筛选优化

src/Jiaowu.Api/Controllers/AttendanceController.cs

@@ -37,7 +37,8 @@ public sealed class AttendanceController(
         string? keyword = null,
         int page = 1,
         int pageSize = 20,
-        CancellationToken cancellationToken = default)
+        CancellationToken cancellationToken = default,
+        string? classKeyword = null)
     {
         page = Math.Max(1, page);
         pageSize = Math.Clamp(pageSize, 10, 50);
@@ -54,6 +55,14 @@ public sealed class AttendanceController(
                 x.Course!.Code.Contains(keyword) ||
                 x.Course.Name.Contains(keyword));
         }
+        if (!string.IsNullOrWhiteSpace(classKeyword))
+        {
+            classKeyword = classKeyword.Trim();
+            tasks = tasks.Where(x => x.Classes.Any(item =>
+                item.AdministrativeClass!.Code.Contains(classKeyword) ||
+                item.AdministrativeClass.Name.Contains(classKeyword) ||
+                item.AdministrativeClass.Major!.Name.Contains(classKeyword)));
+        }
         var total = await tasks.CountAsync(cancellationToken);
         var result = await tasks
             .OrderBy(x => x.Course!.Code)