common/modules/product/models/ProductLang.php

<?php
namespace common\modules\product\models;
use common\behaviors\Slug;
use common\modules\language\models\Language;
use Yii;
/**
 * This is the model class for table "product_lang".
 *
 * @property integer $product_id
 * @property integer $language_id
 * @property string $name
 * @property string $description
 * @property string $alias
 *
 * @property Language $language
 * @property Product $product
 */
class ProductLang extends \yii\db\ActiveRecord
{
    
    public static function primaryKey()
    {
        return [
            'product_id',
            'language_id',
        ];
    }
    
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'product_lang';
    }
    
    public function behaviors()
    {
        return [
            'slug'       => [
                'class'         => 'common\behaviors\Slug',
                'in_attribute'  => 'name',
                'out_attribute' => 'alias',
                'translit'      => true,
            ],
        ];
    }
    
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['name'], 'required'],
            [['description'], 'string'],
            [['name', 'alias'], 'string', 'max' => 255],
            [['product_id', 'language_id'], 'unique', 'targetAttribute' => ['product_id', 'language_id'], 'message' => 'The combination of Product ID and Language ID has already been taken.'],
            [['language_id'], 'exist', 'skipOnError' => true, 'targetClass' => Language::className(), 'targetAttribute' => ['language_id' => 'language_id']],
            [['product_id'], 'exist', 'skipOnError' => true, 'targetClass' => Product::className(), 'targetAttribute' => ['product_id' => 'product_id']],
        ];
    }
    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'product_id' => Yii::t('app', 'Product ID'),
            'language_id' => Yii::t('app', 'Language ID'),
            'name' => Yii::t('app', 'Name'),
            'description' => Yii::t('app', 'Description'),
            'alias' => Yii::t('app', 'Alias'),
        ];
    }
    /**
     * @return \yii\db\ActiveQuery
     */
    public function getLanguage()
    {
        return $this->hasOne(Language::className(), ['language_id' => 'language_id']);
    }
    /**
     * @return \yii\db\ActiveQuery
     */
    public function getProduct()
    {
        return $this->hasOne(Product::className(), ['product_id' => 'product_id']);
    }
}