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|
module ActionDispatch
module Routing
class Mapper
module Resources
def resource(*resources, &block)
options = resources.last.is_a?(Hash) ? resources.pop : {}
if resources.length > 1
raise ArgumentError if block_given?
resources.each { |r| resource(r, options) }
return self
end
resource = resources.pop
if @scope[:scope_level] == :resources
member do
resource(resource, options, &block)
end
return self
end
singular = resource.to_s
plural = singular.pluralize
controller(plural) do
namespace(resource) do
with_scope_level(:resource) do
yield if block_given?
get "", :to => :show, :as => "#{singular}"
post "", :to => :create
put "", :to => :update
delete "", :to => :destroy
get "new", :to => :new, :as => "new_#{singular}"
get "edit", :to => :edit, :as => "edit_#{singular}"
end
end
end
self
end
def resources(*resources, &block)
options = resources.last.is_a?(Hash) ? resources.pop : {}
if resources.length > 1
raise ArgumentError if block_given?
resources.each { |r| resources(r, options) }
return self
end
resource = resources.pop
if @scope[:scope_level] == :resources
member do
resources(resource, options, &block)
end
return self
end
plural = resource.to_s
singular = plural.singularize
controller(resource) do
namespace(resource) do
with_scope_level(:resources) do
yield if block_given?
member do
get "", :to => :show, :as => "#{singular}"
put "", :to => :update
delete "", :to => :destroy
get "edit", :to => :edit, :as => "edit_#{singular}"
end
collection do
get "", :to => :index, :as => "#{plural}"
post "", :to => :create
get "new", :to => :new, :as => "new_#{singular}"
end
end
end
end
self
end
def collection
unless @scope[:scope_level] == :resources
raise ArgumentError, "can't use collection outside resources scope"
end
with_scope_level(:collection) do
yield
end
end
def member
unless @scope[:scope_level] == :resources
raise ArgumentError, "can't use member outside resources scope"
end
with_scope_level(:member) do
scope(":id") do
yield
end
end
end
def match(*args)
options = args.last.is_a?(Hash) ? args.pop : {}
args.push(options)
case options.delete(:on)
when :collection
return collection { match(*args) }
when :member
return member { match(*args) }
end
if @scope[:scope_level] == :resources
raise ArgumentError, "can't define route directly in resources scope"
end
super
end
private
def with_scope_level(kind)
old, @scope[:scope_level] = @scope[:scope_level], kind
yield
ensure
@scope[:scope_level] = old
end
end
module Scoping
def scope(*args)
options = args.last.is_a?(Hash) ? args.pop : {}
constraints = options.delete(:constraints) || {}
unless constraints.is_a?(Hash)
block, constraints = constraints, {}
end
constraints, @scope[:constraints] = @scope[:constraints], (@scope[:constraints] || {}).merge(constraints)
blocks, @scope[:blocks] = @scope[:blocks], (@scope[:blocks] || []) + [block]
options, @scope[:options] = @scope[:options], (@scope[:options] || {}).merge(options)
path_set = controller_set = false
case args.first
when String
path_set = true
path = args.first
path, @scope[:path] = @scope[:path], "#{@scope[:path]}#{Rack::Mount::Utils.normalize_path(path)}"
when Symbol
controller_set = true
controller = args.first
controller, @scope[:controller] = @scope[:controller], controller
end
yield
self
ensure
@scope[:path] = path if path_set
@scope[:controller] = controller if controller_set
@scope[:options] = options
@scope[:blocks] = blocks
@scope[:constraints] = constraints
end
def controller(controller)
scope(controller.to_sym) { yield }
end
def namespace(path)
scope(path.to_s) { yield }
end
def constraints(constraints = {})
scope(:constraints => constraints) { yield }
end
end
class Constraints
def initialize(app, constraints = [])
@app, @constraints = app, constraints
end
def call(env)
req = Rack::Request.new(env)
@constraints.each { |constraint|
if constraint.respond_to?(:matches?) && !constraint.matches?(req)
return [417, {}, []]
elsif constraint.respond_to?(:call) && !constraint.call(req)
return [417, {}, []]
end
}
@app.call(env)
end
end
def initialize(set)
@set = set
@scope = {}
extend Scoping
extend Resources
end
def get(*args, &block)
map_method(:get, *args, &block)
end
def post(*args, &block)
map_method(:post, *args, &block)
end
def put(*args, &block)
map_method(:put, *args, &block)
end
def delete(*args, &block)
map_method(:delete, *args, &block)
end
def root(options = {})
match '/', options.merge(:as => :root)
end
def match(*args)
options = args.last.is_a?(Hash) ? args.pop : {}
if args.length > 1
args.each { |path| match(path, options) }
return self
end
if args.first.is_a?(Symbol)
return match(args.first.to_s, options.merge(:to => args.first.to_sym))
end
path = args.first
options = (@scope[:options] || {}).merge(options)
conditions, defaults = {}, {}
path = nil if path == ""
path = Rack::Mount::Utils.normalize_path(path) if path
path = "#{@scope[:path]}#{path}" if @scope[:path]
raise ArgumentError, "path is required" unless path
constraints = options[:constraints] || {}
unless constraints.is_a?(Hash)
block, constraints = constraints, {}
end
blocks = ((@scope[:blocks] || []) + [block]).compact
constraints = (@scope[:constraints] || {}).merge(constraints)
options.each { |k, v| constraints[k] = v if v.is_a?(Regexp) }
conditions[:path_info] = path
requirements = constraints.dup
path_regexp = Rack::Mount::Strexp.compile(path, constraints, SEPARATORS)
segment_keys = Rack::Mount::RegexpWithNamedGroups.new(path_regexp).names
constraints.reject! { |k, v| segment_keys.include?(k.to_s) }
conditions.merge!(constraints)
if via = options[:via]
via = Array(via).map { |m| m.to_s.upcase }
conditions[:request_method] = Regexp.union(*via)
end
defaults[:controller] = @scope[:controller].to_s if @scope[:controller]
if options[:to].respond_to?(:call)
app = options[:to]
defaults.delete(:controller)
defaults.delete(:action)
elsif options[:to].is_a?(String)
defaults[:controller], defaults[:action] = options[:to].split('#')
elsif options[:to].is_a?(Symbol)
defaults[:action] = options[:to].to_s
end
app ||= Routing::RouteSet::Dispatcher.new(:defaults => defaults)
if app.is_a?(Routing::RouteSet::Dispatcher)
unless defaults.include?(:controller) || segment_keys.include?("controller")
raise ArgumentError, "missing :controller"
end
unless defaults.include?(:action) || segment_keys.include?("action")
raise ArgumentError, "missing :action"
end
end
app = Constraints.new(app, blocks) if blocks.any?
@set.add_route(app, conditions, requirements, defaults, options[:as])
self
end
def redirect(path, options = {})
status = options[:status] || 301
lambda { |env|
req = Rack::Request.new(env)
url = req.scheme + '://' + req.host + path
[status, {'Location' => url, 'Content-Type' => 'text/html'}, ['Moved Permanently']]
}
end
private
def map_method(method, *args, &block)
options = args.last.is_a?(Hash) ? args.pop : {}
options[:via] = method
args.push(options)
match(*args, &block)
self
end
end
end
end
|
