Adds email notifications support for news comments (#2074).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5003 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/comment_observer.rb

@@ -0,0 +1,24 @@
+# Redmine - project management software
+# Copyright (C) 2006-2011  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class CommentObserver < ActiveRecord::Observer
+  def after_create(comment)
+    if comment.commented.is_a?(News) && Setting.notified_events.include?('news_comment_added')
+      Mailer.deliver_news_comment_added(comment)
+    end
+  end
+end

app/models/mailer.rb

@@ -1,5 +1,5 @@
-# redMine - project management software
-# Copyright (C) 2006-2007  Jean-Philippe Lang
+# Redmine - project management software
+# Copyright (C) 2006-2011  Jean-Philippe Lang
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -148,6 +148,24 @@ class Mailer < ActionMailer::Base
          :news_url => url_for(:controller => 'news', :action => 'show', :id => news)
     render_multipart('news_added', body)
   end
+  
+  # Builds a tmail object used to email recipients of a news' project when a news comment is added.
+  #
+  # Example:
+  #   news_comment_added(comment) => tmail object
+  #   Mailer.news_comment_added(comment) => sends an email to the news' project recipients
+  def news_comment_added(comment)
+    news = comment.commented
+    redmine_headers 'Project' => news.project.identifier
+    message_id comment
+    recipients news.recipients
+    cc news.watcher_recipients
+    subject "Re: [#{news.project.name}] #{l(:label_news)}: #{news.title}"
+    body :news => news,
+         :comment => comment,
+         :news_url => url_for(:controller => 'news', :action => 'show', :id => news)
+    render_multipart('news_comment_added', body)
+  end
 
   # Builds a tmail object used to email the recipients of the specified message that was posted. 
   #

app/models/news.rb

@@ -1,5 +1,5 @@
 # Redmine - project management software
-# Copyright (C) 2006-2008  Jean-Philippe Lang
+# Copyright (C) 2006-2011  Jean-Philippe Lang
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -28,6 +28,9 @@ class News < ActiveRecord::Base
   acts_as_event :url => Proc.new {|o| {:controller => 'news', :action => 'show', :id => o.id}}
   acts_as_activity_provider :find_options => {:include => [:project, :author]},
                             :author_key => :author_id
+  acts_as_watchable
+  
+  after_create :add_author_as_watcher
   
   named_scope :visible, lambda {|*args| { 
     :include => :project,
@@ -42,4 +45,10 @@ class News < ActiveRecord::Base
   def self.latest(user = User.current, count = 5)
     find(:all, :limit => count, :conditions => Project.allowed_to_condition(user, :view_news), :include => [ :author, :project ], :order => "#{News.table_name}.created_on DESC")	
   end
+  
+  private
+  
+  def add_author_as_watcher
+    Watcher.create(:watchable => self, :user => author)
+  end
 end