[html-formfu] HTML::FormFu::Element::DBIC::Select for review

Mario Minati mario.minati at googlemail.com
Wed Sep 19 11:43:00 GMT 2007

On Wednesday 19 September 2007 10:59:17 Zbigniew Lukasiak wrote:
> On 9/18/07, Mario Minati <mario.minati at googlemail.com> wrote:
> > When using 'populate' you cannot be sure if something is being changed
> > later on. When 'process' and 'render' are called nothing will be changed
> > anymore. That's why I use these functions.
> OK - so you want to be sure that the options are there - even if
> someone writes some extension that manipulates the element.  Hmm ...

When extending DBIC you just call the ancessor (my $process = 
$self->next::method...) and do you stuff, or you do your stuff before.

> Let's say that I am overriding render to add some formatting (or to
> use some different templating) - then, I don't know about others but,
> I would expect that the options are there already at that stage.  It
> would be unintuitive if after 'populate' the element is not yet ready
> made.

I disagree. If you create form elements by perl, not via load_config_file, 
than you are working on the elements until you call 'process/render'. So in 
my understanding the only function call that tells me that the form is 
complete is 'process/render'.

> Or let's say I want to delete some of the generated options - because
> even if they come from the database I don't want them in the form -
> then again I would expect that after the call to populate the element
> is ready and I can delete from it the options that I don't want.

This is only a problem when the solution *must* be found within FormFu. I deal 
with this situation by making a user defined search, that's why you can say 
which search function to use and give search attributes.
An other possibility would be to define a callback function which preprocesses 
the resultset. In my opinion this contradicts the goal to divide M, V and C 
as this logic belongs into the model. But you are welcome to create a patch, 
that I can include.

> Isn't that what you would expect?

Well, when you could be more concrete on what you would like to realise, it 
would be easier to find apropriate, not general, solutions.


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