Contents

module Crags
  module Searcher
    include Fetch

    def location_doc
      fetch_doc("http://geo.craigslist.org/iso/us")
    end

    def location_links
      location_doc.search("#list a")
    end

    def locations
      location_links.collect{|link| link["href"] }
    end

    def categories
      doc = fetch_doc("http://sfbay.craigslist.org/")
      links = doc.search("table[@summary=\"for sale\"] a")
      categories = {}
      links.each do |link|
        categories[link.inner_html] = link["href"]
      end
      categories
    end

    def search(keyword, category = 'sss', &block)
      locations.collect do |loc|
        sleep(1 + rand(3))
        search_location(keyword, loc, category, &block)
      end.flatten
    end

    def items(doc)
      doc.search("item")
    end

    def search_location(keyword, loc, category = 'sss', &block)
      doc = fetch_doc("#{loc}search/#{category}?query=#{keyword}&format=rss")
      items(doc).collect do |item|
        link = create_link(item)
        yield link if block_given?
        link
      end
    end

    def create_link(item)
      link = item["rdf:about"]
      title = item.at("title").inner_text
      "<a href=\"#{link}\">#{title}</a>"
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
gotascii-crags-1.0.2	lib/crags/searcher.rb