Redmine 3.4.4

app/models/comment.rb

@@ -0,0 +1,38 @@
+# Redmine - project management software
+# Copyright (C) 2006-2017  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 Comment < ActiveRecord::Base
+  include Redmine::SafeAttributes
+  belongs_to :commented, :polymorphic => true, :counter_cache => true
+  belongs_to :author, :class_name => 'User'
+
+  validates_presence_of :commented, :author, :comments
+  attr_protected :id
+
+  after_create :send_notification
+
+  safe_attributes 'comments'
+
+  private
+
+  def send_notification
+    mailer_method = "#{commented.class.name.underscore}_comment_added"
+    if Setting.notified_events.include?(mailer_method)
+      Mailer.send(mailer_method, self).deliver
+    end
+  end
+end