完成课程讨论区消息回复方法

app/models/message.rb

@@ -197,6 +197,54 @@ class Message < ActiveRecord::Base
       self.course_acts << CourseActivity.new(:user_id => self.author_id,:course_id => self.board.course_id)
     end
   end
+
+  # 课程讨论区添加消息
+  # 老师发帖所有人都能收到消息
+  # 学生发帖，有人回复则给该学生消息，没回复则不给其它人发送消息
+  # 帖子被回复的可以收到消息通知
+  def act_as_course_message
+    if self.course
+      if self.parent_id.nil?   #主贴
+        self.course.members.each do |m|
+          if self.author.allowed_to?(:as_teacher, self.course)   # 老师
+            if m.user_id != self.author_id      # 自己的帖子不给自己发送消息
+              self.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => self.board.course_id, :viewed => false)
+            end
+          end
+        end
+      else    # 回帖
+        #if self.author.allowed_to?(:as_teacher, self.course)   # 老师
+          self.course.members.each do |m|
+            if m.user_id ==  Message.find(self.parent_id).author_id  && m.user_id != self.author_id  # 只针对主贴回复，回复自己的帖子不发消息
+              self.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => self.board.course_id, :viewed => false)
+            end
+          end
+        #end
+      end
+    end
+    #  if self.author.allowed_to?(:as_teacher, self.course)    # 如果发帖人是老师
+    #    self.course.members.each do |m|
+    #      if self.parent_id.nil?     # 主贴
+    #        if m.user_id != self.author_id      # 自己的帖子不给自己发送消息
+    #          self.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => self.board.course_id, :viewed => false)
+    #        end
+    #      else   # 回帖只针对主贴发送消息
+    #        if m.user_id ==  Message.find(self.parent_id).author_id
+    #          self.course_messages << CourseMessage.new(:user_id => self.parent_id, :course_id => self.board.course_id, :viewed => false)
+    #        end
+    #      end
+    #    end
+    #  else       # 学生只针对主贴回复
+    #    unless self.parent_id.nil?
+    #      self.course.members.each do |m|
+    #        if m.user_id ==  Message.find(self.parent_id).author_id  && m.user_id != self.author_id  # 只针对主贴回复，回复自己的帖子不发消息
+    #          self.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => self.board.course_id, :viewed => false)
+    #        end
+    #      end
+    #    end
+    #  end
+    #end
+  end
   
   #更新用户分数     -by zjc
   def be_user_score

app/views/users/user_messages.html.erb

@@ -50,6 +50,15 @@
                   <li class="homepageNewsTime fl"><%= time_tag(ucm.course_message.created_at).html_safe %> </li>
                 </ul>
             <% end %>
+            <% if ucm.course_message_type == "Message" %>
+                <ul class="homepageNewsList fl">
+                  <li class="homepageNewsPortrait fl"><a href="javascript:void(0);"><img src="images/newsPortrait.png" width="35" height="35" /></a></li>
+                  <li class="homepageNewsPublisher fl"><a href="javascript:void(0);" class="newsBlue"><%= ucm.course_message.author %></a></li>
+                  <li class="homepageNewsType fl">发布帖子</li>
+                  <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey"><%= ucm.course_message.subject %></a></li>
+                  <li class="homepageNewsTime fl"><%= time_tag(ucm.course_message.created_on).html_safe %> </li>
+                </ul>
+            <% end %>
             <div class="cl"></div>
         <% end %>
       </div>