编程作业报500

app/helpers/application_helper.rb

@@ -3623,8 +3623,9 @@ def course_syllabus_option user = User.current
 end
 
 def create_works_list homework
-  students = homework.course.student
-  if !homework.course.nil? && !students.empty?
+  unless homework.course.nil?
+    students = homework.course.student
+    if !students.empty?
     name = homework.name
     name_str = name + "的作品提交"
     str = ""
@@ -3636,6 +3637,7 @@ def create_works_list homework
     end
     sql = "insert into student_works (name, homework_common_id,user_id, created_at, updated_at) values" + str
     ActiveRecord::Base.connection.execute sql
+    end
   end
 end