trustieforge/app/controllers/files_controller.rb

#encoding: utf-8
# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class FilesController < ApplicationController
  layout 'base_projects' #by young

  menu_item :files
  before_filter :auth_login1, :only => [:index]
  before_filter :logged_user_by_apptoken,:only => [:index]
  before_filter :find_project_by_project_id#, :except => [:getattachtype]
  before_filter :authorize, :except => [:create,:getattachtype,:quote_resource_show,:search,:searchone4reload,:search_project,:quote_resource_show_project,
                                        :search_tag_attachment,:subfield_upload_file,:search_org_subfield_tag_attachment,
                                        :search_tag_attachment,:quote_resource_show_org_subfield,:find_org_subfield_attache,
                                        :search_files_in_subfield,:upload_files_menu,:file_hidden,:republish_file,:update_file_description]

  helper :sort
  include SortHelper
  include FilesHelper
  helper :project_score
  include CoursesHelper
  include ApplicationHelper

  def show_attachments obj
    @attachments = []
    obj.each do |container|
      @attachments += container.attachments
    end
    @all_attachments = User.current.admin? ? @attachments : visable_attachemnts(@attachments)
    @limit = 10
    @feedback_count = @all_attachments.count
    @feedback_pages = Paginator.new @feedback_count, @limit, params['page']
    @offset ||= @feedback_pages.offset
    #@curse_attachments_all = @all_attachments[@offset, @limit]
    @obj_attachments = paginateHelper @all_attachments,10
  end

  def searchone4reload
    attachment = Attachment.find_by_id(params[:fileid]);
    respond_to do |format|
      format.html{render :layout => nil,:locals=>{:file=>attachment,:course=>@course}}
    end
  end

  def search
    sort = ""
    @sort = ""
    @order = ""
    @is_remote = true
    @q = params[:name].strip
    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
    # show_attachments [@course]
    begin
      q = "%#{params[:name].strip}%"
      #(redirect_to stores_url, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
      if params[:insite]
        if q == "%%"
          @result = []
          @searched_attach = paginateHelper @result,10
        else
          @result = find_public_attache q,sort
          @result = visable_attachemnts_insite @result,@course
          @searched_attach = paginateHelper @result,10
        end
      else
        @result = find_course_attache q,@course,sort
        @result = visable_attachemnts @result
        @searched_attach = paginateHelper @result,10

        @tag_list = get_course_tag_list @course
      end
    #rescue Exception => e
    #  #render 'stores'
    #  redirect_to search_course_files_url
    end
  end

  def file_hidden
    @file = Attachment.find params[:id]
    @course = Course.find params[:course_id]
    respond_to do |format|
      format.js
    end
  end

  def republish_file
    @file = Attachment.find params[:id]
    @course = Course.find params[:course_id]
    if params[:publish_time]
      unless params[:publish_time] == ""
        @file.publish_time = params[:publish_time]
      end
    end
    if @file.publish_time > Date.today
      @file.is_publish = 0
    else
      @file.is_publish = 1
    end
    @file.save
    respond_to do |format|
      format.js
    end
  end

  def search_project
    sort = ""
    @sort = ""
    @order = ""
    @is_remote = true
    @q = params[:name].strip
    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
    # show_attachments [@course]
    begin
      q = "%#{params[:name].strip}%"
      #(redirect_to stores_url, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
      if params[:insite]
        if q == "%%"
          @project_attachment_result = []
          @searched_attach = paginateHelper @project_attachment_result, 10
        else
          @project_attachment_result = find_public_attache q,sort
          @project_attachment_result = visable_attachemnts_insite  @project_attachment_result, @project
          @searched_attach = paginateHelper @project_attachment_result, 10
        end
      else
        @project_attachment_result = find_project_attache q, @project,sort
        @project_attachment_result = visable_attachemnts @project_attachment_result
        @searched_attach = paginateHelper @project_attachment_result,10
        @tag_list = get_project_tag_list @project
      end
      #rescue Exception => e
      #  #render 'stores'
      #  redirect_to search_course_files_url
    end
  end

    def search_files_in_subfield
      sort = ""
      @sort = ""
      @order = ""
      @is_remote = true
      @q = params[:name].strip
      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
      # show_attachments [@course]
      begin
        q = "%#{params[:name].strip}%"
        #(redirect_to stores_url, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
        if params[:insite]
          if q == "%%"
            @result = []
            @searched_attach = paginateHelper @result,10
          else
            @result = find_public_attache q,sort
            @result = visable_attachemnts_insite @result,@org_subfield
            @searched_attach = paginateHelper @result,10
          end
        else
          @result = find_org_subfield_attache q,@org_subfield,sort
          @result = visable_attachemnts @result
          @searched_attach = paginateHelper @result,10
          @tag_list = attachment_tag_list @result
        end
        #rescue Exception => e
        #  #render 'stores'
        #  redirect_to search_course_files_url
      end
      @page = params[:page] || 1
    end

  def find_course_attache keywords,course,sort = ""
    if sort == ""
      sort =  "created_on DESC"
    end
    if keywords != "%%"
    resultSet = Attachment.where("attachments.container_type = 'Course' And attachments.container_id = '#{course.id}' AND filename LIKE :like ", like: "%#{keywords}%").reorder(sort)
    else
      resultSet = Attachment.where("attachments.container_type = 'Course' And attachments.container_id = '#{course.id}' "). reorder(sort)
    end
    #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_org_subfield_attache keywords,org_subfield,sort = ""
    if sort == ""
      sort =  "created_on DESC"
    end
    if keywords != "%%"
      resultSet = Attachment.where("attachments.container_type = 'OrgSubfield' And attachments.container_id = '#{org_subfield.id}' AND filename LIKE :like ", like: "%#{keywords}%").
          reorder(sort)
    else
      resultSet = Attachment.where("attachments.container_type = 'OrgSubfield' And attachments.container_id = '#{org_subfield.id}' "). reorder(sort)
    end
    #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_project_attache keywords,project,sort = ""
    if sort == ""
      sort =  "created_on DESC"
    end
    if keywords != "%%"
      resultSet = Attachment.where("attachments.container_type = 'Project' And attachments.container_id = '#{project.id}' AND filename LIKE :like ", like: "%#{keywords}%").reorder(sort)
    else
      resultSet = Attachment.where("attachments.container_type = 'Project' And attachments.container_id = '#{project.id}' "). reorder(sort)
    end
   end

  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 attachments.copy_from IS NULL AND filename LIKE :like ", like: "%#{keywords}%").
              reorder(sort)
  end

  def index
    @flag = params[:flag] || false
    sort = ""
    @sort = ""
    @order = ""
    @is_remote = false
    if params[:project_id]
      # 更新资源申请消息为已读
      # ar_ids = ApplyResource.where("user_id =? and container_id =? and container_type =?", User.current.id, params[:project_id].to_i, "Project").map{|ar| ar.id}
      # cms = CourseMessage.where("course_message_type =? and user_id =? and course_message_id in (#{ar_ids.empty? ? '0': ar_ids.join(',')})", "ApplyResource", User.current.id)
      # cms.each do |cm|
      #   cm.update_column(:viewed, true)
      # end
      # over
      @page = params[:page] ? params[:page].to_i + 1 : 2
      @container_type = 0
      if params[:sort]
        params[:sort].split(",").each do |sort_type|
          order_by = sort_type.split(":")
          case order_by[0]
            when "filename"
              attribute = "filename"
            when "size"
              attribute = "filesize"
            when "attach_type"
              attribute = "attachtype"
            when "content_type"
              attribute = "created_on"
            when "field_file_dense"
              attribute = "is_public"
            when "downloads"
              attribute = "downloads"
            when "created_on"
              attribute = "created_on"
            when "quotes"
              attribute = "quotes"
            else
              attribute = "created_on"
          end
          @sort = order_by[0]
          @order = order_by[1]
          if order_by.count == 1 && attribute
            sort += "#{Attachment.table_name}.#{attribute} asc "
            if sort_type != params[:sort].split(",").last
              sort += ","
            end
          elsif order_by.count == 2 && order_by[1]
            sort += "#{Attachment.table_name}.#{attribute} #{order_by[1]} "
            if sort_type != params[:sort].split(",").last
              sort += ","
            end
          end
        end
      else
        sort = "#{Attachment.table_name}.created_on desc"
      end
      # @containers = [ Project.includes(:attachments).find(@project.id)]
      # @containers += @project.versions.includes(:attachments).all

      @containers = [ Project.includes(:attachments).reorder(sort).find(@project.id)]

      show_attachments @containers

      @tag_list = attachment_tag_list @all_attachments

      render :layout => 'base_projects'
    elsif params[:course_id]
      @container_type = 1
      @page = params[:page] ? params[:page].to_i + 1 : 2
      if params[:sort]
        params[:sort].split(",").each do |sort_type|
          order_by = sort_type.split(":")

          case order_by[0]
            when "filename"
              attribute = "filename"
            when "size"
              attribute = "filesize"
            when "attach_type"
              attribute = "attachtype"
            when "content_type"
              attribute = "created_on"
            when "field_file_dense"
              attribute = "is_public"
            when "downloads"
              attribute = "downloads"
            when "created_on"
              attribute = "created_on"
            when "quotes"
              attribute = "quotes"
            else
            attribute = "created_on"
          end
          @sort = order_by[0]
          @order = order_by[1]
          if order_by.count == 1 && attribute
            sort += "#{Attachment.table_name}.#{attribute} asc "
            if sort_type != params[:sort].split(",").last
              sort += ","
            end
          elsif order_by.count == 2 && order_by[1]
            sort += "#{Attachment.table_name}.#{attribute} #{order_by[1]} "
            if sort_type != params[:sort].split(",").last
              sort += ","
            end
          end
        end
      else
        sort = "#{Attachment.table_name}.created_on desc"
      end

      @containers = [ Course.includes(:attachments).reorder(sort).find(@course.id)]

      show_attachments @containers

      @tag_list = attachment_tag_list @all_attachments

      @left_nav_type = 5
      render :layout => 'base_courses'
    elsif params[:org_subfield_id]
      if params[:sort]
        params[:sort].split(",").each do |sort_type|
          order_by = sort_type.split(":")

          case order_by[0]
            when "filename"
              attribute = "filename"
            when "size"
              attribute = "filesize"
            when "attach_type"
              attribute = "attachtype"
            when "content_type"
              attribute = "created_on"
            when "field_file_dense"
              attribute = "is_public"
            when "downloads"
              attribute = "downloads"
            when "created_on"
              attribute = "created_on"
            when "quotes"
              attribute = "quotes"
            else
              attribute = "created_on"
          end
          @sort = order_by[0]
          @order = order_by[1]
          if order_by.count == 1 && attribute
            sort += "#{Attachment.table_name}.#{attribute} asc "
            if sort_type != params[:sort].split(",").last
              sort += ","
            end
          elsif order_by.count == 2 && order_by[1]
            sort += "#{Attachment.table_name}.#{attribute} #{order_by[1]} "
            if sort_type != params[:sort].split(",").last
              sort += ","
            end
          end
        end
      else
        sort = "#{Attachment.table_name}.created_on desc"
      end
      @container_type = 2
      @containers = [ OrgSubfield.includes(:attachments).reorder(sort).find(@org_subfield.id)]
      @organization = Organization.find(@containers.first.organization_id)
      if @organization.is_public? or User.current.admin? or User.current.member_of_org?(@organization)
        show_attachments @containers
        @tag_list = attachment_tag_list @all_attachments
        @page = params[:page] || 1
        render :layout => 'base_org'
      else
        render_403
      end
      # @subfield = params[:org_subfield_id]
    end

  end

  def quote_resource_show
    @file = Attachment.find(params[:id])
    @can_quote = attachment_candown @file
  end

  def quote_resource_show_project
    @file = Attachment.find(params[:id])
    @can_quote = attachment_candown @file
  end

  def quote_resource_show_org_subfield
    @file = Attachment.find(params[:id])
    @org_subfield = OrgSubfield.find(params[:org_subfield_id])
    @can_quote = attachment_candown @file
  end

  def new
    @versions = @project.versions.sort
    @course_tag = @project.project_type
    if @project.project_type == 1
      @left_nav_type = 5
      render :layout => 'base_courses'
    end
  end

  def create
   if params[:add_tag]
     @addTag=true
     #render :back
      tag_saveEx
      #render :text =>"success"
      respond_to do |format|
       format.js
     end
   else
     #modify by nwb
     if @project
       @addTag=false
       if params[:in_project_toolbar]
         @in_project_toolbar =  params[:in_project_toolbar]
       end
       attachments = Attachment.attach_filesex(@project, params[:attachments], params[:attachment_type])
       if !attachments.empty? && !attachments[:files].blank? && Setting.notified_events.include?('file_added')
         # 发送邮件
         Mailer.run.attachments_added(attachments[:files])
         # 生成动态
         attachments[:files].each do |file|
           ForgeActivity.create(:user_id => User.current.id, :project_id => @project.id, :forge_act_id => file.id, :forge_act_type => "Attachment")
         end
         # 更新资源总数, 根据上传的附件数累加
         @project.project_score.update_attribute(:attach_num, @project.project_score.attach_num + attachments[:files].count) unless @project.project_score.nil?
       end
       # end
       if params[:project_attachment_type] && params[:project_attachment_type].is_a?(Array)
         params[:project_attachment_type].each do |type|
           tag_name = get_project_tag_name_by_type_nmuber type
           if !attachments.empty? && attachments[:files] && tag_name != ""
             attachments[:files].each do |attachment|
               attachment.tag_list.add(tag_name)
               attachment.description = params[:description]
               attachment.save
             end
           end
         end
       else
         if params[:project_attachment_type] && params[:project_attachment_type] != "6"
           tag_name = get_project_tag_name_by_type_nmuber params[:project_attachment_type]
           if !attachments.empty? && attachments[:files] && tag_name != ""
             attachments[:files].each do |attachment|
               attachment.tag_list.add(tag_name)
               attachment.description = params[:description]
               attachment.save
             end
           end
         end
       end
       # TODO: 临时用 nyan
       sort_init 'created_on', 'desc'
       sort_update 'created_on' => "#{Attachment.table_name}.created_on",
                   'filename' => "#{Attachment.table_name}.filename",
                   'size' => "#{Attachment.table_name}.filesize",
                   'downloads' => "#{Attachment.table_name}.downloads"

       @containers = [Project.includes(:attachments).reorder("#{Attachment.table_name}.created_on DESC").find(@project.id)]
       show_attachments @containers
       @tag_list = attachment_tag_list @all_attachments
       @attachtype = 0
       @contenttype = 0
       respond_to do |format|
         format.js
         format.html {
           redirect_to project_files_url(@project)
         }
       end
     elsif @course
       @addTag=false
       if params[:in_course_toolbar]
         @in_course_toolbar =  params[:in_course_toolbar]
       end
       attachments = Attachment.attach_filesex(@course, params[:attachments], params[:attachment_type])

       if !attachments.empty? && !attachments[:files].blank? && Setting.notified_events.include?('file_added')
         Mailer.run.attachments_added(attachments[:files])
       end
       if !attachments.empty? && attachments[:files]
         attachments[:files].each do |attachment|
           if params[:publish_time]
             if params[:publish_time] == ""
               attachment.publish_time = Date.today
             else
               attachment.publish_time = params[:publish_time]
             end
           else
             attachment.publish_time = Date.today
           end
           if attachment.publish_time > Date.today
             attachment.is_publish = 0
           end
           attachment.description = params[:description]
           attachment.save
         end
       end
       if params[:course_attachment_type] && params[:course_attachment_type].is_a?(Array)
         params[:course_attachment_type].each do |type|
           tag_name = get_tag_name_by_type_number  type
           if !attachments.empty? && attachments[:files] && tag_name != ""
             attachments[:files].each do |attachment|
               attachment.tag_list.add(tag_name)
               attachment.save
             end
           end
         end
       else
         if params[:course_attachment_type] && params[:course_attachment_type] != "5"
           tag_name = get_tag_name_by_type_number  params[:course_attachment_type]
           if !attachments.empty? && attachments[:files] && tag_name != ""
             attachments[:files].each do |attachment|
               attachment.tag_list.add(tag_name)
               attachment.save
             end
           end
         end
       end
       # 更新课程英雄榜得分
       course_member_score(@course.id, attachments[:files].first.author_id, "Attachment")
       # end
       # end
       # TODO: 临时用 nyan
       sort_init 'created_on', 'desc'
       sort_update 'created_on' => "#{Attachment.table_name}.created_on",
                   'filename' => "#{Attachment.table_name}.filename",
                   'size' => "#{Attachment.table_name}.filesize",
                   'downloads' => "#{Attachment.table_name}.downloads"

       @containers = [Course.includes(:attachments).reorder("#{Attachment.table_name}.created_on DESC").find(@course.id)]

       show_attachments @containers
       @tag_list = attachment_tag_list @all_attachments

       @attachtype = 0
       @contenttype = 0

       respond_to do |format|
         format.js
         format.html {
           redirect_to course_files_url(@course)
         }
       end
     elsif @org_subfield
       @addTag=false
       attachments = Attachment.attach_filesex(@org_subfield, params[:attachments], params[:org_subfield_attachment_type])

       if params[:org_subfield_attachment_type] && params[:org_subfield_attachment_type].is_a?(Array)
         params[:org_subfield_attachment_type].each do |type|
           tag_name = get_tag_name_by_type_number  type
           if !attachments.empty? && attachments[:files] && tag_name != ""
             attachments[:files].each do |attachment|
               attachment.tag_list.add(tag_name)
               attachment.description = params[:description]
               attachment.save
             end
           end
         end
       else
         if params[:org_subfield_attachment_type] && params[:org_subfield_attachment_type] != "5"
           tag_name = get_tag_name_by_type_number  params[:org_subfield_attachment_type]
           if !attachments.empty? && attachments[:files] && tag_name != ""
             attachments[:files].each do |attachment|
               attachment.tag_list.add(tag_name)
               attachment.description = params[:description]
               attachment.save
             end
           end
         end
       end

       # TODO: 临时用 nyan
       sort_init 'created_on', 'desc'
       sort_update 'created_on' => "#{Attachment.table_name}.created_on",
                   'filename' => "#{Attachment.table_name}.filename",
                   'size' => "#{Attachment.table_name}.filesize",
                   'downloads' => "#{Attachment.table_name}.downloads"

       @containers = [OrgSubfield.includes(:attachments).reorder("#{Attachment.table_name}.created_on DESC").find(@org_subfield.id)]

       show_attachments @containers
       @tag_list = attachment_tag_list @all_attachments
       @attachtype = 0
       @contenttype = 0

       respond_to do |format|
         format.js
         # format.html {
         #   redirect_to org_subfield_files_url(@org_subfield)
         # }
       end
     # 组织添加附件，为了修改图片
     elsif params[:organization_id]
       @organization = Organization.find(params[:organization_id])
       @addTag=false
       # atttchment_type = 0为logo 1为banner
       if params[:logo]
         attachments = Attachment.attach_filesex(@organization, params[:attachments], false)
       else
         attachments = Attachment.attach_filesex(@organization, params[:attachments], true)
       end
       # TODO: 临时用 nyan
       sort_init 'created_on', 'desc'
       sort_update 'created_on' => "#{Attachment.table_name}.created_on",
                   'filename' => "#{Attachment.table_name}.filename",
                   'size' => "#{Attachment.table_name}.filesize",
                   'downloads' => "#{Attachment.table_name}.downloads"

       @containers = [Organization.includes(:attachments).reorder("#{Attachment.table_name}.created_on DESC").find(@organization.id)]

       show_attachments @containers
       @tag_list = attachment_tag_list @all_attachments
       @attachtype = 0
       @contenttype = 0

       respond_to do |format|
         format.js
         # format.html {
         #   redirect_to org_subfield_files_url(@org_subfield)
         # }
       end
     end
   end
  end

  def get_project_tag_name_by_type_nmuber type
    case type
      when "1"
        tag_name = "软件版本"
      when "2"
        tag_name = "文档"
      when "3"
        tag_name = "代码"
      when "4"
        tag_name = "媒体"
      when "5"
        tag_name = "论文"
      when "6"
        tag_name = "其它"
      else
        tag_name = ""
    end
  end

  def get_tag_name_by_type_number type
    case type
      when "1"
        tag_name = l(:label_courseware)
      when "2"
        tag_name = l(:label_software)
      when "3"
        tag_name = l(:label_media)
      when "4"
        tag_name = l(:label_code)
      when "6"
        tag_name = "论文"
      else
        tag_name = ""
    end
  end

  def tag_saveEx
    @tags = params[:tag_name][:name]
    @obj_id = params[:object_id]
    @obj_flag = params[:object_flag]

    case @obj_flag
      when '1' then
        @obj = User.find_by_id(@obj_id)
      when '2' then
        @obj = Project.find_by_id(@obj_id)
      when '3' then
        @obj = Issue.find_by_id(@obj_id)
      when '4' then
        @obj = Bid.find_by_id(@obj_id)
      when '5' then
        @obj = Forum.find_by_id(@obj_id)
      when '6'
        @obj = Attachment.find_by_id(@obj_id)
      when '7' then
        @obj = Contest.find_by_id(@obj_id)
      when '8'
        @obj = OpenSourceProject.find_by_id(@obj_id)
      when '9'
        @obj = Course.find_by_id(@obj_id)
      else
        @obj = nil
    end
    unless @obj.nil?
      @obj.tag_list.add(@tags.split(","))
    else
      return
    end
    if @obj.save
      ## 执行成功的操作。
    else
      #捕获异常
    end
   end

  # 返回指定资源类型的资源列表
  # added by nwb
  def getattachtype
    sort_init 'created_on', 'desc' 
    sort_update   'created_on' => "#{Attachment.table_name}.created_on", 
                  'filename' => "#{Attachment.table_name}.filename",
                  'size' => "#{Attachment.table_name}.filesize",
                  'downloads' => "#{Attachment.table_name}.downloads"
    sort=''

    if params[:sort]
      params[:sort].split(",").each do |sort_type|
        order_by = sort_type.split(":")

        case order_by[0]
          when "filename"
            attribute = "filename"
          when "size"
            attribute = "filesize"
          when "attach_type"
            attribute = "attachtype"
          when "content_type"
            attribute = "created_on"
          when "field_file_dense"
            attribute = "is_public"
          when "downloads"
            attribute = "downloads"
          when "created_on"
            attribute = "created_on"
        end

        if order_by.count == 1
          sort += "#{Attachment.table_name}.#{attribute} asc "
        elsif order_by.count == 2
          sort += "#{Attachment.table_name}.#{attribute} #{order_by[1]} "
        end
        if sort_type != params[:sort].split(",").last
          sort += ","
        end
      end
    end

   if @project
     @isproject = true
     @containers = [ Project.includes(:attachments).reorder("#{Attachment.table_name}.created_on DESC").find(@project.id)]
     @containers += @project.versions.includes(:attachments).reorder(sort).all
     show_attachments @containers
     @attachtype = params[:type].to_i
     @contenttype = params[:contentType].to_s
      respond_to do |format|
        format.js
       format.html {
         render :layout => 'base_projects'
       }
      end

   elsif @course
      @isproject = false
      @containers = [ Course.includes(:attachments).reorder(sort).find(@course.id)]
      show_attachments @containers
      @attachtype = params[:type].to_i
      @contenttype = params[:contentType].to_s
     # render layout:  'base_courses'
      @left_nav_type = 5
      respond_to do |format|
        format.js
        format.html {
          render :layout => 'base_courses'
        }
      end
   else
     show_attachments @containers
     @attachtype = params[:type].to_i
     @contenttype = params[:contentType].to_s

     respond_to do |format|
        format.js
        format.html
     end
   end
  end

    #查找指定TAG的按条件过滤的资源列表，只有课程内搜索有此功能
  def search_tag_attachment
    @q,@tag_name,@order = params[:q],params[:tag_name]
    @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

    q = "%#{@q.strip}%"
    if @project
      @result = find_project_attache q, @project,sort
    else
      @result = find_course_attache q,@course,sort
    end
    @result = visable_attachemnts @result
    if params[:other]
      if @project
        @result = @result.select{|attachment| !attachment.tag_list.include?('软件版本') && !attachment.tag_list.include?('文档') && !attachment.tag_list.include?('代码') && !attachment.tag_list.include?('媒体') && !attachment.tag_list.include?('论文')  }
      else
        @result = @result.select{|attachment|
          !attachment.tag_list.include?('课件') &&
              !attachment.tag_list.include?('软件') &&
              !attachment.tag_list.include?('媒体') &&
              !attachment.tag_list.include?('代码') &&
              !attachment.tag_list.include?('论文')  }
      end
    else
      @result = @result.select{|attachment| attachment.tag_list.include?(@tag_name)} unless @tag_name.blank?
    end
    @searched_attach = paginateHelper @result,10
    if @project
      @tag_list = get_project_tag_list @project
      @result_search_project = @result
    else
      @tag_list = get_course_tag_list @course
    end
    respond_to do |format|
      format.js
      # format.html
    end
  end

  #搜索资源栏目的指定TAG的资源列表
  def search_org_subfield_tag_attachment
    @q,@tag_name,@order = params[:q],params[:tag_name]
    @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

    q = "%#{@q.strip}%"
    @result = find_org_subfield_attache q,@org_subfield,sort
    @result = visable_attachemnts @result
    if params[:other]
      @result = @result.select{|attachment|
        attachment.tag_list.index{|tag|tag != '软件' and tag != '媒体' and tag != '代码'}.present?
      }
    else
      @result = @result.select{|attachment| attachment.tag_list.include?(@tag_name)} unless @tag_name.blank?
    end
    @searched_attach = paginateHelper @result,10
    @tag_list = get_org_subfield_tag_list @org_subfield

    respond_to do |format|
      format.js
      # format.html
    end
  end

  def subfield_upload_file
    @org_subfield = OrgSubfield.find(params[:org_subfield_id])
  end

  def upload_files_menu

  end
  def update_file_description
    @attachment = Attachment.find(params[:id])
    @attachment.description = params[:description]
    @attachment.save
  end
end