Re: [cgiapp] [OT] Q: Configuring - Same app - Different databases

[Valerio VALDEZ Paolini <suppressed>]

Hello,

On Sunday 23 October 2005 00:31, Ron Savage wrote:
> Which method do people use to handle the senario in the Subject:
>
> o DSN/user/pass in the environment?
> 	- If so, you do configure Apache to set the env on a per-location basis?
>
> o Ditto in config files?
> 	- If so, how do you specify which config file?

i usually pass the configuration filename via PARAMS to the new method and 
then load appropriate configuration in the cgiapp_init method:

-- script.cgi --------------------------

use Day::App::Search;
Day::App::Search->new(
  PARAMS => {
   config_filename =>   '/home/httpd/ristoservice/etc/day-new.conf'
 }
)->run;

-- ca_class.pm ----------------------

sub cgiapp_init {
  my $self = shift;
  $self->param(
    'CONFIGURATION' =>  Day::Configuration->instance(
      config_filename => $self->param('config_filename')
    )
  );
[...]

-- configuration_class.pm ---------
package Day::Configuration;
use base 'AKOMI::Configuration::Base', 'Class::Singleton';
sub _defaults {
  my $self = shift;
  my $defaults = $self->SUPER::_defaults;
  $defaults->{delimiter} = '/';
  $defaults->{config_filename} = '/home/httpd/ristoservice/etc/day.conf';
  $defaults->{config_env_var} = 'DC_CONF';

  return $defaults;
}

this solution works very well in small environments, where changing the 
config_filename parameter in few files is not difficult; when dealing with 
complex applications the env solution is useful, so I wrote base 
configuration class which accepts a config_filename parameter or searches for 
a variable in the environment or uses a default value.

Ciao, Valerio

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