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

@@ -1004,7 +1004,10 @@ class BidsController < ApplicationController
   # 启动匿评
   def start_anonymous_comment
     @bid = Bid.find(params[:id])
+    if(@bid.comment_status == 1)
       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)
@@ -1024,7 +1027,14 @@ class BidsController < ApplicationController
           end
         end
         # 修改状态为 '启动匿评'
-    @bid.update_column('comment_status', 1)
+        #@bid.update_column('comment_status', 1)
+        @statue = 1
+      else
+        @statue = 2
+      end
+    else
+      @statue = 3
+    end
 
     respond_to do |format|
       format.js

app/views/bids/start_anonymous_comment.js.erb

@@ -1,2 +1,8 @@
-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 %>')
+<% if @statue == 1%>
+    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 %>