update

account/api.py

@@ -6,6 +6,7 @@ from ninja.pagination import paginate
 from ninja.errors import HttpError
 from .schemas import (
     BatchUsersIn,
+    ClassStudentEntry,
     LeaderboardEntry,
     UserListSchema,
     UserRegistrationSchema,
@@ -96,7 +97,7 @@ def batch_create(request, payload: BatchUsersIn):
     # 批量创建用户
     for username in usernames:
         password = generate_password()
-        user = User(username=username)
+        user = User(username=username, classname=payload.classname)
         user.set_password(password)
         users_to_create.append(user)
 
@@ -135,3 +136,28 @@ def leaderboard(request):
         LeaderboardEntry(rank=i + 1, username=p.user.username, total_score=p.total_score)
         for i, p in enumerate(profiles)
     ]
+
+
+@router.get("/classes", response=List[str])
+def list_classes(request):
+    """返回所有不重复的非空班级名列表，按字典序升序"""
+    return (
+        User.objects.filter(classname__gt="")
+        .values_list("classname", flat=True)
+        .distinct()
+        .order_by("classname")
+    )
+
+
+@router.get("/names", response=List[ClassStudentEntry])
+def list_names_by_class(request, classname: str):
+    """返回指定班级的学生姓名和用户名列表"""
+    prefix = "web" + classname
+    users = User.objects.filter(
+        classname=classname,
+        username__startswith=prefix,
+    ).order_by("username")
+    return [
+        ClassStudentEntry(name=u.username[len(prefix):], username=u.username)
+        for u in users
+    ]

account/migrations/0003_user_classname.py

@@ -0,0 +1,18 @@
+# Generated by Django 6.0.1 on 2026-03-18 02:33
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0002_alter_profile_total_score'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='classname',
+            field=models.CharField(blank=True, default='', max_length=50, verbose_name='班级'),
+        ),
+    ]

account/models.py

@@ -27,6 +27,12 @@ class User(AbstractUser):
         blank=True,
         verbose_name="明文密码",
     )
+    classname = models.CharField(
+        max_length=50,
+        blank=True,
+        default="",
+        verbose_name="班级",
+    )
 
     def save(self, *args, **kwargs):
         if self.username:

account/schemas.py

@@ -52,3 +52,8 @@ class LeaderboardEntry(Schema):
     rank: int
     username: str
     total_score: float
+
+
+class ClassStudentEntry(Schema):
+    name: str
+    username: str