Class: ActionDispatch::Routing::RouteSet

Inherits:
Object
  • Object
show all
Defined in:
lib/action_dispatch/routing/route_set.rb

Overview

:nodoc:

Defined Under Namespace

Modules: MountedHelpers Classes: Dispatcher, Generator, NamedRouteCollection

Constant Summary collapse

PARAMETERS_KEY =
'action_dispatch.request.path_parameters'
RESERVED_OPTIONS =
[:host, :protocol, :port, :subdomain, :domain, :tld_length,
:trailing_slash, :anchor, :params, :only_path, :script_name]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(request_class = ActionDispatch::Request) ⇒ RouteSet

Returns a new instance of RouteSet


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# File 'lib/action_dispatch/routing/route_set.rb', line 230

def initialize(request_class = ActionDispatch::Request)
  self.named_routes = NamedRouteCollection.new
  self.resources_path_names = self.class.default_resources_path_names.dup
  self.default_url_options = {}

  self.request_class = request_class
  @valid_conditions = {}

  request_class.public_instance_methods.each { |m|
    @valid_conditions[m.to_sym] = true
  }
  @valid_conditions[:controller] = true
  @valid_conditions[:action] = true

  self.valid_conditions.delete(:id)

  @append                     = []
  @prepend                    = []
  @disable_clear_and_finalize = false
  @finalized                  = false

  @set    = Journey::Routes.new
  @router = Journey::Router.new(@set, {
    :parameters_key => PARAMETERS_KEY,
    :request_class  => request_class})
  @formatter = Journey::Formatter.new @set
end

Instance Attribute Details

#default_scopeObject

Returns the value of attribute default_scope


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# File 'lib/action_dispatch/routing/route_set.rb', line 220

def default_scope
  @default_scope
end

#default_url_optionsObject

Returns the value of attribute default_url_options


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# File 'lib/action_dispatch/routing/route_set.rb', line 222

def default_url_options
  @default_url_options
end

#disable_clear_and_finalizeObject

Returns the value of attribute disable_clear_and_finalize


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# File 'lib/action_dispatch/routing/route_set.rb', line 221

def disable_clear_and_finalize
  @disable_clear_and_finalize
end

#formatterObject

Returns the value of attribute formatter


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# File 'lib/action_dispatch/routing/route_set.rb', line 220

def formatter
  @formatter
end

#named_routesObject

Returns the value of attribute named_routes


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# File 'lib/action_dispatch/routing/route_set.rb', line 220

def named_routes
  @named_routes
end

#request_classObject

Returns the value of attribute request_class


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# File 'lib/action_dispatch/routing/route_set.rb', line 222

def request_class
  @request_class
end

#resources_path_namesObject

Returns the value of attribute resources_path_names


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# File 'lib/action_dispatch/routing/route_set.rb', line 221

def resources_path_names
  @resources_path_names
end

#routerObject

Returns the value of attribute router


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# File 'lib/action_dispatch/routing/route_set.rb', line 220

def router
  @router
end

#setObject Also known as: routes

Returns the value of attribute set


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# File 'lib/action_dispatch/routing/route_set.rb', line 220

def set
  @set
end

#valid_conditionsObject

Returns the value of attribute valid_conditions


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# File 'lib/action_dispatch/routing/route_set.rb', line 222

def valid_conditions
  @valid_conditions
end

Class Method Details

.default_resources_path_namesObject


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# File 'lib/action_dispatch/routing/route_set.rb', line 226

def self.default_resources_path_names
  { :new => 'new', :edit => 'edit' }
end

Instance Method Details

#_generate_prefix(options = {}) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 568

def _generate_prefix(options = {})
  nil
end

#add_route(app, conditions = {}, requirements = {}, defaults = {}, name = nil, anchor = true) ⇒ Object

Raises:

  • (ArgumentError)

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# File 'lib/action_dispatch/routing/route_set.rb', line 363

def add_route(app, conditions = {}, requirements = {}, defaults = {}, name = nil, anchor = true)
  raise ArgumentError, "Invalid route name: '#{name}'" unless name.blank? || name.to_s.match(/^[_a-z]\w*$/i)

  path = build_path(conditions.delete(:path_info), requirements, SEPARATORS, anchor)
  conditions = build_conditions(conditions, valid_conditions, path.names.map { |x| x.to_sym })

  route = @set.add_route(app, path, conditions, defaults, name)
  named_routes[name] = route if name
  route
end

#append(&block) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 265

def append(&block)
  @append << block
end

#call(env) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 599

def call(env)
  finalize!
  @router.call(env)
end

#clear!Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 292

def clear!
  @finalized = false
  @url_helpers = nil
  named_routes.clear
  set.clear
  formatter.clear
  @prepend.each { |blk| eval_block(blk) }
end

#define_mounted_helper(name) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 313

def define_mounted_helper(name)
  return if MountedHelpers.method_defined?(name)

  routes = self
  MountedHelpers.class_eval do
    define_method "_#{name}" do
      RoutesProxy.new(routes, self._routes_context)
    end
  end

  MountedHelpers.class_eval <<-RUBY
    def #{name}
      @#{name} ||= _#{name}
    end
  RUBY
end

#draw(&block) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 258

def draw(&block)
  clear! unless @disable_clear_and_finalize
  eval_block(block)
  finalize! unless @disable_clear_and_finalize
  nil
end

#empty?Boolean

Returns:

  • (Boolean)

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# File 'lib/action_dispatch/routing/route_set.rb', line 359

def empty?
  routes.empty?
end

#eval_block(block) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 273

def eval_block(block)
  if block.arity == 1
    raise "You are using the old router DSL which has been removed in Rails 3.1. " <<
      "Please check how to update your routes file at: http://www.engineyard.com/blog/2010/the-lowdown-on-routes-in-rails-3/"
  end
  mapper = Mapper.new(self)
  if default_scope
    mapper.with_default_scope(default_scope, &block)
  else
    mapper.instance_exec(&block)
  end
end

#extra_keys(options, recall = {}) ⇒ Object

Generate the path indicated by the arguments, and return an array of the keys that were not used to generate it.


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# File 'lib/action_dispatch/routing/route_set.rb', line 553

def extra_keys(options, recall={})
  generate_extras(options, recall).last
end

#finalize!Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 286

def finalize!
  return if @finalized
  @append.each { |blk| eval_block(blk) }
  @finalized = true
end

#generate(options, recall = {}, extras = false) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 561

def generate(options, recall = {}, extras = false)
  Generator.new(options, recall, self, extras).generate
end

#generate_extras(options, recall = {}) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 557

def generate_extras(options, recall={})
  generate(options, recall, true)
end

#install_helpers(destinations = [ActionController::Base, ActionView::Base], regenerate_code = false) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 301

def install_helpers(destinations = [ActionController::Base, ActionView::Base], regenerate_code = false)
  Array(destinations).each { |d| d.module_eval { include Helpers } }
  named_routes.install(destinations, regenerate_code)
end

#mounted_helpersObject


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# File 'lib/action_dispatch/routing/route_set.rb', line 309

def mounted_helpers
  MountedHelpers
end

#prepend(&block) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 269

def prepend(&block)
  @prepend << block
end

#recognize_path(path, environment = {}) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 604

def recognize_path(path, environment = {})
  method = (environment[:method] || "GET").to_s.upcase
  path = Journey::Router::Utils.normalize_path(path) unless path =~ %r{://}

  begin
    env = Rack::MockRequest.env_for(path, {:method => method})
  rescue URI::InvalidURIError => e
    raise ActionController::RoutingError, e.message
  end

  req = @request_class.new(env)
  @router.recognize(req) do |route, matches, params|
    params.each do |key, value|
      if value.is_a?(String)
        value = value.dup.force_encoding(Encoding::BINARY) if value.encoding_aware?
        params[key] = URI.parser.unescape(value)
      end
    end

    dispatcher = route.app
    while dispatcher.is_a?(Mapper::Constraints) && dispatcher.matches?(env) do
      dispatcher = dispatcher.app
    end

    if dispatcher.is_a?(Dispatcher) && dispatcher.controller(params, false)
      dispatcher.prepare_params!(params)
      return params
    end
  end

  raise ActionController::RoutingError, "No route matches #{path.inspect}"
end

#url_for(options) ⇒ Object


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# File 'lib/action_dispatch/routing/route_set.rb', line 572

def url_for(options)
  finalize!
  options = (options || {}).reverse_merge!(default_url_options)

  handle_positional_args(options)

  user, password = extract_authentication(options)
  path_segments  = options.delete(:_path_segments)
  script_name    = options.delete(:script_name)

  path = (script_name.blank? ? _generate_prefix(options) : script_name.chomp('/')).to_s

  path_options = options.except(*RESERVED_OPTIONS)
  path_options = yield(path_options) if block_given?

  path_addition, params = generate(path_options, path_segments || {})
  path << path_addition
  params.merge!(options[:params] || {})

  ActionDispatch::Http::URL.url_for(options.merge!({
    :path => path,
    :params => params,
    :user => user,
    :password => password
  }))
end

#url_helpersObject


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# File 'lib/action_dispatch/routing/route_set.rb', line 330

def url_helpers
  @url_helpers ||= begin
    routes = self

    helpers = Module.new do
      extend ActiveSupport::Concern
      include UrlFor

      @_routes = routes
      class << self
        delegate :url_for, :to => '@_routes'
      end
      extend routes.named_routes.module

      # ROUTES TODO: install_helpers isn't great... can we make a module with the stuff that
      # we can include?
      # Yes plz - JP
      included do
        routes.install_helpers(self)
        singleton_class.send(:redefine_method, :_routes) { routes }
      end

      define_method(:_routes) { @_routes || routes }
    end

    helpers
  end
end