添加课程动态接口

app/api/mobile/apis/courses.rb

@@ -216,7 +216,7 @@ module Mobile
         get "course_dynamic/:id" do
           cs = CoursesService.new
           count = cs.course_dynamic(params,current_user)
-          present :data, count
+          present :data, count, with: Mobile::Entities::CourseDynamic
           present :status, 0
         end
 

app/api/mobile/entities/course_dynamic.rb

@@ -0,0 +1,17 @@
+module Mobile
+  module Entities
+    class CourseDynamic < Grape::Entity
+      def self.course_dynamic_expose(field)
+        expose field do |c,opt|
+          c[field] if (c.is_a?(Hash) && c.key?(field))
+        end
+      end
+
+      course_dynamic_expose :course_name
+      course_dynamic_expose :need_anonymous_comments_count
+      course_dynamic_expose :student_commit_number
+      course_dynamic_expose :news_count
+      course_dynamic_expose :message_count
+    end
+  end
+end

app/helpers/api_helper.rb

@@ -44,8 +44,7 @@ module ApiHelper
   #param: user => "用户", course_id => "查询的课程ID"
   #return: 作业的数量
   #########################################################
-  def get_course_anonymous_evaluation user,course_id
-    course = Course.find course_id
+  def get_course_anonymous_evaluation user,course
     count = 0
     if course
       is_teacher = is_course_teacher user,course
@@ -59,6 +58,6 @@ module ApiHelper
         end
       end
     end
-    count
+    [count,is_teacher]
   end
 end

app/services/courses_service.rb

@@ -327,9 +327,20 @@ class CoursesService
     end
   end
 
-  def course_dynamic params,current_user
-    count = get_course_anonymous_evaluation current_user,params[:id]
-    count
+  def course_dynamic(params,current_user)
+    course = Course.find(params[:id])
+    if current_user.nil? || !(current_user.admin? || course.is_public == 1 || (course.is_public == 0 && current_user.member_of_course?(course)))
+      raise '403'
+    end
+    count,is_teacher = get_course_anonymous_evaluation current_user,course
+    if is_teacher
+      student_commit_number = count
+    else
+      need_anonymous_comments_count = count
+    end
+    news_count = course.news.count
+    message_count = course.journals_for_messages.count
+    {:course_name => course.name,:need_anonymous_comments_count=>need_anonymous_comments_count,:student_commit_number=>student_commit_number,:news_count=> news_count,:message_count=>message_count}
   end
 
   private