实践课程的调整

app/models/subject.rb

@@ -46,6 +46,10 @@ class Subject < ApplicationRecord
     courses.where("start_date <= '#{Date.today}' and end_date >= '#{Date.today}'").count > 0
   end
 
+  def has_participate?
+    subject_appointments.exists?(user_id: User.current.id)
+  end
+
   # 挑战过路径的成员数(金课统计去重后的报名人数)
   def member_count
     excellent ? CourseMember.where(role: 4, course_id: courses.pluck(:id)).pluck(:user_id).length : shixuns.pluck(:myshixuns_count).sum

app/views/subjects/show.json.jbuilder

@@ -28,5 +28,6 @@ if @subject.excellent
   if @subject.max_course_end_date.nil? || @subject.max_course_end_date < Date.today
     json.student_count @subject.student_count
     json.participant_count @subject.participant_count
+    json.has_participate @subject.has_participate?
   end
 end