/**
* @return \yii\db\ActiveQuery
*/
public function getArticleItems()
{
return $this->hasMany(ArticleItems::className(), ['catid' => 'id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getItem()
{
return $this->hasOne(ArticleItems::className(), ['id' => 'itemid']);
}