Another TG newbie.
I have a problem with a SingleSelectField. I have a first form where
the user selects from a SingleSelectField called Familia and then a
second form exposes the user another SSF, called Cicle, with all the
options related to the option selected on the first form. The second
form constructs the SSF querying a database and filtering by the
option on the first form.
The problem comes when, on the second form, a validation error raises.
That second form reappears displaying the errors as usual and
refilling the form as sent but the SSF which resets to the "Pick one"
option.
I've checked that the value is passed correctly to the form, but it is
lost when the form is displayed again.
Here is the code involved:
@expose(template="solconvenis.templates.solicitud")
@error_handler(index)
@validate(form=formFamilia)
def solicitud(self, tg_errors=None, familia=None, cicle=None):
if familia == None:
raise redirect("/")
if (tg_errors):
flash(u"Si us plau, completeu correctament el formulari")
# Construcció dinàmica dels desplegables de família i cicles
cicles = getCiclesByFamilia(familia)
opcions = dict(cicle=cicles)
valors = dict(familia=familia,cicle=cicle)
return dict(form=formEmpresa,opcions=opcions,valors=valors)
[...]
def getCiclesByFamilia(familia):
"""Opcions del desplegable de cicles filtrats per família
professional."""
cicles = Cicle.selectBy(familia=familia)
opcions = [("", u"Tria un cicle")]
for cicle in cicles:
if cicle != None: # Descarta cicles ocults (tg_id IS NULL)
opcions.append((cicle.codi, cicle.nom))
return opcions
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