Include personally enrolled courses in student course listings

src/Jiaowu.Api/Controllers/CoursesController.cs

@@ -340,11 +340,17 @@ public sealed class CoursesController(
             isTeacher && db.TeachingTasks.Any(task =>
                 task.CourseId == course.Id &&
                 task.Teachers.Any(item => item.Teacher!.UserId == userId)) ||
-            isStudent && db.TeachingTasks.Any(task =>
-                task.CourseId == course.Id &&
-                task.Classes.Any(item =>
-                    item.AdministrativeClass!.Students.Any(student =>
-                        student.UserId == userId))));
+            isStudent && (
+                db.TeachingTasks.Any(task =>
+                    task.CourseId == course.Id &&
+                    task.Classes.Any(item =>
+                        item.AdministrativeClass!.Students.Any(student =>
+                            student.UserId == userId))) ||
+                db.CourseEnrollments.Any(enrollment =>
+                    enrollment.Status == CourseEnrollmentStatus.Enrolled &&
+                    enrollment.Student!.UserId == userId &&
+                    enrollment.CourseSelectionOffering!.TeachingTask!.CourseId ==
+                        course.Id)));
     }
 
     private bool CanManage(Guid collegeId, CourseNature nature)

tests/Jiaowu.Api.Tests/CoursesControllerTests.cs

@@ -101,6 +101,84 @@ public sealed class CoursesControllerTests
         Assert.Contains("OTHER-001", courses);
     }
 
+    [Fact]
+    public async Task Student_Get_IncludesCourseFromActivePersonalEnrollment()
+    {
+        await using var connection = new SqliteConnection("Data Source=:memory:");
+        await connection.OpenAsync();
+        var options = new DbContextOptionsBuilder<AppDbContext>()
+            .UseSqlite(connection)
+            .Options;
+        await using var db = new AppDbContext(options);
+        await db.Database.EnsureCreatedAsync();
+
+        var studentUserId = Guid.NewGuid();
+        var college = new College { Code = "CS", Name = "计算机学院" };
+        var major = new Major
+        {
+            Code = "CS01", Name = "软件工程", CollegeId = college.Id, DegreeType = "本科"
+        };
+        var administrativeClass = new AdministrativeClass
+        {
+            Code = "SE2601", Name = "软件 2601", MajorId = major.Id, Grade = 2026
+        };
+        var student = new Student
+        {
+            StudentNumber = "20260001", Name = "测试学生", UserId = studentUserId,
+            AdministrativeClassId = administrativeClass.Id,
+            EnrollmentDate = new DateOnly(2026, 9, 1)
+        };
+        var category = new CourseCategory { Code = "CORE", Name = "核心课程" };
+        var selectedCourse = new Course
+        {
+            Code = "CS102", Name = "数据结构", CollegeId = college.Id,
+            CourseCategoryId = category.Id, Nature = CourseNature.MajorElective,
+            Credits = 3, TotalHours = 48, IsEnabled = true
+        };
+        var term = new AcademicTerm
+        {
+            Code = "2026-1", Name = "2026-2027-1", AcademicYear = "2026-2027",
+            Season = TermSeason.Autumn, StartDate = new DateOnly(2026, 9, 1),
+            EndDate = new DateOnly(2027, 1, 31), IsCurrent = true
+        };
+        var task = new TeachingTask
+        {
+            TaskNumber = "T-CS102", Name = "数据结构选课班", AcademicTermId = term.Id,
+            CourseId = selectedCourse.Id, Capacity = 50, Status = TeachingTaskStatus.Published
+        };
+        var round = new CourseSelectionRound
+        {
+            AcademicTermId = term.Id, Name = "第一轮", StartsAt = DateTime.UtcNow,
+            EndsAt = DateTime.UtcNow.AddDays(1), WithdrawalEndsAt = DateTime.UtcNow.AddDays(2)
+        };
+        var offering = new CourseSelectionOffering
+        {
+            CourseSelectionRoundId = round.Id, TeachingTaskId = task.Id, Capacity = 50
+        };
+        db.AddRange(college, major, administrativeClass, student, category, selectedCourse,
+            new ApplicationUser
+            {
+                Id = studentUserId, UserName = "20260001", DisplayName = "测试学生"
+            },
+            term, task, round, offering,
+            new CourseEnrollment
+            {
+                CourseSelectionOfferingId = offering.Id, StudentId = student.Id,
+                Status = CourseEnrollmentStatus.Enrolled
+            });
+        await db.SaveChangesAsync();
+
+        var controller = new CoursesController(
+            db, new StudentDataScope(studentUserId), NoOpAppCache.Instance);
+
+        var result = await controller.Get(cancellationToken: CancellationToken.None);
+
+        var ok = Assert.IsType<OkObjectResult>(result.Result);
+        var page = Assert.IsType<PagedResult<object>>(ok.Value);
+        Assert.Equal(1, page.Total);
+        Assert.Contains("CS102", JsonSerializer.Serialize(page.Items));
+    }
+
     private sealed class TestDataScope(Guid collegeId) : ICurrentUserDataScope
     {
         public CurrentUserScope Current { get; } = new(
@@ -110,4 +188,14 @@ public sealed class CoursesControllerTests
             DataScope.College,
             new HashSet<string>([SystemRoles.CollegeAdmin]));
     }
+
+    private sealed class StudentDataScope(Guid userId) : ICurrentUserDataScope
+    {
+        public CurrentUserScope Current { get; } = new(
+            userId,
+            "测试学生",
+            null,
+            DataScope.Self,
+            new HashSet<string>([SystemRoles.Student]));
+    }
 }