Mojolicious::Plugin::Config

Section: User Contributed Perl Documentation (3)
Updated: 2018-11-22
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NAME

Mojolicious::Plugin::Config - Perl-ish configuration plugin

SYNOPSIS

  # myapp.conf (it's just Perl returning a hash)
  {
    # Just a value
    foo => "bar",

    # Nested data structures are fine too
    baz => ['♥'],

    # You have full access to the application
    music_dir => app->home->child('music')
  };

  # Mojolicious
  my $config = $app->plugin('Config');
  say $config->{foo};

  # Mojolicious::Lite
  my $config = plugin 'Config';
  say $config->{foo};

  # foo.html.ep
  %= $config->{foo}

  # The configuration is available application-wide
  my $config = app->config;
  say $config->{foo};

  # Everything can be customized with options
  my $config = plugin Config => {file => '/etc/myapp.stuff'};

DESCRIPTION

Mojolicious::Plugin::Config is a Perl-ish configuration plugin.

The application object can be accessed via $app or the "app" function, strict, warnings, utf8 and Perl 5.10 features are automatically enabled. A default configuration filename in the application home directory will be generated from the value of ``moniker'' in Mojolicious ("$moniker.conf"). You can extend the normal configuration file "$moniker.conf" with "mode" specific ones like "$moniker.$mode.conf", which will be detected automatically.

If the configuration value "config_override" has been set in ``config'' in Mojolicious when this plugin is loaded, it will not do anything.

The code of this plugin is a good example for learning to build new plugins, you're welcome to fork it.

See ``PLUGINS'' in Mojolicious::Plugins for a list of plugins that are available by default.

OPTIONS

Mojolicious::Plugin::Config supports the following options.

default

  # Mojolicious::Lite
  plugin Config => {default => {foo => 'bar'}};

Default configuration, making configuration files optional.

ext

  # Mojolicious::Lite
  plugin Config => {ext => 'stuff'};

File extension for generated configuration filenames, defaults to "conf".

file

  # Mojolicious::Lite
  plugin Config => {file => 'myapp.conf'};
  plugin Config => {file => '/etc/foo.stuff'};

Path to configuration file, absolute or relative to the application home directory, defaults to the value of the "MOJO_CONFIG" environment variable or "$moniker.conf" in the application home directory.

METHODS

Mojolicious::Plugin::Config inherits all methods from Mojolicious::Plugin and implements the following new ones.

load

  $plugin->load($file, $conf, $app);

Loads configuration file and passes the content to ``parse''.

  sub load {
    my ($self, $file, $conf, $app) = @_;
    ...
    return $self->parse($content, $file, $conf, $app);
  }

parse

  $plugin->parse($content, $file, $conf, $app);

Parse configuration file.

  sub parse {
    my ($self, $content, $file, $conf, $app) = @_;
    ...
    return $hash;
  }

register

  my $config = $plugin->register(Mojolicious->new);
  my $config = $plugin->register(Mojolicious->new, {file => '/etc/app.conf'});