增加判断：作业总数大于4份时才可以开启匿评

增加不可重复开启匿评

app/controllers/bids_controller.rb

@@ -1004,27 +1004,37 @@ class BidsController < ApplicationController
   # 启动匿评
   def start_anonymous_comment
     @bid = Bid.find(params[:id])
-    homeworks = @bid.homeworks
+    if(@bid.comment_status == 1)
-    users = homeworks.map { |h| h.user }
+      homeworks = @bid.homeworks
+      if(homeworks && homeworks.count >= 4)
+        @bid.update_column('comment_status', 1)
+        users = homeworks.map { |h| h.user }
 
-    @start_index = rand(homeworks.size)
+        @start_index = rand(homeworks.size)
-    while users[0] == homeworks[@start_index].user
+        while users[0] == homeworks[@start_index].user
-      @start_index = rand(homeworks.size)
+          @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
+
+        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)
+        @statue = 1
+      else
+        @statue = 2
       end
+    else
+      @statue = 3
     end
-    # 修改状态为 '启动匿评'
-    @bid.update_column('comment_status', 1)
 
     respond_to do |format|
       format.js

app/views/bids/start_anonymous_comment.js.erb

@@ -1,2 +1,8 @@
-alert('启动成功')
+<% if @statue == 1%>
-$("#<%= @bid.id %>_start_anonymous_comment").html('<%= link_to "关闭匿评", stop_anonymous_comment_bid_path(@bid), remote: true %>')
+    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 %>');
+<% elsif @statue == 2 %>
+    alert('启动失败\n作业总数大于4份时才能启动匿评');
+<% elsif @statue == 3%>
+    alert("已开启匿评，请务重复开启");
+<% end %>