/**
* @return \yii\db\ActiveQuery
*/
public function getDocumenttypes()
{
return $this->hasMany(Documenttype::className(), ['TopicTypeId' => 'TopicTypeId']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getDocumentType()
{
return $this->hasOne(Documenttype::className(), ['DocumentTypeId' => 'DocumentTypeId']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getDocumentTypes()
{
return $this->hasMany(Documenttype::className(), ['DocumentTypeId' => 'DocumentTypeId'])->viaTable('documenttypetopic', ['TopicId' => 'TopicId']);
}
