protected function studies(Department $department) {
        return $this->validateCollection($department->studiesActiveOn($this->period)->get());
    }
protected function studies(Department $department) {
        return $this->validateCollection($department->studiesActiveOn($this->period)->get());
    }
protected function studies ( Department $ department ) { return $ this -> validateCollection ( $ department -> studiesActiveOn ( $ this -> period ) -> get ( ) ) ; }
Get the studies to migrate.

@param Department $department
@return mixed
Get the studies to migrate .