Mongoengine:TypeError:__init __()有一个意想不到的关键字参数 [英] Mongoengine: TypeError: __init__() got an unexpected keyword argument
问题描述
class User(db.Document, UserMixin):
email = db.StringField(max_length = 120,required = True,unique = True)
password_hash = db.StringField(max_length = 80,required = True)
active = db .BooleanField()
fb_id = db.StringField(max_length = 120,required = False)
$ b $ def __init __(self,email,password,fb_id = None,active = True):
hashp = md5.md5(密码).hexdigest()
self.email =电子邮件
self.password_hash = hashp
self.fb_id = fb_id
self.active = active
但是当我做一个简单的get:
User.objects .get(email = email)
我得到错误:
TypeError:__init __()得到了一个意外的关键字参数'password_hash'
但是我在我的init中设置了password_hash 。令人惊讶的是,如果我删除整个 __ init __
,并通过args传入所有内容,那么它就可以正常工作。
__ init __
中做错了,也许是文档超类的原因?这是因为当mongoengine从数据库中获取数据的时候,它会创建一个像这样的实例: 用户(**数据)
(也可能存在 id
的问题)。所以你不需要 password
参数: {
'id':ObjectId('51b349aef5ddaf191f2fb12f'),
u'email':u'test@test.test',
u'password_hash':u'12345678123456781234567812345678'
}
尝试下一个 User
class implementation:
class User(db.Document,UserMixin):
email = db.StringField(max_length = 120,required = True,unique = True)
password_hash = db.StringField(max_length = 80,required = True)
active = db.BooleanField()
fb_id = db.StringField(max_length = 120,required = False)
def __init __(self,password = None,** data):
如果密码不为空:
data ['password_hash'] = md5.md5(密码)。 hexdigest()
super(User,self).__ init __(** data)
I有我的项目的下一个实施:
类User(db.Document,UserMixin):
email = EmailField(unique = True,max_length = 64,required = True)
__password = StringField(db_field ='password',
min_length = HASH_HEX_STRING_LENGTH ,
max_length = HASH_HEX_STRING_LENGTH,
required = True)
__password_salt = StringField(db_field ='password_salt',
min_length = DEFAULT_STRING_LENGTH,
max_length = DEFAULT_STRING_LENGTH,$ b $ (必须为真)
def update_password(self,password):
self .__ password_salt = get_random_string(DEFAULT_STRING_LENGTH)
self .__ password = get_hash(password + self .__ password_salt)
返回self
$ b def verify_password(self,password):
返回self .__ password == get_hash(password + self .__ password_salt)
I am using flask-mongoengine extension and I have a User class like this:
class User(db.Document, UserMixin):
email = db.StringField(max_length=120, required=True, unique=True)
password_hash = db.StringField(max_length=80, required=True)
active = db.BooleanField()
fb_id = db.StringField(max_length=120, required=False)
def __init__(self, email, password, fb_id=None, active=True):
hashp = md5.md5(password).hexdigest()
self.email=email
self.password_hash=hashp
self.fb_id=fb_id
self.active=active
But when I do a simple get:
User.objects.get(email = email)
I get the error:
TypeError: __init__() got an unexpected keyword argument 'password_hash'
but I am setting the password_hash in my init though. Surprisingly, if I delete the whole __init__
and pass in everything by args, it works fine.
So I recon I am doing something wrong in the __init__
, maybe something due the document super class? I am quite stuck on this, would appreciate your help.
This because when mongoengine get data from database then it create instance like User(**data)
(there are also can be problem with id
). So you haven't required password
argument there:
{
'id': ObjectId('51b349aef5ddaf191f2fb12f'),
u'email': u'test@test.test',
u'password_hash': u'12345678123456781234567812345678'
}
Try next User
class implementation:
class User(db.Document, UserMixin):
email = db.StringField(max_length=120, required=True, unique=True)
password_hash = db.StringField(max_length=80, required=True)
active = db.BooleanField()
fb_id = db.StringField(max_length=120, required=False)
def __init__(self, password=None, **data):
if password is not None:
data['password_hash'] = md5.md5(password).hexdigest()
super(User, self).__init__(**data)
I have next implementation for my project:
class User(db.Document, UserMixin):
email = EmailField(unique=True, max_length=64, required=True)
__password = StringField(db_field='password',
min_length=HASH_HEX_STRING_LENGTH,
max_length=HASH_HEX_STRING_LENGTH,
required=True)
__password_salt = StringField(db_field='password_salt',
min_length=DEFAULT_STRING_LENGTH,
max_length=DEFAULT_STRING_LENGTH,
required=True)
def update_password(self, password):
self.__password_salt = get_random_string(DEFAULT_STRING_LENGTH)
self.__password = get_hash(password + self.__password_salt)
return self
def verify_password(self, password):
return self.__password == get_hash(password + self.__password_salt)
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