Class | Webgen::SourceHandler::Feed |
In: |
lib/webgen/sourcehandler/feed.rb
|
Parent: | Object |
Source handler for creating atom and/or rss feeds.
MANDATORY_INFOS | = | %W[site_url author entries] | The mandatory keys that need to be set in a feed file. |
Return the rendered feed represented by node.
# File lib/webgen/sourcehandler/feed.rb, line 44 44: def content(node) 45: website.cache[[:sourcehandler_feed, node.node_info[:src]]] = feed_entries(node).map {|n| n.alcn} 46: 47: block_name = node.node_info[:feed_type] + '_template' 48: if node.node_info[:feed].blocks.has_key?(block_name) 49: node.node_info[:feed].blocks[block_name].render(Webgen::Context.new(:chain => [node])).content 50: else 51: chain = [node.resolve("/templates/#{node.node_info[:feed_type]}_feed.template"), node] 52: node.node_info[:used_nodes] << chain.first.alcn 53: chain.first.node_info[:page].blocks['content'].render(Webgen::Context.new(:chain => chain)).content 54: end 55: end
Create atom and/or rss feed files from path.
# File lib/webgen/sourcehandler/feed.rb, line 19 19: def create_node(path) 20: page = page_from_path(path) 21: path.meta_info['link'] ||= path.parent_path 22: 23: if MANDATORY_INFOS.any? {|t| path.meta_info[t].nil?} 24: raise Webgen::NodeCreationError.new("At least one of #{MANDATORY_INFOS.join('/')} is missing", 25: self.class.name, path) 26: end 27: 28: create_feed_node = lambda do |type| 29: path.ext = type 30: super(path) do |node| 31: node.node_info[:feed] = page 32: node.node_info[:feed_type] = type 33: end 34: end 35: 36: nodes = [] 37: nodes << create_feed_node['atom'] if path.meta_info['atom'] 38: nodes << create_feed_node['rss'] if path.meta_info['rss'] 39: 40: nodes 41: end
Return the entries for the feed node.
# File lib/webgen/sourcehandler/feed.rb, line 58 58: def feed_entries(node) 59: nr_items = (node['number_of_entries'].to_i == 0 ? 10 : node['number_of_entries'].to_i) 60: patterns = [node['entries']].flatten.map {|pat| Webgen::Path.make_absolute(node.parent.alcn, pat)} 61: 62: node.tree.node_access[:alcn].values. 63: select {|node| patterns.any? {|pat| node =~ pat} && node.node_info[:page]}. 64: sort {|a,b| a['modified_at'] <=> b['modified_at']}.reverse[0, nr_items] 65: end
Return the feed link URL for the feed node.
# File lib/webgen/sourcehandler/feed.rb, line 68 68: def feed_link(node) 69: Webgen::Node.url(File.join(node['site_url'], node.tree[node['link']].path), false) 70: end
Check if the any of the nodes used by this feed node have changed and then mark the node as dirty.
# File lib/webgen/sourcehandler/feed.rb, line 83 83: def node_changed?(node) 84: return if node.node_info[:processor] != self.class.name 85: entries = node.feed_entries 86: node.flag(:dirty) if entries.map {|n| n.alcn } != website.cache[[:sourcehandler_feed, node.node_info[:src]]] || 87: entries.any? {|n| n.changed?} 88: end