修改填空题的多空的正确率问题

app/helpers/exercises_helper.rb

@@ -185,29 +185,83 @@ module ExercisesHelper
         standard_answer_count = 0
         each_null_score = null_stand_choice.size > 0 ? (ex&.question_score.to_f / null_stand_choice.uniq.size).round(3) : 0.0
         all_user_count = 0
-        null_stand_choice.each_with_index do |s,index|
-          user_count = 0
-          if ex_ordered   #有序排列
+
+        if ex_ordered
+          null_stand_choice.each_with_index do |s,index|
+            user_count = 0
             s_choice_text = null_stand_text[index]
             user_count = user_count + effictive_users.select{|answer| answer.exercise_choice_id == s && answer.answer_text == s_choice_text}.size
-          else
-            null_stand_text = null_stand_text.uniq
-            s_choice_text = null_stand_text[index]
-            user_count = user_count + effictive_users.select{|answer| answer.answer_text == s_choice_text }.size  #回答了标准答案的用户
+            # if ex_ordered #有序排列,或者有重复答案的时候，不按无序排列
+            #
+            # else
+            #   # null_stand_text = null_stand_text.uniq
+            #   s_choice_text = null_stand_text[index]
+            #   user_count = user_count + effictive_users.select{|answer| answer.answer_text == s_choice_text }.size  #回答了标准答案的用户
+            # end
+
+            answer_percent = ((effictive_users_count == 0) ? 0.0 : (user_count / effictive_users_count.to_f ).round(3))
+            answer_option = {
+              :choice_position => index+1,
+              :choice_text => s_choice_text,
+              :choice_users_count => user_count,
+              :choice_percent => answer_percent.round(2).to_s,
+              :right_answer => true
+            }
+            question_answer_infos.push(answer_option)
+            all_user_count += user_count
+            standard_answer_count += 1
           end
+        else
+          cycled_stand = {}
+          null_stand_text.each_with_index do |stand, index|
+            user_count = 0
+            if cycled_stand.length > 0 && cycled_stand.keys.include?(stand)
+              cycled_stand.store(stand, cycled_stand["#{stand}"])
+              user_count = cycled_stand["#{stand}"]
+              calculate_user_count = 0
+            else
+              user_count = user_count + effictive_users.select{|answer| answer.answer_text == stand }.size
+              cycled_stand.store(stand, user_count)
+              calculate_user_count = user_count
+            end
 
-          answer_percent = ((effictive_users_count == 0) ? 0.0 : (user_count / effictive_users_count.to_f ).round(3))
-          answer_option = {
+            answer_percent = ((effictive_users_count == 0) ? 0.0 : (user_count / effictive_users_count.to_f ).round(3))
+            answer_option = {
               :choice_position => index+1,
-              :choice_text => s_choice_text,
+              :choice_text => stand,
               :choice_users_count => user_count,
               :choice_percent => answer_percent.round(2).to_s,
               :right_answer => true
-          }
-          question_answer_infos.push(answer_option)
-          all_user_count += user_count
-          standard_answer_count += 1
+            }
+            question_answer_infos.push(answer_option)
+            all_user_count += calculate_user_count
+            standard_answer_count += 1
+          end
         end
+
+        # null_stand_choice.each_with_index do |s,index|
+        #   user_count = 0
+        #   if ex_ordered #有序排列,或者有重复答案的时候，不按无序排列
+        #     s_choice_text = null_stand_text[index]
+        #     user_count = user_count + effictive_users.select{|answer| answer.exercise_choice_id == s && answer.answer_text == s_choice_text}.size
+        #   else
+        #     # null_stand_text = null_stand_text.uniq
+        #     s_choice_text = null_stand_text[index]
+        #     user_count = user_count + effictive_users.select{|answer| answer.answer_text == s_choice_text }.size  #回答了标准答案的用户
+        #   end
+        #
+        #   answer_percent = ((effictive_users_count == 0) ? 0.0 : (user_count / effictive_users_count.to_f ).round(3))
+        #   answer_option = {
+        #       :choice_position => index+1,
+        #       :choice_text => s_choice_text,
+        #       :choice_users_count => user_count,
+        #       :choice_percent => answer_percent.round(2).to_s,
+        #       :right_answer => true
+        #   }
+        #   question_answer_infos.push(answer_option)
+        #   all_user_count += user_count
+        #   standard_answer_count += 1
+        # end
         answer_user_score = all_user_count * each_null_score
         percent = (ex_total_score == 0.0 ? 0.0 : (answer_user_score / ex_total_score.to_f).round(3) * 100)  #正确率