Hello,
I'm trying to use newfangled widgets and run into a problem. I'm not sure
whether I'm doing something wrong or simply run into a bug.
I have defined widget-based form like this:
addBookForm = TableForm(name='addbook', submittext=_('Add Book'),
widgets=[...])
Now I have the following method in my controller class:
@turbogears.expose(content_type="text/html; charset=UTF-8",
inputform=addBookForm,
html="bookswap.templates.addbook")
def addbook(self, **kw):
if cherrypy.request.method == 'POST':
errors = cherrypy.request.form_errors
if errors:
turbogears.flash(_('please correct errors below'))
else:
turbogears.flash(_('book has been added'))
raise cherrypy.HTTPRedirect(turbogears.url("/addbook"))
return dict(form=addBookForm)
The logic is simple: on GET request simply present user with a form. On POST,
validate form data and either redirect to the same form (/addbook) to enter
next book or re-display form highlighting the errors.
Note that addBookForm is a static var (module-level global). Btw, is it OK? In
other thread Kevin said that widgets are stateless so I suppose I'm doing right
but it feels a bit awkward. Anyway.
When I'm trying to display form in a brower I got a traceback:
Traceback (most recent call last):
File
"C:\Python24\Lib\site-packages\CherryPy-2.1.0-py2.4.egg\cherrypy\_cphttptools.py",
line 271, in run
main()
File
"C:\Python24\Lib\site-packages\CherryPy-2.1.0-py2.4.egg\cherrypy\_cphttptools.py",
line 502, in main
body = page_handler(*args, **cherrypy.request.paramMap)
File "d:\projects\3rd-party\turbogears\turbogears\controllers.py", line 240,
in newfunc
html, fragment, *args, **kw)
File "d:\projects\3rd-party\turbogears\turbogears\database.py", line 191, in
run_with_transaction
retval = func(*args, **kw)
File "d:\projects\3rd-party\turbogears\turbogears\controllers.py", line 257,
in _execute_func
output = func(self, *args, **kw)
File "d:\projects\3rd-party\turbogears\turbogears\controllers.py", line 111,
in newfunc
inputform.input(kw)
File "d:\projects\3rd-party\turbogears\turbogears\widgets\forms.py", line
108, in input
widget.input(values)
File "d:\projects\3rd-party\turbogears\turbogears\widgets\base.py", line 366,
in input
widget.input(values)
File "d:\projects\3rd-party\turbogears\turbogears\widgets\base.py", line 134,
in input
params[self.name] = self.validator.to_python(
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\api.py",
line 304, in to_python
value = tp(value, state)
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\validators.py",
line 923, in _to_python
value = float(value)
TypeError: float() argument must be a string or a number
After I changed line 106 of the controllers.py from:
if not processed and form:
to:
if not processed and form and kw:
the problem gone.
That's using r491 of SVN.
