Translation Behavior for Yii2
 
 , (*1)
, (*1)
Requirements
PHP 7, (*2)
Installation
composer require rkit/translation-behavior-yii2
Configuration
For example, we have a Post model and we want to add translation capability.
Let's do it., (*3)
- Add a post_translationtable and aPostTranslationmodel for the translation
$this->createTable('{{%post_translation}}', [
    'id' => $this->primaryKey(),
    'post_id' => $this->integer()->notNull()->defaultValue(0),
    'language' => $this->string(2)->notNull()->defaultValue(''),
    'title' => $this->string()->notNull()->defaultValue(''),
]);
- Add a TranslationBehaviorbehavior to thePostmodel
public function behaviors()
{
    return [
        'translationBehavior' => [
            'class' => 'rkit\translation\behavior\TranslationBehavior',
            'relationOne' => 'translation',
            'relationMany' => 'translations',
            'languageAttribute' => 'language',
            'defaultLanguage' => 'en',
            'attributes' => [ // attributes for translation
                'title',
            ],
        ],
    ];
}
- Add translationandtranslationsrelations (seerelationOneandrelationManyoptions in the behavior)
/**
 * @return \yii\db\ActiveQuery
 */
public function getTranslation()
{
    return $this
        ->hasOne(PostTranslation::class, ['post_id' => 'id'])
        ->andWhere(['language' => \Yii::$app->language]);
}
/**
 * @return \yii\db\ActiveQuery
 */
public function getTranslations()
{
    return $this->hasMany(PostTranslation::class, ['post_id' => 'id']);
}
Usage
Load translation
$model = new Post();
$model->loadTranslations([
    'en' => ['title' => 'example'],
    'ru' => ['title' => 'пример'],
]);
$model->save();
Get translation
For current language
$model = Post::find()->with('translation')->where(['id' => $id])->one();
echo $model->title;
All translation
$model = Post::find()->with('translations')->where(['id' => $id])->one();
echo $model->translate('en')->title;
echo $model->translate('ru')->title;
Remove translation
$model = new Post();
$model->loadTranslations([]);
$model->save();
Tests
Coding Standard