On Apr 7, 2:04 am, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> Perfectly legal - and you can pass a callable to the select-field's
> options as well, so it gets evaluated every time the form is rendered,
> using the current DB-values.
Thanks for bearing with me but I think there's some fundamental
problem that I'm not dealing with here.
I'll paste the relevant parts of the code here.
# My list of fields is like so
class CreateRequestFields(tg.widgets.WidgetsList):
creator =
TextField("creator",default=identity.current.user_name,attrs={'readonly':'t'},validator=vd.NotEmpty())
stream = MultipleSelectField("Stream",options=[(x.name,x.name) for
x in model.Stream.query.all()],validator=vd.NotEmpty())
change_type = SingleSelectField("change_type",label = "Nature of
change",options = [(x.id,x.name) for x in
model.ChangeType.query.all()],validator = vd.NotEmpty())
#Inside the Root controller, I have these methods
@expose(template=".templates.create")
@identity.require(identity.not_anonymous())
def create(self,tg_errors = None):
if tg_errors:
flash ("There was an error in the form")
table = TableForm("Table form",
fields = CreateRequestFields,
method = "post",
action="save_request",submit_text = "Create request")
return dict (table = table)
@expose(template=".templates.create")
@validate(form=CreateRequestFields)
@error_handler(create)
@identity.require(identity.not_anonymous())
def save_request(self,**lst):
# This is just a dummy to see if it works.
return dict(table = TextArea("das",default="Successful save"))
The error I get is like this
turbogears.identity.exceptions.RequestRequiredException: An attempt
was made to use a facility of the TurboGears Identity Management
framework that relies on an HTTP request outside of a request.
Of course, this should be called only from within the controller, So I
put in some try/excepts around the definition inside the
CreateRequestFields class to work around the problem. Then I get
errors like this
AttributeError: type object 'CreateRequestFields' has no attribute
'is_named'
I assumed that since I can "call" CreateRequestFields, I could pass it
to the as the fields parameter and it would get called. Isn't that the
case?
I got a working solution by creating a function which constructs the
entire form (fields and the TableForm) and passing the function as the
argument to the validator and calling it to create the widget
necessary to render the page. This works fine but the problem is that
when there is an error, I don't automagically get the help messages.
If that'd be too complicated, I can live without that but I'd still
like to know what's wrong here and what's the right way to do it.
Thanks in advance for any help.
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