NAME

CGI::Application::URIMapping - A dispatcher and permalink builder

SYNOPSIS

package MyApp::URIMapping;

use base qw/CGI::Application::URIMapping/;
use MyApp::Page1;
use MyApp::Page2;

package MyApp;

use base qw/CGI::Application/;

sub setup {
  my $self = shift;
  $self->run_modes(MyApp::URIMapping->run_modes_of(ref $self));
}

package MyApp::Page1;

# registers subroutine ``page1'' for given path
MyApp::URIMapping->register({
  path  => 'page1/:p1/:p2?',
  query => [ qw/q1 q2 q3/ ]
});

sub page1 {
  ...
}

# build_uri, generates: http://host/page1/p-one?q1=q-one&q3=q-three
my $permalink = MyApp::URIMapping->build_uri({
  app    => 'MyApp::Page1',
  rm     => 'page1',
  params => {
    p1 => 'p-one',
    q1 => 'q-one',
    q3 => 'q-three',
  },
});

DESCRIPTION

CGI::Application::URIMapping is a dispatcher / permalink builder for CGI::Application. It is implemented as a wrapper of CGI::Application::Dispatch.

As can be seen in the synopsis, CGI::Application::URIMapping is designed to be used as a base class for defining a mapping for each CGI::Application-based web application.

METHODS

register

The class method assigns a runmode to more than one paths. There are various ways of calling the function.

MyApp::URIMapping->register('path');
MyApp::URIMapping->register('path/:required_param/:optional1?/:optional2?');

MyApp::URIMapping->register({
  path  => 'path',
  query => [ qw/n1 n2/ ],
});

MyApp::URIMapping->register({
  rm       => 'run_mode',
  path     => 'path',
  protocol => 'https',
  host     => 'myapp.example.com',
});

MyApp::URIMapping->register({
  app  => 'MyApp::Page2',
  rm   => 'run_mode',
  path => [
    'path1/:p1/:p2?/:p3?' => {
      query => [ qw/n1 n2/ ],
    },
    'path2' => {
      query => [ qw/p1 p2 p3 n1 n2/ ],
    },
  ],
});

The attributes recognized by the function is as follows.

app

Name of the package in which the run mode is defined. If ommited, name of the current package is being used.

rm

Name of the runmode. If omitted, basename of the first path attribute is being used.

path

A path (or an array of paths) to be registered for the runmode. The syntax of the paths are equivalent to that of CGI::Application::Dispatch with the following exceptions. The attributes app and rm need not be defined for each path, since they are already specified. Procotol, host, query attributes are accepted.

protocol

Specifies protocol to be used for given runmode when building a permalink.

host

Limits the registration to given host if specified.

query

List of parameters to be marshallised when building a premalink. The parameters will be marshallized in the order of the array.

build_uri

Builds a permalink by given package name, runmode, and parameters.

MyApp::URIMapping->build_uri({
  app => 'MyApp::Page1',
});

MyApp::URIMapping->build_uri({
  app => 'MyApp::Page1',
  rm  => 'page1',
});

MyApp::URIMapping->build_uri({
  app      => 'MyApp::Page1',
  params   => {
    p1 => 'p-one',
    n1 => 'n-one',
  },
  procotol => 'https',
});

MyApp::URIMapping->build_uri({
  app    => 'MyApp::Page1',
  params => [
    {
      p1 => 'p-one',
    },
    $cgi_app,
    $cgi_app->query,
  ],
});

The function recognized the following attributes.

app

Package of the runmode.

rm

Name of the runmode. If omitted, the last portion of the package name will be used uncamelized.

params

List of values to be filled in when building the URI. The values can be supplied either as hashes, as a object that implements a param method, or as an array of the two. When an array is supplied, parameter values are search from the first entry to the last.

AUTHOR

Copyright (c) 2007 Cybozu Labs, Inc. All rights reserved.

written by Kazuho Oku <kazuhooku@gmail.com>

LICENSE

This program is free software; you can redistribute it and/or modify it under th e same terms as Perl itself.

See http://www.perl.com/perl/misc/Artistic.html