add user requests

app/db/userrequest_oper.py

@@ -0,0 +1,42 @@
+from typing import Optional
+
+from app.db import DbOper
+from app.db.models.userrequest import UserRequest
+
+
+class UserRequestOper(DbOper):
+    """
+    用户请求管理
+    """
+
+    def get_need_approve(self) -> Optional[UserRequest]:
+        """
+        获取待审批申请
+        """
+        return UserRequest.get_by_status(self._db, 0)
+
+    def get_my_requests(self, username: str) -> Optional[UserRequest]:
+        """
+        获取我的申请
+        """
+        return UserRequest.get_by_req_user(self._db, username)
+
+    def approve(self, rid: int) -> bool:
+        """
+        审批申请
+        """
+        user_request = UserRequest.get(self._db, rid)
+        if user_request:
+            user_request.update(self._db, {"status": 1})
+            return True
+        return False
+
+    def deny(self, rid: int) -> bool:
+        """
+        拒绝申请
+        """
+        user_request = UserRequest.get(self._db, rid)
+        if user_request:
+            user_request.update(self._db, {"status": 2})
+            return True
+        return False