Hello all,
I am a relatively new user of TG2, and came into the project because
changes in our campus environment finally created a problem that could not
be fixed in a TG1/Python 2.4 based web application.
The problem I've encountered is in a controller that does some silent
processing of a form, checks some values and then forwards the user to a
sub-form to continue adding additional information. This worked well under
TG1, but in TG2, the framework appears to be unable to find the template
(template_name is set to None).
The code fragment looks like this with the line that triggers the fault
highlighted in bold in the "add_finish" function:
@expose(template="echidna.templates.machine_add")
def add(self, **kw):
return dict(page='machine_add',
edit_form=forms.AddMachineFields,
navigation=Markup(nav(current='add_machine', login=False)),
action='/machine/add_finish',
params={},
defaults={})
@expose()
@validate(forms.AddMachineFields, error_handler=add)
def add_finish(self, number, provider, chartstring):
if provider=='IST VMware':
flash('Provider "%s" is supported.'%provider)
*return self.add_vmware(number, chartstring)*
else:
flash('Provider "%s" is not currently supported.'%provider)
redirect('/machine/add/')
@expose(template="echidna.templates.machine_add")
def add_vmware(self, number, chartstring):
params=dict(repetitions=dict(hosts=int(number)))
return dict(edit_form=forms.AddMachineVMWare,
navigation = Markup(nav(current='add_machine',
login=False)),
action = '/machine/vmware_finish'
params=params,
defaults={'number':number,
'chartstring':chartstring})
I have a work-around that changes the add_finish into a confirmation page,
but before commiting to adding an extra manual step in the process I am
asking if there is a proper way to call the add_vmware function from the
add_finish function within the TG2 framework.
The specific problem report for the code above is:
File "/projects/tg2env/lib/python2.6/site-packages/tg/renderers/genshi.py",
line *196*, in get_dotted_filename
if not filename.endswith(self.template_extension):
AttributeError: 'NoneType' object has no attribute 'endswith'
Thanks for any information or assistance.
Jeff Makaiwi
UC Berkeley
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