diff options
Diffstat (limited to 'activerecord/lib/active_record')
10 files changed, 79 insertions, 207 deletions
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 5cb536af1f..ab7ad34b9e 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -3,109 +3,13 @@ require 'active_support/core_ext/enumerable' module ActiveRecord module AttributeMethods #:nodoc: extend ActiveSupport::Concern + include ActiveModel::AttributeMethods - # Declare and check for suffixed attribute methods. module ClassMethods - # Declares a method available for all attributes with the given suffix. - # Uses +method_missing+ and <tt>respond_to?</tt> to rewrite the method - # - # #{attr}#{suffix}(*args, &block) - # - # to - # - # attribute#{suffix}(#{attr}, *args, &block) - # - # An <tt>attribute#{suffix}</tt> instance method must exist and accept at least - # the +attr+ argument. - # - # For example: - # - # class Person < ActiveRecord::Base - # attribute_method_suffix '_changed?' - # - # private - # def attribute_changed?(attr) - # ... - # end - # end - # - # person = Person.find(1) - # person.name_changed? # => false - # person.name = 'Hubert' - # person.name_changed? # => true - def attribute_method_suffix(*suffixes) - attribute_method_suffixes.concat(suffixes) - rebuild_attribute_method_regexp - undefine_attribute_methods - end - - # Defines an "attribute" method (like +inheritance_column+ or - # +table_name+). A new (class) method will be created with the - # given name. If a value is specified, the new method will - # return that value (as a string). Otherwise, the given block - # will be used to compute the value of the method. - # - # The original method will be aliased, with the new name being - # prefixed with "original_". This allows the new method to - # access the original value. - # - # Example: - # - # class A < ActiveRecord::Base - # define_attr_method :primary_key, "sysid" - # define_attr_method( :inheritance_column ) do - # original_inheritance_column + "_id" - # end - # end - def define_attr_method(name, value=nil, &block) - sing = metaclass - sing.send :alias_method, "original_#{name}", name - if block_given? - sing.send :define_method, name, &block - else - # use eval instead of a block to work around a memory leak in dev - # mode in fcgi - sing.class_eval "def #{name}; #{value.to_s.inspect}; end" - end - end - - # Returns MatchData if method_name is an attribute method. - def match_attribute_method?(method_name) - rebuild_attribute_method_regexp unless defined?(@@attribute_method_regexp) && @@attribute_method_regexp - @@attribute_method_regexp.match(method_name) - end - - # Contains the names of the generated attribute methods. - def generated_methods #:nodoc: - @generated_methods ||= Set.new - end - - def generated_methods? - !generated_methods.empty? - end - # Generates all the attribute related methods for columns in the database # accessors, mutators and query methods. def define_attribute_methods - return if generated_methods? - columns_hash.keys.each do |name| - attribute_method_suffixes.each do |suffix| - method_name = "#{name}#{suffix}" - unless instance_method_already_implemented?(method_name) - generate_method = "define_attribute_method#{suffix}" - if respond_to?(generate_method) - send(generate_method, name) - else - evaluate_attribute_method("def #{method_name}(*args); send(:attribute#{suffix}, '#{name}', *args); end", method_name) - end - end - end - end - end - - def undefine_attribute_methods - generated_methods.each { |name| undef_method(name) } - @generated_methods = nil + super(columns_hash.keys) end # Checks whether the method is defined in the model or any of its subclasses @@ -118,101 +22,30 @@ module ActiveRecord raise DangerousAttributeError, "#{method_name} is defined by ActiveRecord" if @@_defined_activerecord_methods.include?(method_name) @_defined_class_methods.include?(method_name) end - - private - # Suffixes a, ?, c become regexp /(a|\?|c)$/ - def rebuild_attribute_method_regexp - suffixes = attribute_method_suffixes.map { |s| Regexp.escape(s) } - @@attribute_method_regexp = /(#{suffixes.join('|')})$/.freeze - end - - def attribute_method_suffixes - @@attribute_method_suffixes ||= [] - end - - # Evaluate the definition for an attribute related method - def evaluate_attribute_method(method_definition, method_name) - generated_methods << method_name.to_s - - begin - class_eval(method_definition, __FILE__, __LINE__) - rescue SyntaxError => err - generated_methods.delete(method_name.to_s) - if logger - logger.warn "Exception occurred during reader method compilation." - logger.warn "Maybe #{method_name} is not a valid Ruby identifier?" - logger.warn err.message - end - end - end end - # Allows access to the object attributes, which are held in the <tt>@attributes</tt> hash, as though they - # were first-class methods. So a Person class with a name attribute can use Person#name and - # Person#name= and never directly use the attributes hash -- except for multiple assigns with - # ActiveRecord#attributes=. A Milestone class can also ask Milestone#completed? to test that - # the completed attribute is not +nil+ or 0. - # - # It's also possible to instantiate related objects, so a Client class belonging to the clients - # table with a +master_id+ foreign key can instantiate master through Client#master. def method_missing(method_id, *args, &block) - method_name = method_id.to_s - # If we haven't generated any methods yet, generate them, then # see if we've created the method we're looking for. - if !self.class.generated_methods? + if !self.class.attribute_methods_generated? self.class.define_attribute_methods + method_name = method_id.to_s guard_private_attribute_method!(method_name, args) - if self.class.generated_methods.include?(method_name) + if self.class.generated_attribute_methods.instance_methods.include?(method_name) return self.send(method_id, *args, &block) end end - - if md = self.class.match_attribute_method?(method_name) - attribute_name, method_type = md.pre_match, md.to_s - if attribute_name == 'id' || @attributes.include?(attribute_name) - guard_private_attribute_method!(method_name, args) - return __send__("attribute#{method_type}", attribute_name, *args, &block) - end - end super end - # A Person object with a name attribute can ask <tt>person.respond_to?(:name)</tt>, - # <tt>person.respond_to?(:name=)</tt>, and <tt>person.respond_to?(:name?)</tt> - # which will all return +true+. - alias :respond_to_without_attributes? :respond_to? - def respond_to?(method, include_private_methods = false) - method_name = method.to_s - if super - return true - elsif !include_private_methods && super(method, true) - # If we're here than we haven't found among non-private methods - # but found among all methods. Which means that given method is private. - return false - elsif !self.class.generated_methods? - self.class.define_attribute_methods - if self.class.generated_methods.include?(method_name) - return true - end - end - - if md = self.class.match_attribute_method?(method_name) - return true if md.pre_match == 'id' || @attributes.include?(md.pre_match) - end + def respond_to?(*args) + self.class.define_attribute_methods super end - private - # prevent method_missing from calling private methods with #send - def guard_private_attribute_method!(method_name, args) - if self.class.private_method_defined?(method_name) - raise NoMethodError.new("Attempt to call private method", method_name, args) - end - end - - def missing_attribute(attr_name, stack) - raise ActiveRecord::MissingAttributeError, "missing attribute: #{attr_name}", stack + protected + def attribute_method?(attr_name) + attr_name == 'id' || attributes.include?(attr_name) end end end diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb index b88c84938d..9ec1fbeee1 100644 --- a/activerecord/lib/active_record/attribute_methods/dirty.rb +++ b/activerecord/lib/active_record/attribute_methods/dirty.rb @@ -3,17 +3,17 @@ module ActiveRecord # Track unsaved attribute changes. # # A newly instantiated object is unchanged: - # person = Person.find_by_name('uncle bob') + # person = Person.find_by_name('Uncle Bob') # person.changed? # => false # # Change the name: # person.name = 'Bob' # person.changed? # => true # person.name_changed? # => true - # person.name_was # => 'uncle bob' - # person.name_change # => ['uncle bob', 'Bob'] + # person.name_was # => 'Uncle Bob' + # person.name_change # => ['Uncle Bob', 'Bob'] # person.name = 'Bill' - # person.name_change # => ['uncle bob', 'Bill'] + # person.name_change # => ['Uncle Bob', 'Bill'] # # Save the changes: # person.save @@ -26,21 +26,33 @@ module ActiveRecord # person.name_change # => nil # # Which attributes have changed? - # person.name = 'bob' + # person.name = 'Bob' # person.changed # => ['name'] - # person.changes # => { 'name' => ['Bill', 'bob'] } + # person.changes # => { 'name' => ['Bill', 'Bob'] } + # + # Resetting an attribute returns it to its original state: + # person.reset_name! # => 'Bill' + # person.changed? # => false + # person.name_changed? # => false + # person.name # => 'Bill' # # Before modifying an attribute in-place: # person.name_will_change! - # person.name << 'by' - # person.name_change # => ['uncle bob', 'uncle bobby'] + # person.name << 'y' + # person.name_change # => ['Bill', 'Billy'] module Dirty extend ActiveSupport::Concern - DIRTY_SUFFIXES = ['_changed?', '_change', '_will_change!', '_was'] + DIRTY_AFFIXES = [ + { :suffix => '_changed?' }, + { :suffix => '_change' }, + { :suffix => '_will_change!' }, + { :suffix => '_was' }, + { :prefix => 'reset_', :suffix => '!' } + ] included do - attribute_method_suffix *DIRTY_SUFFIXES + attribute_method_affix *DIRTY_AFFIXES alias_method_chain :save, :dirty alias_method_chain :save!, :dirty @@ -118,6 +130,11 @@ module ActiveRecord attribute_changed?(attr) ? changed_attributes[attr] : __send__(attr) end + # Handle <tt>reset_*!</tt> for +method_missing+. + def reset_attribute!(attr) + self[attr] = changed_attributes[attr] if attribute_changed?(attr) + end + # Handle <tt>*_will_change!</tt> for +method_missing+. def attribute_will_change!(attr) changed_attributes[attr] = clone_attribute_value(:read_attribute, attr) @@ -175,9 +192,9 @@ module ActiveRecord def alias_attribute_with_dirty(new_name, old_name) alias_attribute_without_dirty(new_name, old_name) - DIRTY_SUFFIXES.each do |suffix| + DIRTY_AFFIXES.each do |affixes| module_eval <<-STR, __FILE__, __LINE__+1 - def #{new_name}#{suffix}; self.#{old_name}#{suffix}; end # def subject_changed?; self.title_changed?; end + def #{affixes[:prefix]}#{new_name}#{affixes[:suffix]}; self.#{affixes[:prefix]}#{old_name}#{affixes[:suffix]}; end # def reset_subject!; self.reset_title!; end STR end end diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb index bea332ef26..0b7d6d9094 100644 --- a/activerecord/lib/active_record/attribute_methods/read.rb +++ b/activerecord/lib/active_record/attribute_methods/read.rb @@ -36,7 +36,7 @@ module ActiveRecord end protected - def define_attribute_method(attr_name) + def define_method_attribute(attr_name) if self.serialized_attributes[attr_name] define_read_method_for_serialized_attribute(attr_name) else @@ -51,7 +51,7 @@ module ActiveRecord private # Define read method for serialized attribute. def define_read_method_for_serialized_attribute(attr_name) - evaluate_attribute_method "def #{attr_name}; unserialize_attribute('#{attr_name}'); end", attr_name + generated_attribute_methods.module_eval("def #{attr_name}; unserialize_attribute('#{attr_name}'); end", __FILE__, __LINE__) end # Define an attribute reader method. Cope with nil column. @@ -66,7 +66,7 @@ module ActiveRecord if cache_attribute?(attr_name) access_code = "@attributes_cache['#{attr_name}'] ||= (#{access_code})" end - evaluate_attribute_method "def #{symbol}; #{access_code}; end", symbol + generated_attribute_methods.module_eval("def #{symbol}; #{access_code}; end", __FILE__, __LINE__) end end diff --git a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb index 9e2c6174c6..a8e3e28a7a 100644 --- a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb +++ b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb @@ -15,7 +15,7 @@ module ActiveRecord protected # Defined for all +datetime+ and +timestamp+ attributes when +time_zone_aware_attributes+ are enabled. # This enhanced read method automatically converts the UTC time stored in the database to the time zone stored in Time.zone. - def define_attribute_method(attr_name) + def define_method_attribute(attr_name) if create_time_zone_conversion_attribute?(attr_name, columns_hash[attr_name]) method_body = <<-EOV def #{attr_name}(reload = false) @@ -25,7 +25,7 @@ module ActiveRecord @attributes_cache['#{attr_name}'] = time.acts_like?(:time) ? time.in_time_zone : time end EOV - evaluate_attribute_method method_body, attr_name + generated_attribute_methods.module_eval(method_body, __FILE__, __LINE__) else super end @@ -33,7 +33,7 @@ module ActiveRecord # Defined for all +datetime+ and +timestamp+ attributes when +time_zone_aware_attributes+ are enabled. # This enhanced write method will automatically convert the time passed to it to the zone stored in Time.zone. - def define_attribute_method=(attr_name) + def define_method_attribute=(attr_name) if create_time_zone_conversion_attribute?(attr_name, columns_hash[attr_name]) method_body = <<-EOV def #{attr_name}=(time) @@ -44,7 +44,7 @@ module ActiveRecord write_attribute(:#{attr_name}, time) end EOV - evaluate_attribute_method method_body, "#{attr_name}=" + generated_attribute_methods.module_eval(method_body, __FILE__, __LINE__) else super end diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index 497e72ee4a..e31acac050 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -9,8 +9,8 @@ module ActiveRecord module ClassMethods protected - def define_attribute_method=(attr_name) - evaluate_attribute_method "def #{attr_name}=(new_value); write_attribute('#{attr_name}', new_value); end", "#{attr_name}=" + def define_method_attribute=(attr_name) + generated_attribute_methods.module_eval("def #{attr_name}=(new_value); write_attribute('#{attr_name}', new_value); end", __FILE__, __LINE__) end end diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index ce93ea8eee..e358564ead 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -148,11 +148,6 @@ module ActiveRecord #:nodoc: class DangerousAttributeError < ActiveRecordError end - # Raised when you've tried to access a column which wasn't loaded by your finder. - # Typically this is because <tt>:select</tt> has been specified. - class MissingAttributeError < NoMethodError - end - # Raised when unknown attributes are supplied via mass assignment. class UnknownAttributeError < NoMethodError end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index 720fba29e9..8649f96498 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -60,7 +60,12 @@ module ActiveRecord end def quoted_date(value) - value.to_s(:db) + if value.acts_like?(:time) + zone_conversion_method = ActiveRecord::Base.default_timezone == :utc ? :getutc : :getlocal + value.respond_to?(zone_conversion_method) ? value.send(zone_conversion_method) : value + else + value + end.to_s(:db) end def quoted_string_prefix diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb index 24c734cddb..f346e3ebc8 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -277,7 +277,6 @@ module ActiveRecord add_column_options!(column_sql, column_options) unless type.to_sym == :primary_key column_sql end - alias to_s :to_sql private @@ -508,7 +507,7 @@ module ActiveRecord # concatenated together. This string can then be prepended and appended to # to generate the final SQL to create the table. def to_sql - @columns * ', ' + @columns.map(&:to_sql) * ', ' end private diff --git a/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb index 5e5e30776a..c0f5046bff 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb @@ -27,7 +27,6 @@ module ActiveRecord private def parse_sqlite_config!(config) - config[:database] ||= config[:dbfile] # Require database. unless config[:database] raise ArgumentError, "No database file specified. Missing argument: database" diff --git a/activerecord/lib/active_record/state_machine.rb b/activerecord/lib/active_record/state_machine.rb new file mode 100644 index 0000000000..aebd03344a --- /dev/null +++ b/activerecord/lib/active_record/state_machine.rb @@ -0,0 +1,24 @@ +module ActiveRecord + module StateMachine #:nodoc: + extend ActiveSupport::Concern + include ActiveModel::StateMachine + + included do + before_validation :set_initial_state + validates_presence_of :state + end + + protected + def write_state(state_machine, state) + update_attributes! :state => state.to_s + end + + def read_state(state_machine) + self.state.to_sym + end + + def set_initial_state + self.state ||= self.class.state_machine.initial_state.to_s + end + end +end |