You shouldn't try to change the configuration once setup if finished since at
that point everything has been initialized. if you change stuff there its not
going to do anything. Whats the actual use case you are trying to achieve here.
FWIW Calling $c->config for application scoped stuff is ok I believe (no
change, just getting the data). For example if I really need to do a plugin, I
usually do like:
my $adaptor_namespace = sub { my $app = shift; if(my $config =
$app->config->{'Plugin::InjectionHelpers'}) { my $namespace =
$config->{adaptor_namespace}; return $namespace if $namespace; } return
'Catalyst::Model::InjectionHelpers';};
to create a way for the plugin to have stuff in the config. In this case I
also created an anonymous code ref instead of a normal method so that the
plugin would not pollute the application namespace so much.
On Friday, September 25, 2015 8:40 AM, Bill Moseley <mose...@hank.org>
wrote:
I'm confused about this rather stern note in Catalyst.pm.
Is this the following wrapper related to the text in the NOTE?
B<NOTE:> you MUST NOT call C<< $self->config >> or C<< __PACKAGE__->config >>as
a way of reading config within your code, as this B<will not> give you
thecorrectly merged config back. You B<MUST> take the config values supplied
tothe constructor and use those instead.
=cut
around config => sub { my $orig = shift; my $c = shift;
croak('Setting config after setup has been run is not allowed.') if
( @_ and $c->setup_finished );
$c->$orig(@_);};
I understand the NOTE for Model/View/Controllers where the component's
__PACKAGE__->config is merged in with the application config for that
component. Calling $self->config won't be the same thing passed to the
component's constructor.
But, what's the issue with calling $c->config( foo => 123 ) at runtime? Or
even $c->config( \%new_config )?
Note that wrapper only applies to calling config on the app class, and does not
apply to Model/View/Controllers.
Is there some other issues I'm missing? What problem is that wrapper trying
to prevent?
Thanks,
--
Bill Moseley
mose...@hank.org
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