Class: Webgen::SourceHandler::Metainfo

Inherits:
Object
  • Object
show all
Includes:
Base, WebsiteAccess
Defined in:
lib/webgen/sourcehandler/metainfo.rb

Overview

Handles meta information files which provide meta information for other files.

Constant Summary collapse

CKEY = 
[:metainfo, :nodes]

Instance Method Summary collapse

Methods included from WebsiteAccess

included, website

Methods included from Base

#content, #node_exists?, #output_path, #page_from_path, #parent_node

Methods included from Base::OutputPathHelpers

#standard_output_path

Methods included from Loggable

#log, #puts

Constructor Details

#initialize ⇒ Metainfo

Upon creation the object registers itself as listener for some node hooks.



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# File 'lib/webgen/sourcehandler/metainfo.rb', line 17

def initialize
  website.blackboard.add_listener(:node_meta_info_changed?, method(:node_meta_info_changed?))
  website.blackboard.add_listener(:before_node_created, method(:before_node_created))
  website.blackboard.add_listener(:before_node_deleted, method(:before_node_deleted))
  website.blackboard.add_listener(:after_node_created, method(:after_node_created))
  self.nodes ||= []
end

Instance Method Details

#create_node(path) ⇒ Object

Create a meta info node from path.



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# File 'lib/webgen/sourcehandler/metainfo.rb', line 26

def create_node(path)
  page = page_from_path(path)
  super(path) do |node|
    [[:mi_paths, 'paths'], [:mi_alcn, 'alcn']].each do |mi_key, block_name|
      node.node_info[mi_key] = {}
      if page.blocks.has_key?(block_name) && (data = YAML::load(page.blocks[block_name].content))
        data.each do |key, value|
          key = Webgen::Path.make_absolute(path.parent_path, key)
          node.node_info[mi_key][key] = value
        end
      end
    end

    mark_all_matched_dirty(node, :no_old_data)

    website.cache.permanent[[:sh_metainfo_node_mi, node.alcn]] = {
      :mi_paths => node.node_info[:mi_paths],
      :mi_alcn => node.node_info[:mi_alcn]
    }

    self.nodes << node unless self.nodes.include?(node)
    self.nodes = self.nodes.sort_by {|n| n.alcn}
  end
end

#nodes ⇒ Object

:nodoc:



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# File 'lib/webgen/sourcehandler/metainfo.rb', line 51

def nodes #:nodoc:
  website.cache.permanent[CKEY]
end

#nodes=(val) ⇒ Object

:nodoc:



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# File 'lib/webgen/sourcehandler/metainfo.rb', line 55

def nodes=(val) #:nodoc:
  website.cache.permanent[CKEY] = val
end