diff --git a/server-api/db/src/common.rs b/server-api/db/src/common.rs
index f900e67..22669bd 100644
--- a/server-api/db/src/common.rs
+++ b/server-api/db/src/common.rs
@@ -35,7 +35,7 @@ macro_rules! sql_err_log {
  * */
 
 #[async_trait]
-pub trait FromDB<T> {
+pub trait FromDB<T, FilterType> {
     type Row;
 
     async fn get(p: &Pool, id: UBigInt) -> Response<T>;
@@ -43,4 +43,6 @@ pub trait FromDB<T> {
     async fn update(p: &Pool, row: T) -> Response<T>;
 
     async fn delete(p: &Pool, id: UBigInt) -> Response<T>;
+
+    async fn filter(p: &Pool, filter_val: FilterType) -> Response<T>;
 }