fix: calculate attendance for all days up to today const declaration

Author: CK-7vn

backend/src/database/events_attendance.go

@@ -414,3 +414,35 @@ func (db *DB) CreateAttendanceAuditTrail(ctx context.Context, att *models.Progra
 
 	return nil
 }
+
+func (db *DB) GetCumulativeAttendanceRateForClass(ctx context.Context, classID int) (float64, error) {
+	var attendanceRate float64
+	today := time.Now().Format("2006-01-02")
+	sql := `
+	WITH attendance_credits AS (
+		SELECT
+			pcea.id,
+			CASE
+				WHEN pcea.attendance_status = 'present' THEN 1.0
+				WHEN pcea.attendance_status = 'partial' THEN LEAST(
+					COALESCE(pcea.minutes_attended, pcea.scheduled_minutes, 0)::numeric /
+					NULLIF(COALESCE(pcea.scheduled_minutes, pcea.minutes_attended, 0), 0),
+					1
+				)
+				ELSE 0
+			END as credit
+		FROM program_class_event_attendance pcea
+		INNER JOIN program_class_events pce ON pce.id = pcea.event_id
+		WHERE pce.class_id = ? AND pcea.date <= ?
+	)
+	SELECT COALESCE(
+		(SELECT SUM(credit) FROM attendance_credits) * 100.0 /
+		NULLIF((SELECT COUNT(*) FROM attendance_credits), 0),
+		0
+	) as attendance_percentage`
+
+	if err := db.WithContext(ctx).Raw(sql, classID, today).Scan(&attendanceRate).Error; err != nil {
+		return 0, newNotFoundDBError(err, "program_class_event_attendance")
+	}
+	return attendanceRate, nil
+}

backend/src/handlers/classes_handler.go

@@ -37,6 +37,7 @@ func (srv *Server) registerClassesRoutes() []routeDef {
 		adminValidatedFeatureRoute("GET /api/programs/{program_id}/classes/outcomes", srv.handleGetProgramClassOutcomes, axx, validateFacility("")),
 		adminValidatedFeatureRoute("GET /api/program-classes/{class_id}/attendance-flags", srv.handleGetAttendanceFlagsForClass, axx, resolver),
 		adminValidatedFeatureRoute("GET /api/program-classes/{class_id}/missing-attendance", srv.handleGetMissingAttendance, axx, resolver),
+		adminValidatedFeatureRoute("GET /api/program-classes/{class_id}/attendance-rate", srv.handleGetCumulativeAttendanceRate, axx, resolver),
 		adminValidatedFeatureRoute("GET /api/program-classes/{class_id}/history", srv.handleGetClassHistory, axx, resolver),
 		adminValidatedFeatureRoute("PATCH /api/program-classes", srv.handleUpdateClasses, axx, func(tx *database.DB, r *http.Request) bool {
 			var programClass models.ProgramClass
@@ -267,3 +268,18 @@ func (srv *Server) handleGetMissingAttendance(w http.ResponseWriter, r *http.Req
 	}
 	return writeJsonResponse(w, http.StatusOK, totalMissing)
 }
+
+func (srv *Server) handleGetCumulativeAttendanceRate(w http.ResponseWriter, r *http.Request, log sLog) error {
+	classID, err := strconv.Atoi(r.PathValue("class_id"))
+	if err != nil {
+		return newInvalidIdServiceError(err, "class ID")
+	}
+	attendanceRate, err := srv.Db.GetCumulativeAttendanceRateForClass(r.Context(), classID)
+	if err != nil {
+		return newDatabaseServiceError(err)
+	}
+	response := map[string]float64{
+		"attendance_rate": attendanceRate,
+	}
+	return writeJsonResponse(w, http.StatusOK, response)
+}

frontend/src/Pages/EventAttendance.tsx

@@ -157,6 +157,9 @@ export default function EventAttendance() {
         return { check_in_at: start, check_out_at: end };
     };
 
+    const isPresentLike = (status?: Attendance) =>
+        status === Attendance.Present || status === Attendance.Partial;
+
     const getAttendedMinutes = (row: LocalRowData) => {
         if (!isPresentLike(row.attendance_status)) {
             return null;
@@ -255,9 +258,6 @@ export default function EventAttendance() {
         );
     }
 
-    const isPresentLike = (status?: Attendance) =>
-        status === Attendance.Present || status === Attendance.Partial;
-
     const handleSearch = (search: string) => {
         startTransition(() => {
             setSearchTerm(search);

frontend/src/routeLoaders.ts

@@ -226,9 +226,9 @@ export const getClassMgmtData: LoaderFunction = async ({
         if (classResp.data.status === SelectedClassStatus.Scheduled) {
             attendanceRate = 0;
             missingAttendance = 0;
-        } else if (cls.events && cls.events.length > 0) {
+        } else {
             const resp2 = (await API.get(
-                `program-classes/${class_id}/events/${cls.events[0].id}/attendance-rate`
+                `program-classes/${class_id}/attendance-rate`
             )) as ServerResponseOne<{ attendance_rate: number }>;
             attendanceRate = resp2.success ? resp2.data.attendance_rate : 0;
             const resp3 = (await API.get(