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.\" ========================================================================
.\"
.IX Title "Mojolicious::Plugin::Config 3pm"
.TH Mojolicious::Plugin::Config 3pm "2017-01-24" "perl v5.24.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Mojolicious::Plugin::Config \- Perl\-ish configuration plugin
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&  # myapp.conf (it\*(Aqs just Perl returning a hash)
\&  {
\&    # Just a value
\&    foo => "bar",
\&
\&    # Nested data structures are fine too
\&    baz => [\*(Aq♥\*(Aq],
\&
\&    # You have full access to the application
\&    music_dir => app\->home\->child(\*(Aqmusic\*(Aq)
\&  };
\&
\&  # Mojolicious
\&  my $config = $app\->plugin(\*(AqConfig\*(Aq);
\&  say $config\->{foo};
\&
\&  # Mojolicious::Lite
\&  my $config = plugin \*(AqConfig\*(Aq;
\&  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 $config = plugin Config => {file => \*(Aq/etc/myapp.stuff\*(Aq};
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Mojolicious::Plugin::Config is a Perl-ish configuration plugin.
.PP
The application object can be accessed via \f(CW$app\fR or the \f(CW\*(C`app\*(C'\fR 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 \*(L"moniker\*(R" in Mojolicious
(\f(CW\*(C`$moniker.conf\*(C'\fR). You can extend the normal configuration file
\&\f(CW\*(C`$moniker.conf\*(C'\fR with \f(CW\*(C`mode\*(C'\fR specific ones like \f(CW\*(C`$moniker.$mode.conf\*(C'\fR, which
will be detected automatically.
.PP
The code of this plugin is a good example for learning to build new plugins,
you're welcome to fork it.
.PP
See \*(L"\s-1PLUGINS\*(R"\s0 in Mojolicious::Plugins for a list of plugins that are available
by default.
.SH "OPTIONS"
.IX Header "OPTIONS"
Mojolicious::Plugin::Config supports the following options.
.SS "default"
.IX Subsection "default"
.Vb 2
\&  # Mojolicious::Lite
\&  plugin Config => {default => {foo => \*(Aqbar\*(Aq}};
.Ve
.PP
Default configuration, making configuration files optional.
.SS "ext"
.IX Subsection "ext"
.Vb 2
\&  # Mojolicious::Lite
\&  plugin Config => {ext => \*(Aqstuff\*(Aq};
.Ve
.PP
File extension for generated configuration filenames, defaults to \f(CW\*(C`conf\*(C'\fR.
.SS "file"
.IX Subsection "file"
.Vb 3
\&  # Mojolicious::Lite
\&  plugin Config => {file => \*(Aqmyapp.conf\*(Aq};
\&  plugin Config => {file => \*(Aq/etc/foo.stuff\*(Aq};
.Ve
.PP
Path to configuration file, absolute or relative to the application home
directory, defaults to the value of the \f(CW\*(C`MOJO_CONFIG\*(C'\fR environment variable or
\&\f(CW\*(C`$moniker.conf\*(C'\fR in the application home directory.
.SH "METHODS"
.IX Header "METHODS"
Mojolicious::Plugin::Config inherits all methods from Mojolicious::Plugin
and implements the following new ones.
.SS "load"
.IX Subsection "load"
.Vb 1
\&  $plugin\->load($file, $conf, $app);
.Ve
.PP
Loads configuration file and passes the content to \*(L"parse\*(R".
.PP
.Vb 5
\&  sub load {
\&    my ($self, $file, $conf, $app) = @_;
\&    ...
\&    return $self\->parse($content, $file, $conf, $app);
\&  }
.Ve
.SS "parse"
.IX Subsection "parse"
.Vb 1
\&  $plugin\->parse($content, $file, $conf, $app);
.Ve
.PP
Parse configuration file.
.PP
.Vb 5
\&  sub parse {
\&    my ($self, $content, $file, $conf, $app) = @_;
\&    ...
\&    return $hash;
\&  }
.Ve
.SS "register"
.IX Subsection "register"
.Vb 2
\&  my $config = $plugin\->register(Mojolicious\->new);
\&  my $config = $plugin\->register(Mojolicious\->new, {file => \*(Aq/etc/app.conf\*(Aq});
.Ve
.PP
Register plugin in Mojolicious application and merge configuration.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Mojolicious, Mojolicious::Guides, <http://mojolicious.org>.