Hi guys, I don't show up here too often because all the issues I find use
to be solved here. Good job.
Today I was going nuts with one issue, and I would like to share my
findings for other developer's shake.
I was generating a form with SQLFORM.factory:
form= SQLFORM.factory(...)
In the controller, I was creating a custom form for the view, something
like:
custom_form= CAT(form.custom.begin,
... custom fields...
form.custom.submit,
form.custom.end)
The custom_form displayed fine in the browser, but when I submitted the
form, it wasn't accepted at:
if form.process().accepted:
response.flash='Accepted'
Digging in the SQLFORM and FORM classes I learnt a lot about them, and
finally I realized the origin of the problem:
- form.process() requires a hidden field (*formkey*) with valid data for
security reasons. That field uses to be in form.custom.end
- that field was missing in may custom_form
- The reason was that when you create a form with SQLFORM.factory,
initially, there is no hidden *formkey* field in form.custom.end, just a
humble </form>
- That *formkey* hidden field gets inserted in form.custom.end when you
call form.process()
- That means that form.process() must be called before generating the
view, in order to have a formkey in form.custom.end. My failure was to try
tocreate custom_form = CAT() before calling form.process()
- Should I have use {{=form.custom.end}} straight in the view, I would
have had no problem.
- As I had quite a complex form, I preferred to have it generated in the
controller, and I just had to put the if form.process().accepted: before
generating programatically the custom_form and everything worked fine
Thanks a lot guys for this helpful group.
Best regards.
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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