`Site` does not exist during migrations for `sharedcontent` plugin.

[mrmachine]

During migrations, Django tries to evaluate the default value for the site field in order to create the model.

The default is a callable that returns Site.objects.get_current().pk. On a fresh database, no Site object exists.

If django-fluent-pages is also installed, its migrations will actually create a default Site object if none exist. But when django-fluent-contents is used on its own, this doesn't happen.

Perhaps the make_site code from django-fluent-pages should be abstracted into django-fluent-utils and called by fluent_contents.plugins.sharedcontent.utils.get_current_site_id()?

See: https://github.com/edoburu/django-fluent-pages/blob/master/fluent_pages/migrations/0001_initial.py#L10

[sjdines]

If you are going down that path why not put get_current_side_id() into django-fluent-utils as well?

Should the get_current_site_id() enforce a site to be there or should it be just in the migration to call make_site where appropriate?

Another option maybe to to register the call against a pre_migrate signal?

[mrmachine]

Or just move the make_site function into django-fluent-utils and add a data migration to the top of the operations list in fluent_contents.plugins.sharedcontent.migrations.0001_initial?

It's a data migration that only creates a default site if one doesn't already exist, so it should be safe to add this into an existing migration without damaging existing installations?

Then fluent-contents will behave the same as fluent-pages and we don't need to touch the get_* methods which may be called by other code.

[mrmachine]

FYI, I have worked around this in my project by adding a new migration that duplicates the make_site data migration from django-fluent-pages and adds a reverse dependency:

    run_before = [
        ('sharedcontent', '0001_initial'),
    ]

[vdboor]

Good points! Sorry for not replying earlier (due to holidays).
I'm all for placing this feature into django-fluent-utils. I didn't notice it before as all my projects use django-fluent-pages. From what I see, everything can be placed in fluent-utils:

• The migration action to create a default site, named as CreateInitialSite?
• The get_current_site_id() code
• All of sharedcontent.utils