/**
* @return \yii\db\ActiveQuery
*/
public function getCategories()
{
return $this->hasMany(Category::className(), ['id' => 'category_id'])->viaTable('category_has_post', ['post_id' => 'id']);
}
public function beforeValidate()
{
$this->updateTimestamps();
return parent::beforeValidate();
}
/**
* @return \yii\db\ActiveQuery
*/
public function getCategories()
{
return $this->hasMany(Category::className(), ['parent_id' => 'id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getCategory()
{
return $this->hasOne(Category::className(), ['id' => 'category_id']);
}