Frederik Elwert wrote:
> I am currently writing a web survey application where users can generate
> their own surveys.
>
> I have the form generation in place, so forms are generated from the
> user's survey definition file. Now I want to add validation. As far as I
> understood the concept of FormEncode, it expects me to know what kind of
> values I expect when setting up the Schema.
>
> E.g., from the docs:
>
> class EmailForm(formencode.Schema):
> allow_extra_fields = True
> filter_extra_fields = True
> email = formencode.validators.Email(not_empty=True)
>
> Now I can't "hardcode" that I have a variable of type email, I just have
> information about the variables like:
>
> [('v1', {'type': 'email', 'required': True}), ('v2', {'type: 'int',
> 'max': 100})]
>
> Now I want to set up a Schema from this information, equivalent to this:
>
> class SurveyForm(formencode.Schema):
> allow_extra_fields = True
> filter_extra_fields = True
> v1 = formencode.validators.Email(not_empty=True)
> v2 = formencode.validators.Int(not_empty=False, max=100)
>
> Is it somehow possible to generate Schema definitions dynamically like
> this?
cust_schema = formencode.Schema(allow_extra_fields=True,
filter_extra_fields=True)
cust_schema.add_field('v1', formencode.validators.Email(not_empty=True)
cust_schema.add_field('v2', formencode.validators.Int(not_empty=False,
max=100)
> By the way, Ian suggested that there were min and max keyword arguments
> for the Int validator in the "FormEncode form validators" thread, but I
> don't get them to work:
>
>>>> val = validators.Int(max=5)
>>>> val.to_python('10')
> 10
Somehow I thought they were there generally, but they weren't. In the
FormEncode trunk they work.
--
Ian Bicking : [EMAIL PROTECTED] : http://blog.ianbicking.org
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