foodsoft/app/models/page.rb

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# == Schema Information
#
# Table name: pages
#
# id :integer not null, primary key
# title :string(255)
# body :text
# permalink :string(255)
# lock_version :integer default(0)
# updated_by :integer
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# redirect :integer
# created_at :datetime
# updated_at :datetime
#
class Page < ActiveRecord::Base
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belongs_to :user, :foreign_key => 'updated_by'
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acts_as_versioned :version_column => :lock_version, :limit => 20
self.non_versioned_columns += ['permalink', 'created_at', 'title']
acts_as_tree :order => "title"
attr_accessor :old_title # Save title to create redirect page when editing title
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validates_presence_of :title, :body
validates_uniqueness_of :permalink, :title
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before_validation_on_create :set_permalink
before_validation_on_update :update_permalink
after_update :create_redirect
named_scope :non_redirected, :conditions => {:redirect => nil}
named_scope :no_parent, :conditions => {:parent_id => nil}
def self.permalink(title)
title.gsub(/[\/\.,;@\s]/, "_").gsub(/[\"\']/, "")
end
def set_permalink
unless title.blank?
self.permalink = Page.count == 0 ? "Home" : Page.permalink(title)
end
end
protected
def update_permalink
if changed.include?("title")
set_permalink
self.old_title = changes["title"].first # Save title for creating redirect
end
end
def create_redirect
unless old_title.blank?
Page.create :redirect => id,
:title => old_title,
:body => "Weiterleitung auf [[#{title}]]..",
:permalink => Page.permalink(old_title),
:updated_by => updated_by
end
end
end