Thank you very much! I was under the impression that it was marking the end
of the argument list which was confusing me to no end.
Have a great day,
John Sullivan
On Thursday, May 10, 2012 5:36:13 AM UTC-7, scott wrote:
>
> Hey John,
> form.notnull is an example of a built-in validator that the web.py Form
> module uses to verify the contents of the form when you form
> form.validates(). Form.notnull means the value inside that particular
> input element must be not null in order to validate properly.
>
> You don't need to use form.notnull, but its convenient - and there can be
> more than one validator. See this example for reference:
>
> form.Textbox("bax",
> form.notnull,
> form.regexp('\d+', 'Must be a digit'),
> form.Validator('Must be more than 5', lambda x:int(x)>5))
>
> from: http://webpy.org/form#example
>
> That has 3 different validators notnull, a regex and a length check.
> Validators come first in the form elements argument list, then optional
> arguments like pre, post, class, etc. follow.
> On Wed, May 9, 2012 at 11:29 PM, John Sullivan <[email protected]> wrote:
>
>> Hello,
>>
>> I have searched through much of the mailing list, all of the
>> documentation I could find, Google, and tried the freenode channel
>> (which seems to be dead). I can not find out what the purpose is of
>> having form.notnull inside of the form objects' constructors. The only
>> description of it that I could find is at webpy.org/form#inputfeatures
>> but it wasn't very clear:
>>
>> form.textbox("firstname",
>> form.notnull, #put validators first followed by optional
>> attributes
>> class_="textEntry", #gives a class name to the text box -- note
>> the underscore
>> pre="pre", #directly before the text box
>> post="post", #directly after the text box
>> description="please enter your name", #describes field, defaults
>> to form name ("firstname")
>> value="bob", #default value
>> id="nameid", #specify the id
>> )
>>
>> Could anyone tell me what the purpose of form.notnull is? Or point me
>> to some literature I missed that explains it to me?
>>
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>>
>
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