Hi all
I'm updating a project from Django 1.8 to 1.11, however the migrations
which ran correctly under 1.8 now raise a CircularDependencyError for
(effortless_auth.0001_initial, app.0028_create_south_korea_data_set,
effortless_auth.0003_add_dev_group,
app.0027_create_effortless_verticals), which I'll summarise:
effortless_auth.0001_initial
Depends:
auth.__first__, places.__first__, auth.0006_require_contenttypes_0002
Adds:
AccountManager, DataSetType, PropValue, SpeedTestResult,
Vertical -> no FKs outside of app
GroupExtension -> (modified after creation to add fk to auth.Group)
PropDefinition -> fk to auth.Group
UserEvent -> fk to auth.User (settings.AUTH_USER_MODEL)
UserProp -> fk to auth.User (settings.AUTH_USER_MODEL)
Modifies:
GroupExtension -> add fk to auth.Group
app.0028_create_south_korea_data_set
Depends:
effortless_auth.003_add_dev_group
Runs:
Creates DataSetType instance
effortless_auth.0003_add_dev_group
Depends:
effortless_auth.0002_create_custom_content_group
Runs:
Creates and populates a Group and GroupExtension
app.0027_create_effortless_verticals
Depends:
effortless_auth.003_add_dev_group
Runs:
Creates 4 Vertical instances
I do not see what is circular from this, the graph should surely be:
auth.__first__
auth....
auth.0006
effortless_auth.0001
..
effortless_auth.0003
...
app.0027
app.0028
Why does this now confuse Django? I have a feeling this is due to
swappable models for auth (which we do not use, this project was
started with AUTH_USER_MODEL unset, but another project which re-uses
some of our libraries does do).
I can share more of the migrations, there is some additional
complexity I have skipped over because effortless_auth used to be part
of "app" and 'app' has had migrations squashed in the past, so many of
these migrations have "replaces" attributes also.
Cheers
Tom
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