教师开启匿评功能完成

app/controllers/homework_common_controller.rb

@@ -1,7 +1,7 @@
 class HomeworkCommonController < ApplicationController
   layout "base_courses"
   before_filter :find_course, :only => [:index,:new,:create]
-  before_filter :find_homework, :only => [:edit,:update,:alert_anonymous_comment]
+  before_filter :find_homework, :only => [:edit,:update,:alert_anonymous_comment,:start_anonymous_comment]
   before_filter :teacher_of_course, :only => [:new, :create, :edit, :update, :destroy, :start_anonymous_comment, :stop_anonymous_comment, :alert_anonymous_comment]
 
   def index
@@ -124,8 +124,30 @@ class HomeworkCommonController < ApplicationController
   end
 
   #开启匿评
+  #statue 1:启动成功，2：启动失败，作业总数大于等于2份时才能启动匿评，3:已开启匿评，请务重复开启,4:没有开启匿评的权限
   def start_anonymous_comment
-
+    @statue =4 and return unless User.current.admin? || User.current.allowed_to?(:as_teacher,@course)
+    if @homework_detail_manual.comment_status == 1
+      student_works = @homework.student_works
+      if student_works && student_works.size >=2
+        student_works.each_with_index do |work, index|
+          user = work.user
+          n = @homework_detail_manual.evaluation_num
+          n = n < student_works.size ? n : student_works.size - 1
+          assigned_homeworks = get_assigned_homeworks(student_works, n, index)
+          assigned_homeworks.each do |h|
+            student_works_evaluation_distributions = StudentWorksEvaluationDistribution.new(user_id: user.id, student_work_id: h.id)
+            student_works_evaluation_distributions.save
+          end
+        end
+        @homework_detail_manual.update_column('comment_status', 2)
+        @statue = 1
+      else
+        @statue = 2
+      end
+    else
+      @statue = 3
+    end
   end
 
   #关闭匿评
@@ -170,4 +192,9 @@ class HomeworkCommonController < ApplicationController
   def teacher_of_course
     render_403 unless User.current.allowed_to?(:as_teacher,@course)
   end
+
+  def get_assigned_homeworks(student_works, n, index)
+    student_works += student_works
+    student_works[index + 1 .. index + n]
+  end
 end

app/views/homework_common/start_anonymous_comment.js.erb

@@ -0,0 +1,10 @@
+<% if @statue == 1%>
+alert('启动成功');
+$("#<%= @homework.id %>_start_anonymous_comment").replaceWith('<%= escape_javascript(link_to "关闭匿评", alert_anonymous_comment_homework_common_path(@homework), remote: true, id:"#{@homework.id}_stop_anonymous_comment",:class => "fr mr10 work_edit")%>');
+<% elsif @statue == 2 %>
+alert('启动失败\n作业总数大于等于2份时才能启动匿评');
+<% elsif @statue == 3%>
+alert("已开启匿评，请务重复开启");
+<% elsif @statue == 3%>
+alert("您没有权限开启匿评");
+<% end %>