Introduction To Catalyst - Part 1

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

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

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

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

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

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

Introduction To Catalyst - Part 1

by Dan Dascalescu

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