我的资源里面显示来源 和大小 并可以下载课件

app/api/mobile/entities/attachment.rb

@@ -29,6 +29,8 @@ module Mobile
       attachment_expose :quotes
       attachment_expose :created_on
       attachment_expose :file_dir
+      attachment_expose :attafile_size
+      attachment_expose :coursename   #所属班级名
     end
   end
 end

app/api/mobile/entities/exercise.rb

@@ -3,6 +3,7 @@ module Mobile
     class Exercise < Grape::Entity
       expose :exercise_name
       expose :exercise_description
+      expose :coursename #所属班级名
     end
   end
 end

app/api/mobile/entities/homework.rb

@@ -94,6 +94,8 @@ module Mobile
 
       homework_expose :homework_anony_type #是否是匿评作业
 
+      homework_expose :coursename #所属班级名
+
     end
   end
 end

app/services/resources_service.rb

@@ -1,7 +1,7 @@
 #coding=utf-8
 
 class ResourcesService
-
+  include ActionView::Helpers::NumberHelper
   #发送资源到课程
   def send_resource_to_course user,params
     send_id  = params[:send_id]
@@ -59,6 +59,12 @@ class ResourcesService
 
     attchments = Attachment.where("(author_id = #{user.id} and is_publish = 1 and container_id in #{courses_ids} and container_type = 'Course') or (container_type = 'Course' and is_publish = 1 and container_id in #{courses_ids})" ).order("created_on desc")
 
+    attchments.each do |v|
+      course =  Course.where("id=?",v.container_id).first
+      v[:coursename] = course.nil? ? "未知" : course.name
+      v[:attafile_size] = (number_to_human_size(v[:filesize])).gsub("ytes", "").to_s
+    end
+
     attchments
   end
 
@@ -71,6 +77,11 @@ class ResourcesService
 
     homeworks = HomeworkCommon.where("course_id in #{courses_ids} and publish_time <= ?",Time.now.strftime("%Y-%m-%d")).order("created_at desc")
 
+    homeworks.each do |v|
+      course =  Course.where("id=?",v.course_id).first
+      v[:coursename] = course.nil? ? "未知" : course.name
+    end
+
     homeworks
   end
 
@@ -83,6 +94,11 @@ class ResourcesService
 
     exercises = Exercise.where("exercise_status <> 1 and course_id in #{courses_ids}").order("created_at desc")
 
+    exercises.each do |v|
+      course =  Course.where("id=?",v.course_id).first
+      v[:coursename] = course.nil? ? "未知" : course.name
+    end
+
     exercises
   end
 

public/assets/wechat/myresource.html

@@ -12,22 +12,22 @@
 
     <div ng-class="{'undis': currentTab!=1}">
       <div ng-repeat="r in resources|filter:{filename:searchText}" ng-class="['class-detail-row', 'f13', 'c-grey3', {'border-top': $first}]">
-        <img src="/images/wechat/courseware.png" width="15" class="ml10 fl" /> <span class="fl ml10 resource-width">{{r.filename}}</span><a ng-click="sendFile(r)" class="fr mr10 link-blue2">发送</a><div class="cl"></div>
-        <span class="f12 mt5 ml35 c-grey4">课件来源：</span><span class="f12 ml10 mt5 c-grey4">大小：</span>
+        <img src="/images/wechat/courseware.png" width="15" class="ml10 fl" /> <a ng-href="/attachments/download/{{r.id}}/{{r.filename}}" target="_blank" class="fl ml10 resource-width">{{r.filename}}</a><a ng-click="sendFile(r)" class="fr mr10 link-blue2">发送</a><div class="cl"></div>
+        <span class="f12 mt5 ml35 c-grey4">课件来源：{{r.coursename}}</span><span class="f12 ml10 mt5 c-grey4">大小：{{r.attafile_size}}</span>
       </div>
         <p ng-show="resources && resources.length<=0" class="class-test-tip">暂无课件,<br />
             请登录Trustie网站,在PC浏览器中上传课件。</p>
     </div>
     <div ng-class="{'undis': currentTab!=2}">
       <div ng-repeat="r in homeworks|filter:{homework_name: searchText}" ng-class="['class-detail-row', 'f13', 'c-grey3', {'border-top': $first}]"><img src="/images/wechat/homework.png" width="15" class="ml10 fl" /><span class="fl ml10 resource-width">{{r.homework_name}}</span><a ng-click="sendFile(r)" class="fr mr10 link-blue2">发送</a><div class="cl"></div>
-        <span class="f12 mt5 ml35 c-grey4">作业来源：</span>
+        <span class="f12 mt5 ml35 c-grey4">作业来源：{{r.coursename}}</span>
       </div>
         <p ng-show="homeworks && homeworks.length<=0" class="class-test-tip">暂无作业,<br />
             请登录Trustie网站,在PC浏览器中创建作业。</p>
     </div>
     <div ng-class="{'undis': currentTab!=3}">
       <div ng-repeat="r in exercise|filter:{exercise_name: searchText}" ng-class="['class-detail-row', 'f13', 'c-grey3', {'border-top': $first}]"><img src="/images/wechat/test.png" width="15" class="ml10 fl" /><span class="fl ml10 resource-width">{{r.exercise_name}}</span><a ng-click="sendFile(r)" class="fr mr10 link-blue2">发送</a><div class="cl"></div>
-        <span class="f12 mt5 ml35 c-grey4">题目来源：</span>
+        <span class="f12 mt5 ml35 c-grey4">题目来源：{{r.coursename}}</span>
       </div>
         <p ng-show="exercise && exercise.length<=0" class="class-test-tip">暂无测验,<br />
             请登录Trustie网站,在PC浏览器中创建测验。</p>