[Catalyst] Formhandler and Auth

[David Schmidt]

On Mon, Mar 7, 2011 at 1:03 AM, Eric Berg <eberg at bergbrains.com> wrote:
> On 3/4/11 11:03 AM, Gerda Shank wrote:
>>
>> On 3/4/11 8:23 AM, Eric Berg wrote:
>>>
>>> I'm trying to do some progressive engagement by allowing one of my forms
>>> to be filled out before a user is required to log in, but once the form is
>>> filled, I need them to log in so that I can get the user ID, which is part
>>> of the record for that form's row in my db.
>>
>> So after the form is submitted, you want to save the form contents
>> somehow, then present a login form, then after the user logs in, save it to
>> the database?
>
> Yes.  What I did previously was just to save a hash of the values, but I'm
> not sure how to pass that to formhandler given that my db constraints
> currently require the values for this form to have a creator_id, which is
> just what I need from the login.  So, I'm thinking at this point that I need
> to find a way to pass a hash of form values back to formhandler..that's got
> to be possible, and must be done after I get the form submission or I'll
> have to loosen up the constraints on my db to allow me to insert rows
> without a creator ID.  I'm looking into that now.
>>
>> Is the part you're not sure of how/where to save the form contents? There
>> are the usual options for preserving data across several requests, i.e.
>> stash, database, etc.
>
> I've been stashing a hash of form params.  I have to test this out, but I
> have to figure out if I can validate the form without the creator_id's being
> present.  I added it to the form, because formhandler was barfing when I
> used the simple form of stashing the new_result({}), then returning
> $self->form($c) in my add().   I have to figure out how to validate the form
> wtihout having it submitted to teh db, because that causes an error when the
> creator_id is missing, or add the creator_id (hidden and empty) to the form
> and only validate after login.  I guess I just have to try a few things.  If
> any of you good folks have banged your head against this and have ideas,
> they'd certainly be welcome.
>>
>> Then you'd have to decide how you want to save the data. You *could* use
>> FormHandler to do that, but if you have an already validated set of data, it
>> might be simpler to just save it to the database yourself.
>
> May be.  Probably, since I'm trying to wrest control from formhandler so I
> can validate a form without the creator_id, then redirect to login, then
> take the values of the form and the logged-in user's id and commit that to
> the db.  One change that is causing me problems is that I moved from the
> approach of having the form be a simple attribute (has 'form') where I was
> doing all the processing in the show and add methods to the approach where I
> implemented $self->form() per the sample referenced in
> HTML::FormHandler::Manual::Catalyst.
>
> Thinking through this in writing this, I believe that what I have to do is
> reimplement the form as a simple attribute and then handle the process() as
> needed in the add() method.  I think that's where I shot myself in the foot.
>
> Thank you muchly.  I'll post my successful results for the benefit of those
> who follow.
>
> Eric
>>
>> I'm not quite sure if I addressed the particular issues you were having;
>> if not, please clarify :)
>>
>> Gerda
>>
>>
>> _______________________________________________
>> List: Catalyst at lists.scsys.co.uk
>> Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst
>> Searchable archive:
>> http://www.mail-archive.com/catalyst@lists.scsys.co.uk/
>> Dev site: http://dev.catalyst.perl.org/
>
>
> _______________________________________________
> List: Catalyst at lists.scsys.co.uk
> Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst
> Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/
> Dev site: http://dev.catalyst.perl.org/
>

I think I got 2 solutions for your problem.

1)
I split the form into MyFormBase.pm and MyForm

MyFormBase is a plain FormHandler class

MyForm on the other hand extends from MyFormBase and
HTML::FormHandler::Model::DBIC

I send a MyFormBase form to the user, validate it, store the values
$form->values (or something like that) in the session/flash and later
on use these values to fill an MyForm form.

https://github.com/davewood/Nolabel/tree/master/lib/Nolabel/Form

2) get the values from the form, store them in the session/flash, make
the database insert manually.