count为空的情况

app/controllers/ec_course_achievement_methods_controller.rb

@@ -229,7 +229,7 @@ class EcCourseAchievementMethodsController < ApplicationController
       evaluation_subitems_list = []
       # 总成绩支撑只有课程考核标准的名称， 分项成绩支撑是课程考核标准名称与考核分项的笛卡尔积
       if e.status == 1
-        for k in 1..e.evluation_count
+        for k in 1..(e.evluation_count || 1)
           # id为-1 表示：总成绩支撑，没有id
           evaluation_subitems_list << {id: -1, name: "#{e.name}（#{k}）", position: k}
         end
@@ -239,7 +239,7 @@ class EcCourseAchievementMethodsController < ApplicationController
             evaluation_subitems_list << {id: ces.id, name: "#{ces.name}", position: j+1}
           end
         else
-          for k in 1..e.evluation_count
+          for k in 1..(e.evluation_count || 1)
             e.ec_course_evaluation_subitems.each_with_index do |ces, j|
               evaluation_subitems_list << {id: ces.id, name: "#{e.name}（#{k}）:#{ces.name}", position: k}
             end