endif
                        </div>
                    </div>
                </div>
                <div class="row">
                    <div class="col-12 col-sm-10 col-md-8 col-lg-6 col-xl-4">
                        <div class="form-group">
                            <label for="page_description_{{ $langModel->short_name }}">{!! __('messages.description') !!}</label>
                            <input id="page_description_{{ $langModel->short_name }}"
                                   type="text"
                                   class="form-control @if ($errors->has('description_'.$langModel->short_name)) is-invalid @endif"
                                   name="description_{{ $langModel->short_name }}"
                                   value="{{ old('description_'.$langModel->short_name, !empty($model) ? $model->{'description_'.$langModel->short_name} : null) }}">
                            @if ($errors->has('description_'.$langModel->short_name))
                                <div class="invalid-feedback">
                                    <strong>{{ $errors->first('description_'.$langModel->short_name) }}</strong>
                                </div>
                            @endif
                        </div>
                    </div>
                </div>
            </div>
        @endforeach
    </div>
    
    <div class="row mb-3">
        <div class="col-12 col-sm-10 col-md-8 col-lg-6 col-xl-4">
            <div class="custom-control custom-radio custom-control-inline">
                <input type="radio" id="page_active_input" name="active" value="1" class="custom-control-input" 
                    @if(old('active', !empty($model) ? $model->active : 1) == 1) checked @endif >
                <label class="custom-control-label" for="page_active_input">{!! __('messages.active') !!}</label>
            </div>
            <div class="custom-control custom-radio custom-control-inline">
                <input type="radio" id="page_inactive_input" name="active" value="0" class="custom-control-input" 
                    @if(old('active', !empty($model) ? $model->active : 1) == 0) checked @endif >
                <label class="custom-control-label" for="page_inactive_input">{!! __('messages.inactive') !!}</label>
            </div>
        </div>
    </div>
    <button class="btn btn-primary" type="submit">Create</button>
    <input type="hidden" value="{!! csrf_token() !!}" name="_token">
</form>

License

Licensed under the MIT license. See LICENSE.txt for details.

itstructure / laravel-multilingual-tools

Maintainers

Details