public static function createProjectTypes($builderId, $projectTypeIds)
 {
     $result = true;
     foreach ($projectTypeIds as $projectTypeId) {
         $userProjectType = new UserBuilderProjectType();
         $userProjectType->builder_id = $builderId;
         $userProjectType->project_type_id = $projectTypeId;
         $result = $result && $userProjectType->save();
     }
     return $result;
 }