Я пишу API для принятия и сохранения информации профиля пользователя. Всего я хочу принять от пользователя 5 параметров, которые указаны ниже.
{
"first_name":"",
"last_name":"",
"email":"",
"password":"",
"profile_picture":""
}
Из этих 5 параметров first_name, last_name, email и password являются обязательными и profile_picture необязательно.
В models.py я упомянул profile_picture как ImageField.
models.py
class Users(AbstractBaseUser, PermissionsMixin):
"""
This model is used to store user login credential and profile information.
It's a custome user model but used for Django's default authentication.
"""
email = models.EmailField(max_length=255, unique=True)
first_name = models.CharField(max_length=255, blank=False, null=False)
last_name = models.CharField(max_length=255, blank=False, null=False)
profile_picture = models.ImageField(upload_to='profile_picture/', max_length=None, blank=True)
is_active = models.BooleanField(default=True)
# defining a custom user manager class for the custom user model.
objects = managers.UserManager()
# using email a unique identity for the user and it will also allow user to use email while logging in.
USERNAME_FIELD = 'email'
В serializers.py я упомянул profile_picture как ImageField с required=False.
serializers.py
class UserSerializer(serializers.Serializer):
"""
This is a serializer class to validate create user request object.
"""
class Meta:
models = 'Users'
email = serializers.EmailField(allow_blank=False)
first_name = serializers.CharField(max_length=255, allow_blank=False)
last_name = serializers.CharField(max_length=255, allow_blank=False)
profile_picture = serializers.ImageField(max_length=None, allow_empty_file=True, use_url= False, required=False)
password = serializers.CharField(
max_length = 255,
write_only=True,
allow_blank = False,
style={
'input_type' : 'password'
}
)
def create(self, validated_data):
user_id = models.Users.objects.create_user(**validated_data)
return user_id
И вот как мой обычай Класс менеджера выглядит следующим образом.
manager.py
class UserManager(BaseUserManager):
"""
Manager class for the custome user manager. Every model has a default manager class.
If you define a custome user model then model manager class also needs some customization.
"""
def create_user(self, email, first_name, profile_picture, last_name, password=None):
"""
Here the default create_user() methode of the manager is overridden to achive customization.
"""
# check email parameter is has some value ir its empty.
if not email:
# raise the value error if it is empty.
raise ValueError('Users must have an email address.')
# defining a model instance by mapping parameters with the model fields.
user = self.model(
# normalizing email i.e converting it to lower case.
email = self.normalize_email(email),
first_name = first_name,
last_name = last_name,
profile_picture = profile_picture,
)
# encrypting user password using default method set_password()
user.set_password(password)
# saving instance in to model.
user.save(using=self._db)
# return model instance.
return user
Когда я передаю объект без profile_picture, он возвращает мне указанную ниже ошибку.
TypeError at /user/create/
create_user() missing 1 required positional argument: 'profile_picture'
Поэтому я попытался еще раз после удаления параметра profile_picture из create_user() метода класса менеджера. Но тогда API не работает для пользователей, которые хотят загрузить свои profile_picture.