Catalyst debug trick

well, we always meet this when we develop a Catalyst application:
* we want -Debug and StackTrace or DBIC::Schema::Profiler when we develop the Catalyst App.
* we don't want -Debug like in the production server because it costs much.

Sometimes u may want a config name like debug_mode to control whether we want or not.
Here comes my solution:

__PACKAGE__->setup();

__PACKAGE__->log->levels('error', 'fatal'); # for real server
if( __PACKAGE__->config->{debug_mode} ) {
    
    __PACKAGE__->log->enable('debug', 'info', 'warn'); # for developer server
    {
        # these code are copied from Catalyst.pm setup_log
        no strict 'refs';
        my $class = __PACKAGE__;
        *{"$class\::debug"} = sub { 1 };
    }
    
    my @extra_plugins = qw/ StackTrace DBIC::Schema::Profiler /;
    __PACKAGE__->setup_plugins( [ @extra_plugins ] );
}

Full code please check Foorum.pm

now u can set debug_mode: 1 in _local.yml when u develop and forget it in production server.

Explanation:
* why we write code after __PACKAGE__->setup(); is because we want __PACKAGE__->config->{debug_mode}. config is setup in ->setup().
* *{"$class\::debug"} = sub { 1 }; means $c->debug is on. code from Catalyst.pm
* __PACKAGE__->setup_plugins( [ @extra_plugins ] ); will setup extra_plugins whenever u want.

@Enjoy;