backend/models/ImportersPrefix.php

<?php
namespace backend\models;
use Yii;
use backend\models\Importers;
/**
 * This is the model class for table "w_importers_prefix".
 *
 * @property string $id
 * @property string $importer_id
 * @property string $brand
 * @property string $prefix
 * @property string $timestamp
 */
class ImportersPrefix extends \backend\components\base\BaseActiveRecord
{
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['importer_id', 'brand', 'prefix'], 'required'],
            [['importer_id'], 'integer'],
            [['timestamp'], 'safe'],
            [['brand'], 'string', 'max' => 100],
            [['prefix'], 'string', 'max' => 50],
            [['importer_id', 'brand', 'prefix'], 'unique', 'targetAttribute' => ['importer_id', 'brand', 'prefix'], 'message' => 'The combination of Importer ID, Brand and Prefix has already been taken.']
        ];
    }
    public function getImporterName ()
    {
        return Importers::findOne($this->importer_id)->name;
    }
    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => Yii::t('app', 'ID'),
            'importer_id' => Yii::t('app', 'Поставщик'),
            'brand' => Yii::t('app', 'Бренд'),
            'prefix' => Yii::t('app', 'Префикс'),
            'timestamp' => Yii::t('app', 'Дата создания'),
        ];
    }
}