Updated the grading system to work based on entities

src/pages/statistical.tsx

@@ -78,6 +78,7 @@ export default function Statistical({ user, students, entities, assignments, ses
 	const [startDate, setStartDate] = useState<Date>(new Date());
 	const [endDate, setEndDate] = useState<Date | null>(moment().add(1, 'month').toDate());
 	const [selectedEntities, setSelectedEntities] = useState<string[]>([])
+	const [isDownloading, setIsDownloading] = useState(false)
 
 	const resetDateRange = () => {
 		const orderedAssignments = orderBy(assignments, ['startDate'], ['asc'])
@@ -137,6 +138,8 @@ export default function Statistical({ user, students, entities, assignments, ses
 	}), [data])
 
 	const downloadExcel = async () => {
+		setIsDownloading(true)
+
 		const request = await axios.post("/api/statistical", {
 			entities: entities.filter(e => selectedEntities.includes(e.id)),
 			items: data,
@@ -156,6 +159,8 @@ export default function Statistical({ user, students, entities, assignments, ses
 
 		document.body.removeChild(link);
 		URL.revokeObjectURL(href);
+
+		setIsDownloading(false)
 	}
 
 	const columns = [
@@ -189,17 +194,7 @@ export default function Statistical({ user, students, entities, assignments, ses
 					{capitalize(session.exam?.module || "")} Module, Part {session.partIndex + 1}, Exercise {session.exerciseIndex + 1}
 				</span>
 			},
-		}),
-		columnHelper.accessor("result", {
-			header: "Score",
-			cell: (info) => {
-				if (!info.getValue()) return null
-				const correct = info.getValue()!.stats.filter(x => !x.isPractice).reduce((acc, curr) => acc + curr.score.correct, 0)
-				const total = info.getValue()!.stats.filter(x => !x.isPractice).reduce((acc, curr) => acc + curr.score.total, 0)
-
-				return `${correct} / ${total}`
-			},
-		}),
+		})
 	]
 
 	return (
@@ -290,6 +285,7 @@ export default function Statistical({ user, students, entities, assignments, ses
 						searchFields={[["student", "name"], ["student", "email"], ["student", "studentID"], ["exams", "id"], ["assignment", "name"]]}
 						searchPlaceholder="Search by student, assignment or exam..."
 						onDownload={downloadExcel}
+						isDownloadLoading={isDownloading}
 					/>
 				)}
 			</Layout>