Makes a path relative. This is very useful for templates. For example, you normally include a stylesheet in a template. If you specify the filename of the stylesheet directly, the reference to the stylesheet in the output file of a page file that is not in the same directory as the template would be invalid.
By using the relocatable tag you ensure that the path stays valid.
Return the relativized path for the path provided in the tag definition.
# File lib/webgen/tag/relocatable.rb, line 17 def call(tag, body, context) path = param('tag.relocatable.path') result = '' begin result = (Webgen::Node.url(path, false).absolute? ? path : resolve_path(path, context)) rescue URI::InvalidURIError => e raise Webgen::RenderError.new("Error while parsing path '#{path}': #{e.message}", self.class.name, context.dest_node, context.ref_node) end result end
Resolve the path path using the reference node and return the correct relative path from the destination node.
# File lib/webgen/tag/relocatable.rb, line 35 def resolve_path(path, context) dest_node = context.ref_node.resolve(path, context.dest_node.lang) if dest_node context.dest_node.node_info[:used_meta_info_nodes] << dest_node.alcn context.dest_node.route_to(dest_node) else log(:error) { "Could not resolve path '#{path}' in <#{context.ref_node}>" } context.dest_node.flag(:dirty) '' end end
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