自动排考

src/Jiaowu.Api/Controllers/ExamsController.cs

@@ -108,8 +108,21 @@ public sealed class ExamsController(
     }
 
     [HttpGet("plans/{id:guid}")]
-    public async Task<ActionResult> GetPlan(Guid id, CancellationToken cancellationToken)
+    public async Task<ActionResult> GetPlan(
+        Guid id,
+        int page = 1,
+        int pageSize = 20,
+        string? keyword = null,
+        string? allocation = null,
+        CancellationToken cancellationToken = default)
     {
+        page = Math.Max(1, page);
+        pageSize = Math.Clamp(pageSize, 10, 100);
+        keyword = Normalize(keyword);
+        allocation = Normalize(allocation)?.ToLowerInvariant();
+        if (allocation is not null and not ("room" or "invigilator" or "complete"))
+            return ValidationProblem("分配状态筛选值无效。");
+
         var manager = IsManager();
         var plan = await db.ExamPlans.AsNoTracking()
             .Where(x => x.Id == id && (manager || x.Status == ExamPlanStatus.Published))
@@ -122,8 +135,53 @@ public sealed class ExamsController(
                 x.Status,
                 x.Notes,
                 x.PublishedAt,
-                Sessions = x.Sessions.OrderBy(item => item.ExamDate)
-                    .ThenBy(item => item.StartPeriod).Select(item => new
+                TotalSessionCount = x.Sessions.Count
+            }).FirstOrDefaultAsync(cancellationToken);
+        if (plan is null) return NotFound();
+
+        var sessionQuery = db.ExamSessions.AsNoTracking()
+            .Where(x => x.ExamPlanId == id);
+        if (keyword is not null)
+        {
+            sessionQuery = sessionQuery.Where(x =>
+                x.TeachingTask!.TaskNumber.Contains(keyword) ||
+                x.TeachingTask.Name.Contains(keyword) ||
+                x.TeachingTask.Course!.Code.Contains(keyword) ||
+                x.TeachingTask.Course.Name.Contains(keyword));
+        }
+
+        sessionQuery = allocation switch
+        {
+            "room" => sessionQuery.Where(x =>
+                !x.RoomLinks.Any() && !x.ClassroomId.HasValue),
+            "invigilator" => sessionQuery.Where(x =>
+                (x.RoomLinks.Any() && x.RoomLinks.Any(link =>
+                    link.ExamRoom!.Invigilators.Count <
+                    x.RequiredInvigilatorCount)) ||
+                (!x.RoomLinks.Any() &&
+                 x.Invigilators.Count < x.RequiredInvigilatorCount)),
+            "complete" => sessionQuery.Where(x =>
+                (x.RoomLinks.Any() || x.ClassroomId.HasValue) &&
+                ((x.RoomLinks.Any() && x.RoomLinks.All(link =>
+                      link.ExamRoom!.Invigilators.Count >=
+                      x.RequiredInvigilatorCount)) ||
+                 (!x.RoomLinks.Any() &&
+                  x.Invigilators.Count >= x.RequiredInvigilatorCount))),
+            _ => sessionQuery
+        };
+
+        var filteredSessionCount = await sessionQuery.CountAsync(cancellationToken);
+        var lastPage = Math.Max(1,
+            (int)Math.Ceiling(filteredSessionCount / (double)pageSize));
+        page = Math.Min(page, lastPage);
+        var sessions = await sessionQuery
+            .OrderBy(item => item.ExamDate)
+            .ThenBy(item => item.StartPeriod)
+            .ThenBy(item => item.TeachingTask!.TaskNumber)
+            .ThenBy(item => item.Id)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
+            .Select(item => new
             {
                 item.Id,
                 item.TeachingTaskId,
@@ -133,8 +191,12 @@ public sealed class ExamsController(
                 CourseName = item.TeachingTask.Course.Name,
                 item.ClassroomId,
                 ClassroomName = item.Classroom != null ? item.Classroom.Name : null,
-                        BuildingName = item.Classroom != null ? item.Classroom.Building!.Name : null,
-                        ClassroomCapacity = item.Classroom != null ? (int?)item.Classroom.Capacity : null,
+                BuildingName = item.Classroom != null
+                    ? item.Classroom.Building!.Name
+                    : null,
+                ClassroomCapacity = item.Classroom != null
+                    ? (int?)item.Classroom.Capacity
+                    : null,
                 item.ExamDate,
                 item.StartPeriod,
                 item.PeriodCount,
@@ -142,51 +204,88 @@ public sealed class ExamsController(
                 item.EndsAt,
                 item.RequiredBuildingId,
                 RequiredBuildingName = item.RequiredBuilding != null
-                        ? item.RequiredBuilding.Name : null,
+                    ? item.RequiredBuilding.Name
+                    : null,
                 item.RequiredInvigilatorCount,
                 item.Notes,
                 InvigilatorIds = item.Invigilators.Select(i => i.TeacherId),
                 InvigilatorNames = item.Invigilators.Select(i => i.Teacher!.Name)
             })
-            }).FirstOrDefaultAsync(cancellationToken);
-        if (plan is null) return NotFound();
-
-        var roomEntities = await db.ExamRooms.AsNoTracking()
-            .Include(x => x.Classroom)
-                .ThenInclude(x => x!.Building)
-            .Include(x => x.SessionLinks)
-            .Include(x => x.Seats)
-            .Include(x => x.Invigilators)
-                .ThenInclude(x => x.Teacher)
-            .Where(x => x.ExamPlanId == id)
             .ToListAsync(cancellationToken);
-        var roomsBySession = roomEntities
-            .SelectMany(room => room.SessionLinks.Select(link => new
+        var pageSessionIds = sessions.Select(x => x.Id).ToArray();
+        var scheduledTeachingTaskIds = await db.ExamSessions.AsNoTracking()
+            .Where(x => x.ExamPlanId == id)
+            .OrderBy(x => x.TeachingTaskId)
+            .Select(x => x.TeachingTaskId)
+            .ToListAsync(cancellationToken);
+
+        var roomSessionLinks = await db.ExamRoomSessions.AsNoTracking()
+            .WhereIn(pageSessionIds, x => x.ExamSessionId)
+            .Select(x => new
+            {
+                x.ExamRoomId,
+                x.ExamSessionId,
+                SeatCount = x.ExamRoom!.Seats.Count(seat =>
+                    seat.ExamSessionId == x.ExamSessionId)
+            })
+            .ToListAsync(cancellationToken);
+        var pageRoomIds = roomSessionLinks.Select(x => x.ExamRoomId).Distinct().ToArray();
+        var roomSummaries = await db.ExamRooms.AsNoTracking()
+            .WhereIn(pageRoomIds, x => x.Id)
+            .OrderBy(x => x.Classroom!.Building!.Name)
+            .ThenBy(x => x.Classroom!.Name)
+            .ThenBy(x => x.Id)
+            .Select(x => new
+            {
+                ExamRoomId = x.Id,
+                x.ClassroomId,
+                ClassroomName = x.Classroom!.Name,
+                BuildingName = x.Classroom.Building!.Name,
+                ClassroomCapacity = x.Classroom.Capacity,
+                TotalSeatCount = x.Seats.Count,
+                SessionCount = x.SessionLinks.Count
+            })
+            .ToListAsync(cancellationToken);
+        var roomInvigilators = await db.ExamRoomInvigilators.AsNoTracking()
+            .WhereIn(pageRoomIds, x => x.ExamRoomId)
+            .OrderBy(x => x.Teacher!.TeacherNumber)
+            .ThenBy(x => x.Teacher!.Name)
+            .Select(x => new
+            {
+                x.ExamRoomId,
+                x.TeacherId,
+                TeacherName = x.Teacher!.Name
+            })
+            .ToListAsync(cancellationToken);
+
+        var linksByRoom = roomSessionLinks.ToLookup(x => x.ExamRoomId);
+        var invigilatorsByRoom = roomInvigilators.ToLookup(x => x.ExamRoomId);
+        var roomsBySession = roomSummaries
+            .SelectMany(room => linksByRoom[room.ExamRoomId].Select(link => new
             {
                 link.ExamSessionId,
                 Room = new
                 {
-                    link.ExamRoomId,
+                    room.ExamRoomId,
                     room.ClassroomId,
-                    ClassroomName = room.Classroom!.Name,
-                    BuildingName = room.Classroom.Building!.Name,
-                    ClassroomCapacity = room.Classroom.Capacity,
-                    SeatCount = room.Seats.Count(seat =>
-                        seat.ExamSessionId == link.ExamSessionId),
-                    TotalSeatCount = room.Seats.Count,
-                    IsMixed = room.SessionLinks.Count > 1,
-                    InvigilatorIds = room.Invigilators
+                    room.ClassroomName,
+                    room.BuildingName,
+                    room.ClassroomCapacity,
+                    link.SeatCount,
+                    room.TotalSeatCount,
+                    IsMixed = room.SessionCount > 1,
+                    InvigilatorIds = invigilatorsByRoom[room.ExamRoomId]
                         .Select(invigilator => invigilator.TeacherId)
                         .ToList(),
-                    InvigilatorNames = room.Invigilators
-                        .Select(invigilator => invigilator.Teacher!.Name)
+                    InvigilatorNames = invigilatorsByRoom[room.ExamRoomId]
+                        .Select(invigilator => invigilator.TeacherName)
                         .ToList()
                 }
             }))
             .ToLookup(x => x.ExamSessionId, x => x.Room);
         var rosterCounts = (await TeachingTaskRosterQuery.LoadForTasksAsync(
                 db,
-                plan.Sessions.Select(x => x.TeachingTaskId),
+                sessions.Select(x => x.TeachingTaskId),
                 cancellationToken))
             .GroupBy(x => x.TeachingTaskId)
             .ToDictionary(x => x.Key, x => x.Count());
@@ -199,7 +298,12 @@ public sealed class ExamsController(
             plan.Status,
             plan.Notes,
             plan.PublishedAt,
-            Sessions = plan.Sessions.Select(item => new
+            plan.TotalSessionCount,
+            FilteredSessionCount = filteredSessionCount,
+            SessionPage = page,
+            SessionPageSize = pageSize,
+            ScheduledTeachingTaskIds = scheduledTeachingTaskIds,
+            Sessions = sessions.Select(item => new
             {
                 item.Id,
                 item.TeachingTaskId,

tests/Jiaowu.Api.Tests/ExamPlanPaginationTests.cs

@@ -0,0 +1,137 @@
+using Jiaowu.Api.Controllers;
+using Jiaowu.Api.Domain.Academic;
+using Jiaowu.Api.Domain.Identity;
+using Jiaowu.Api.Infrastructure.Auth;
+using Jiaowu.Api.Infrastructure.Caching;
+using Jiaowu.Api.Infrastructure.Exams;
+using Jiaowu.Api.Infrastructure.Persistence;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Data.Sqlite;
+using Microsoft.EntityFrameworkCore;
+
+namespace Jiaowu.Api.Tests;
+
+public sealed class ExamPlanPaginationTests
+{
+    [Fact]
+    public async Task GetPlan_PaginatesSearchesAndFiltersSessionsOnServer()
+    {
+        await using var connection = new SqliteConnection("Data Source=:memory:");
+        await connection.OpenAsync();
+        await using var db = new AppDbContext(
+            new DbContextOptionsBuilder<AppDbContext>()
+                .UseSqlite(connection)
+                .Options);
+        await db.Database.EnsureCreatedAsync();
+
+        var college = new College { Code = "CS", Name = "计算机学院" };
+        var course = new Course
+        {
+            Code = "CS101",
+            Name = "程序设计基础",
+            CollegeId = college.Id,
+            Credits = 4,
+            TotalHours = 64,
+            LectureHours = 48,
+            PracticeHours = 16,
+            Nature = CourseNature.MajorRequired,
+            AssessmentMethod = AssessmentMethod.Examination
+        };
+        var term = new AcademicTerm
+        {
+            Code = "2026-1",
+            Name = "2026—2027 学年第一学期",
+            AcademicYear = "2026-2027",
+            Season = TermSeason.Autumn,
+            StartDate = new DateOnly(2026, 9, 1),
+            EndDate = new DateOnly(2027, 1, 20)
+        };
+        var tasks = Enumerable.Range(1, 11)
+            .Select(number => new TeachingTask
+            {
+                TaskNumber = $"2026-1-CS101-{number:00}",
+                Name = number == 11 ? "专项课程教学班" : $"程序设计教学班 {number}",
+                AcademicTermId = term.Id,
+                CourseId = course.Id,
+                Capacity = 60,
+                Status = TeachingTaskStatus.Published
+            })
+            .ToList();
+        var plan = new ExamPlan
+        {
+            AcademicTermId = term.Id,
+            Name = "期末考试",
+            Status = ExamPlanStatus.Draft,
+            Sessions = tasks.Select((task, index) => new ExamSession
+            {
+                TeachingTaskId = task.Id,
+                ExamDate = new DateOnly(2027, 1, 8).AddDays(index),
+                StartPeriod = 1,
+                PeriodCount = 2,
+                StartsAt = new DateTime(2027, 1, 8, 8, 0, 0, DateTimeKind.Utc)
+                    .AddDays(index),
+                EndsAt = new DateTime(2027, 1, 8, 9, 50, 0, DateTimeKind.Utc)
+                    .AddDays(index),
+                RequiredInvigilatorCount = 1
+            }).ToList()
+        };
+        db.AddRange(college, course, term);
+        db.AddRange(tasks);
+        db.Add(plan);
+        await db.SaveChangesAsync();
+
+        var controller = new ExamsController(
+            db,
+            new AllScope(),
+            new ExamArrangementService(db),
+            NoOpAppCache.Instance);
+
+        var secondPage = ReadPlan(await controller.GetPlan(
+            plan.Id,
+            page: 2,
+            pageSize: 10,
+            cancellationToken: CancellationToken.None));
+        Assert.Equal(11, ReadInt(secondPage, "TotalSessionCount"));
+        Assert.Equal(11, ReadInt(secondPage, "FilteredSessionCount"));
+        Assert.Equal(2, ReadInt(secondPage, "SessionPage"));
+        Assert.Single(ReadItems(secondPage, "Sessions"));
+        Assert.Equal(11, ReadItems(secondPage, "ScheduledTeachingTaskIds").Count);
+
+        var searchPage = ReadPlan(await controller.GetPlan(
+            plan.Id,
+            keyword: "专项",
+            cancellationToken: CancellationToken.None));
+        Assert.Equal(11, ReadInt(searchPage, "TotalSessionCount"));
+        Assert.Equal(1, ReadInt(searchPage, "FilteredSessionCount"));
+        Assert.Single(ReadItems(searchPage, "Sessions"));
+
+        var completedPage = ReadPlan(await controller.GetPlan(
+            plan.Id,
+            allocation: "complete",
+            cancellationToken: CancellationToken.None));
+        Assert.Equal(0, ReadInt(completedPage, "FilteredSessionCount"));
+        Assert.Empty(ReadItems(completedPage, "Sessions"));
+    }
+
+    private static object ReadPlan(ActionResult result) =>
+        Assert.IsType<OkObjectResult>(result).Value!;
+
+    private static int ReadInt(object value, string property) =>
+        (int)value.GetType().GetProperty(property)!.GetValue(value)!;
+
+    private static List<object> ReadItems(object value, string property) =>
+        Assert.IsAssignableFrom<System.Collections.IEnumerable>(
+                value.GetType().GetProperty(property)!.GetValue(value))
+            .Cast<object>()
+            .ToList();
+
+    private sealed class AllScope : ICurrentUserDataScope
+    {
+        public CurrentUserScope Current { get; } = new(
+            Guid.NewGuid(),
+            "测试管理员",
+            null,
+            DataScope.All,
+            new HashSet<string>([SystemRoles.SuperAdmin]));
+    }
+}

tests/Jiaowu.Api.Tests/TeachingWorkflowRosterTests.cs

@@ -256,10 +256,27 @@ public sealed class TeachingWorkflowRosterTests
         Assert.IsType<NoContentResult>(publishResult);
 
         var planResult = Assert.IsType<OkObjectResult>(
-            await exams.GetPlan(examPlan.Id, CancellationToken.None));
+            await exams.GetPlan(
+                examPlan.Id,
+                cancellationToken: CancellationToken.None));
         var planSessions = ReadEnumerableProperty(planResult.Value!, "Sessions");
         Assert.Equal(1, ReadIntProperty(planSessions.Single(), "StudentCount"));
-        Assert.Single(ReadEnumerableProperty(planSessions.Single(), "ExamRooms"));
+        var returnedRoom = Assert.Single(
+            ReadEnumerableProperty(planSessions.Single(), "ExamRooms"));
+        Assert.Equal(
+            classroom.Id,
+            returnedRoom.GetType().GetProperty("ClassroomId")!.GetValue(returnedRoom));
+        Assert.Equal(1, ReadIntProperty(returnedRoom, "SeatCount"));
+        Assert.Equal(1, ReadIntProperty(returnedRoom, "TotalSeatCount"));
+        Assert.False(
+            (bool)returnedRoom.GetType().GetProperty("IsMixed")!
+                .GetValue(returnedRoom)!);
+        Assert.Equal(
+            [teacher.Id],
+            ReadEnumerableProperty(returnedRoom, "InvigilatorIds").Cast<Guid>());
+        Assert.Equal(
+            [teacher.Name],
+            ReadEnumerableProperty(returnedRoom, "InvigilatorNames").Cast<string>());
 
         var examSessionId = examPlan.Sessions.Single().Id;
         var rosterResult = Assert.IsType<OkObjectResult>(