class Feed include MongoMapper::Document key :title, String, :default => "[New feed - hasn't been fetched yet]" key :feed_url, String # The URL of the RSS feed, not the website that owns it key :url, String # The URL of website. Called "link" in RSS 2.0 key :description, String key :guid, String # Atom id or RSS guid key :generator, String key :last_fetched, Time, :default => nil timestamps! many :posts, :dependent => :destroy validates :title, :presence => true validates_format_of :feed_url, :with => URI::regexp(%w(http https)), :message => "must be a valid URL" after_create :get # Fetch and parse feed contents from web def self.get_all Feed.all.each { |f| f.get } end def get puts "Fetching feed: #{@url}" Feedzirra::Feed.add_common_feed_entry_element('georss:point', :as => :point) Feedzirra::Feed.add_common_feed_element('generator', :as => :generator) feed = Feedzirra::Feed.fetch_and_parse(@feed_url) self.set( :title => feed.title, :url => feed.url, :description => feed.description, :generator => feed.generator, :last_fetched => Time.now ) feed.entries.each do |e| latlng = e.point.split(' ') attrs = { :title => e.title, :url => e.url, :author => e.author, :summary => e.summary, :content => e.content, :published => e.published, :guid => e.id, :loc => { :lng => latlng[1].to_f, :lat => latlng[0].to_f } } if Post.where(:url => e.url).size == 0 self.posts << Post.create(attrs) else Post.set({:url => e.url}, attrs) end end end end