Added belongs_to to most of diesel structs for easier querying.

gamenight-database/src/gamenight_participants.rs

@@ -10,8 +10,8 @@ use super::DbConnection;
 use super::error::DatabaseError;
 
 #[derive(Serialize, Deserialize, Debug, Insertable, Queryable)]
-#[diesel(belongs_to(Gamenight))]
-#[diesel(belongs_to(User))]
+#[diesel(belongs_to(Gamenight, foreign_key=FK_gamenight_id))]
+#[diesel(belongs_to(User, foreign_key=FK_user_id))]
 #[diesel(table_name = gamenight_participant)]
 pub struct GamenightParticipant {
     pub gamenight_id: Uuid,