orbit_4_2_upgrade/app/controllers/upgrade_controller.rb

class UpgradeController < ApplicationController
	def index
		data = nil
		case params[:module]
		when "announcement"
			data = get_announcements
		else
			data = {"success" => false, "msg" => "Module not found."}
		end
		render :json => data.to_json
	end

	private 

	def get_announcements
		ma = ModuleApp.find_by_key("announcement")
		
		categories = ma.categories.collect do |c|
			{
				"title" => c.title_translations,
				"disable" => c.disable
			}
		end

		tags = ma.tags.collect do |t|
			{
				"name" => t.name_translations,
				"is_default" => t.is_default
			}
		end

		bulletins = Bulletin.all.collect do |b|
			image = request.protocol + request.host_with_port + b.image.url if !b.image.nil? && b.image.to_s != "sign-in-logo.png"
			links = b.bulletin_links.collect do |bl|
				{
					"title" => bl.title_translations,
					"url" => bl.url
				}
			end
			files = b.bulletin_files.collect do |bf|
				file = request.protocol + request.host_with_port + bf.file.url rescue nil
				{
					"title" => bf.title_translations,
					"description" => bf.description_translations,
					"file" => file
				}
			end

			ts = b.tags.collect do |t|
				{
					"name" => t.name_translations
				}
			end
			text = {"en" => "", "zh_tw" => ""}
			text["en"] = smart_convertor(b.text_translations["en"])
			text["zh_tw"] = smart_convertor(b.text_translations["zh_tw"])

			{
				"id" => b.id.to_s,
				"title" => b.title_translations,
				"subtitle" => b.subtitle_translations,
				"text" => text,
				"public" => b.public,
				"postdate" => b.postdate,
				"deadline" => b.deadline,
				"email_sent" => b.email_sent,
				"email_sentdate" => b.email_sentdate,
				"other_mailaddress" => b.other_mailaddress,
				"category" => b.category.title_translations,
				"tags" => ts,
				"image" => image,
				"links" => links,
				"files" => files
			}
		end

		return {"announcements" => bulletins, "categories" => categories, "tags" => tags, "success" => true}
	end

	def smart_convertor(text)
		html_string = text
		links = html_string.scan(/img.*?src="(.*?)"/i)
		links.each do |link|
			l = link.first
			new_link = nil
			if l.starts_with?("/")
				new_link = request.protocol + request.host_with_port + l
			elsif l.starts_with?("..")
				l1 = l.gsub("../","")
				new_link = request.protocol + request.host_with_port + "/" + l1
			end
			html_string = html_string.sub(l,new_link) if !new_link.nil?
		end
		return html_string
	end
end