PermalinkFu

Based on https://github.com/technoweenie/permalink_fu

class Article < ActiveRecord::Base
  has_permalink attr_names, permalink_field, options
end

• :if
• :unless
• :unique - true by default
• :scope - skipped when :unique is set to false
• :update - false by default

Stores permalink form of title to the permalink attribute:

has_permalink :title

Stores a permalink form of "#{category}-#{title}" to the permalink attribute:

has_permalink  [:category, :title]

Stores permalink form of category to the category_permalink attribute:

has_permalink :category, :category_permalink

Extend the scope within the parmalink should be unique:

has_permalink :title, :scope => :blog_id

Don't care if permalink in not unique:

has_permalink :title, :unique => false

Update the permalink every time the attribute(s) change:

has_permalink :title, :update => true