id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
8748	Problems in admin/form with primary keys in an abstract superclass	trott@…	nobody	"
My models.py has an abstract superclass, which defines (beside other things) the primary key (as a UID):

{{{
class StdHeader(models.Model):
    """"""
    Standard header. Each database relation starts with these attributes.
    """"""
    pkey    = models.CharField(max_length=40, primary_key=True, editable=True)        # primary key; an UID

    def save(self):
        """"""update of all std header attributes""""""
        #...
        if self.pkey == None or len(self.pkey)==0:
            self.pkey = uids.uid(self.__class__.__name__) 
        super(StdHeader,self).save()       

    class Meta:
       abstract = True
}}}

Now: in later SVN versions (specifically in SVN 8785) there are ""KeyErrors""
in dependend Models:

I.E:

{{{ 
class Person(StdHeader):
    
    familyname   = models.CharField(_('Familyname'),max_length=30)
    #...

class Address(StdHeader):
 
    person           = models.ForeignKey(Person,           null=True, to_field=""pkey"")
    street      = models.CharField(max_length=40, blank=True)
    #...
}}}

Adding a record to Person results in:

{{{
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/loader_tags.py"", line 123, in render
    return t.render(context)
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/__init__.py"", line 176, in render
    return self.nodelist.render(context)
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/__init__.py"", line 768, in render
    bits.append(self.render_node(node, context))
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/debug.py"", line 81, in render_node
    raise wrapped
TemplateSyntaxError: Caught an exception while rendering: ""Key 'pkey' not found in Form""

Original Traceback (most recent call last):
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/debug.py"", line 71, in render_node
    result = node.render(context)
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/defaulttags.py"", line 148, in render
    nodelist.append(node.render(context))
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/debug.py"", line 87, in render
    output = force_unicode(self.filter_expression.resolve(context))
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/__init__.py"", line 535, in resolve
    obj = self.var.resolve(context)
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/__init__.py"", line 676, in resolve
    value = self._resolve_lookup(context)
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/template/__init__.py"", line 711, in _resolve_lookup
    current = current()
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/contrib/admin/helpers.py"", line 134, in pk_field
    return AdminField(self.form, self.formset._pk_field.name, False)
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/contrib/admin/helpers.py"", line 77, in __init__
    self.field = form[field] # A django.forms.BoundField instance
  File ""/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/django/forms/forms.py"", line 105, in __getitem__
    raise KeyError('Key %r not found in Form' % name)
KeyError: ""Key 'pkey' not found in Form""
}}}

Note: There might be a relation to ticket #8562 as i got the same trace when editing/saving.



"		closed	contrib.admin	dev		fixed			Accepted	0	0	0	0	0	0