MojoMojo - the Elegant wiki, Catalyst-powered

MojoMojo The Elegant wiki, Catalyst-powered Dan Dascalescu (dandv) YAPC::NA 2009-Jun-23 Twitter: mojomojowiki

Yet Another Perl Wiki? Not really.

Wikimatrix

… and more

Perl wikis
TWiki
Foswiki fork
Socialtext
UseMod
Oddmuse
PodWiki
ikiwiki
November
WebGUI

Differentiating wiki features
Hosted vs. install your own
Storage: text files vs. database
Page structure: flat vs. hierarchical
Editing usability – preview?
Folksonomy: tags?
Access control

Storage
Flat text
Scales “reasonably well”, ~10k pages
CERN: “users of larger webs will experience slower search and index response times”
Yahoo!: >300k pages, but slow
Database
Mediawiki
Pages in the millions

Page structure Paris (genus) /botany/paris Paris (mythology) /mythology/greek/paris Paris, Texas /geography/usa/texas/paris Paris /geography/europe/france/paris Flat structure Tree hierarchy

When hierarchy doesn’t cut it
You encounter this dog in a park in Paris, France

SuperFantastic - “Buddha Dog”, http://www.flickr.com/photos/35423169@N00/50088733 Under what path do you wiki about this?

Q: Which hierarchical path?
travel/france/fun
travel/fun/france
fun/animals
fun/travel
animals/fun

A: it doesn’t really matter
Add tags:
travel
France
Paris
animals
dog
fun
Prozac

Editing usability
Wikipedia editing study
Bolt|peters user experience - http://boltpeters.com/wikipedia/

Study finding
The vast majority of users pulled up another instance of the Wikipedia page they were editing in order to see what it "really" looked like.

Usability recommendation
Provide users a live preview of what the page looks like as the user edits it.

WYSIWYG not a panacea yet
Show me the code
Crippled - dive demo at Foswiki

Access control

Wiki theory
“ Everyone should be able edit any page”

Theory vs. practice
In theory, there is no difference between theory and practice. In practice, there is. - Yogi Berra

Wiki practice
The Movable Type wiki (the old, unofficial one) was closed down due to vandalism they couldn’t stop. - Deane Barker, Gadgetopia, http://gadgetopia.com/post/6595

Other features
Extensibility
Markup language

Perl wiki candidates

TWiki
Evil
Use Foswiki

Foswiki
Forked off TWiki
Storage: text files in RCS
Page structure: 2-level, web/page
Tags: no
Markup language: TWiki only (+HTML)
Preview: static, sequential; or WYSIWYG
Tons of plugins

Foswiki: - flat structure + breadcrumbs

ikiwiki
Storage: text files in RCS
Markup language: flexible
Preview: static - code then output
Tags: no
Barebones
Last release: 2008-Oct

November
Storage: ?
Page structure: ?
Tags: ?
Markup language: ?
Preview: ?

PodWiki
Storage: text files
Markup language: multiple
Abandoned since 2007

Socialtext
Hosted
Target: mostly enterprise
Socialtext Open source code on GitHub
Storage: PostgreSQL via DBI
Markup language: multiple
Socialtext Unplugged works offline via TiddlyWiki + synching
3 people on #socialtext
Topic: #socialtext - your place for git help

UseModWiki
Derived from the original arcane WikiWikiWeb
Links are always like “ GlueTheWordsTogether ”
Abandoned since 2007
OddMuse forked off it

Oddmuse
Storage: text files (no RCS)
Page structure: abandoned children
Preview: static - output then code
Markup language: plugins
“ Oddmuse is one Perl script ” (CGI)
7 folks on #oddmuse

Who’s the parent of this page?

WebGUI
Popular as a CMS
A massive case of Not Invented Here Syndrome:
Auth.pm
Cache.pm
Session.pm
SQL.pm: “Package for interfacing with SQL databases. This package implements Perl DBI functionality in a less code-intensive manner and adds some extra functionality.”

The problems so far
Storage in text files
Preview sucks
No hierarchical page structure
No tags

MojoMojo
A Web2.0 wiki, web-server and database-backend agnostic, with live side-by-side AJAX preview, hierarchical page structure, pluggable syntax (HTML + Markdown/Textile, POD), tags, page permissions, RSS feeds, conflict resolution via 3-way merge, attachments with photo gallery, skinning, built-in search, localized in 9 languages, and plugins for DocBook,

Authors
Marcus Ramberg
On GitHub:
http://github.com/marcusramberg/mojomojo

Technology
Catalyst
DBIx::Class, SQL nested set trees
Template::Toolkit
HTML::FormFu
KinoSearch
Algorithm::Diff
HTML::Defang
… and the rest of CPAN

Live preview, try it @ mojomojo.org

Hierarchical page structure and breadcrumbs

Pluggable syntax
Formatter chain runs in order:
HTML::Defang
[[Wikilinks]]
POD
Markdown/Textile

Skinnable

RSS feeds

Extending MojoMojo (live demos)

Creating a simple formatter
A CPAN hyperlink
{{cpan My::Module}} -> http://search.cpan.org/perldoc?My::Module

diff wiki blog
wiki
Timeless
One topic = all info
Prefers collaboration to comments
blog
Time-sensitive
Series of posts on one topic
Prefers comments to collaboration
A blog formatter - demo

MojoMojo’s Future
Major efforts:
Moosify
KiokuDB?
Migrate MediaWiki databases
40+ suggestions at http://mojomojo.ideascale.com

Resources
http://mojomojo.org
#mojomojo on irc.perl.org
Twitter: mojomojowiki
mojomojo.ideascale.com - suggestions
Source code on GitHub

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MojoMojo - the Elegant wiki, Catalyst-powered

by Dan Dascalescu on Jun 24, 2009

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