FYI...
I'm having an issue with the get_or_create helper method. Apparently
it isn't coercing parameters properly.
I've got some code that looks like this:
e = Foo(name=name, category=c, display_name=name.capitalize())
e2, created = Foo.objects.get_or_create(name=name, category=c,
display_name=name.capitalize())
The first one will work and the second fails. The issue being that
the category is a foreign key and when creating the Foo object it uses
the id of category. When using the get_or_create method, it passes in
the Category object as the SQL query parameter instead of the id.
Thus giving the following error:
File "scanfoo.py", line 60, in pop_db
e2, created = Foo.objects.get_or_create(name=name, category=c,
display_name=name.capitalize())
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/models/manager.py",
line 69, in get_or_create
return self.get_query_set().get_or_create(*args, **kwargs)
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/models/query.py",
line 217, in get_or_create
return self.get(**kwargs), False
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/models/query.py",
line 202, in get
obj_list = list(clone)
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/models/query.py",
line 94, in __iter__
return iter(self._get_data())
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/models/query.py",
line 412, in _get_data
self._result_cache = list(self.iterator())
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/models/query.py",
line 163, in iterator
cursor.execute("SELECT " + (self._distinct and "DISTINCT " or "")
+ ",".join(select) + sql, params)
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/backends/util.py",
line 12, in execute
return self.cursor.execute(sql, params)
File
"/home/matt/work/vpython/lib/python2.4/site-packages/Django-0.95-py2.4.egg/django/db/backends/sqlite3/base.py",
line 79, in execute
return Database.Cursor.execute(self, query, params)
pysqlite2.dbapi2.InterfaceError: Error binding parameter 0 - probably
unsupported type.
I've put some debugging statements in to confirm this.
The problem is in query.py line 877 where field.get_db_prep_lookup is called.
I'll dig in more. But I figured you guys would be able to whip out
this bug fix a lot faster.
Let me know if I should file a bug.
thanks
matt
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