Class: RSSFeed

Inherits:
Object
  • Object
show all
Defined in:
lib/argh_ss/rss_feed.rb

Constant Summary collapse

DEFAULT_OPTIONS = 
[:title, :link, :content, :published]

Class Method Summary collapse

Class Method Details

.feed(url) ⇒ Object 



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# File 'lib/argh_ss/rss_feed.rb', line 40

def self.feed(url)
  {}.tap do |result|
    open(url) do |rss|
      begin
        feed = RSS::Parser.parse(rss)
        case feed.feed_type
        when 'rss'
          feed.items.each { |item| result[item.title] = item.link }
        when 'atom'
          feed.items.each { |item| result[item.title.content] = item.link.content }
        end
      rescue 
        next
      end
    end
  end
end

.options_feed(url, *args) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/argh_ss/rss_feed.rb', line 5

def self.options_feed(url, *args)
  raise ArgumentError, "Incorrect options" unless args & DEFAULT_OPTIONS == args
  args = DEFAULT_OPTIONS if args.empty?

  [].tap do |result|
    open(url) do |rss|
      begin
        feed = RSS::Parser.parse(rss)
        case feed.feed_type
        when 'rss'
          feed.items.each do |item|
            hash = {}
            args.each do |content|
              hash[content] = item.send(rss_hash[content])
            end
            result << hash
          end
        when 'atom'
          feed.entries.each do |entry|
            hash = {}
            args.each do |content|
              args_array = atom_hash[content]
              hash[content] = entry.send(args_array[0]).send(args_array[1])
            end
            result << hash
          end
        end
      rescue
        next
      end
    end
  end

end