班级的配置页面，管理员增加“更换管理员”功能

app/controllers/courses_controller.rb

@@ -354,6 +354,41 @@ class CoursesController < ApplicationController
     #search_group_members group
   end
 
+  def change_manager
+    if params[:chooseteacher]
+      man_member = Member.where(:course_id => @course.id, :user_id => @course.tea_id).first
+      cha_member = Member.find params[:chooseteacher]
+      if man_member && cha_member
+        cha_member.member_roles.where("role_id = 9 || role_id = 7").first.update_attributes(:role_id => 3, :is_current => 1)
+        if cha_member.member_roles.where("role_id = 10").count > 0
+          cha_member.member_roles.where("role_id = 10").first.destroy
+          StudentsForCourse.where(:course_id => @course.id, :student_id => cha_member.user_id).destroy_all
+        end
+        @course.update_attributes(:tea_id => cha_member.user_id)
+        man_member.member_roles.first.update_attributes(:role_id => 9)
+        course_act = CourseActivity.where(:course_id => @course.id, :course_act_id => @course.id, :course_act_type => 'Course').first
+        course_act.update_column('user_id', cha_member.user_id)
+        UserActivity.where(:act_id => @course.id, :container_type => 'Course', :act_type => 'Course', :container_id => @course.id).first.update_column('user_id', cha_member.user_id)
+      end
+    end
+  end
+
+  def search_course_teacher_list
+    q = params[:search] ? "#{params[:search].strip}" : ""
+    @members = searchTeacherAndAssistantNoManager(@course)
+    if q.nil? || q == ""
+    else
+      members = []
+      @members.each do |m|
+        username = m.user[:lastname].to_s.downcase + m.user[:firstname].to_s.downcase
+        if m && m.user && (m.user[:login].to_s.downcase.include?(q) ||  m.user[:mail].to_s.downcase.include?(q) || username.include?(q))
+          members << m
+        end
+      end
+      @members = members
+    end
+  end
+
   #查找未分班的学生
   def search_not_group_member
     @group = CourseGroup.find params[:group_id]

app/helpers/courses_helper.rb

@@ -257,6 +257,14 @@ module CoursesHelper
     count.to_s << '+'
   end
 
+  def searchTeacherAndAssistantNoManager course
+    members = []
+    course.members.includes(:user).each do |m|
+      members << m  if m && m.user && m.user != course.teacher && m.user.has_teacher_role(course)
+    end
+    members
+  end
+
   # =====================================================================================
   # return people list
   def searchTeacherAndAssistant project

app/views/courses/change_manager.js.erb

@@ -0,0 +1 @@
+window.location.href = "<%= settings_course_path(@course.id, :tab => 'member') %>";

app/views/courses/search_course_teacher_list.js.erb

@@ -0,0 +1 @@
+$("#search_member_list").html("<%= escape_javascript(render :partial => 'courses/settings/search_teacher_list', :locals => {:members => @members}) %>");

app/views/courses/settings/_change_manager.html.erb

@@ -0,0 +1,76 @@
+<div id="muban_popup_box" style="width:424px;">
+  <div class="muban_popup_top">
+    <h3 class="fl">更换管理员</h3>
+    <a href="javascript:void(0);" class="muban_icons_close fr"></a>
+    <div class="cl"></div>
+  </div>
+  <div class="muban_popup_con clear">
+    <div class="mr10 ml10">
+      <div class="alert alert-orange mb10 mt10">
+        选择的成员将会成为新的管理员，您的角色将变更为“教师”
+      </div>
+      <div class="" style="border: 1px solid #ccc">
+        <input type="text" name="search" value="<%=@search %>" placeholder="支持姓名、邮箱、登录名搜索" class="subjectSearch" style="height: 32px; width: 380px; margin: 5px 7px 0 7px; border: 1px solid #e5e5e5;" />
+        <div class="cl"></div>
+        <%= form_tag(change_manager_course_path(@course), method: 'post', :remote => true, :class => "",:id => "change_manager_form") do  %>
+            <div id="search_member_list" style="padding: 0 7px;">
+              <%=render :partial => 'courses/settings/search_teacher_list', :locals => {:members => nil} %>
+            </div>
+        <% end %>
+        <div class="cl"></div>
+        <div class="cl"></div>
+      </div>
+      <div class="mt10">
+        <span class="c_red none" id="add_members_notice"></span>
+
+        <a href="javascript:void(0);" class="fr sy_btn_blue" onclick="submit_add_members_form();">确定</a>
+        <a href="javascript:void(0);" class="fr sy_btn_grey mr10" onclick="hideModal();">取消</a>
+        <div class="cl"></div>
+      </div>
+    </div>
+  </div>
+</div>
+<script>
+    var lastSearchCondition = '';
+    var count = 0;
+    function search_mems(e){
+        if($(e.target).val().trim() == lastSearchCondition && lastSearchCondition != '')
+        {
+            return;
+        }
+        lastSearchCondition = $(e.target).val().trim();
+        $.ajax({
+            url: '<%= url_for(:controller => 'courses', :action => 'search_course_teacher_list', :id => @course.id) %>'+'?search='+ e.target.value,
+            type:'get'
+        });
+    }
+
+    function throttle(method,context,e){
+        clearTimeout(method.tId);
+        method.tId=setTimeout(function(){
+            method.call(context,e);
+        },500);
+    }
+
+    //查询项目
+    $("input[name='search']").on('input', function (e) {
+        throttle(search_mems,window,e);
+    });
+
+    $(document).ready(function(){
+        $.ajax({
+            url: '<%= url_for(:controller => 'courses', :action => 'search_course_teacher_list', :id => @course.id) %>',
+            type:'get'
+        });
+    });
+
+    function submit_add_members_form(){
+        if($("input[name='chooseteacher']:checked").length == 0) {
+            $("#add_members_notice").show();
+            $("#add_members_notice").html("请先选择成员");
+        } else{
+            $("#change_manager_form").submit();
+            hideModal();
+        }
+    }
+</script>

app/views/courses/settings/_course_member.html.erb

@@ -59,12 +59,16 @@
           <% end %>
         </td>
         <td>
-          <% unless member.user == @course.teacher %>
+          <% if member.user == @course.teacher %>
+              <% if User.current == @course.teacher %>
+                <a href="javascript:void(0)" class="sy_btn_green" onclick="change_manager();">更换管理员</a>
+              <% end %>
+          <% else %>
               <a href="javascript:void(0)" class="sy_btn_blue mr5" onclick="edit_member($(this), <%=member.id %>);">编辑</a>
               <a href="javascript:void(0)" class="sy_btn_blue mr5" style="display: none;" onclick="$('#member-<%= member.id%>-roles-form').submit();">保存</a>
               <a href="javascript:void(0)" class="sy_btn_grey mr5" style="display: none;" onclick="cancel_edit($(this), <%=member.id %>);">取消</a>
               <a href="javascript:void(0)" class="sy_btn_grey mr5" id="delete_member_<%=member.id %>" onclick="delete_confirm_box_2('<%=membership_path(member) %>', '<%= l(:label_delete_confirm)%>')">删除</a>
-          <% end %>
+        <% end %>
         </td>
       </tr>
   <% end %>
@@ -87,4 +91,8 @@
         $('#delete_member_' + id).show();
         $(div).hide();
     }
+    function change_manager(){
+        var htmlvalue = "<%= escape_javascript(render :partial => 'courses/settings/change_manager') %>";
+        pop_box_new(htmlvalue, 424, 366);
+    }
 </script>

app/views/courses/settings/_search_teacher_list.html.erb

@@ -0,0 +1,12 @@
+<ul class="mt10" style="height:160px; min-height:160px; max-height:160px; overflow:auto;">
+  <% unless members.nil? || members.empty? %>
+      <% members.each do |mem| %>
+        <li>
+          <input type="radio" name="chooseteacher" value="<%=mem.id %>" class="mr5" style="vertical-align:middle;" />
+          <span class="break_word" style="width: 350px;"><%=mem.user.show_name %>（<%= mem.user.login %>）</span>
+        </li>
+      <% end %>
+  <% end %>
+</ul>
+
+<div class="cl"></div>

config/routes.rb

@@ -1362,6 +1362,8 @@ RedmineApp::Application.routes.draw do
       get "switch_role"
       get 'search_not_group_member'
       post 'add_members'
+      get 'search_course_teacher_list'
+      post 'change_manager'
       get 'delete_member'
       get 'archive_course'
       get 'set_invite_code_halt'