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
4330	formtools.preview.FormPreview unused_name uses non-instance form	Daniel Blasco <daniel@…>	Adrian Holovaty	"Hi there,
The FormPreview on the unused_name function uses self.form.fields from the form class, but form.fields isn't available on the Class but on the instance of a form so FormPreview raises an AttributeError when it's instances are called:

{{{
Traceback (most recent call last):
File ""/usr/lib/python2.4/site-packages/django/core/handlers/base.py"" in get_response
  77. response = callback(request, *callback_args, **callback_kwargs)
File ""/usr/lib/python2.4/site-packages/django/contrib/formtools/preview.py"" in __call__
  68. stage = {'1': 'preview', '2': 'post'}.get(request.POST.get(self.unused_name('stage')), 'preview')
File ""/usr/lib/python2.4/site-packages/django/contrib/formtools/preview.py"" in unused_name
  86. f = self.form.fields[name]

  AttributeError at /ab/add/post/
  type object 'CuentaNewForm' has no attribute 'fields'
}}}

Maybe it should read form.base_fields from the class or instantiate a form to read .fields"		closed	contrib.formtools	dev		fixed			Ready for checkin	1	0	0	0	0	0