#24768: KeyError: u"Problem installing fixture '<filename>.json': u'manager'"
-------------------------------------+-------------------------------------
Reporter: brian | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by brian):
Ok, this is getting a tad confusing. For some reason the following code
{{{
group.project
}}}
returns a RelatedManager instead of a Project (did I miss something in the
release notes about this?). As in, the following code:
{{{
print("======", type(group), type(group.project))
}}}
displays:
{{{
('======', <class 'karaage.people.models.Group'>, <class
'django.db.models.fields.related.RelatedManager'>)
}}}
Group.project is a reverse relationship from a Project:
{{{
from mptt.models import MPTTModel
class Project(MPTTModel):
...
group = models.OneToOneField(Group)
...
}}}
So I believe group.project is suppose to return a Project, not a
RelatedManager. I then pass the "project" to the Django function:
{{{
query = query.filter(machine_category__projectquota__project=project)
}}}
Which gets confused because it has the wrong type.
--
Ticket URL: <https://code.djangoproject.com/ticket/24768#comment:2>
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