diff options
Diffstat (limited to 'activesupport/lib')
4 files changed, 130 insertions, 112 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index 3d41aa8572..28536e32a4 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -75,34 +75,26 @@ class Hash # Returns a new hash with all keys converted by the block operation. # This includes the keys from the root hash and from all - # nested hashes. + # nested hashes and arrays. # # hash = { person: { name: 'Rob', age: '28' } } # # hash.deep_transform_keys{ |key| key.to_s.upcase } # # => {"PERSON"=>{"NAME"=>"Rob", "AGE"=>"28"}} def deep_transform_keys(&block) - result = {} - each do |key, value| - result[yield(key)] = value.is_a?(Hash) ? value.deep_transform_keys(&block) : value - end - result + _deep_transform_keys_in_object(self, &block) end # Destructively convert all keys by using the block operation. # This includes the keys from the root hash and from all - # nested hashes. + # nested hashes and arrays. def deep_transform_keys!(&block) - keys.each do |key| - value = delete(key) - self[yield(key)] = value.is_a?(Hash) ? value.deep_transform_keys!(&block) : value - end - self + _deep_transform_keys_in_object!(self, &block) end # Returns a new hash with all keys converted to strings. # This includes the keys from the root hash and from all - # nested hashes. + # nested hashes and arrays. # # hash = { person: { name: 'Rob', age: '28' } } # @@ -114,14 +106,14 @@ class Hash # Destructively convert all keys to strings. # This includes the keys from the root hash and from all - # nested hashes. + # nested hashes and arrays. def deep_stringify_keys! deep_transform_keys!{ |key| key.to_s } end # Returns a new hash with all keys converted to symbols, as long as # they respond to +to_sym+. This includes the keys from the root hash - # and from all nested hashes. + # and from all nested hashes and arrays. # # hash = { 'person' => { 'name' => 'Rob', 'age' => '28' } } # @@ -133,8 +125,38 @@ class Hash # Destructively convert all keys to symbols, as long as they respond # to +to_sym+. This includes the keys from the root hash and from all - # nested hashes. + # nested hashes and arrays. def deep_symbolize_keys! deep_transform_keys!{ |key| key.to_sym rescue key } end + + private + # support methods for deep transforming nested hashes and arrays + def _deep_transform_keys_in_object(object, &block) + case object + when Hash + object.each_with_object({}) do |(key, value), result| + result[yield(key)] = _deep_transform_keys_in_object(value, &block) + end + when Array + object.map {|e| _deep_transform_keys_in_object(e, &block) } + else + object + end + end + + def _deep_transform_keys_in_object!(object, &block) + case object + when Hash + object.keys.each do |key| + value = object.delete(key) + object[yield(key)] = _deep_transform_keys_in_object!(value, &block) + end + object + when Array + object.map! {|e| _deep_transform_keys_in_object!(e, &block)} + else + object + end + end end diff --git a/activesupport/lib/active_support/core_ext/module/delegation.rb b/activesupport/lib/active_support/core_ext/module/delegation.rb index f855833a24..e926392952 100644 --- a/activesupport/lib/active_support/core_ext/module/delegation.rb +++ b/activesupport/lib/active_support/core_ext/module/delegation.rb @@ -170,38 +170,26 @@ class Module # methods still accept two arguments. definition = (method =~ /[^\]]=$/) ? 'arg' : '*args, &block' - # The following generated methods call the target exactly once, storing + # The following generated method calls the target exactly once, storing # the returned value in a dummy variable. # # Reason is twofold: On one hand doing less calls is in general better. # On the other hand it could be that the target has side-effects, # whereas conceptually, from the user point of view, the delegator should # be doing one call. - if allow_nil - method_def = [ - "def #{method_prefix}#{method}(#{definition})", # def customer_name(*args, &block) - "_ = #{to}", # _ = client - "if !_.nil? || nil.respond_to?(:#{method})", # if !_.nil? || nil.respond_to?(:name) - " _.#{method}(#{definition})", # _.name(*args, &block) - "end", # end - "end" # end - ].join ';' - else - exception = %(raise DelegationError, "#{self}##{method_prefix}#{method} delegated to #{to}.#{method}, but #{to} is nil: \#{self.inspect}") - method_def = [ - "def #{method_prefix}#{method}(#{definition})", # def customer_name(*args, &block) - " _ = #{to}", # _ = client - " _.#{method}(#{definition})", # _.name(*args, &block) - "rescue NoMethodError => e", # rescue NoMethodError => e - " if _.nil? && e.name == :#{method}", # if _.nil? && e.name == :name - " #{exception}", # # add helpful message to the exception - " else", # else - " raise", # raise - " end", # end - "end" # end - ].join ';' - end + exception = %(raise DelegationError, "#{self}##{method_prefix}#{method} delegated to #{to}.#{method}, but #{to} is nil: \#{self.inspect}") + + method_def = [ + "def #{method_prefix}#{method}(#{definition})", + " _ = #{to}", + " if !_.nil? || nil.respond_to?(:#{method})", + " _.#{method}(#{definition})", + " else", + " #{exception unless allow_nil}", + " end", + "end" + ].join ';' module_eval(method_def, file, line) end diff --git a/activesupport/lib/active_support/subscriber.rb b/activesupport/lib/active_support/subscriber.rb index 4b9b48539f..98be78b41b 100644 --- a/activesupport/lib/active_support/subscriber.rb +++ b/activesupport/lib/active_support/subscriber.rb @@ -64,12 +64,21 @@ module ActiveSupport def add_event_subscriber(event) return if %w{ start finish }.include?(event.to_s) - notifier.subscribe("#{event}.#{namespace}", subscriber) + pattern = "#{event}.#{namespace}" + + # don't add multiple subscribers (eg. if methods are redefined) + return if subscriber.patterns.include?(pattern) + + subscriber.patterns << pattern + notifier.subscribe(pattern, subscriber) end end + attr_reader :patterns # :nodoc: + def initialize @queue_key = [self.class.name, object_id].join "-" + @patterns = [] super end diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb index 72efb09fbe..ee62523824 100644 --- a/activesupport/lib/active_support/values/time_zone.rb +++ b/activesupport/lib/active_support/values/time_zone.rb @@ -188,16 +188,72 @@ module ActiveSupport @lazy_zones_map = ThreadSafe::Cache.new - # Assumes self represents an offset from UTC in seconds (as returned from - # Time#utc_offset) and turns this into an +HH:MM formatted string. - # - # TimeZone.seconds_to_utc_offset(-21_600) # => "-06:00" - def self.seconds_to_utc_offset(seconds, colon = true) - format = colon ? UTC_OFFSET_WITH_COLON : UTC_OFFSET_WITHOUT_COLON - sign = (seconds < 0 ? '-' : '+') - hours = seconds.abs / 3600 - minutes = (seconds.abs % 3600) / 60 - format % [sign, hours, minutes] + class << self + # Assumes self represents an offset from UTC in seconds (as returned from + # Time#utc_offset) and turns this into an +HH:MM formatted string. + # + # TimeZone.seconds_to_utc_offset(-21_600) # => "-06:00" + def seconds_to_utc_offset(seconds, colon = true) + format = colon ? UTC_OFFSET_WITH_COLON : UTC_OFFSET_WITHOUT_COLON + sign = (seconds < 0 ? '-' : '+') + hours = seconds.abs / 3600 + minutes = (seconds.abs % 3600) / 60 + format % [sign, hours, minutes] + end + + def find_tzinfo(name) + TZInfo::TimezoneProxy.new(MAPPING[name] || name) + end + + alias_method :create, :new + + # Returns a TimeZone instance with the given name, or +nil+ if no + # such TimeZone instance exists. (This exists to support the use of + # this class with the +composed_of+ macro.) + def new(name) + self[name] + end + + # Returns an array of all TimeZone objects. There are multiple + # TimeZone objects per time zone, in many cases, to make it easier + # for users to find their own time zone. + def all + @zones ||= zones_map.values.sort + end + + def zones_map + @zones_map ||= begin + MAPPING.each_key {|place| self[place]} # load all the zones + @lazy_zones_map + end + end + + # Locate a specific time zone object. If the argument is a string, it + # is interpreted to mean the name of the timezone to locate. If it is a + # numeric value it is either the hour offset, or the second offset, of the + # timezone to find. (The first one with that offset will be returned.) + # Returns +nil+ if no such time zone is known to the system. + def [](arg) + case arg + when String + begin + @lazy_zones_map[arg] ||= create(arg).tap { |tz| tz.utc_offset } + rescue TZInfo::InvalidTimezoneIdentifier + nil + end + when Numeric, ActiveSupport::Duration + arg *= 3600 if arg.abs <= 13 + all.find { |z| z.utc_offset == arg.to_i } + else + raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}" + end + end + + # A convenience method for returning a collection of TimeZone objects + # for time zones in the USA. + def us_zones + @us_zones ||= all.find_all { |z| z.name =~ /US|Arizona|Indiana|Hawaii|Alaska/ } + end end include Comparable @@ -361,66 +417,9 @@ module ActiveSupport tzinfo.periods_for_local(time) end - def self.find_tzinfo(name) - TZInfo::TimezoneProxy.new(MAPPING[name] || name) - end - - class << self - alias_method :create, :new - - # Returns a TimeZone instance with the given name, or +nil+ if no - # such TimeZone instance exists. (This exists to support the use of - # this class with the +composed_of+ macro.) - def new(name) - self[name] - end - - # Returns an array of all TimeZone objects. There are multiple - # TimeZone objects per time zone, in many cases, to make it easier - # for users to find their own time zone. - def all - @zones ||= zones_map.values.sort - end - - def zones_map - @zones_map ||= begin - MAPPING.each_key {|place| self[place]} # load all the zones - @lazy_zones_map - end - end - - # Locate a specific time zone object. If the argument is a string, it - # is interpreted to mean the name of the timezone to locate. If it is a - # numeric value it is either the hour offset, or the second offset, of the - # timezone to find. (The first one with that offset will be returned.) - # Returns +nil+ if no such time zone is known to the system. - def [](arg) - case arg - when String - begin - @lazy_zones_map[arg] ||= create(arg).tap { |tz| tz.utc_offset } - rescue TZInfo::InvalidTimezoneIdentifier - nil - end - when Numeric, ActiveSupport::Duration - arg *= 3600 if arg.abs <= 13 - all.find { |z| z.utc_offset == arg.to_i } - else - raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}" - end - end - - # A convenience method for returning a collection of TimeZone objects - # for time zones in the USA. - def us_zones - @us_zones ||= all.find_all { |z| z.name =~ /US|Arizona|Indiana|Hawaii|Alaska/ } - end - end - private - - def time_now - Time.now - end + def time_now + Time.now + end end end |