MongoDB をデータベースとして、pymongo をドライバーとして Flask を使用しています。オブジェクトを JSON にシリアル化する際に、常に言うように、、、およびその他多くの問題json.dumps()
がjson.loads()
ありjson_util.dumps()
ますTypeError: Object of type 'EachRoom' is not JSON serializable
。jsonpickle
オブジェクトを JSON にシリアル化するために呼び出されるライブラリを見つけました。田んぼ以外は予定通り順調に進んでいObjectId
ます。bytes
データ型を確認すると、型として表示されます。これは私のコードです:
class EachRoom:
def __init__(self, id, rooms):
self.id = id
self.rooms = rooms
class Room(object):
@classmethod
def return_all_by_user(cls):
cursor_user = mongo.db.rooms.distinct('user_id')
users = []
for row in cursor_user:
print(str(row))
cursor_room = mongo.db.rooms.find({'user_id': ObjectId(row)})
each = EachRoom(ObjectId(row), cursor_room)
users.append(each)
print(cursor_room)
print(users)
user = jsonpickle.encode(users, unpicklable=False)
res_user = jsonpickle.decode(user)
print(res_user)
if cursor_room:
return Response(
json_util.dumps({'message': 'success', 'user': res_user}, json_options=json_util.RELAXED_JSON_OPTIONS),
mimetype='application/json'
)
else:
return {'message': 'Document rooms is empty'}, 404
そして、これが応答です:
{
"message": "success",
"user": [
{
"id": {
"$binary": {
"base64": "Xl/WQvzhBgBTGeiE",
"subType": "00"
}
},
"rooms": [
{
"_id": {
"$binary": {
"base64": "XngkNuL9Y6AIX04v",
"subType": "00"
}
},
"created_at": "2020-03-23 09:51:34.789000",
"name": "Ruang Makan",
"updated_at": "2020-03-23 09:51:34.789000",
"user_id": {
"$binary": {
"base64": "Xl/WQvzhBgBTGeiE",
"subType": "00"
}
}
},
{
"_id": {
"$binary": {
"base64": "XngkROL9Y6AIX04w",
"subType": "00"
}
},
"created_at": "2020-03-23 09:51:48.834000",
"name": "Kamar Mandi",
"updated_at": "2020-03-23 09:51:48.834000",
"user_id": {
"$binary": {
"base64": "Xl/WQvzhBgBTGeiE",
"subType": "00"
}
}
},
{
"_id": {
"$binary": {
"base64": "XngkTOL9Y6AIX04x",
"subType": "00"
}
},
"created_at": "2020-03-23 09:51:56.220000",
"name": "Kamar Tidur Utama",
"updated_at": "2020-03-23 09:51:56.220000",
"user_id": {
"$binary": {
"base64": "Xl/WQvzhBgBTGeiE",
"subType": "00"
}
}
}
]
},
{
"id": {
"$binary": {
"base64": "XnYgKnLe9u63KLbG",
"subType": "00"
}
},
"rooms": [
{
"_id": {
"$binary": {
"base64": "Xnq+2G5/pNeS7ynf",
"subType": "00"
}
},
"created_at": "2020-03-25 09:15:52.819000",
"name": "Kamar Tidur Eren",
"updated_at": "2020-03-25 09:15:52.819000",
"user_id": {
"$binary": {
"base64": "XnYgKnLe9u63KLbG",
"subType": "00"
}
}
},
{
"_id": {
"$binary": {
"base64": "Xnq+6W5/pNeS7yng",
"subType": "00"
}
},
"created_at": "2020-03-25 09:16:09.683000",
"name": "Kamar Tidur Utama",
"updated_at": "2020-03-25 09:16:09.683000",
"user_id": {
"$binary": {
"base64": "XnYgKnLe9u63KLbG",
"subType": "00"
}
}
},
{
"_id": {
"$binary": {
"base64": "Xnq+8G5/pNeS7ynh",
"subType": "00"
}
},
"created_at": "2020-03-25 09:16:16.262000",
"name": "Kamar Mandi",
"updated_at": "2020-03-25 09:16:16.262000",
"user_id": {
"$binary": {
"base64": "XnYgKnLe9u63KLbG",
"subType": "00"
}
}
}
]
}
]
}
唯一間違っているのは、タイプとしてのid
、user_id
、およびです。アドバイスお願いします.._id
ObjectId