Cookiecutter-django: Upgrading to Django 2.1

[webyneter]

Things to keep in mind:

• UserCreationForm and UserChangeForm no longer need to be rewritten for a custom user model (I believe, this has already been pointed out by some around here but could find any mention though...) See https://github.com/pydanny/cookiecutter-django/issues/1654#issuecomment-484585482 for context.
• Dropped support for PostgreSQL 9.3.
• Removed BCryptPasswordHasher from the default PASSWORD_HASHERS setting: maybe we should remove it from PASSWORD_HASHERS all together?

[jhancia]

Is anyone running cookiecutter-django with Django 2.1? Is it safe to upgrade?

[webyneter]

@jhancia I've been successfully using it on my production-grade projects. The only thing you'd need to change is the layout of UserAdmin, for instance, this is what mine looks like:

@admin.register(User)
class UserAdmin(auth_admin.UserAdmin):
    fieldsets = (
        (_("Personal info"), {"fields": ("email",)}),
        (
            _("Permissions"),
            {
                "fields": (
                    "is_active",
                    "is_staff",
                    "is_superuser",
                    "groups",
                    "user_permissions",
                )
            },
        ),
        (_("Important dates"), {"fields": ("last_login", "date_joined")}),
    )
    add_fieldsets = (
        (None, {"classes": ("wide",), "fields": ("email", "password1", "password2")}),
    )
    form = UserChangeForm
    add_form = UserCreationForm
    list_display = ["email", "is_active", "is_staff", "is_superuser", "date_joined"]
    list_filter = ["groups", "is_active", "is_staff", "is_superuser"]
    search_fields = ["email"]
    ordering = ["-date_joined"]

Also, you might wanna check out if UserChangeForm and UserCreationForm are still necessary (I can't find them being mentioned in the current dev docs for some reason...)

[iamchinu97]

@webyneter thank you so much this solution helped me a lot

[browniebroke]

The change mentioned which simplified User forms has been reverted, that's why it's no longer in the release notes:

https://github.com/django/django/pull/10289