Class: ActionController::Routing::RouteSet
- Inherits:
-
Object
- Object
- ActionController::Routing::RouteSet
show all
- Defined in:
- lib/action_controller/routing.rb
Overview
Instance Attribute Summary collapse
Instance Method Summary
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Constructor Details
Returns a new instance of RouteSet.
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# File 'lib/action_controller/routing.rb', line 410
def initialize
@routes = []
@generation_methods = Hash.new(:generate_default_path)
end
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Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(name, *args) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 616
def method_missing(name, *args)
(1..2).include?(args.length) ? named_route(name, *args) : super(name, *args)
end
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Instance Attribute Details
#categories ⇒ Object
Returns the value of attribute categories.
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# File 'lib/action_controller/routing.rb', line 409
def categories
@categories
end
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#controller_to_selector ⇒ Object
Returns the value of attribute controller_to_selector.
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# File 'lib/action_controller/routing.rb', line 409
def controller_to_selector
@controller_to_selector
end
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#routes ⇒ Object
Returns the value of attribute routes.
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# File 'lib/action_controller/routing.rb', line 409
def routes
@routes
end
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Instance Method Details
#categorize_routes ⇒ Object
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# File 'lib/action_controller/routing.rb', line 546
def categorize_routes
@categorized_routes = by_controller = Hash.new(self)
known_controllers.each do |name|
set = by_controller[name] = []
each do |route|
set << route if route.matches_controller? name
end
end
@categorized_routes
end
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#connect(*args) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 581
def connect(*args)
new_route = Route.new(*args)
@routes << new_route
return new_route
end
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#draw ⇒ Object
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# File 'lib/action_controller/routing.rb', line 587
def draw
old_routes = @routes
@routes = []
begin yield self
rescue
@routes = old_routes
raise
end
write_generation
write_recognition
end
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#each(&block) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 602
def each(&block) @routes.each(&block) end
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#empty? ⇒ Boolean
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# File 'lib/action_controller/routing.rb', line 600
def empty?() @routes.empty? end
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# File 'lib/action_controller/routing.rb', line 620
def (options, recall = {})
generate(options.dup, recall).last
end
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#generate(options, request_or_recall_hash = {}) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 415
def generate(options, request_or_recall_hash = {})
recall = request_or_recall_hash.is_a?(Hash) ? request_or_recall_hash : request_or_recall_hash.symbolized_path_parameters
use_recall = true
controller = options[:controller]
options[:action] ||= 'index' if controller
recall_controller = recall[:controller]
if (recall_controller && recall_controller.include?(?/)) || (controller && controller.include?(?/))
recall = {} if controller && controller[0] == ?/
options[:controller] = Routing.controller_relative_to(controller, recall_controller)
end
options = recall.dup if options.empty?
keys_to_delete = []
Routing.treat_hash(options, keys_to_delete)
merged = recall.merge(options)
keys_to_delete.each {|key| merged.delete key}
expire_on = Routing.expiry_hash(options, recall)
generate_path(merged, options, expire_on)
end
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#generate_default_path(*args) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 441
def generate_default_path(*args)
write_generation
generate_default_path(*args)
end
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#generate_path(merged, options, expire_on) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 438
def generate_path(merged, options, expire_on)
send @generation_methods[merged[:controller]], merged, options, expire_on
end
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#generation_code_for(ivar = 'routes', method_name = nil) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 506
def generation_code_for(ivar = 'routes', method_name = nil)
routes = instance_variable_get('@' + ivar)
key_ivar = "@keys_for_#{ivar}"
instance_variable_set(key_ivar, routes.collect {|route| route.keys})
g = generator = CodeGeneration::GenerationGenerator.new
g.def "self.#{method_name}(merged, options, expire_on)" do
g << 'unused_count = options.length + 1'
g << "unused_keys = keys = options.keys"
g << 'path = nil'
routes.each_with_index do |route, index|
g << "new_unused_keys = keys - #{key_ivar}[#{index}]"
g << 'new_path = ('
g.source.indent do
if index.zero?
g << "new_unused_count = new_unused_keys.length"
g << "hash = merged; not_expired = true"
route.write_generation(g.dup)
else
g.if "(new_unused_count = new_unused_keys.length) < unused_count" do |gp|
gp << "hash = merged; not_expired = true"
route.write_generation(gp)
end
end
end
g.source.lines.last << ' )' g.if 'new_path' do
g << 'return new_path, [] if new_unused_count.zero?'
g << 'path = new_path; unused_keys = new_unused_keys; unused_count = new_unused_count'
end
end
g << "raise RoutingError, \"No url can be generated for the hash \#{options.inspect}\" unless path"
g << "return path, unused_keys"
end
return g
end
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#known_controllers ⇒ Object
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# File 'lib/action_controller/routing.rb', line 559
def known_controllers
@routes.inject([]) do |known, route|
if (controller = route.known[:controller])
if controller.is_a?(Regexp)
known << controller.source.scan(%r{[\w\d/]+}).select {|word| controller =~ word}
else known << controller
end
end
known
end.uniq
end
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#named_route(name, path, hash = {}) ⇒ Object
Defines a new named route with the provided name and arguments. This method need only be used when you wish to use a name that a RouteSet instance method exists for, such as categories.
For example, map.categories ‘/categories’, :controller => ‘categories’ will not work due to RouteSet#categories.
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# File 'lib/action_controller/routing.rb', line 610
def named_route(name, path, hash = {})
route = connect(path, hash)
NamedRoutes.name_route(route, name)
route
end
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#recognition_failed(request) ⇒ Object
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# File 'lib/action_controller/routing.rb', line 487
def recognition_failed(request)
raise ActionController::RoutingError, "Recognition failed for #{request.path.inspect}"
end
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#recognize(request) ⇒ Object
Also known as:
recognize!
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# File 'lib/action_controller/routing.rb', line 471
def recognize(request)
string_path = request.path
string_path.chomp! if string_path[0] == ?/
path = string_path.split '/'
path.shift
hash = recognize_path(path)
return recognition_failed(request) unless hash && hash['controller']
controller = hash['controller']
hash['controller'] = controller.controller_path
request.path_parameters = hash
controller.new
end
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#reload ⇒ Object
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# File 'lib/action_controller/routing.rb', line 571
def reload
NamedRoutes.clear
if defined?(RAILS_ROOT) then load(File.join(RAILS_ROOT, 'config', 'routes.rb'))
else connect(':controller/:action/:id', :action => 'index', :id => nil)
end
NamedRoutes.install
end
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#write_generation ⇒ Object
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# File 'lib/action_controller/routing.rb', line 446
def write_generation
method_sources = []
@generation_methods = Hash.new(:generate_default_path)
categorize_routes.each do |controller, routes|
next unless routes.length < @routes.length
ivar = controller.gsub('/', '__')
method_name = "generate_path_for_#{ivar}".to_sym
instance_variable_set "@#{ivar}", routes
code = generation_code_for(ivar, method_name).to_s
method_sources << code
filename = "generated_code/routing/generation_for_controller_#{controller}.rb"
eval(code, nil, filename)
@generation_methods[controller.to_s] = method_name
@generation_methods[controller.to_sym] = method_name
end
code = generation_code_for('routes', 'generate_default_path').to_s
eval(code, nil, 'generated_code/routing/generation.rb')
return (method_sources << code)
end
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#write_recognition ⇒ Object
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# File 'lib/action_controller/routing.rb', line 491
def write_recognition
g = generator = CodeGeneration::RecognitionGenerator.new
g.finish_statement = Proc.new {|hash_expr| "return #{hash_expr}"}
g.def "self.recognize_path(path)" do
each do |route|
g << 'index = 0'
route.write_recognition(g)
end
end
eval g.to_s, nil, 'generated/routing/recognition.rb'
return g.to_s
end
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