MySQL foreign key issues inside admin interface

[oliver.andrich@…]

Here follows a small part of the model I use in conjunction with a mysql database. I haven't switched anything, so my tables are created as MyISAM tables. (Sadly, I also need them to be MyISAMs.) As the foreign key "emulation" of Django works fine for my application so far, I just think I can stick to it even if that sounds like horror to real database guys. :)

But my problem is, when I hit the order "button" in the admin interface list view of the agencies table, I get the following Python stack trace. Do be more precise, this only happens when I try toorder the list using a field, that I referenced by a ForeignKey. Is this a bug or what I am doing wrong?

There's been an error:

Traceback (most recent call last):

File "/usr/lib/python2.4/site-packages/django/core/handlers/base.py", line 64, in get_response

response = callback(request, param_dict)

File "/usr/lib/python2.4/site-packages/django/views/admin/main.py", line 134, in change_list

lookup_order_field = '%s.%s' % (f.rel.to.db_table, f.rel.to.ordering[0])

IndexError: list index out of range

MODEL Excerpt

class Agencytype(meta.Model):

name = meta.CharField(maxlength=32)
creation_date = meta.DateTimeField(auto_now_add=True)
last_modified = meta.DateTimeField(auto_now=True)

def repr(self):

return self.name

class META:

admin = meta.Admin(

list_display = (

"name",
"creation_date",
"last_modified"
)

)

class Agency(meta.Model):

name = meta.CharField(maxlength=32)
type = meta.ForeignKey(Agencytype)
creation_date = meta.DateTimeField(auto_now_add=True)
last_modified = meta.DateTimeField(auto_now=True)

def repr(self):

return self.name

class META:

unique_together = (("name", "type"),)
admin = meta.Admin(

list_display = (

"name",
"type",
"creation_date",
"last_modified"
)

)