返回课程的接口补上当前用户是否为课程成员，课程老师信息

app/services/courses_service.rb

@@ -211,7 +211,7 @@ class CoursesService
       @course.members << m
       @course.course_infos << course
     end
-    @course
+    {:course => @course,:img_url => url_to_avatar(@course),:current_user_is_member => current_user.member_of_course?(@course),:current_user_is_teacher => is_course_teacher(current_user,@course)}
   end
 
   #验证编辑课程的权限
@@ -248,7 +248,7 @@ class CoursesService
         course_status = CourseStatus.create(:course_id => course.id,  :grade => 0)
       end
     end
-    course
+    {:course => course,:img_url => url_to_avatar(course),:current_user_is_member => current_user.member_of_course?(course),:current_user_is_teacher => is_course_teacher(current_user,course)}
   end
 
   #退出课程

app/services/homework_service.rb

@@ -6,6 +6,7 @@ class HomeworkService
    include WordsHelper
    include ApiHelper
    include HomeworkAttachHelper
+   include CoursesHelper
    
   # 作业详情（老师才显示启动匿评，学生不显示 ）
   # many_times 第几次（作业）
@@ -276,7 +277,7 @@ class HomeworkService
         hw = bid.homeworks.where("user_id = #{current_user.id}")
         my_homeworks << hw[0] unless (hw.nil? || hw[0].nil?)
       end
-      course_list << {:course => mp.course,:img_url => url_to_avatar(mp.course),:my_homework => my_homeworks}
+      course_list << {:course => mp.course,:img_url => url_to_avatar(mp.course),:my_homework => my_homeworks,:current_user_is_member => current_user.member_of_course?(mp.course),:current_user_is_teacher => is_course_teacher(current_user,mp.course)}
     end
     course_list
   end