作业匿评功能

app/controllers/bids_controller.rb

@@ -998,6 +998,46 @@ class BidsController < ApplicationController
 
   end
   
+  # 启动匿评
+  def start_anonymous_comment
+    @bid = Bid.find(params[:id])
+    homeworks = @bid.homeworks
+    users = homeworks.map { |h| h.user }
+    
+    @start_index = rand(homeworks.size)
+    while users[0] == homeworks[@start_index].user
+      @start_index = rand(homeworks.size)
+    end
+
+    3.times do |i|
+      homework_start_index = @start_index + i
+      users.each_with_index do |user, index|
+        actual_index = homework_start_index + index
+        actual_index = (actual_index < homeworks.size ? actual_index : actual_index - homeworks.size)
+        if user != homeworks[actual_index]
+          @homework_evaluation = HomeworkEvaluation.new(user_id: user.id, homework_attach_id: homeworks[actual_index].id)
+          @homework_evaluation.save
+        end
+      end
+    end
+    # 修改状态为 '启动匿评'
+    @bid.update_column('comment_status', 1)
+
+    respond_to do |format|
+      format.js
+    end
+  end
+
+   def stop_anonymous_comment
+    @bid = Bid.find(params[:id])
+
+    @bid.update_column('comment_status', 2)
+
+    respond_to do |format|
+      format.js
+    end
+  end
+
   private
 
   def find_bid

app/models/homework_evaluation.rb

@@ -3,4 +3,7 @@ class HomeworkEvaluation < ActiveRecord::Base
 
   belongs_to :homework_attach
   belongs_to :user
+  
+  validate :user, presence: true
+  validate :homework_attach, presence: true
 end

app/views/bids/_bid_homework_show.html.erb

@@ -34,6 +34,16 @@
                       <% end %>
                   <% end %>
                   <% if (User.current.admin?||User.current.id==bid.author_id) %>
+                    <span id="<%=bid.id %>_anonymous_comment">
+                      <% case bid.comment_status %>
+                      <% when 0 %>
+                        <%= link_to '启动匿评', start_anonymous_comment_bid_path(bid), id: "#{bid.id}_start_anonymous_comment", remote: true %>
+                      <% when 1 %>
+                        <%= link_to '关闭匿评', stop_anonymous_comment_bid_path(bid), id: "#{bid.id}_stop_anonymous_comment", remote: true %>
+                      <% when 2 %>
+                        已关闭匿评
+                      <% end %>
+                    </span>
                       <%= link_to(
                             l(:button_edit),
                             {:action => 'edit', :controller=>'bids', :course_id =>@course.id, :bid_id => bid.id},

app/views/bids/start_anonymous_comment.js.erb

@@ -0,0 +1,2 @@
+alert('启动成功')
+$("#<%= @bid.id %>_start_anonymous_comment").html('<%= link_to "关闭匿评", stop_anonymous_comment_bid_path(@bid), remote: true %>')

app/views/bids/stop_anonymous_comment.js.erb

@@ -0,0 +1,2 @@
+alert('关闭成功')
+$("#<%= @bid.id %>_anonymous_comment").html('已关闭匿评')

config/routes.rb

@@ -329,6 +329,8 @@ RedmineApp::Application.routes.draw do
   resources :bids, :only=>[:edit,:update,:show] do
     member do
       match 'homework_ajax_modal'
+      get 'start_anonymous_comment', as: 'start_anonymous_comment'
+      get 'stop_anonymous_comment', as: 'stop_anonymous_comment'
     end
   end
   resources :projects do

db/migrate/20141102054414_add_comment_status_to_bid.rb

@@ -0,0 +1,5 @@
+class AddCommentStatusToBid < ActiveRecord::Migration
+  def change
+    add_column :bids, :comment_status, :integer, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20141031111632) do
+ActiveRecord::Schema.define(:version => 20141102054414) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -108,6 +108,7 @@ ActiveRecord::Schema.define(:version => 20141031111632) do
     t.string   "password"
     t.integer  "is_evaluation"
     t.integer  "proportion",     :default => 60
+    t.integer  "comment_status", :default => 0
   end
 
   create_table "boards", :force => true do |t|