Hi all,
I have a form with two Select fields with custom inflators, e.g. a
"city" field and a "state" field that inflate to a My::City and
My::State object. The values for the select fields are ids that are
then passed to the database to inflate into the respective object. I
want to have code that, post-process, will override any submitted state
value to match that of the city (if a city has been provided), e.g.:
# request has city=id_for_seattle_washington, state=id_for_arizona
$form->process($request);
# $form->param_value('city') is a My::City object
# $form->param_value('state') is a My::State object
...
# This will print "Arizona"
print $form->param_value('state')->name;
if ($form->param_value('city')) {
$form->add_valid('state', $form->param_value('city')->state);
}
# Now this will print "Washington"
print $form->param_value('state')->name;
The above code all works fine, until I go to render the form. The
'state' dropdown does not have anything selected, neither Washington nor
Arizona. If I change the code so that we pass the id to add_valid(), e.g.:
...
if ($form->param_value('city')) {
$form->add_valid('state', $form->param_value('city')->state_id);
}
...
The form renders fine but we choke on this line:
print $form->param_value('state')->name;
because param_value now returns a plain scalar holding the ID rather
than an inflated object. I guess this is because inflators are not run
after calls to add_valid.
I got around this by adding code to look at the return of param_value
and inflate on my own if it's not a ref to a My::State, but this is
somewhat kludgy and involves a chunk of duplicate code. Is there a more
elegant way of doing this?
I should note that I also have deflators for both elements that do what
you would expect, but they don't seem to help in this situation.
Thanks,
Steve
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