Hello everybody,
This is what I'm trying to do:
def test_basic_addition(self):
# create field
f = models.ManyToManyField(to=X, related_name='bar')
f.contribute_to_class(Y, 'x')
# create table
field = Y._meta.get_field_by_name('x')[0]
through = field.rel.through
fields = tuple((field.name, field) for field in
through._meta.fields)
db.create_table(through._meta.db_table, fields)
db.create_unique(through._meta.db_table,
['%s_id' % name for name, f in fields
if isinstance(f, models.ForeignKey)])
x = X(name='foo')
x.save()
y = Y()
y.save()
y.x.add(x)
print y.x.all()
The exception thrown is:
E
======================================================================
ERROR: test_basic_addition (test_app.tests.SimpleTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/jpic/test_project/test_app/tests.py", line 41, in
test_basic_addition
print y.x.all()
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/manager.py",
line 116, in all
return self.get_query_set()
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/fields/related.py",
line 543, in get_query_set
return super(ManyRelatedManager,
self).get_query_set().using(db)._next_is_sticky().filter(**self.core_filters)
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/query.py",
line 621, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/query.py",
line 639, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/sql/query.py",
line 1250, in add_q
can_reuse=used_aliases, force_having=force_having)
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/sql/query.py",
line 1122, in add_filter
process_extras=process_extras)
File
"/home/jpic/env/local/lib/python2.7/site-packages/django/db/models/sql/query.py",
line 1316, in setup_joins
"Choices are: %s" % (name, ", ".join(names)))
FieldError: Cannot resolve keyword 'bar' into field. Choices are: id,
name, users
----------------------------------------------------------------------
Ran 1 test in 0.017s
FAILED (errors=1)
Destroying test database for alias 'default'...
`del X._meta._name_map` doesn't do the trick but i guess that's normal
because it's a reverse field that come from the other model, Y.
Anyway, you can checkout my [test_project][1] which isolates my problem,
and then run `./manage.py test test_app` in your working copy to reproduce
the issue.
[1]: https://github.com/jpic/test_project/
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