[chiliproject#593] Generate wiki content notifications in the Journal…

…Observer

This will prevent the usage of the wrong wiki_content status.

The code is not overly pretty and deserves a thorough refactoring, but at
least it solves the problem at hand.

app/models/journal_observer.rb

@@ -16,8 +16,28 @@ class JournalObserver < ActiveRecord::Observer
   attr_accessor :send_notification
 
   def after_create(journal)
-    if journal.type == "IssueJournal" and !journal.initial? and send_notification
-      after_create_issue_journal(journal)
+    case journal.type
+    when "IssueJournal"
+      if !journal.initial? && send_notification
+        after_create_issue_journal(journal)
+      end
+    when "WikiContentJournal"
+      wiki_content = journal.journaled
+      wiki_page = wiki_content.page
+
+      if journal.initial?
+        if Setting.notified_events.include?('wiki_content_added')
+          (wiki_content.recipients + wiki_page.wiki.watcher_recipients).uniq.each do |recipient|
+            Mailer.deliver_wiki_content_added(wiki_content, recipient)
+          end
+        end
+      else
+        if Setting.notified_events.include?('wiki_content_updated')
+          (wiki_content.recipients + wiki_page.wiki.watcher_recipients + wiki_page.watcher_recipients).uniq.each do |recipient|
+            Mailer.deliver_wiki_content_updated(wiki_content, recipient)
+          end
+        end
+      end
     end
     clear_notification
   end

config/environment.rb

@@ -61,7 +61,7 @@
 
   # Activate observers that should always be running
   # config.active_record.observers = :cacher, :garbage_collector
-  config.active_record.observers = :journal_observer, :message_observer, :issue_observer, :news_observer, :document_observer, :wiki_content_observer, :comment_observer
+  config.active_record.observers = :journal_observer, :message_observer, :issue_observer, :news_observer, :document_observer, :comment_observer
 
   # Make Active Record use UTC-base instead of local time
   # config.active_record.default_timezone = :utc