I'm trying to populate my Django project with some random data using factory_boy and faker. However, when I try to create an instance of my UserFactory object I'm getting the error TypeError: () missing 1 required positional argument: 'a'.
It seems to have something to do with the fake_date and date_joined attributes and their lambda functions. A couple of the tutorials I've found have laid out using lambda functions in this way for the Factory objects but it isn't working for me.
import datetime
import factory
import faker
from dataStoreApp.models import Category, Goal, Transaction
from django.contrib.auth.models import User
fake = faker.Faker()
class CategoryFactory(factory.django.DjangoModelFactory):
class Meta:
model = Category
name = factory.Iterator(['Category1', 'Category2',
'Category3', 'Category4',
'Category5', ], cycle=False)
class UserFactory(factory.django.DjangoModelFactory):
FACTORY_HIDDEN_ARGS = ('fake_date', )
class Meta:
model = User
fake_date = factory.LazyAttribute(
lambda a: datetime.datetime.now().strftime("%Y-%m-%d %H:%M"))
date_joined = factory.LazyFunction(lambda a: a.fake_date)
first_name = factory.LazyAttribute(lambda b: fake.first_name())
last_name = factory.LazyAttribute(lambda c: fake.last_name())
email = factory.LazyAttribute(lambda e: 'test' + '@test_email.com')
class GoalFactory(factory.DjangoModelFactory):
class Meta:
model = Goal
class TransactionFactory(factory.django.DjangoModelFactory):
class Meta:
model = Transaction
When running in the python console I get the following errors:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "C:\Program Files\Python36\lib\site-packages\factory\base.py", line 568, in create
return cls._generate(enums.CREATE_STRATEGY, kwargs)
File "C:\Program Files\Python36\lib\site-packages\factory\base.py", line 505, in _generate
return step.build()
File "C:\Program Files\Python36\lib\site-packages\factory\builder.py", line 272, in build
step.resolve(pre)
File "C:\Program Files\Python36\lib\site-packages\factory\builder.py", line 221, in resolve
self.attributes[field_name] = getattr(self.stub, field_name)
File "C:\Program Files\Python36\lib\site-packages\factory\builder.py", line 363, in __getattr__
extra=declaration.context,
File "C:\Program Files\Python36\lib\site-packages\factory\declarations.py", line 59, in evaluate
return self.function()
TypeError: <lambda>() missing 1 required positional argument: 'a'
FACTORY_methods were removed in 2.5. – Pedestrianism