Module: Hyperfeed::ResourceBuilder

Included in:
Client
Defined in:
lib/hyperfeed/resource_builder.rb

Instance Method Summary collapse

Instance Method Details

#build_results(feed) ⇒ Object 



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# File 'lib/hyperfeed/resource_builder.rb', line 62

def build_results(feed)
  results = []
  feed.content.xpath("//item").each do |item|
    id = generate_id(item)
    results << collect_fields(item)
  end
  results
end

#collect_fields(item) ⇒ Object 



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# File 'lib/hyperfeed/resource_builder.rb', line 49

def collect_fields(item)
  resource = {:id => generate_id(item)}
  item.children.reject{ |x| x.name == "text" }.each do |node|
    if node.name == "enclosure"
      resource[:enclosure] ||= []
      resource[:enclosure] << get_media(node)
    else
      resource[node.name.downcase.to_sym] = node.inner_text.strip
    end
  end
  resource
end

#generate_id(item) ⇒ Object 



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# File 'lib/hyperfeed/resource_builder.rb', line 44

def generate_id(item)
  link = (item.xpath("link") || item.xpath("guid")).inner_text
  Digest::MD5.hexdigest(link)
end

#get_media(item) ⇒ Object 



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# File 'lib/hyperfeed/resource_builder.rb', line 14

def get_media(item)
  media = {
    :url => item.attr("url").strip,
    :type => item.attr("type").strip,
  }
  item.children.reject{ |x| x.name == "text" }.each do |node|
    media[node.name.to_sym] = node.inner_text.strip
  end
  media
end

#get_resource(feed, id) ⇒ Object 



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# File 'lib/hyperfeed/resource_builder.rb', line 6

def get_resource(feed, id)
  item = feed.content.xpath("//item").find { |i| generate_id(i) == id }

  return nil unless item

  collect_fields(item).extend(Methodize)
end

#retrieve_resources_list(feed, options = {}) ⇒ Object 



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# File 'lib/hyperfeed/resource_builder.rb', line 25

def retrieve_resources_list(feed, options={})
  total = feed.content.xpath("//item").size

  per_page = (options[:per_page] || 10).to_i
  page =  (options[:page] || 1).to_i

  results = build_results(feed).each_slice(per_page).to_a

  total_pages = results.size
  results = results[page-1]

  resource = {:per_page => per_page,
              :current_page => page,
              :total_pages => total_pages,
              :total_results => total,
              :result => results
  }.extend(Methodize)
end