v2.2更新

backend/models/student.py

@@ -53,6 +53,18 @@ class StudentModel:
         sql += " ORDER BY student_no"
         return await execute_query(sql)
     
+    @staticmethod
+    async def get_dormitory_list() -> List[str]:
+        """获取所有不重复的宿舍号列表"""
+        sql = """
+            SELECT DISTINCT dormitory_number
+            FROM students
+            WHERE status = 1 AND dormitory_number IS NOT NULL AND dormitory_number != ''
+            ORDER BY dormitory_number
+        """
+        rows = await execute_query(sql)
+        return [row["dormitory_number"] for row in rows]
+    
     @staticmethod
     async def create(
         student_no: str,