Class: Utopia::Content

Inherits:
Object
  • Object
show all
Defined in:
lib/utopia/content.rb,
lib/utopia/content/tag.rb,
lib/utopia/content/link.rb,
lib/utopia/content/node.rb,
lib/utopia/content/links.rb,
lib/utopia/content/processor.rb

Defined Under Namespace

Classes: Link, Links, Node, Processor, Tag, Transaction, UnbalancedTagError

Constant Summary collapse

XNODE_EXTENSION = 
'.xnode'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ Content

Returns a new instance of Content.



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# File 'lib/utopia/content.rb', line 31

def initialize(app, options = {})
  @app = app

  @root = File.expand_path(options[:root] || Utopia::default_root)

  @templates = options[:cache_templates] ? {} : nil

  @tags = options.fetch(:tags, {})
end

Instance Attribute Details

#passthrough ⇒ Object (readonly)

Returns the value of attribute passthrough.



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# File 'lib/utopia/content.rb', line 42

def passthrough
  @passthrough
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/utopia/content.rb', line 41

def root
  @root
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/utopia/content.rb', line 105

def call(env)
  request = Rack::Request.new(env)
  path = Path.create(request.path_info)
  
  # Check if the request is to a non-specific index. This only works for requests with a given name:
  basename = path.basename
  directory_path = File.join(@root, path.dirname.components, basename.name)

  # If the request for /foo/bar{extensions} is actually a directory, rewrite it to /foo/bar/index{extensions}:
  if File.directory? directory_path
    index_path = [basename.name, basename.rename("index")]
    
    return [307, {"Location" => path.dirname.join(index_path).to_s}, []]
  end

  locale = env[Localization::CURRENT_LOCALE_KEY]
  if link = Links.for(@root, path, locale)
    if node = lookup_node(link.path)
      response = Rack::Response.new
      
      attributes = nil
      
      if request.respond_to?(:controller)
        attributes = request.controller
      end
      
      node.process!(request, response, (attributes || {}).to_hash)
      
      return response.finish
    end
  end
  
  return @app.call(env)
end

#fetch_xml(path) ⇒ Object 



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# File 'lib/utopia/content.rb', line 44

def fetch_xml(path)
  if @templates
    @templates.fetch(path) do |key|
      @templates[key] = Trenni::Template.load(path)
    end
  else
    Trenni::Template.load(path)
  end
end

#lookup_node(request_path) ⇒ Object

The request_path is an absolute uri path, e.g. /foo/bar. If an xnode file exists on disk for this exact path, it is instantiated, otherwise nil.



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# File 'lib/utopia/content.rb', line 92

def lookup_node(request_path)
  name = request_path.last
  name_xnode = name.to_s + XNODE_EXTENSION

  node_path = File.join(@root, request_path.dirname.components, name_xnode)

  if File.exist? node_path
    return Node.new(self, request_path.dirname + name, request_path, node_path)
  end

  return nil
end

#lookup_tag(name, parent_path) ⇒ Object

Look up a named tag such as <entry />



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# File 'lib/utopia/content.rb', line 55

def lookup_tag(name, parent_path)
  if @tags.key? name
    return @tags[name]
  end
  
  if String === name && name.index("/")
    name = Path.create(name)
  end
  
  if Path === name
    name = parent_path + name
    name_path = name.components.dup
    name_path[-1] += XNODE_EXTENSION
  else
    name_path = name + XNODE_EXTENSION
  end

  parent_path.ascend do |dir|
    tag_path = File.join(root, dir.components, name_path)

    if File.exist? tag_path
      return Node.new(self, dir + name, parent_path + name, tag_path)
    end

    if String === name_path
      tag_path = File.join(root, dir.components, "_" + name_path)

      if File.exist? tag_path
        return Node.new(self, dir + name, parent_path + name, tag_path)
      end
    end
  end
  
  return nil
end