课堂在线学习

app/models/course.rb

@@ -357,7 +357,7 @@ class Course < ApplicationRecord
   def my_subject_progress
     my_challenge_count = Game.joins(:challenge).where(user_id: User.current.id, status: 2, challenges: {shixun_id: shixuns.published_closed}).
       pluck(:challenge_id).uniq.size
-    course_challeng_count = course.shixuns.pluck(:challenges_count).sum
+    course_challeng_count = shixuns.pluck(:challenges_count).sum
     count = course_challeng_count == 0 ? 0 : ((my_challenge_count.to_f / course_challeng_count).round(2) * 100).to_i
   end
 

app/views/courses/online_learning.json.jbuilder

@@ -8,4 +8,4 @@ json.start_learning @start_learning
 
 json.learned @start_learning ? @course.my_subject_progress : 0
 
-json.last_shixun @start_learning ? last_subject_shixun(@user.id, @subject) : ""
+json.last_shixun @start_learning ? last_subject_shixun(@user.id, @course) : ""