spatie/laravel-translatable

A trait to make an Eloquent model hold translations

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5.0.3 2021-10-04 14:59 UTC

README

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This package contains a trait to make Eloquent models translatable. Translations are stored as json. There is no extra table needed to hold them.

Once the trait is installed on the model you can do these things:

$newsItem = new NewsItem; // This is an Eloquent model
$newsItem
   ->setTranslation('name', 'en', 'Name in English')
   ->setTranslation('name', 'nl', 'Naam in het Nederlands')
   ->save();

$newsItem->name; // Returns 'Name in English' given that the current app locale is 'en'
$newsItem->getTranslation('name', 'nl'); // returns 'Naam in het Nederlands'

app()->setLocale('nl');

$newsItem->name; // Returns 'Naam in het Nederlands'

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Installation

You can install the package via composer:

composer require spatie/laravel-translatable

If you want to have another fallback_locale than the app fallback locale (see config/app.php), you could publish the config file:

php artisan vendor:publish --provider="Spatie\Translatable\TranslatableServiceProvider"

This is the contents of the published file:

return [
  'fallback_locale' => 'en',
];

Making a model translatable

The required steps to make a model translatable are:

  • First, you need to add the Spatie\Translatable\HasTranslations-trait.
  • Next, you should create a public property $translatable which holds an array with all the names of attributes you wish to make translatable.
  • Finally, you should make sure that all translatable attributes are set to the text-datatype in your database. If your database supports json-columns, use that.

Here's an example of a prepared model:

use Illuminate\Database\Eloquent\Model;
use Spatie\Translatable\HasTranslations;

class NewsItem extends Model
{
    use HasTranslations;

    public $translatable = ['name'];
}

Available methods

Getting a translation

The easiest way to get a translation for the current locale is to just get the property for the translated attribute. For example (given that name is a translatable attribute):

$newsItem->name;

You can also use this method:

public function getTranslation(string $attributeName, string $locale, bool $useFallbackLocale = true) : string

This function has an alias named translate.

Getting all translations

You can get all translations by calling getTranslations() without an argument:

$newsItem->getTranslations();

Or you can use the accessor

$yourModel->translations

Setting a translation

The easiest way to set a translation for the current locale is to just set the property for a translatable attribute. For example (given that name is a translatable attribute):

$newsItem->name = 'New translation';

Also you can set translations with

$newItem->name = ['en' => 'myName', 'nl' => 'Naam in het Nederlands'];

To set a translation for a specific locale you can use this method:

public function setTranslation(string $attributeName, string $locale, string $value)

To actually save the translation, don't forget to save your model.

$newsItem->setTranslation('name', 'en', 'Updated name in English');

$newsItem->save();

Validation

  • if you want to validate an attribute for uniqueness before saving/updating the db, you might want to have a look at laravel-unique-translation which is made specifically for laravel-translatable.

Forgetting a translation

You can forget a translation for a specific field:

public function forgetTranslation(string $attributeName, string $locale)

You can forget all translations for a specific locale:

public function forgetAllTranslations(string $locale)

Getting all translations in one go

public function getTranslations(string $attributeName): array

Getting the specified translations in one go

You can filter the translations by passing an array of locales:

public function getTranslations(string $attributeName, array $allowedLocales): array

Here's an example:

$translations = [
    'en' => 'Hello',
    'fr' => 'Bonjour',
    'de' => 'Hallo',
];

$newsItem->setTranslations('hello', $translations);
$newsItem->getTranslations('hello', ['en', 'fr']); // returns ['en' => 'Hello', 'fr' => 'Bonjour']

Setting translations in one go

public function setTranslations(string $attributeName, array $translations)

Here's an example:

$translations = [
   'en' => 'Name in English',
   'nl' => 'Naam in het Nederlands'
];

$newsItem->setTranslations('name', $translations);

Replace translations in one go

You can replace all the translations for a single key using this method:

public function replaceTranslations(string $key, array $translations)

Here's an example:

$translations = ['en' => 'hello', 'es' => 'hola'];

$newsItem->setTranslations('hello', $translations);
$newsItem->getTranslations(); // ['en' => 'hello', 'es' => 'hola']

$newTranslations = ['en' => 'hello'];

$newsItem->replaceTranslations('hello', $newTranslations);
$newsItem->getTranslations(); // ['en' => 'hello']

Setting the model locale

The default locale used to translate models is the application locale, however it can sometimes be handy to use a custom locale.

To do so, you can use setLocale on a model instance.

$newsItem = NewsItem::firstOrFail()->setLocale('fr');

// Any properties on this model will automaticly be translated in French
$newsItem->name; // Will return `fr` translation
$newsItem->name = 'Actualité'; // Will set the `fr` translation

Alternatively, you can use usingLocale static method:

// Will automatically set the `fr` translation
$newsItem = NewsItem::usingLocale('fr')->create([
    'name' => 'Actualité',
]);

Events

TranslationHasBeenSet

Right after calling setTranslation the Spatie\Translatable\Events\TranslationHasBeenSet-event will be fired.

It has these properties:

/** @var \Illuminate\Database\Eloquent\Model */
public $model;

/** @var string  */
public $attributeName;

/** @var string  */
public $locale;

public $oldValue;
public $newValue;

Creating models

You can immediately set translations when creating a model. Here's an example:

NewsItem::create([
   'name' => [
      'en' => 'Name in English',
      'nl' => 'Naam in het Nederlands'
   ],
]);

Querying translatable attributes

If you're using MySQL 5.7 or above, it's recommended that you use the json data type for housing translations in the db. This will allow you to query these columns like this:

NewsItem::where('name->en', 'Name in English')->get();

Or if you're using MariaDB 10.2.3 or above :

NewsItem::whereRaw("JSON_EXTRACT(name, '$.en') = 'Name in English'")->get();

Automatically display the right translation when displaying model

Many times models using HasTranslation trait may be directly returned as response content. In this scenario, and similar ones, the toArray() method on Model class is called under the hood to serialize your model; it accesses directly the $attributes field to perform the serialization, bypassing the translatable feature (which is based on accessors and mutators) and returning the text representation of the stored JSON instead of the translated value.

The best way to make your model automatically return translated fields is to wrap Spatie\Translatable\HasTranslations trait into a custom trait which overrides the toArray() method to automatically replace all translatable fields content with their translated value, like in the following example, and use it instead of the default one.

namespace App\Traits;
use Spatie\Translatable\HasTranslations as BaseHasTranslations;
trait HasTranslations
{
    use BaseHasTranslations;
    /**
     * Convert the model instance to an array.
     *
     * @return array
     */
    public function toArray()
    {
        $attributes = parent::toArray();
        foreach ($this->getTranslatableAttributes() as $field) {
            $attributes[$field] = $this->getTranslation($field, \App::getLocale());
        }
        return $attributes;
    }
}

Changelog

Please see CHANGELOG for more information what has changed recently.

Upgrading

From v2 to v3

In most cases you can upgrade without making any changes to your codebase at all. v3 introduced a translations accessor on your models. If you already had one defined on your model, you'll need to rename it.

Testing

composer test

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email freek@spatie.be instead of using the issue tracker.

Postcardware

You're free to use this package, but if it makes it to your production environment we highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using.

Our address is: Spatie, Kruikstraat 22, 2018 Antwerp, Belgium.

We publish all received postcards on our company website.

Credits

We got the idea to store translations as json in a column from Mohamed Said. Parts of the readme of his multilingual package were used in this readme.

License

The MIT License (MIT). Please see License File for more information.