/**
* @return \yii\db\ActiveQuery
*/
public function getPrevSection()
{
return $this->hasOne(Section::className(), ['id' => 'prev']);
}
/**
* @return ActiveQuery
*/
public function getSections()
{
return $this->hasMany(Section::className(), ['category_id' => 'id']);
}
/**
* @return ActiveQuery
*/
public function getSection()
{
return $this->hasOne(Section::className(), ['id' => 'section_id']);
}
/**
* @return ActiveQuery
*/
public function getChildren()
{
return $this->hasMany(Section::className(), ['section_id' => 'id'])->inverseOf('parent');
}
