Re: unique_together FK problem with version 1.2.1

On Sun, May 30, 2010 at 5:21 AM, Karl Lam <karl.v.lam@gmail.com> wrote:

Class A and class B were setup using syncdb. Class B has a FK of class
A.

First I login to the admin site to add a record of Class A. Then add a
record of Class B by choosing  the only record of Class A as FK. Error
occurs after clicking "save" button. Is this a bug? or my setting is
wrong?

[snip] 

TypeError at /admin/inventory/room/add/

coercing to Unicode: need string or buffer, long found

Request Method:         POST
Request URL:    http://localhost:8888/admin/inventory/room/add/
Django Version:         1.2.1
Exception Type:         TypeError
Exception Value:

[snip]
File "/usr/lib/python2.4/site-packages/django/contrib/admin/
options.py" in add_view
 800.                 self.log_addition(request, new_object)
File "/usr/lib/python2.4/site-packages/django/contrib/admin/
options.py" in log_addition
 428.             object_repr     = force_unicode(object),
File "/usr/lib/python2.4/site-packages/django/utils/encoding.py" in
force_unicode
 66.                 s = unicode(s)

Exception Type: TypeError at /admin/inventory/room/add/
Exception Value: coercing to Unicode: need string or buffer, long
found

The admin is trying to add a log message noting the creation of the new B object. However when it attempts to get the unicode representation of that object for the log message, something other than unicode is returned. So you need to correct the __unicode__ method of B to return unicode (or a string or buffer, which could be coerced to unicode). Anything else makes Python raise this error.

Karen

--
http://tracey.org/kmt/

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