Makes the wiki sidebar editable (#5208).

The content of the wiki page named 'Sidebar' is rendered in the sidebar if it exists. Permission to edit protected pages is required to create this page.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3632 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/wiki.rb

@@ -29,6 +29,12 @@ class Wiki < ActiveRecord::Base
     !user.nil? && user.allowed_to?(:view_wiki_pages, project)
   end
   
+  # Returns the wiki page that acts as the sidebar content
+  # or nil if no such page exists
+  def sidebar
+    @sidebar ||= find_page('Sidebar', :with_redirect => false)
+  end
+  
   # find the page with the given title
   # if page doesn't exist, return a new page
   def find_or_new_page(title)

app/models/wiki_content.rb

@@ -34,6 +34,10 @@ class WikiContent < ActiveRecord::Base
     page.project
   end
   
+  def attachments
+    page.nil? ? [] : page.attachments
+  end
+  
   # Returns the mail adresses of users that should be notified
   def recipients
     notified = project.notified_users

app/models/wiki_page.rb

@@ -41,6 +41,15 @@ class WikiPage < ActiveRecord::Base
   validates_uniqueness_of :title, :scope => :wiki_id, :case_sensitive => false
   validates_associated :content
   
+  # Wiki pages that are protected by default
+  DEFAULT_PROTECTED_PAGES = %w(sidebar)
+  
+  def after_initialize
+    if new_record? && DEFAULT_PROTECTED_PAGES.include?(title.to_s.downcase)
+      self.protected = true
+    end
+  end
+  
   def visible?(user=User.current)
     !user.nil? && user.allowed_to?(:view_wiki_pages, project)
   end