添加作业时增加教师评分所占比例设置

app/controllers/bids_controller.rb

@@ -498,10 +498,10 @@ class BidsController < ApplicationController
         #增加作业按评分排序，
         #@homework_list = @bid.homeworks.eager_load(:rate_averages, :user, :attachments).order('seems_rateable_cached_ratings.avg DESC').order("#{HomeworkAttach.table_name}.created_at ASC")
          @homework_list = HomeworkAttach.eager_load(:attachments,:user,:rate_averages).find_by_sql("SELECT homework_attaches.*,
-            (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id = #{@bid.courses.first.teacher.id}) AS t_score,
-            (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id <> #{@bid.courses.first.teacher.id}) AS s_score
+            (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id = #{@bid.author_id}) AS t_score,
+            (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id <> #{@bid.author_id}) AS s_score
             FROM homework_attaches WHERE bid_id = #{@bid.id} ORDER BY
-            (CASE WHEN t_score IS NULL THEN 0 ELSE t_score * 0.6 END + CASE WHEN s_score IS NULL THEN 0 ELSE s_score * 0.4 END) DESC,created_at ASC")
+            (CASE WHEN t_score IS NULL THEN 0 ELSE t_score * #{@bid.proportion * 1.0 / 100} END + CASE WHEN s_score IS NULL THEN 0 ELSE s_score * #{1 - @bid.proportion * 1.0 / 100} END) DESC,created_at ASC")
         if params[:student_id].present?
           @temp = []
           @homework_list.each do |pro|
@@ -788,6 +788,7 @@ class BidsController < ApplicationController
     @bid.name = params[:bid][:name]
     @bid.description = params[:bid][:description]
     @bid.is_evaluation = params[:bid][:is_evaluation]
+    @bid.proportion = params[:bid][:proportion]
     @bid.reward_type = 3
     # @bid.budget = params[:bid][:budget]
     @bid.deadline = params[:bid][:deadline]

app/controllers/courses_controller.rb

@@ -490,6 +490,7 @@ class CoursesController < ApplicationController
   # 新建作业
   def new_homework
     @homework = Bid.new
+    @homework.proportion
     @homework.safe_attributes = params[:bid]
     if (User.current.logged? && User.current.member_of_course?(Course.find params[:id] ))
       render :layout => 'base_courses'

app/helpers/courses_helper.rb

@@ -83,6 +83,19 @@ module CoursesHelper
     type << option2
   end
 
+  def proportion_option
+    type = []
+    i = 0
+    while i <= 100
+      option = []
+      option << i.to_s + "%"
+      option << i
+      type << option
+      i = i + 10
+    end
+    type
+  end
+
 
   alias teacherCountOrigin teacherCount
   def teacherCount project
@@ -308,7 +321,7 @@ module CoursesHelper
   #最终评分 = 学生评分的平均分 * 0.4 +教师评分 * 0.6
   def score_for_homework homework
     if  homework.bid.is_evaluation == 1 || homework.bid.is_evaluation == nil
-      return format("%.2f",(teacher_score_for_homework(homework).to_f * 0.6 + student_score_for_homework(homework).to_f * 0.4))
+      return format("%.2f",(homework.bid.proportion * 1.0 / 100) * (teacher_score_for_homework(homework).to_f) + (1 - homework.bid.proportion * 1.0 / 100) * (student_score_for_homework(homework).to_f))
     else
       return teacher_score_for_homework homework
     end

app/views/courses/_homework_form.html.erb

@@ -34,6 +34,8 @@
 </p>
 <p><%= f.select :is_evaluation, is_evaluation_option %>
 </p>
+<p><%= f.select :proportion, proportion_option %>
+</p>
 <p><%= hidden_field_tag 'course_id', @course.id %>
 </p>
 <fieldset><legend><%= l(:label_attachment_plural) %></legend>

config/locales/zh.yml

@@ -1573,6 +1573,7 @@ zh:
   field_budget: 奖励
   field_deadline: 截止日期
   field_is_evaluation: 是否启动互评
+  field_proportion: 教师评分比例
   label_tags_selected: 已选标签
   label_tags_related: 相关标签
   button_project_tags_add: 增加

db/migrate/20140701031909_add_proportion_to_bid.rb

@@ -0,0 +1,5 @@
+class AddProportionToBid < ActiveRecord::Migration
+  def change
+    add_column :bids, :proportion, :integer, default: 60
+  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 => 20140626012511) do
+ActiveRecord::Schema.define(:version => 20140701031909) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -106,6 +106,7 @@ ActiveRecord::Schema.define(:version => 20140626012511) do
     t.integer  "parent_id"
     t.string   "password"
     t.integer  "is_evaluation"
+    t.integer  "proportion",    :default => 60
   end
 
   create_table "boards", :force => true do |t|
@@ -793,7 +794,7 @@ ActiveRecord::Schema.define(:version => 20140626012511) do
   end
 
   create_table "relative_memos", :force => true do |t|
-    t.integer  "osp_id"
+    t.integer  "osp_id",                                :null => false
     t.integer  "parent_id"
     t.string   "subject",                               :null => false
     t.text     "content",                               :null => false