From: Leanan Sidhe
I have heard that TIMTOWTDI, but the only suggestions I've seen were in
regards to password fields and using DBIx::Class::DigestColumns. I need to do
some mathematical conversions on columns before the data is put into the
database. I'm trying to do it this way:
my $elements_to_convert = $form->get_all_elements({ type => 'Text'});
foreach my $element (@{$elements_to_convert}) {
if ($element->attributes->{'class'} =~ /I-want-to-convert-this/){
my $nested_name = $element->nested_name;
my $field_value = $form->param_value($nested_name);
$element->default(($field_value * $conversion));
}
}
However, nothing is working. I've tried $element->default($my_new_value),
$form->default_values($nested_name => $my_new_value),
$form->default_values({$nested_name => $my_new_value}) and
$form->add_valid($nested_name, $my_new_value}). None of these seemed to work.
Is add_valid only for adding new fields? The doc says "The provided value
replaces any current value for the named field." which suggests to me that if I
have a field foo, $form->add_valid(foo, $new_value) should work. But then I
saw this in HTML::FormFu::Model::DBIC: "add_valid works for fieldnames that
don't exist in the form." Which suggest that it only works to add new valid
fields. I'm a little confused by this.
Ideas? Thanks!
I was also very confused about that part of the POD documentation and I found
that the most easy solution is to use:
$c->req->param('password', sha1_hex($c->req->param('password')));
$form->process;
With other words, change the value of $c->req->param('field_name') and not
the value of an element in $form.
Then do $form->process.
This way isn't recommended because this type of change should be done in the
DBIC class and not in the controller, for beeing able for example to do the
same thing from an external program that has nothing to do with the Catalyst
framework, but I don't know how to do this in the class file, because I haven't
seen any example of doing this.
Maybe DBIx::Class::DigestColumns can be extended to accept other type of
changes than just digests...
Octavian
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