首页增加加入课程按钮，用户可以输入课程ID以及课程密码加入对应的课程，已过期课程会给出对应提示

app/controllers/courses_controller.rb

@@ -14,7 +14,7 @@ class CoursesController < ApplicationController
   menu_item l(:label_sort_by_influence), :only => :index
 
   before_filter :can_show_course, :except => []
-  before_filter :find_course, :except => [ :index, :search,:list, :new,:join,:unjoin, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise,:view_homework_attaches]
+  before_filter :find_course, :except => [ :index, :search,:list, :new,:join,:unjoin, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise,:view_homework_attaches,:join_private_courses]
   before_filter :authorize_course, :only => [:show, :settings, :edit, :update, :modules, :close, :reopen, :view_homework_attaches, :course]
   before_filter :authorize_course_global, :only => [:view_homework_attaches, :new,:create]
   before_filter :require_admin, :only => [:copy, :archive, :unarchive, :destroy, :calendar]
@@ -60,6 +60,14 @@ class CoursesController < ApplicationController
     end
   end
 
+  def join_private_courses
+
+    respond_to do |format|
+      # format.html { redirect_to_referer_or {render :text => (watching ? 'Watcher added.' : 'Watcher removed.'), :layout => true}}
+      format.js
+    end
+  end
+
   #更新课程信息
   def update
     @course.safe_attributes = params[:course]

app/views/courses/_join_private_course.html.erb

@@ -0,0 +1,59 @@
+<!-- added by fq -->
+<style>
+    input[type="submit"].bid_btn {
+        vertical-align: middle;
+        width: 60px;/*modified by ming*/
+        height: 25px;
+        line-height: 19px;
+        font-size: 14px;
+        color: rgb(0, 0, 0);
+        background: buttonface;/*url("/images/button/bg103.jpg") no-repeat scroll left top transparent;*/
+        padding: 0px 0px 4px 0px;
+        border-radius: 2px;
+        border: 1px solid rgb(148, 148, 148);
+        box-shadow: none;
+        text-shadow: none;
+        /*margin-top: -10px;*/
+        /*margin-right: -4px;*/
+    }
+    input[type="button"].bid_btn {
+        width: 60px;/*modified by ming*/
+        height: 25px;
+        line-height: 19px;
+        font-size: 14px;
+        color: rgb(0, 0, 0);
+        background: buttonface;/*url("/images/button/bg103.jpg") no-repeat scroll left top transparent;*/
+        padding: 0px 0px 4px 0px;
+        border-radius: 2px;
+        border: 1px solid rgb(148, 148, 148);
+        box-shadow: none;
+        text-shadow: none;
+        /*margin-top: -10px;*/
+        margin-right: -2px;
+    }
+    textarea:focus {
+        border: #d5dee9 1px solid;
+    }
+</style>
+
+<h3 class="title">请输入课程密码</h3>
+
+<%= form_tag({:controller => 'courses',
+              :action => 'join'},
+             :remote => true,
+             :method => :post,
+             :id => 'new-watcher-form') do %>
+    <div>
+      <span>课程ID：</span>
+      <%= text_field_tag 'object_id', nil, :style=>'width:80%'%>
+    </div>
+    <div>
+      <span>密码：</span>
+      <%= text_field_tag 'course_password', nil, :style=>'width:80%'%>
+    </div>
+
+    <p class="buttons" style="padding-top: 10px; padding-bottom: 1px; margin-bottom: 1px">
+      <%= submit_tag l(:label_new_join), :name => nil, :class => "bid_btn", :onclick => "hideModal(this);" %>
+      <%= submit_tag l(:button_cancel), :name => nil, :class => "bid_btn", :onclick => "hideModal(this);", :type => 'button' %>
+    </p>
+<% end %>

app/views/courses/join_private_courses.js.erb

@@ -0,0 +1,3 @@
+$('#ajax-modal').html('<%= escape_javascript(render :partial => 'join_private_course') %>');
+showModal('ajax-modal', '400px');
+$('#ajax-modal').addClass('new-watcher');

app/views/layouts/base_courses.html.erb

@@ -80,9 +80,9 @@
                         <% else %>
                             <%= join_in_course(@course, User.current) %>
                         <% end %>
-                        <% unless User.current.member_of_course?(@course) %>
+                        <%# unless User.current.member_of_course?(@course) %>
                             <!-- <%#= image_tag "/images/fav.png" %> -->
-                        <% end %>
+                        <%# end %>
                     <% end %>
                   </div>
                 </td>

app/views/projects/_new_join.html.erb

@@ -56,6 +56,7 @@
   <p class="buttons" style="padding-top: 10px; padding-bottom: 1px; margin-bottom: 1px">
     <%= submit_tag l(:label_new_join), :name => nil, :class => "bid_btn", :onclick => "hideModal(this);" %>
     <%= submit_tag l(:button_cancel), :name => nil, :class => "bid_btn", :onclick => "hideModal(this);", :type => 'button' %>
+  </p>
 </td>
 </tr></table>
 <% end %>

app/views/welcome/course.html.erb

@@ -127,6 +127,8 @@
     <strong><%= l(:label_issue_feedback_activities)%></strong>
     <%= link_to l(:label_my_question), newbie_send_path, {:class => 'orangeButton idea_btn', :style => "color: #EEEEEE"} %>
     <%= link_to l(:label_my_feedback), suggestion_send_path, {:class => 'orangeButton idea_btn', :style => "color: #EEEEEE"} %>
+    <!-- 加入课程按钮 -->
+    <%#= link_to "加入私有课程", join_private_courses_courses_path ,:remote => true %>
   </h3>
   <span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", forums_path %></span>
 

config/routes.rb

@@ -31,7 +31,6 @@ RedmineApp::Application.routes.draw do
   #match '/contests/:id/contestnotifications', :controller => 'contestnotifications', :action => 'index'
 
   resources :homework_users
-
   resources :no_uses
   delete 'no_uses', :to => 'no_uses#delete'
 
@@ -626,7 +625,12 @@ RedmineApp::Application.routes.draw do
       get 'member', :controller => 'courses', :action => 'member', :as => 'member'
       post 'finishcourse'
       post 'restartcourse'
+
     end
+    collection do
+      match 'join_private_courses', :via => [:get, :post]
+    end
+
     match '/member', :to => 'courses#member',  :as => 'member', :via => :get
     resources :boards
     resources :files, :only => [:index, :new, :create] do