Remove N+1 on register attendance page #2770

tvararu · 2024-12-17T09:47:37Z

The .select was causing a query for session_attendances based on today's @session_date.

Instead, we can more directly use two where clauses:

Either for patient sessions with no attendances
Or for patient sessions with attendances but not on today's date

The patient sessions need to be stored in an intermediate ps variable to maintain the joins from includes when using .or.

The `.select` was causing a query for `session_attendances` based on today's `@session_date`. Instead, we can more directly use two `where` clauses: - Either for patient sessions with no attendances - Or for patient sessions with attendances but not on today's date The patient sessions need to be stored in an intermediate `ps` variable to maintain the joins from `includes` when using `.or`.