Hello to all.
I am new to this group and therefore i want to introduce myself.
I am a Developer working with Turbogears for over 2 years now.
The time before I directly used CherryPy and my "home made"
connections to SQL-Databases. But using Turbogears as Framework
avoids a lot of problems and the time can better be used to
do better code.
My famous programming language is Python of course and now
i am running into little problems using validators.
(actually solved with workarounds like type-conversion, ...)
I only want to know if it is really not possible to it
the way I would like it do do ;-)
I am having a method in one of my model that returns a list
containing tuples
e.g.
mylist = [(0, 'user0'), (1, 'user1'), ... ]
I use this list to feed it to a
widgets.SingleSelectField(name='user',
label='Users',
options=mylist
default=0)
As you can see I am passing the User ID as int()-object to the widget.
Rendering/displaying the list works like a charme.
The validation process of the form (the user part) should be done with
SchemaValidation
e.g.
Question #1:
(does not work because the validator wants int(), the form sends e.g.
u'0'
user = validators.OneOf( map(lambda user: user[0], myModel.getIDTuples
()) )
(myModel.getIDTuples results int the above example of "mylist")
It would be possible to use str(user[0]) in lambda-expression, but I
want to avoid
type conversion if NOT REALLY needed.
I also tried to chain validators with ForEach(Int(), OneOf( map(lambda
user: user[0], myModel.getIDTuples()) ))
This did not work because the validator resulted in [0] (a list-
object)
Is is really not possible to validate if the value is a valid int()
and then if it is in a given list?
#Question #2
SchemaValidation:
startdate, enddate are created with a widgets.CalendarDatePicker()
startdate = validators.DateTimeConverter(format='%d.%m.%Y')
enddate = validators.DateTimeConverter(format='%d.%m.%Y')
The validation in the given form works.
But how is possible to validate if the fields are of the correct form
(like above)
AND if startdate < enddate?
Best regards.
Werner
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