socialforge/app/controllers/stores_controller.rb

# encoding: utf-8
# Trustie - education management software
# Copyright (C) 2013-2014
class StoresController < ApplicationController
  layout 'base_stores'

  def search
    name = params[:name] ||= ''
    redirect_to stores_path, :notice => l(:field_course_un) if name.blank?
    # 按文件名搜索
    result = Attachment.where("attachments.container_type IS NOT NULL AND filename LIKE '%" + name + "%' ").
              reorder("created_on DESC")
    result = result.to_a
    result.map { |res|
      if(res.container.nil? || 
        (res.container.class.to_s.eql?("Project") && res.container.is_public == false) ||
        (res.container.class.to_s.eql?("HomeworkAttach") && res.container.bid.reward_type == 3) ||
        false
        )
        result.delete(res)
      end
    }
    @searched_attach = paginateHelper result
  end

  LIMIT = 12 unless const_defined?(:LIMIT)
  def index
  	@projects_attach = Attachment.includes(:project).where("projects.project_type=? AND projects.is_public = ?", 0, 1).
  						reorder("#{Attachment.table_name}.downloads DESC").
  						limit(LIMIT)

    @courses_attach = Attachment.includes(:project).where("projects.project_type=? AND projects.is_public = ?", 1, 1).
     					reorder("#{Attachment.table_name}.downloads DESC").
     					limit(LIMIT)
    @homeworks_attach = Attachment.where("container_type = 'HomeworkAttach'").
    					reorder("downloads DESC").
    					limit(LIMIT)
    @memos_attach = Attachment.where("container_type = 'Memo'").
    					reorder("downloads DESC").
    					limit(LIMIT)
    @attach_array = Array.new
    @attach_array.push(@projects_attach, @courses_attach, @homeworks_attach, @memos_attach)
    @str_arr = [ l(:label_project_deposit), 
               l(:label_course_practice), 
               l(:label_contest_innovate),
               l(:label_forum) ]
  end
  
  private

  def project_classification project_type=0
  	pro_attach   = Attachment.joins("LEFT JOIN projects ON attachments.container_id = projects.id").
  					where("projects.project_type=#{project_type}").
  					reorder("downloads DESC").
  					limit(LIMIT)
    doc_attach   = join_tools_project Document, project_type
    issue_attach = join_tools_project Issue, project_type
    mess_attach  = []
    news_attach  = join_tools_project News"news", project_type
    vers_attach  = join_tools_project Version"versions", project_type
    wiki_attach  = []

  	tmp = pro_attach+doc_attach+issue_attach+mess_attach+news_attach+vers_attach+wiki_attach
  	tmp.sort { |a, b| b.downloads <=> a.downloads }
  end
  def join_tools_project tableName, project_type=0
  	Attachment.joins(str_join_table(tableName)).
  		where("projects.project_type=#{project_type}").
  		reorder('downloads DESC').
  		limit(LIMIT)
  end

  def str_join_table tableClass
  	str = "LEFT JOIN #{tableClass.table_name} ON attachments.container_id = #{tableClass.table_name}.id 
  		LEFT JOIN projects ON #{tableClass.table_name}.project_id = projects.id"
  	str
  end
end