class Feedalizer::Feed

Constants

IDENTIFIER

Attributes

page[R]

Public Class Methods

new(url, &block) click to toggle source
# File lib/feedalizer.rb, line 12
def initialize(url, &block)
  @page = grab_page(url)
  @rss = RSS::Maker::RSS20.new

  feed.generator = IDENTIFIER
  feed.link = url
  feed.description = "Scraped from #{url}"

  instance_eval(&block) if block
end

Public Instance Methods

debug!() click to toggle source
# File lib/feedalizer.rb, line 48
def debug!
  @rss.items.each do |item|
    STDERR.puts [item.title, item.date, item.link].join('; ')
  end
end
feed() click to toggle source
# File lib/feedalizer.rb, line 23
def feed
  @rss.channel
end
grab_page(url) click to toggle source
# File lib/feedalizer.rb, line 36
def grab_page(url)
  open(url) { |io| Oga.parse_html(io) }
end
output() click to toggle source
# File lib/feedalizer.rb, line 40
def output
  @rss.to_feed.to_s
end
output!(target = STDOUT) click to toggle source
# File lib/feedalizer.rb, line 44
def output!(target = STDOUT)
  target << output
end
scrape_items(query, limit = 15) { |rss_item, html_element| ... } click to toggle source
# File lib/feedalizer.rb, line 27
def scrape_items(query, limit = 15)
  elements = @page.xpath(query)

  elements.first(limit).each do |html_element|
    rss_item = @rss.items.new_item
    yield rss_item, html_element
  end
end