完成资源按时间、下载次数排序功能

app/controllers/files_controller.rb

@@ -45,16 +45,28 @@ class FilesController < ApplicationController
   end
 
   def search
-    begin
+    sort = ""
+    @sort = ""
+    @order = ""
     @is_remote = true
+    if params[:sort]
+      order_by = params[:sort].split(":")
+      @sort = order_by[0]
+      if order_by.count > 1
+        @order = order_by[1]
+      end
+      sort = "#{@sort} #{@order}"
+    end
+
+    begin
       q = "%#{params[:name].strip}%"
       #(redirect_to stores_url, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
       if params[:insite]
-        @result = find_public_attache q
+        @result = find_public_attache q,sort
         @result = visable_attachemnts_insite @result,@course
         @searched_attach = paginateHelper @result,10
       else
-        @result = find_course_attache q,@course
+        @result = find_course_attache q,@course,sort
         @result = visable_attachemnts @result
         @searched_attach = paginateHelper @result,10
       end
@@ -65,18 +77,24 @@ class FilesController < ApplicationController
     end
   end
 
-  def find_course_attache keywords,course
-    resultSet = Attachment.where("(attachments.container_type = 'Course'And attachments.container_id = '#{course.id}') OR (attachments.container_type = 'HomeworkAttach' AND )  AND filename LIKE :like ", like: "%#{keywords}%").
-        reorder("created_on DESC")
+  def find_course_attache keywords,course,sort = ""
+    if sort == ""
+      sort =  "created_on DESC"
+    end
+    resultSet = Attachment.where("attachments.container_type = 'Course' And attachments.container_id = '#{course.id}' AND filename LIKE :like ", like: "%#{keywords}%").
+        reorder(sort)
     #resultSet = Attachment.find_by_sql("SELECT `attachments`.* FROM `attachments` LEFT OUTER JOIN `homework_attaches` ON `attachments`.container_type = 'HomeworkAttach' AND `attachments`.container_id = `homework_attaches`.id LEFT OUTER JOIN `homework_for_courses` ON `homework_attaches`.bid_id = `homework_for_courses`.bid_id LEFT OUTER JOIN `homework_for_courses` AS H_C ON `attachments`.container_type = 'Bid' AND `attachments`.container_id = H_C.bid_id WHERE (`homework_for_courses`.course_id = 117 OR H_C.course_id = 117 OR (`attachments`.container_type = 'Course' AND `attachments`.container_id = 117)) AND `attachments`.filename LIKE '%#{keywords}%'").reorder("created_on DESC")
   end
 
-  def find_public_attache keywords
+  def find_public_attache keywords,sort = ""
     # StoresController#search 将每条文件都查出来，再次进行判断过滤。---> resultSet.to_a.map
     # 此时内容不多速度还可，但文件增长，每条判断多则进行3-4次表连接。
     # 现在还木有思路 药丸
+    if sort == ""
+      sort =  "created_on DESC"
+    end
     resultSet = Attachment.where("attachments.container_type IS NOT NULL AND filename LIKE :like ", like: "%#{keywords}%").
-              reorder("created_on DESC")
+              reorder(sort)
   end
 
   def index

app/helpers/files_helper.rb

@@ -54,11 +54,11 @@ module FilesHelper
     s.html_safe
   end
 
-  #判断用户是否拥有课程，需用户在该课程中角色为教师且该课程属于当前学期或下一学期
-  def has_course? user
+  #判断用户是否拥有除current_course以外的课程，需用户在该课程中角色为教师且该课程属于当前学期或下一学期
+  def has_course? user,current_course
     result = false
     user.courses.each do |course|
-      if is_course_teacher(User.current,course) && course_in_current_or_next_term(course)
+      if current_course.id != course.id && is_course_teacher(User.current,course) && course_in_current_or_next_term(course)
         return true
       end
     end

app/views/files/_course_list.html.erb

@@ -2,16 +2,15 @@
 <div class="re_con_top">
   <p class="f_l  c_blue f_b f_14">共有&nbsp;<%= all_attachments.count%>&nbsp;个资源</p>
    <p class="f_r" style="color: #808080">
-    <!--<#% if @order == "asc" %>
-        按&nbsp;<#%= link_to "时间",course_files_path(course,:sort=>"created_on:desc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"created_on"} %>&nbsp;/&nbsp;
-        <#%= link_to "下载次数",course_files_path(course,:sort=>"downloads:desc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"downloads"} %>&nbsp;/&nbsp;
-        <a href="#" class="f_b c_grey">引用次数</a>&nbsp;排序
-    <#%else%>
-        按&nbsp;<#%= link_to "时间",course_files_path(course,:sort=>"created_on:asc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"created_on"} %>&nbsp;/&nbsp;
-        <#%= link_to "下载次数",course_files_path(course,:sort=>"downloads:asc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"downloads"} %>&nbsp;/&nbsp;
-        <a href="#" class="f_b c_grey">引用次数</a>&nbsp;排序
-    <#% end %>-->
-     资源列表的多样化排序将在下周上线...
+    <% if order == "asc" %>
+         按&nbsp;<%= link_to "时间",params.merge(:sort=>"created_on:desc"),:class => "f_b c_grey",:remote => @is_remote %><%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"created_on"} %>&nbsp;/&nbsp;
+         <%= link_to "下载次数",params.merge(:sort=>"downloads:desc"),:class => "f_b c_grey",:remote => @is_remote  %><%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"downloads"} %>&nbsp;<!-- /&nbsp;
+        <a href="#" class="f_b c_grey">引用次数</a>&nbsp;-->排序
+    <% else %>
+        按&nbsp;<%= link_to "时间",params.merge(:sort=>"created_on:asc"),:class => "f_b c_grey" ,:remote => @is_remote %><%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"created_on"} %>&nbsp;/&nbsp;
+        <%= link_to "下载次数",params.merge(:sort=>"downloads:asc"),:class => "f_b c_grey",:remote => @is_remote  %><%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"downloads"} %>&nbsp;<!-- /&nbsp;
+        <a href="#" class="f_b c_grey">引用次数</a>&nbsp;-->排序
+    <% end %>
   </p>
 </div>
 <div class="cl"></div>
@@ -21,7 +20,7 @@
         <%= link_to_attachment file, :download => true,:text => truncate(file.filename,length: 35, omission: '...'), :title => file.filename+"\n"+file.description.to_s, :style => "overflow: hidden; white-space: nowrap;text-overflow: ellipsis;",:class => "c_dblue f_14 f_b f_l" %>
         <% if User.current.logged? %>
           <% if is_course_teacher(User.current,@course) && file.author_id == User.current.id %>
-            <%= link_to("选入我的其他课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current) %>
+            <%= link_to("选入我的其他课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current,@course) %>
 
             <% if delete_allowed && file.container_id == @course.id && file.container_type == "Course"  %>
               <span id="is_public_<%= file.id %>">
@@ -31,7 +30,7 @@
               <!--  <#%= link_to (file.is_public? ? "公开":"私有"),"javascript:void(0)",:class=>"f_l re_open" %> -->
             <% end %>
           <% else %>
-           <%= link_to("选入我的课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current) %>
+           <%= link_to("选入我的课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current,@course) %>
           <% end %>
         <% else %>
         <% end %>

app/views/files/search.js.erb

@@ -1 +1 @@
-$("#course_list").html("<%= escape_javascript(render :partial => 'course_list',:locals => {course: @course,all_attachments: @result,sort:"create_on",order:"",curse_attachments:@searched_attach})%>");
+$("#course_list").html("<%= escape_javascript(render :partial => 'course_list',:locals => {course: @course,all_attachments: @result,sort:@sort,order:@order,curse_attachments:@searched_attach})%>");