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unfreeze rails

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Reinier Balt 2010-09-27 21:00:18 +02:00
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commit ee751a5ced
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197
vendor/rails/actionpack/lib/action_controller/routing/builder.rb vendored
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module ActionController
module Routing
class RouteBuilder #:nodoc:
attr_reader :separators, :optional_separators
attr_reader :separator_regexp, :nonseparator_regexp, :interval_regexp
def initialize
@separators = Routing::SEPARATORS
@optional_separators = %w( / )
@separator_regexp = /[#{Regexp.escape(separators.join)}]/
@nonseparator_regexp = /\A([^#{Regexp.escape(separators.join)}]+)/
@interval_regexp = /(.*?)(#{separator_regexp}|$)/
end
# Accepts a "route path" (a string defining a route), and returns the array
# of segments that corresponds to it. Note that the segment array is only
# partially initialized--the defaults and requirements, for instance, need
# to be set separately, via the +assign_route_options+ method, and the
# <tt>optional?</tt> method for each segment will not be reliable until after
# +assign_route_options+ is called, as well.
def segments_for_route_path(path)
rest, segments = path, []
until rest.empty?
segment, rest = segment_for(rest)
segments << segment
end
segments
end
# A factory method that returns a new segment instance appropriate for the
# format of the given string.
def segment_for(string)
segment =
case string
when /\A\.(:format)?\//
OptionalFormatSegment.new
when /\A:(\w+)/
key = $1.to_sym
key == :controller ? ControllerSegment.new(key) : DynamicSegment.new(key)
when /\A\*(\w+)/
PathSegment.new($1.to_sym, :optional => true)
when /\A\?(.*?)\?/
StaticSegment.new($1, :optional => true)
when nonseparator_regexp
StaticSegment.new($1)
when separator_regexp
DividerSegment.new($&, :optional => optional_separators.include?($&))
end
[segment, $~.post_match]
end
# Split the given hash of options into requirement and default hashes. The
# segments are passed alongside in order to distinguish between default values
# and requirements.
def divide_route_options(segments, options)
options = options.except(:path_prefix, :name_prefix)
if options[:namespace]
options[:controller] = "#{options.delete(:namespace).sub(/\/$/, '')}/#{options[:controller]}"
end
requirements = (options.delete(:requirements) || {}).dup
defaults = (options.delete(:defaults) || {}).dup
conditions = (options.delete(:conditions) || {}).dup
validate_route_conditions(conditions)
path_keys = segments.collect { |segment| segment.key if segment.respond_to?(:key) }.compact
options.each do |key, value|
hash = (path_keys.include?(key) && ! value.is_a?(Regexp)) ? defaults : requirements
hash[key] = value
end
[defaults, requirements, conditions]
end
# Takes a hash of defaults and a hash of requirements, and assigns them to
# the segments. Any unused requirements (which do not correspond to a segment)
# are returned as a hash.
def assign_route_options(segments, defaults, requirements)
route_requirements = {} # Requirements that do not belong to a segment
segment_named = Proc.new do |key|
segments.detect { |segment| segment.key == key if segment.respond_to?(:key) }
end
requirements.each do |key, requirement|
segment = segment_named[key]
if segment
raise TypeError, "#{key}: requirements on a path segment must be regular expressions" unless requirement.is_a?(Regexp)
if requirement.source =~ %r{\A(\\A|\^)|(\\Z|\\z|\$)\Z}
raise ArgumentError, "Regexp anchor characters are not allowed in routing requirements: #{requirement.inspect}"
end
if requirement.multiline?
raise ArgumentError, "Regexp multiline option not allowed in routing requirements: #{requirement.inspect}"
end
segment.regexp = requirement
else
route_requirements[key] = requirement
end
end
defaults.each do |key, default|
segment = segment_named[key]
raise ArgumentError, "#{key}: No matching segment exists; cannot assign default" unless segment
segment.is_optional = true
segment.default = default.to_param if default
end
assign_default_route_options(segments)
ensure_required_segments(segments)
route_requirements
end
# Assign default options, such as 'index' as a default for <tt>:action</tt>. This
# method must be run *after* user supplied requirements and defaults have
# been applied to the segments.
def assign_default_route_options(segments)
segments.each do |segment|
next unless segment.is_a? DynamicSegment
case segment.key
when :action
if segment.regexp.nil? || segment.regexp.match('index').to_s == 'index'
segment.default ||= 'index'
segment.is_optional = true
end
when :id
if segment.default.nil? && segment.regexp.nil? || segment.regexp =~ ''
segment.is_optional = true
end
end
end
end
# Makes sure that there are no optional segments that precede a required
# segment. If any are found that precede a required segment, they are
# made required.
def ensure_required_segments(segments)
allow_optional = true
segments.reverse_each do |segment|
allow_optional &&= segment.optional?
if !allow_optional && segment.optional?
unless segment.optionality_implied?
warn "Route segment \"#{segment.to_s}\" cannot be optional because it precedes a required segment. This segment will be required."
end
segment.is_optional = false
elsif allow_optional && segment.respond_to?(:default) && segment.default
# if a segment has a default, then it is optional
segment.is_optional = true
end
end
end
# Construct and return a route with the given path and options.
def build(path, options)
# Wrap the path with slashes
path = "/#{path}" unless path[0] == ?/
path = "#{path}/" unless path[-1] == ?/
prefix = options[:path_prefix].to_s.gsub(/^\//,'')
path = "/#{prefix}#{path}" unless prefix.blank?
segments = segments_for_route_path(path)
defaults, requirements, conditions = divide_route_options(segments, options)
requirements = assign_route_options(segments, defaults, requirements)
# TODO: Segments should be frozen on initialize
segments.each { |segment| segment.freeze }
route = Route.new(segments, requirements, conditions)
if !route.significant_keys.include?(:controller)
raise ArgumentError, "Illegal route: the :controller must be specified!"
end
route.freeze
end
private
def validate_route_conditions(conditions)
if method = conditions[:method]
[method].flatten.each do |m|
if m == :head
raise ArgumentError, "HTTP method HEAD is invalid in route conditions. Rails processes HEAD requests the same as GETs, returning just the response headers"
end
unless HTTP_METHODS.include?(m.to_sym)
raise ArgumentError, "Invalid HTTP method specified in route conditions: #{conditions.inspect}"
end
end
end
end
end
end
end

130
vendor/rails/actionpack/lib/action_controller/routing/optimisations.rb vendored
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module ActionController
module Routing
# Much of the slow performance from routes comes from the
# complexity of expiry, <tt>:requirements</tt> matching, defaults providing
# and figuring out which url pattern to use. With named routes
# we can avoid the expense of finding the right route. So if
# they've provided the right number of arguments, and have no
# <tt>:requirements</tt>, we can just build up a string and return it.
#
# To support building optimisations for other common cases, the
# generation code is separated into several classes
module Optimisation
def generate_optimisation_block(route, kind)
return "" unless route.optimise?
OPTIMISERS.inject("") do |memo, klazz|
memo << klazz.new(route, kind).source_code
memo
end
end
class Optimiser
attr_reader :route, :kind
GLOBAL_GUARD_CONDITIONS = [
"(!defined?(default_url_options) || default_url_options.blank?)",
"(!defined?(controller.default_url_options) || controller.default_url_options.blank?)",
"defined?(request)",
"request"
]
def initialize(route, kind)
@route = route
@kind = kind
end
def guard_conditions
["false"]
end
def generation_code
'nil'
end
def source_code
if applicable?
guard_condition = (GLOBAL_GUARD_CONDITIONS + guard_conditions).join(" && ")
"return #{generation_code} if #{guard_condition}\n"
else
"\n"
end
end
# Temporarily disabled <tt>:url</tt> optimisation pending proper solution to
# Issues around request.host etc.
def applicable?
true
end
end
# Given a route
#
# map.person '/people/:id'
#
# If the user calls <tt>person_url(@person)</tt>, we can simply
# return a string like "/people/#{@person.to_param}"
# rather than triggering the expensive logic in +url_for+.
class PositionalArguments < Optimiser
def guard_conditions
number_of_arguments = route.required_segment_keys.size
# if they're using foo_url(:id=>2) it's one
# argument, but we don't want to generate /foos/id2
if number_of_arguments == 1
["args.size == 1", "!args.first.is_a?(Hash)"]
else
["args.size == #{number_of_arguments}"]
end
end
def generation_code
elements = []
idx = 0
if kind == :url
elements << '#{request.protocol}'
elements << '#{request.host_with_port}'
end
elements << '#{ActionController::Base.relative_url_root if ActionController::Base.relative_url_root}'
# The last entry in <tt>route.segments</tt> appears to *always* be a
# 'divider segment' for '/' but we have assertions to ensure that
# we don't include the trailing slashes, so skip them.
(route.segments.size == 1 ? route.segments : route.segments[0..-2]).each do |segment|
if segment.is_a?(DynamicSegment)
elements << segment.interpolation_chunk("args[#{idx}].to_param")
idx += 1
else
elements << segment.interpolation_chunk
end
end
%("#{elements * ''}")
end
end
# This case is mostly the same as the positional arguments case
# above, but it supports additional query parameters as the last
# argument
class PositionalArgumentsWithAdditionalParams < PositionalArguments
def guard_conditions
["args.size == #{route.segment_keys.size + 1}"] +
UrlRewriter::RESERVED_OPTIONS.collect{ |key| "!args.last.has_key?(:#{key})" }
end
# This case uses almost the same code as positional arguments,
# but add a question mark and args.last.to_query on the end,
# unless the last arg is empty
def generation_code
super.insert(-2, '#{\'?\' + args.last.to_query unless args.last.empty?}')
end
# To avoid generating "http://localhost/?host=foo.example.com" we
# can't use this optimisation on routes without any segments
def applicable?
super && route.segment_keys.size > 0
end
end
OPTIMISERS = [PositionalArguments, PositionalArgumentsWithAdditionalParams]
end
end
end

167
vendor/rails/actionpack/lib/action_controller/routing/recognition_optimisation.rb vendored
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module ActionController
module Routing
# BEFORE: 0.191446860631307 ms/url
# AFTER: 0.029847304022858 ms/url
# Speed up: 6.4 times
#
# Route recognition is slow due to one-by-one iterating over
# a whole routeset (each map.resources generates at least 14 routes)
# and matching weird regexps on each step.
#
# We optimize this by skipping all URI segments that 100% sure can't
# be matched, moving deeper in a tree of routes (where node == segment)
# until first possible match is accured. In such case, we start walking
# a flat list of routes, matching them with accurate matcher.
# So, first step: search a segment tree for the first relevant index.
# Second step: iterate routes starting with that index.
#
# How tree is walked? We can do a recursive tests, but it's smarter:
# We just create a tree of if-s and elsif-s matching segments.
#
# We have segments of 3 flavors:
# 1) nil (no segment, route finished)
# 2) const-dot-dynamic (like "/posts.:xml", "/preview.:size.jpg")
# 3) const (like "/posts", "/comments")
# 4) dynamic ("/:id", "file.:size.:extension")
#
# We split incoming string into segments and iterate over them.
# When segment is nil, we drop immediately, on a current node index.
# When segment is equal to some const, we step into branch.
# If none constants matched, we step into 'dynamic' branch (it's a last).
# If we can't match anything, we drop to last index on a level.
#
# Note: we maintain the original routes order, so we finish building
# steps on a first dynamic segment.
#
#
# Example. Given the routes:
# 0 /posts/
# 1 /posts/:id
# 2 /posts/:id/comments
# 3 /posts/blah
# 4 /users/
# 5 /users/:id
# 6 /users/:id/profile
#
# request_uri = /users/123
#
# There will be only 4 iterations:
# 1) segm test for /posts prefix, skip all /posts/* routes
# 2) segm test for /users/
# 3) segm test for /users/:id
# (jump to list index = 5)
# 4) full test for /users/:id => here we are!
class RouteSet
def recognize_path(path, environment={})
result = recognize_optimized(path, environment) and return result
# Route was not recognized. Try to find out why (maybe wrong verb).
allows = HTTP_METHODS.select { |verb| routes.find { |r| r.recognize(path, environment.merge(:method => verb)) } }
if environment[:method] && !HTTP_METHODS.include?(environment[:method])
raise NotImplemented.new(*allows)
elsif !allows.empty?
raise MethodNotAllowed.new(*allows)
else
raise RoutingError, "No route matches #{path.inspect} with #{environment.inspect}"
end
end
def segment_tree(routes)
tree = [0]
i = -1
routes.each do |route|
i += 1
# not fast, but runs only once
segments = to_plain_segments(route.segments.inject("") { |str,s| str << s.to_s })
node = tree
segments.each do |seg|
seg = :dynamic if seg && seg[0] == ?:
node << [seg, [i]] if node.empty? || node[node.size - 1][0] != seg
node = node[node.size - 1][1]
end
end
tree
end
def generate_code(list, padding=' ', level = 0)
# a digit
return padding + "#{list[0]}\n" if list.size == 1 && !(Array === list[0])
body = padding + "(seg = segments[#{level}]; \n"
i = 0
was_nil = false
list.each do |item|
if Array === item
i += 1
start = (i == 1)
tag, sub = item
if tag == :dynamic
body += padding + "#{start ? 'if' : 'elsif'} true\n"
body += generate_code(sub, padding + " ", level + 1)
break
elsif tag == nil && !was_nil
was_nil = true
body += padding + "#{start ? 'if' : 'elsif'} seg.nil?\n"
body += generate_code(sub, padding + " ", level + 1)
else
body += padding + "#{start ? 'if' : 'elsif'} seg == '#{tag}'\n"
body += generate_code(sub, padding + " ", level + 1)
end
end
end
body += padding + "else\n"
body += padding + " #{list[0]}\n"
body += padding + "end)\n"
body
end
# this must be really fast
def to_plain_segments(str)
str = str.dup
str.sub!(/^\/+/,'')
str.sub!(/\/+$/,'')
segments = str.split(/\.[^\/]+\/+|\/+|\.[^\/]+\Z/) # cut off ".format" also
segments << nil
segments
end
private
def write_recognize_optimized!
tree = segment_tree(routes)
body = generate_code(tree)
remove_recognize_optimized!
instance_eval %{
def recognize_optimized(path, env)
segments = to_plain_segments(path)
index = #{body}
return nil unless index
while index < routes.size
result = routes[index].recognize(path, env) and return result
index += 1
end
nil
end
}, '(recognize_optimized)', 1
end
def clear_recognize_optimized!
remove_recognize_optimized!
write_recognize_optimized!
end
def remove_recognize_optimized!
if respond_to?(:recognize_optimized)
class << self
remove_method :recognize_optimized
end
end
end
end
end
end

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vendor/rails/actionpack/lib/action_controller/routing/route.rb vendored
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module ActionController
module Routing
class Route #:nodoc:
attr_accessor :segments, :requirements, :conditions, :optimise
def initialize(segments = [], requirements = {}, conditions = {})
@segments = segments
@requirements = requirements
@conditions = conditions
if !significant_keys.include?(:action) && !requirements[:action]
@requirements[:action] = "index"
@significant_keys << :action
end
# Routes cannot use the current string interpolation method
# if there are user-supplied <tt>:requirements</tt> as the interpolation
# code won't raise RoutingErrors when generating
has_requirements = @segments.detect { |segment| segment.respond_to?(:regexp) && segment.regexp }
if has_requirements || @requirements.keys.to_set != Routing::ALLOWED_REQUIREMENTS_FOR_OPTIMISATION
@optimise = false
else
@optimise = true
end
end
# Indicates whether the routes should be optimised with the string interpolation
# version of the named routes methods.
def optimise?
@optimise && ActionController::Base::optimise_named_routes
end
def segment_keys
segments.collect do |segment|
segment.key if segment.respond_to? :key
end.compact
end
def required_segment_keys
required_segments = segments.select {|seg| (!seg.optional? && !seg.is_a?(DividerSegment)) || seg.is_a?(PathSegment) }
required_segments.collect { |seg| seg.key if seg.respond_to?(:key)}.compact
end
# Build a query string from the keys of the given hash. If +only_keys+
# is given (as an array), only the keys indicated will be used to build
# the query string. The query string will correctly build array parameter
# values.
def build_query_string(hash, only_keys = nil)
elements = []
(only_keys || hash.keys).each do |key|
if value = hash[key]
elements << value.to_query(key)
end
end
elements.empty? ? '' : "?#{elements.sort * '&'}"
end
# A route's parameter shell contains parameter values that are not in the
# route's path, but should be placed in the recognized hash.
#
# For example, +{:controller => 'pages', :action => 'show'} is the shell for the route:
#
# map.connect '/page/:id', :controller => 'pages', :action => 'show', :id => /\d+/
#
def parameter_shell
@parameter_shell ||= returning({}) do |shell|
requirements.each do |key, requirement|
shell[key] = requirement unless requirement.is_a? Regexp
end
end
end
# Return an array containing all the keys that are used in this route. This
# includes keys that appear inside the path, and keys that have requirements
# placed upon them.
def significant_keys
@significant_keys ||= returning([]) do |sk|
segments.each { |segment| sk << segment.key if segment.respond_to? :key }
sk.concat requirements.keys
sk.uniq!
end
end
# Return a hash of key/value pairs representing the keys in the route that
# have defaults, or which are specified by non-regexp requirements.
def defaults
@defaults ||= returning({}) do |hash|
segments.each do |segment|
next unless segment.respond_to? :default
hash[segment.key] = segment.default unless segment.default.nil?
end
requirements.each do |key,req|
next if Regexp === req || req.nil?
hash[key] = req
end
end
end
def matches_controller_and_action?(controller, action)
prepare_matching!
(@controller_requirement.nil? || @controller_requirement === controller) &&
(@action_requirement.nil? || @action_requirement === action)
end
def to_s
@to_s ||= begin
segs = segments.inject("") { |str,s| str << s.to_s }
"%-6s %-40s %s" % [(conditions[:method] || :any).to_s.upcase, segs, requirements.inspect]
end
end
# TODO: Route should be prepared and frozen on initialize
def freeze
unless frozen?
write_generation!
write_recognition!
prepare_matching!
parameter_shell
significant_keys
defaults
to_s
end
super
end
def generate(options, hash, expire_on = {})
path, hash = generate_raw(options, hash, expire_on)
append_query_string(path, hash, extra_keys(options))
end
def generate_extras(options, hash, expire_on = {})
path, hash = generate_raw(options, hash, expire_on)
[path, extra_keys(options)]
end
private
def requirement_for(key)
return requirements[key] if requirements.key? key
segments.each do |segment|
return segment.regexp if segment.respond_to?(:key) && segment.key == key
end
nil
end
# Write and compile a +generate+ method for this Route.
def write_generation!
# Build the main body of the generation
body = "expired = false\n#{generation_extraction}\n#{generation_structure}"
# If we have conditions that must be tested first, nest the body inside an if
body = "if #{generation_requirements}\n#{body}\nend" if generation_requirements
args = "options, hash, expire_on = {}"
# Nest the body inside of a def block, and then compile it.
raw_method = method_decl = "def generate_raw(#{args})\npath = begin\n#{body}\nend\n[path, hash]\nend"
instance_eval method_decl, "generated code (#{__FILE__}:#{__LINE__})"
# expire_on.keys == recall.keys; in other words, the keys in the expire_on hash
# are the same as the keys that were recalled from the previous request. Thus,
# we can use the expire_on.keys to determine which keys ought to be used to build
# the query string. (Never use keys from the recalled request when building the
# query string.)
raw_method
end
# Build several lines of code that extract values from the options hash. If any
# of the values are missing or rejected then a return will be executed.
def generation_extraction
segments.collect do |segment|
segment.extraction_code
end.compact * "\n"
end
# Produce a condition expression that will check the requirements of this route
# upon generation.
def generation_requirements
requirement_conditions = requirements.collect do |key, req|
if req.is_a? Regexp
value_regexp = Regexp.new "\\A#{req.to_s}\\Z"
"hash[:#{key}] && #{value_regexp.inspect} =~ options[:#{key}]"
else
"hash[:#{key}] == #{req.inspect}"
end
end
requirement_conditions * ' && ' unless requirement_conditions.empty?
end
def generation_structure
segments.last.string_structure segments[0..-2]
end
# Write and compile a +recognize+ method for this Route.
def write_recognition!
# Create an if structure to extract the params from a match if it occurs.
body = "params = parameter_shell.dup\n#{recognition_extraction * "\n"}\nparams"
body = "if #{recognition_conditions.join(" && ")}\n#{body}\nend"
# Build the method declaration and compile it
method_decl = "def recognize(path, env = {})\n#{body}\nend"
instance_eval method_decl, "generated code (#{__FILE__}:#{__LINE__})"
method_decl
end
# Plugins may override this method to add other conditions, like checks on
# host, subdomain, and so forth. Note that changes here only affect route
# recognition, not generation.
def recognition_conditions
result = ["(match = #{Regexp.new(recognition_pattern).inspect}.match(path))"]
result << "[conditions[:method]].flatten.include?(env[:method])" if conditions[:method]
result
end
# Build the regular expression pattern that will match this route.
def recognition_pattern(wrap = true)
pattern = ''
segments.reverse_each do |segment|
pattern = segment.build_pattern pattern
end
wrap ? ("\\A" + pattern + "\\Z") : pattern
end
# Write the code to extract the parameters from a matched route.
def recognition_extraction
next_capture = 1
extraction = segments.collect do |segment|
x = segment.match_extraction(next_capture)
next_capture += segment.number_of_captures
x
end
extraction.compact
end
# Generate the query string with any extra keys in the hash and append
# it to the given path, returning the new path.
def append_query_string(path, hash, query_keys = nil)
return nil unless path
query_keys ||= extra_keys(hash)
"#{path}#{build_query_string(hash, query_keys)}"
end
# Determine which keys in the given hash are "extra". Extra keys are
# those that were not used to generate a particular route. The extra
# keys also do not include those recalled from the prior request, nor
# do they include any keys that were implied in the route (like a
# <tt>:controller</tt> that is required, but not explicitly used in the
# text of the route.)
def extra_keys(hash, recall = {})
(hash || {}).keys.map { |k| k.to_sym } - (recall || {}).keys - significant_keys
end
def prepare_matching!
unless defined? @matching_prepared
@controller_requirement = requirement_for(:controller)
@action_requirement = requirement_for(:action)
@matching_prepared = true
end
end
end
end
end

502
vendor/rails/actionpack/lib/action_controller/routing/route_set.rb vendored
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@ -1,502 +0,0 @@
module ActionController
module Routing
class RouteSet #:nodoc:
# Mapper instances are used to build routes. The object passed to the draw
# block in config/routes.rb is a Mapper instance.
#
# Mapper instances have relatively few instance methods, in order to avoid
# clashes with named routes.
class Mapper #:doc:
include ActionController::Resources
def initialize(set) #:nodoc:
@set = set
end
# Create an unnamed route with the provided +path+ and +options+. See
# ActionController::Routing for an introduction to routes.
def connect(path, options = {})
@set.add_route(path, options)
end
# Creates a named route called "root" for matching the root level request.
def root(options = {})
if options.is_a?(Symbol)
if source_route = @set.named_routes.routes[options]
options = source_route.defaults.merge({ :conditions => source_route.conditions })
end
end
named_route("root", '', options)
end
def named_route(name, path, options = {}) #:nodoc:
@set.add_named_route(name, path, options)
end
# Enables the use of resources in a module by setting the name_prefix, path_prefix, and namespace for the model.
# Example:
#
# map.namespace(:admin) do |admin|
# admin.resources :products,
# :has_many => [ :tags, :images, :variants ]
# end
#
# This will create +admin_products_url+ pointing to "admin/products", which will look for an Admin::ProductsController.
# It'll also create +admin_product_tags_url+ pointing to "admin/products/#{product_id}/tags", which will look for
# Admin::TagsController.
def namespace(name, options = {}, &block)
if options[:namespace]
with_options({:path_prefix => "#{options.delete(:path_prefix)}/#{name}", :name_prefix => "#{options.delete(:name_prefix)}#{name}_", :namespace => "#{options.delete(:namespace)}#{name}/" }.merge(options), &block)
else
with_options({:path_prefix => name, :name_prefix => "#{name}_", :namespace => "#{name}/" }.merge(options), &block)
end
end
def method_missing(route_name, *args, &proc) #:nodoc:
super unless args.length >= 1 && proc.nil?
@set.add_named_route(route_name, *args)
end
end
# A NamedRouteCollection instance is a collection of named routes, and also
# maintains an anonymous module that can be used to install helpers for the
# named routes.
class NamedRouteCollection #:nodoc:
include Enumerable
include ActionController::Routing::Optimisation
attr_reader :routes, :helpers
def initialize
clear!
end
def clear!
@routes = {}
@helpers = []
@module ||= Module.new
@module.instance_methods.each do |selector|
@module.class_eval { remove_method selector }
end
end
def add(name, route)
routes[name.to_sym] = route
define_named_route_methods(name, route)
end
def get(name)
routes[name.to_sym]
end
alias []= add
alias [] get
alias clear clear!
def each
routes.each { |name, route| yield name, route }
self
end
def names
routes.keys
end
def length
routes.length
end
def reset!
old_routes = routes.dup
clear!
old_routes.each do |name, route|
add(name, route)
end
end
def install(destinations = [ActionController::Base, ActionView::Base], regenerate = false)
reset! if regenerate
Array(destinations).each do |dest|
dest.__send__(:include, @module)
end
end
private
def url_helper_name(name, kind = :url)
:"#{name}_#{kind}"
end
def hash_access_name(name, kind = :url)
:"hash_for_#{name}_#{kind}"
end
def define_named_route_methods(name, route)
{:url => {:only_path => false}, :path => {:only_path => true}}.each do |kind, opts|
hash = route.defaults.merge(:use_route => name).merge(opts)
define_hash_access route, name, kind, hash
define_url_helper route, name, kind, hash
end
end
def named_helper_module_eval(code, *args)
@module.module_eval(code, *args)
end
def define_hash_access(route, name, kind, options)
selector = hash_access_name(name, kind)
named_helper_module_eval <<-end_eval # We use module_eval to avoid leaks
def #{selector}(options = nil) # def hash_for_users_url(options = nil)
options ? #{options.inspect}.merge(options) : #{options.inspect} # options ? {:only_path=>false}.merge(options) : {:only_path=>false}
end # end
protected :#{selector} # protected :hash_for_users_url
end_eval
helpers << selector
end
def define_url_helper(route, name, kind, options)
selector = url_helper_name(name, kind)
# The segment keys used for positional paramters
hash_access_method = hash_access_name(name, kind)
# allow ordered parameters to be associated with corresponding
# dynamic segments, so you can do
#
# foo_url(bar, baz, bang)
#
# instead of
#
# foo_url(:bar => bar, :baz => baz, :bang => bang)
#
# Also allow options hash, so you can do
#
# foo_url(bar, baz, bang, :sort_by => 'baz')
#
named_helper_module_eval <<-end_eval # We use module_eval to avoid leaks
def #{selector}(*args) # def users_url(*args)
#
#{generate_optimisation_block(route, kind)} # #{generate_optimisation_block(route, kind)}
#
opts = if args.empty? || Hash === args.first # opts = if args.empty? || Hash === args.first
args.first || {} # args.first || {}
else # else
options = args.extract_options! # options = args.extract_options!
args = args.zip(#{route.segment_keys.inspect}).inject({}) do |h, (v, k)| # args = args.zip([]).inject({}) do |h, (v, k)|
h[k] = v # h[k] = v
h # h
end # end
options.merge(args) # options.merge(args)
end # end
#
url_for(#{hash_access_method}(opts)) # url_for(hash_for_users_url(opts))
#
end # end
#Add an alias to support the now deprecated formatted_* URL. # #Add an alias to support the now deprecated formatted_* URL.
def formatted_#{selector}(*args) # def formatted_users_url(*args)
ActiveSupport::Deprecation.warn( # ActiveSupport::Deprecation.warn(
"formatted_#{selector}() has been deprecated. " + # "formatted_users_url() has been deprecated. " +
"Please pass format to the standard " + # "Please pass format to the standard " +
"#{selector} method instead.", caller) # "users_url method instead.", caller)
#{selector}(*args) # users_url(*args)
end # end
protected :#{selector} # protected :users_url
end_eval
helpers << selector
end
end
attr_accessor :routes, :named_routes, :configuration_files
def initialize
self.configuration_files = []
self.routes = []
self.named_routes = NamedRouteCollection.new
clear_recognize_optimized!
end
# Subclasses and plugins may override this method to specify a different
# RouteBuilder instance, so that other route DSL's can be created.
def builder
@builder ||= RouteBuilder.new
end
def draw
yield Mapper.new(self)
install_helpers
end
def clear!
routes.clear
named_routes.clear
@combined_regexp = nil
@routes_by_controller = nil
# This will force routing/recognition_optimization.rb
# to refresh optimisations.
clear_recognize_optimized!
end
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
def empty?
routes.empty?
end
def add_configuration_file(path)
self.configuration_files << path
end
# Deprecated accessor
def configuration_file=(path)
add_configuration_file(path)
end
# Deprecated accessor
def configuration_file
configuration_files
end
def load!
Routing.use_controllers!(nil) # Clear the controller cache so we may discover new ones
clear!
load_routes!
end
# reload! will always force a reload whereas load checks the timestamp first
alias reload! load!
def reload
if configuration_files.any? && @routes_last_modified
if routes_changed_at == @routes_last_modified
return # routes didn't change, don't reload
else
@routes_last_modified = routes_changed_at
end
end
load!
end
def load_routes!
if configuration_files.any?
configuration_files.each { |config| load(config) }
@routes_last_modified = routes_changed_at
else
add_route ":controller/:action/:id"
end
end
def routes_changed_at
routes_changed_at = nil
configuration_files.each do |config|
config_changed_at = File.stat(config).mtime
if routes_changed_at.nil? || config_changed_at > routes_changed_at
routes_changed_at = config_changed_at
end
end
routes_changed_at
end
def add_route(path, options = {})
options.each { |k, v| options[k] = v.to_s if [:controller, :action].include?(k) && v.is_a?(Symbol) }
route = builder.build(path, options)
routes << route
route
end
def add_named_route(name, path, options = {})
# TODO - is options EVER used?
name = options[:name_prefix] + name.to_s if options[:name_prefix]
named_routes[name.to_sym] = add_route(path, options)
end
def options_as_params(options)
# If an explicit :controller was given, always make :action explicit
# too, so that action expiry works as expected for things like
#
# generate({:controller => 'content'}, {:controller => 'content', :action => 'show'})
#
# (the above is from the unit tests). In the above case, because the
# controller was explicitly given, but no action, the action is implied to
# be "index", not the recalled action of "show".
#
# great fun, eh?
options_as_params = options.clone
options_as_params[:action] ||= 'index' if options[:controller]
options_as_params[:action] = options_as_params[:action].to_s if options_as_params[:action]
options_as_params
end
def build_expiry(options, recall)
recall.inject({}) do |expiry, (key, recalled_value)|
expiry[key] = (options.key?(key) && options[key].to_param != recalled_value.to_param)
expiry
end
end
# Generate the path indicated by the arguments, and return an array of
# the keys that were not used to generate it.
def extra_keys(options, recall={})
generate_extras(options, recall).last
end
def generate_extras(options, recall={})
generate(options, recall, :generate_extras)
end
def generate(options, recall = {}, method=:generate)
named_route_name = options.delete(:use_route)
generate_all = options.delete(:generate_all)
if named_route_name
named_route = named_routes[named_route_name]
options = named_route.parameter_shell.merge(options)
end
options = options_as_params(options)
expire_on = build_expiry(options, recall)
if options[:controller]
options[:controller] = options[:controller].to_s
end
# if the controller has changed, make sure it changes relative to the
# current controller module, if any. In other words, if we're currently
# on admin/get, and the new controller is 'set', the new controller
# should really be admin/set.
if !named_route && expire_on[:controller] && options[:controller] && options[:controller][0] != ?/
old_parts = recall[:controller].split('/')
new_parts = options[:controller].split('/')
parts = old_parts[0..-(new_parts.length + 1)] + new_parts
options[:controller] = parts.join('/')
end
# drop the leading '/' on the controller name
options[:controller] = options[:controller][1..-1] if options[:controller] && options[:controller][0] == ?/
merged = recall.merge(options)
if named_route
path = named_route.generate(options, merged, expire_on)
if path.nil?
raise_named_route_error(options, named_route, named_route_name)
else
return path
end
else
merged[:action] ||= 'index'
options[:action] ||= 'index'
controller = merged[:controller]
action = merged[:action]
raise RoutingError, "Need controller and action!" unless controller && action
if generate_all
# Used by caching to expire all paths for a resource
return routes.collect do |route|
route.__send__(method, options, merged, expire_on)
end.compact
end
# don't use the recalled keys when determining which routes to check
future_routes, deprecated_routes = routes_by_controller[controller][action][options.reject {|k,v| !v}.keys.sort_by { |x| x.object_id }]
routes = Routing.generate_best_match ? deprecated_routes : future_routes
routes.each_with_index do |route, index|
results = route.__send__(method, options, merged, expire_on)
if results && (!results.is_a?(Array) || results.first)
return results
end
end
end
raise RoutingError, "No route matches #{options.inspect}"
end
# try to give a helpful error message when named route generation fails
def raise_named_route_error(options, named_route, named_route_name)
diff = named_route.requirements.diff(options)
unless diff.empty?
raise RoutingError, "#{named_route_name}_url failed to generate from #{options.inspect}, expected: #{named_route.requirements.inspect}, diff: #{named_route.requirements.diff(options).inspect}"
else
required_segments = named_route.segments.select {|seg| (!seg.optional?) && (!seg.is_a?(DividerSegment)) }
required_keys_or_values = required_segments.map { |seg| seg.key rescue seg.value } # we want either the key or the value from the segment
raise RoutingError, "#{named_route_name}_url failed to generate from #{options.inspect} - you may have ambiguous routes, or you may need to supply additional parameters for this route. content_url has the following required parameters: #{required_keys_or_values.inspect} - are they all satisfied?"
end
end
def call(env)
request = Request.new(env)
app = Routing::Routes.recognize(request)
app.call(env).to_a
end
def recognize(request)
params = recognize_path(request.path, extract_request_environment(request))
request.path_parameters = params.with_indifferent_access
"#{params[:controller].to_s.camelize}Controller".constantize
end
def recognize_path(path, environment={})
raise "Not optimized! Check that routing/recognition_optimisation overrides RouteSet#recognize_path."
end
def routes_by_controller
@routes_by_controller ||= Hash.new do |controller_hash, controller|
controller_hash[controller] = Hash.new do |action_hash, action|
action_hash[action] = Hash.new do |key_hash, keys|
key_hash[keys] = [
routes_for_controller_and_action_and_keys(controller, action, keys),
deprecated_routes_for_controller_and_action_and_keys(controller, action, keys)
]
end
end
end
end
def routes_for(options, merged, expire_on)
raise "Need controller and action!" unless controller && action
controller = merged[:controller]
merged = options if expire_on[:controller]
action = merged[:action] || 'index'
routes_by_controller[controller][action][merged.keys][1]
end
def routes_for_controller_and_action(controller, action)
ActiveSupport::Deprecation.warn "routes_for_controller_and_action() has been deprecated. Please use routes_for()"
selected = routes.select do |route|
route.matches_controller_and_action? controller, action
end
(selected.length == routes.length) ? routes : selected
end
def routes_for_controller_and_action_and_keys(controller, action, keys)
routes.select do |route|
route.matches_controller_and_action? controller, action
end
end
def deprecated_routes_for_controller_and_action_and_keys(controller, action, keys)
selected = routes.select do |route|
route.matches_controller_and_action? controller, action
end
selected.sort_by do |route|
(keys - route.significant_keys).length
end
end
# Subclasses and plugins may override this method to extract further attributes
# from the request, for use by route conditions and such.
def extract_request_environment(request)
{ :method => request.method }
end
end
end
end

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@ -1,49 +0,0 @@
class Object
def to_param
to_s
end
end
class TrueClass
def to_param
self
end
end
class FalseClass
def to_param
self
end
end
class NilClass
def to_param
self
end
end
class Regexp #:nodoc:
def number_of_captures
Regexp.new("|#{source}").match('').captures.length
end
def multiline?
options & MULTILINE == MULTILINE
end
class << self
def optionalize(pattern)
case unoptionalize(pattern)
when /\A(.|\(.*\))\Z/ then "#{pattern}?"
else "(?:#{pattern})?"
end
end
def unoptionalize(pattern)
[/\A\(\?:(.*)\)\?\Z/, /\A(.|\(.*\))\?\Z/].each do |regexp|
return $1 if regexp =~ pattern
end
return pattern
end
end
end

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@ -1,343 +0,0 @@
module ActionController
module Routing
class Segment #:nodoc:
RESERVED_PCHAR = ':@&=+$,;'
SAFE_PCHAR = "#{URI::REGEXP::PATTERN::UNRESERVED}#{RESERVED_PCHAR}"
if RUBY_VERSION >= '1.9'
UNSAFE_PCHAR = Regexp.new("[^#{SAFE_PCHAR}]", false).freeze
else
UNSAFE_PCHAR = Regexp.new("[^#{SAFE_PCHAR}]", false, 'N').freeze
end
# TODO: Convert :is_optional accessor to read only
attr_accessor :is_optional
alias_method :optional?, :is_optional
def initialize
@is_optional = false
end
def number_of_captures
Regexp.new(regexp_chunk).number_of_captures
end
def extraction_code
nil
end
# Continue generating string for the prior segments.
def continue_string_structure(prior_segments)
if prior_segments.empty?
interpolation_statement(prior_segments)
else
new_priors = prior_segments[0..-2]
prior_segments.last.string_structure(new_priors)
end
end
def interpolation_chunk
URI.escape(value, UNSAFE_PCHAR)
end
# Return a string interpolation statement for this segment and those before it.
def interpolation_statement(prior_segments)
chunks = prior_segments.collect { |s| s.interpolation_chunk }
chunks << interpolation_chunk
"\"#{chunks * ''}\"#{all_optionals_available_condition(prior_segments)}"
end
def string_structure(prior_segments)
optional? ? continue_string_structure(prior_segments) : interpolation_statement(prior_segments)
end
# Return an if condition that is true if all the prior segments can be generated.
# If there are no optional segments before this one, then nil is returned.
def all_optionals_available_condition(prior_segments)
optional_locals = prior_segments.collect { |s| s.local_name if s.optional? && s.respond_to?(:local_name) }.compact
optional_locals.empty? ? nil : " if #{optional_locals * ' && '}"
end
# Recognition
def match_extraction(next_capture)
nil
end
# Warning
# Returns true if this segment is optional? because of a default. If so, then
# no warning will be emitted regarding this segment.
def optionality_implied?
false
end
end
class StaticSegment < Segment #:nodoc:
attr_reader :value, :raw
alias_method :raw?, :raw
def initialize(value = nil, options = {})
super()
@value = value
@raw = options[:raw] if options.key?(:raw)
@is_optional = options[:optional] if options.key?(:optional)
end
def interpolation_chunk
raw? ? value : super
end
def regexp_chunk
chunk = Regexp.escape(value)
optional? ? Regexp.optionalize(chunk) : chunk
end
def number_of_captures
0
end
def build_pattern(pattern)
escaped = Regexp.escape(value)
if optional? && ! pattern.empty?
"(?:#{Regexp.optionalize escaped}\\Z|#{escaped}#{Regexp.unoptionalize pattern})"
elsif optional?
Regexp.optionalize escaped
else
escaped + pattern
end
end
def to_s
value
end
end
class DividerSegment < StaticSegment #:nodoc:
def initialize(value = nil, options = {})
super(value, {:raw => true, :optional => true}.merge(options))
end
def optionality_implied?
true
end
end
class DynamicSegment < Segment #:nodoc:
attr_reader :key
# TODO: Convert these accessors to read only
attr_accessor :default, :regexp
def initialize(key = nil, options = {})
super()
@key = key
@default = options[:default] if options.key?(:default)
@regexp = options[:regexp] if options.key?(:regexp)
@is_optional = true if options[:optional] || options.key?(:default)
end
def to_s
":#{key}"
end
# The local variable name that the value of this segment will be extracted to.
def local_name
"#{key}_value"
end
def extract_value
"#{local_name} = hash[:#{key}] && hash[:#{key}].to_param #{"|| #{default.inspect}" if default}"
end
def value_check
if default # Then we know it won't be nil
"#{value_regexp.inspect} =~ #{local_name}" if regexp
elsif optional?
# If we have a regexp check that the value is not given, or that it matches.
# If we have no regexp, return nil since we do not require a condition.
"#{local_name}.nil? || #{value_regexp.inspect} =~ #{local_name}" if regexp
else # Then it must be present, and if we have a regexp, it must match too.
"#{local_name} #{"&& #{value_regexp.inspect} =~ #{local_name}" if regexp}"
end
end
def expiry_statement
"expired, hash = true, options if !expired && expire_on[:#{key}]"
end
def extraction_code
s = extract_value
vc = value_check
s << "\nreturn [nil,nil] unless #{vc}" if vc
s << "\n#{expiry_statement}"
end
def interpolation_chunk(value_code = local_name)
"\#{URI.escape(#{value_code}.to_s, ActionController::Routing::Segment::UNSAFE_PCHAR)}"
end
def string_structure(prior_segments)
if optional? # We have a conditional to do...
# If we should not appear in the url, just write the code for the prior
# segments. This occurs if our value is the default value, or, if we are
# optional, if we have nil as our value.
"if #{local_name} == #{default.inspect}\n" +
continue_string_structure(prior_segments) +
"\nelse\n" + # Otherwise, write the code up to here
"#{interpolation_statement(prior_segments)}\nend"
else
interpolation_statement(prior_segments)
end
end
def value_regexp
Regexp.new "\\A#{regexp.to_s}\\Z" if regexp
end
def regexp_chunk
regexp ? regexp_string : default_regexp_chunk
end
def regexp_string
regexp_has_modifiers? ? "(#{regexp.to_s})" : "(#{regexp.source})"
end
def default_regexp_chunk
"([^#{Routing::SEPARATORS.join}]+)"
end
def number_of_captures
regexp ? regexp.number_of_captures + 1 : 1
end
def build_pattern(pattern)
pattern = "#{regexp_chunk}#{pattern}"
optional? ? Regexp.optionalize(pattern) : pattern
end
def match_extraction(next_capture)
# All non code-related keys (such as :id, :slug) are URI-unescaped as
# path parameters.
default_value = default ? default.inspect : nil
%[
value = if (m = match[#{next_capture}])
URI.unescape(m)
else
#{default_value}
end
params[:#{key}] = value if value
]
end
def optionality_implied?
[:action, :id].include? key
end
def regexp_has_modifiers?
regexp.options & (Regexp::IGNORECASE | Regexp::EXTENDED) != 0
end
end
class ControllerSegment < DynamicSegment #:nodoc:
def regexp_chunk
possible_names = Routing.possible_controllers.collect { |name| Regexp.escape name }
"(?i-:(#{(regexp || Regexp.union(*possible_names)).source}))"
end
# Don't URI.escape the controller name since it may contain slashes.
def interpolation_chunk(value_code = local_name)
"\#{#{value_code}.to_s}"
end
# Make sure controller names like Admin/Content are correctly normalized to
# admin/content
def extract_value
"#{local_name} = (hash[:#{key}] #{"|| #{default.inspect}" if default}).downcase"
end
def match_extraction(next_capture)
if default
"params[:#{key}] = match[#{next_capture}] ? match[#{next_capture}].downcase : '#{default}'"
else
"params[:#{key}] = match[#{next_capture}].downcase if match[#{next_capture}]"
end
end
end
class PathSegment < DynamicSegment #:nodoc:
def interpolation_chunk(value_code = local_name)
"\#{#{value_code}}"
end
def extract_value
"#{local_name} = hash[:#{key}] && Array(hash[:#{key}]).collect { |path_component| URI.escape(path_component.to_param, ActionController::Routing::Segment::UNSAFE_PCHAR) }.to_param #{"|| #{default.inspect}" if default}"
end
def default
''
end
def default=(path)
raise RoutingError, "paths cannot have non-empty default values" unless path.blank?
end
def match_extraction(next_capture)
"params[:#{key}] = PathSegment::Result.new_escaped((match[#{next_capture}]#{" || " + default.inspect if default}).split('/'))#{" if match[" + next_capture + "]" if !default}"
end
def default_regexp_chunk
"(.*)"
end
def number_of_captures
regexp ? regexp.number_of_captures : 1
end
def optionality_implied?
true
end
class Result < ::Array #:nodoc:
def to_s() join '/' end
def self.new_escaped(strings)
new strings.collect {|str| URI.unescape str}
end
end
end
# The OptionalFormatSegment allows for any resource route to have an optional
# :format, which decreases the amount of routes created by 50%.
class OptionalFormatSegment < DynamicSegment
def initialize(key = nil, options = {})
super(:format, {:optional => true}.merge(options))
end
def interpolation_chunk
"." + super
end
def regexp_chunk
'/|(\.[^/?\.]+)?'
end
def to_s
'(.:format)?'
end
def extract_value
"#{local_name} = options[:#{key}] && options[:#{key}].to_s.downcase"
end
#the value should not include the period (.)
def match_extraction(next_capture)
%[
if (m = match[#{next_capture}])
params[:#{key}] = URI.unescape(m.from(1))
end
]
end
end
end
end