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CGI::Application::Dispatch

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Transcript

  • 1. CGI::Application::Dispatch 2008/06/03 Hideo Kimura
  • 2. CGI::Application
    • MyApp/Index.pm
    • package MyApp::Index;
    • use base qw(CGI::Application);
    • sub setup {
    • my $self = shift;
    • $self->start_mode(‘index’);
    • $self->run_modes(
    • ‘ index’ => ‘index’;
    • }
    • sub index {return ‘Hello World’;}
    • 1;
    • index.cgi
    • #!/usr/bin/perl
    • use MyApp::Index;
    • my $app = MyApp::Index->new;
    • $app->run;
  • 3. CGI::Application の難点
    • CGI モードで動かすときにいちいち run させる cgi が必要
    • URI が汚い
      • /index.cgi?rm=index
      • /index.cgi/index
  • 4. CGI::Application::Dispatch
    • MyApp/Dispach.pm
    • package MyApp::Dispatch;
    • use base qw(CGI::Application::Dispatch);
    • sub dispatch_args {
    • return {
    • prefix => 'MyApp',
    • };
    • }
    • index.cgi
    • #!/usr/bin/perl
    • use MyApp::Dispatch;
    • MyApp::Dispatch->dispatch;
  • 5. CGI::Application::Dispatch
    • /index.cgi/index/index – MyApp::Index->index
    • /index.cgi/foo/bar – MyApp::Foo->bar
    • 一つの CGI でディスパッチしてくれる
  • 6. Dispatchテーブル
    • sub dispatch_args {
    • return {
    • prefix => 'MyApp',
    • table => [
    • '' => { app => ‘Index', rm => ‘index' },
    • ':app/:rm' => { },
    • 'admin/:app/:rm' => { prefix => 'MyApp::Admin' },
    • ‘ news/:id' => { app => ‘News’, rm => ‘index’ },
    • ],
    • };
    • }
    • /index.cgi – MyApp::Index->index
    • /index.cgi/foo/bar – MyApp::Foo->bar
    • /index.cgi/admin/foo/bar – MyApp::Admin::Foo->bar
    • /index.cgi/news/100 – MyApp::News->index($self->param(id => 100))
  • 7. Dispatchテーブルボキャブラリ
    • literal
      • そのまま URL にマッチング
      • admin/
    • variable
      • コロンで始まると $self->param にわたる
      • :id/
    • 特殊な variable
      • :app – モジュール名
      • :rm – ランモード
  • 8. Dispatch テーブルトランスレーション
    • module_name – Module::Name
    • module-name – ModuleName
    • admin_top-scores – Admin::TopScores
  • 9. mod_rewrite で URI を Cool に
    • .htaccess
    • RewriteEngine On
    • RewriteBase /~hide/cgiapp/html
    • # If an actual file or directory is requested, serve directly
    • RewriteCond %{REQUEST_FILENAME} !-f
    • RewriteCond %{REQUEST_FILENAME} !-d
    • # Otherwise, pass everything through to the dispatcher
    • RewriteRule ^(.*)$ /~hide/cgiapp/html/index.cgi/$1 [L,QSA]
    • /
    • /admin/index
    • /news/100
  • 10. Tips
    • PATH_INFO は使わない方がいい
    • モジュールの命名規則は計画的に
    • start_mode は統一した方がいい
  • 11. まとめ
    • 素の CGI::Application よりは 100 倍まし ( 当社比 )
    • でも階層が深くなるとそれなりに面倒くさくなる
    • :app/:rm の束縛が強い
    • Catalyst は Dispatcher としてはかなり優秀
  • 12. ご清聴ありがとうございました
    • m(_ _)m