Introduction to Catalyst The Elegant Web Framework Dan Dascalescu (dandv)

What is Catalyst? “the” Perl web application framework Most actively developed (2005 – 2 wks ago) Most widely used Most flexible Backward-compatible

“the” Perl web application framework

Most actively developed (2005 – 2 wks ago)

Most widely used

Most flexible

Backward-compatible

Catalyst philosophy TIMTOWTDI crystallized, DRY, glue Model-View-Controller “ Catalyst diet”: fat model, thin controller Flexibility Models: DBIx::Class, KiokuDB, Net::LDAP, SVN etc. Views: Template Toolkit, GraphViz, HTML::Seamstress, Mason, XSLT, PHP (!) etc. Forms: HTML::FormFu, Reaction, FormBuilder Deployment: built-in server, FastCGI, mod_perl 210 plugins on CPAN

TIMTOWTDI crystallized, DRY, glue

Model-View-Controller

“ Catalyst diet”: fat model, thin controller

Flexibility

Models: DBIx::Class, KiokuDB, Net::LDAP, SVN etc.

Views: Template Toolkit, GraphViz, HTML::Seamstress, Mason, XSLT, PHP (!) etc.

Forms: HTML::FormFu, Reaction, FormBuilder

Deployment: built-in server, FastCGI, mod_perl

210 plugins on CPAN

Production ready Support (built-in or plugins) for: Any database (via Perl’s DBI) Any model (Catalyst::Model::Adaptor) Authentication: Flickr, HTTP, OpenID etc. Authorization: ACL, Roles Cache: FastMmap, FileCache, BerkeleyDB, and Memcached CAPTCHA Compression (Bzip2, Gzip etc.) Crypto RIA: Dojo, Prototype Sessions Static file serving Unicode RPC: JSONRPC, XMLRPC; Catalyst::Action::REST

Support (built-in or plugins) for:

Any database (via Perl’s DBI)

Any model (Catalyst::Model::Adaptor)

Authentication: Flickr, HTTP, OpenID etc.

Authorization: ACL, Roles

Cache: FastMmap, FileCache, BerkeleyDB, and Memcached

CAPTCHA

Compression (Bzip2, Gzip etc.)

Crypto

RIA: Dojo, Prototype

Sessions

Static file serving

Unicode

RPC: JSONRPC, XMLRPC; Catalyst::Action::REST

From Perl to Catalyst in 15 minutes TinyURL app See screencast at http:// bit.ly/dandv -catalyst eq http://wiki.dandascalescu.com/howtos/catalyst/introduction_to_catalyst

TinyURL app

See screencast at http:// bit.ly/dandv -catalyst

eq

http://wiki.dandascalescu.com/howtos/catalyst/introduction_to_catalyst

Helpers Built-in helpers to create: skeleton application: catalyst.pl MyApp models: script inyurl_create.pl model DB DBIC::Schema TinyURL::Schema create=static "dbi:SQLite:tinyurl.db" AutoCRUD views: script inyurl_create.pl view HTML TT controllers: script/myapp_create.pl controller Name

Built-in helpers to create:

skeleton application: catalyst.pl MyApp

models:

script inyurl_create.pl model DB DBIC::Schema TinyURL::Schema create=static "dbi:SQLite:tinyurl.db"

AutoCRUD

views:

script inyurl_create.pl view HTML TT

controllers:

script/myapp_create.pl controller Name

Resources Catalyst wiki (dogfood-powered by MojoMojo) : http://dev.catalystframework.org/wiki #catalyst on irc.perl.org Catalyst mailing list http://snipurl.com/catalyst-mailing-list

Catalyst wiki (dogfood-powered by MojoMojo) :

http://dev.catalystframework.org/wiki

#catalyst on irc.perl.org

Catalyst mailing list

http://snipurl.com/catalyst-mailing-list