Installation

Install package
Add the package in your composer.json by executing the command.
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composer require astrotomic/laravel-translatable
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Configuration
We copy the configuration file to our project.
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php artisan vendor:publish --tag=translatable 
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After this you will have to configure the locales your app should use.
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'locales' => [
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    'en',
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    'fr',
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    'es' => [
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        'MX', // mexican spanish
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        'CO', // colombian spanish
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    ],
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],
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There isn't any restriction for the format of the locales. Feel free to use whatever suits you better, like "eng" instead of "en", or "el" instead of "gr". The important is to define your locales and stick to them.
That's the only configuration key you have to adjust. All the others have a working default value and are described in the configuration file itself.
Migrations
In this example, we want to translate the model Post. We will need an extra table post_translations:
create_posts_table.php
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Schema::create('posts', function(Blueprint $table) {
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    $table->increments('id');
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    $table->string('author');
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    $table->timestamps();
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});
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create_post_translations_table
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Schema::create('post_translations', function(Blueprint $table) {
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    $table->increments('id');
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    $table->integer('post_id')->unsigned();
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    $table->string('locale')->index();
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    $table->string('title');
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    $table->text('content');
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​
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    $table->unique(['post_id', 'locale']);
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    $table->foreign('post_id')->references('id')->on('posts')->onDelete('cascade');
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});
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Models
The translatable model Post should use the trait Astrotomic\Translatable\Translatable. The default convention for the translation model is PostTranslation. The array $translatedAttributes contains the names of the fields being translated in the PostTranslation model.
Post.php
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use Astrotomic\Translatable\Contracts\Translatable as TranslatableContract;
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use Astrotomic\Translatable\Translatable;
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​
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class Post extends Model implements TranslatableContract
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{
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    use Translatable;
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    public $translatedAttributes = ['title', 'content'];
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    protected $fillable = ['author'];
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}
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PostTranslation.php
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class PostTranslation extends Model
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{
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    public $timestamps = false;
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    protected $fillable = ['title', 'content'];
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}
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Custom foreign key
You may also define a custom foreign key for the package to use, e.g. in case of single table inheritance. So, you have a child class ChildPost that inherits from Post class, but has the same database table as its parent.
ChildPost.php
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class ChildPost extends Post 
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{
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    protected $table = 'posts';
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}
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You will have to create a Translation Class for it.
ChildPostTranslation.php
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use Illuminate\Database\Eloquent\Model;
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​
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class ChildPostTranslation extends Model 
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{
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    protected $table = 'post_translations';
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    public $timestamps = false;
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    protected $fillable = ['title', 'content'];  
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}
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This will try to get data from post_translations table using foreign key child_post_id according to Laravel. So, in this case, you will have to change the property $translationForeignKey to your 'post_id'.
ChildPost.php
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class ChildPost extends Post 
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{
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    protected $table = 'posts';
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    protected $translationForeignKey = 'post_id';
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}
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