Django. Create Object Manytomanyfield Error

I am trying to write tests for my models. I try to create object like this: GiftEn.objects.create(gift_id=1, name='GiftEn', description='GiftEn description', short_

Solution 1:

By error description you need create (save) GiftEn object before add many2many:

giften = GiftEn.objects.create(
    gift_id=1,
    name="GiftEn",
    description="GiftEn description",
    short_description="GiftEn short description")

giften.categories.add('1')
giften.partner.add('1')
giften.addresses.add(2)