diff options
Diffstat (limited to 'activerecord/lib')
12 files changed, 128 insertions, 123 deletions
diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb index 29c711082a..79b6b80d84 100644 --- a/activerecord/lib/active_record/associations/collection_proxy.rb +++ b/activerecord/lib/active_record/associations/collection_proxy.rb @@ -881,7 +881,7 @@ module ActiveRecord !!@association.include?(record) end - def arel + def arel #:nodoc: scope.arel end diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 19cdd7f470..f8211ef9fb 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -50,7 +50,7 @@ module ActiveRecord end def empty? - if has_cached_counter? + if reflection.has_cached_counter? size.zero? else super @@ -73,8 +73,8 @@ module ActiveRecord # If the collection is empty the target is set to an empty array and # the loaded flag is set to true as well. def count_records - count = if has_cached_counter? - owner._read_attribute cached_counter_attribute_name + count = if reflection.has_cached_counter? + owner._read_attribute reflection.counter_cache_column else scope.count end @@ -87,77 +87,26 @@ module ActiveRecord [association_scope.limit_value, count].compact.min end - - # Returns whether a counter cache should be used for this association. - # - # The counter_cache option must be given on either the owner or inverse - # association, and the column must be present on the owner. - def has_cached_counter?(reflection = reflection()) - if reflection.options[:counter_cache] || (inverse = inverse_which_updates_counter_cache(reflection)) && inverse.options[:counter_cache] - owner.attribute_present?(cached_counter_attribute_name(reflection)) - end - end - - def cached_counter_attribute_name(reflection = reflection()) - if reflection.options[:counter_cache] - reflection.options[:counter_cache].to_s - else - "#{reflection.name}_count" - end - end - def update_counter(difference, reflection = reflection()) update_counter_in_database(difference, reflection) update_counter_in_memory(difference, reflection) end def update_counter_in_database(difference, reflection = reflection()) - if has_cached_counter?(reflection) - counter = cached_counter_attribute_name(reflection) - owner.class.update_counters(owner.id, counter => difference) + if reflection.has_cached_counter? + owner.class.update_counters(owner.id, reflection.counter_cache_column => difference) end end def update_counter_in_memory(difference, reflection = reflection()) - if counter_must_be_updated_by_has_many?(reflection) - counter = cached_counter_attribute_name(reflection) + if reflection.counter_must_be_updated_by_has_many? + counter = reflection.counter_cache_column + owner[counter] ||= 0 owner[counter] += difference owner.send(:clear_attribute_changes, counter) # eww end end - # This shit is nasty. We need to avoid the following situation: - # - # * An associated record is deleted via record.destroy - # * Hence the callbacks run, and they find a belongs_to on the record with a - # :counter_cache options which points back at our owner. So they update the - # counter cache. - # * In which case, we must make sure to *not* update the counter cache, or else - # it will be decremented twice. - # - # Hence this method. - def inverse_which_updates_counter_cache(reflection = reflection()) - counter_name = cached_counter_attribute_name(reflection) - inverse_which_updates_counter_named(counter_name, reflection) - end - alias inverse_updates_counter_cache? inverse_which_updates_counter_cache - - def inverse_which_updates_counter_named(counter_name, reflection) - reflection.klass._reflections.values.find { |inverse_reflection| - inverse_reflection.belongs_to? && - inverse_reflection.counter_cache_column == counter_name - } - end - - def inverse_updates_counter_in_memory?(reflection) - inverse = inverse_which_updates_counter_cache(reflection) - inverse && inverse == reflection.inverse_of - end - - def counter_must_be_updated_by_has_many?(reflection) - !inverse_updates_counter_in_memory?(reflection) && has_cached_counter?(reflection) - end - def delete_count(method, scope) if method == :delete_all scope.delete_all @@ -175,7 +124,7 @@ module ActiveRecord def delete_records(records, method) if method == :destroy records.each(&:destroy!) - update_counter(-records.length) unless inverse_updates_counter_cache? + update_counter(-records.length) unless reflection.inverse_updates_counter_cache? else scope = self.scope.where(reflection.klass.primary_key => records) update_counter(-delete_count(method, scope)) diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index 1aa6a2ca74..deb0f8c9f5 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -110,7 +110,7 @@ module ActiveRecord def update_through_counter?(method) case method when :destroy - !inverse_updates_counter_cache?(through_reflection) + !through_reflection.inverse_updates_counter_cache? when :nullify false else diff --git a/activerecord/lib/active_record/attribute_set/builder.rb b/activerecord/lib/active_record/attribute_set/builder.rb index e85777c335..0c730d313f 100644 --- a/activerecord/lib/active_record/attribute_set/builder.rb +++ b/activerecord/lib/active_record/attribute_set/builder.rb @@ -1,3 +1,5 @@ +require 'active_record/attribute' + module ActiveRecord class AttributeSet # :nodoc: class Builder # :nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index 7974ff3710..08803303cf 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -859,7 +859,7 @@ module ActiveRecord ActiveRecord::SchemaMigration.create_table end - def assume_migrated_upto_version(version, migrations_paths = ActiveRecord::Migrator.migrations_paths) + def assume_migrated_upto_version(version, migrations_paths) migrations_paths = Array(migrations_paths) version = version.to_i sm_table = quote_table_name(ActiveRecord::Migrator.schema_migrations_table_name) diff --git a/activerecord/lib/active_record/log_subscriber.rb b/activerecord/lib/active_record/log_subscriber.rb index 4d597a0ab1..b63caa4473 100644 --- a/activerecord/lib/active_record/log_subscriber.rb +++ b/activerecord/lib/active_record/log_subscriber.rb @@ -47,20 +47,40 @@ module ActiveRecord binds = " " + payload[:binds].map { |attr| render_bind(attr) }.inspect end - name = color(name, nil, true) + name = colorize_payload_name(name, payload[:name]) sql = color(sql, sql_color(sql), true) debug " #{name} #{sql}#{binds}" end + private + + def colorize_payload_name(name, payload_name) + if payload_name.blank? || payload_name == "SQL" # SQL vs Model Load/Exists + color(name, MAGENTA, true) + else + color(name, CYAN, true) + end + end + def sql_color(sql) case sql - when /\s*\Ainsert/i then GREEN - when /\s*\Aselect/i then BLUE - when /\s*\Aupdate/i then YELLOW - when /\s*\Adelete/i then RED - when /transaction\s*\Z/i then CYAN - else MAGENTA + when /\A\s*rollback/mi + RED + when /\s*.*?select .*for update/mi, /\A\s*lock/mi + WHITE + when /\A\s*select/i + BLUE + when /\A\s*insert/i + GREEN + when /\A\s*update/i + YELLOW + when /\A\s*delete/i + RED + when /transaction\s*\Z/i + CYAN + else + MAGENTA end end diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 3b90ab1e31..5bdb7213cd 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -941,10 +941,6 @@ module ActiveRecord migrations(migrations_paths).any? end - def last_version - last_migration.version - end - def last_migration #:nodoc: migrations(migrations_paths).last || NullMigration.new end @@ -955,10 +951,6 @@ module ActiveRecord Array(@migrations_paths) end - def migrations_path - migrations_paths.first - end - def migrations(paths) paths = Array(paths) diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 63ea305eae..d543a84ff1 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -79,7 +79,7 @@ db_namespace = namespace :db do task :up => [:environment, :load_config] do version = ENV['VERSION'] ? ENV['VERSION'].to_i : nil raise 'VERSION is required' unless version - ActiveRecord::Migrator.run(:up, ActiveRecord::Migrator.migrations_paths, version) + ActiveRecord::Migrator.run(:up, ActiveRecord::Tasks::DatabaseTasks.migrations_paths, version) db_namespace['_dump'].invoke end @@ -87,7 +87,7 @@ db_namespace = namespace :db do task :down => [:environment, :load_config] do version = ENV['VERSION'] ? ENV['VERSION'].to_i : nil raise 'VERSION is required - To go down one migration, run db:rollback' unless version - ActiveRecord::Migrator.run(:down, ActiveRecord::Migrator.migrations_paths, version) + ActiveRecord::Migrator.run(:down, ActiveRecord::Tasks::DatabaseTasks.migrations_paths, version) db_namespace['_dump'].invoke end @@ -99,7 +99,7 @@ db_namespace = namespace :db do db_list = ActiveRecord::SchemaMigration.normalized_versions file_list = - ActiveRecord::Migrator.migrations_paths.flat_map do |path| + ActiveRecord::Tasks::DatabaseTasks.migrations_paths.flat_map do |path| # match "20091231235959_some_name.rb" and "001_some_name.rb" pattern Dir.foreach(path).grep(/^(\d{3,})_(.+)\.rb$/) do version = ActiveRecord::SchemaMigration.normalize_migration_number($1) @@ -125,14 +125,14 @@ db_namespace = namespace :db do desc 'Rolls the schema back to the previous version (specify steps w/ STEP=n).' task :rollback => [:environment, :load_config] do step = ENV['STEP'] ? ENV['STEP'].to_i : 1 - ActiveRecord::Migrator.rollback(ActiveRecord::Migrator.migrations_paths, step) + ActiveRecord::Migrator.rollback(ActiveRecord::Tasks::DatabaseTasks.migrations_paths, step) db_namespace['_dump'].invoke end # desc 'Pushes the schema to the next version (specify steps w/ STEP=n).' task :forward => [:environment, :load_config] do step = ENV['STEP'] ? ENV['STEP'].to_i : 1 - ActiveRecord::Migrator.forward(ActiveRecord::Migrator.migrations_paths, step) + ActiveRecord::Migrator.forward(ActiveRecord::Tasks::DatabaseTasks.migrations_paths, step) db_namespace['_dump'].invoke end @@ -160,7 +160,7 @@ db_namespace = namespace :db do # desc "Raises an error if there are pending migrations" task :abort_if_pending_migrations => [:environment, :load_config] do - pending_migrations = ActiveRecord::Migrator.open(ActiveRecord::Migrator.migrations_paths).pending_migrations + pending_migrations = ActiveRecord::Migrator.open(ActiveRecord::Tasks::DatabaseTasks.migrations_paths).pending_migrations if pending_migrations.any? puts "You have #{pending_migrations.size} pending #{pending_migrations.size > 1 ? 'migrations:' : 'migration:'}" @@ -384,7 +384,7 @@ namespace :railties do puts "Copied migration #{migration.basename} from #{name}" end - ActiveRecord::Migration.copy(ActiveRecord::Migrator.migrations_paths.first, railties, + ActiveRecord::Migration.copy(ActiveRecord::Tasks::DatabaseTasks.migrations_paths.first, railties, :on_skip => on_skip, :on_copy => on_copy) end end diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index f8913eba06..2b648978b3 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -99,7 +99,8 @@ module ActiveRecord # @api public def reflect_on_all_associations(macro = nil) association_reflections = reflections.values - macro ? association_reflections.select { |reflection| reflection.macro == macro } : association_reflections + association_reflections.select! { |reflection| reflection.macro == macro } if macro + association_reflections end # Returns the AssociationReflection object for the +association+ (use the symbol). @@ -168,6 +169,54 @@ module ActiveRecord scope_chain.flatten end + def counter_cache_column + if belongs_to? + if options[:counter_cache] == true + "#{active_record.name.demodulize.underscore.pluralize}_count" + elsif options[:counter_cache] + options[:counter_cache].to_s + end + else + options[:counter_cache] ? options[:counter_cache].to_s : "#{name}_count" + end + end + + # This shit is nasty. We need to avoid the following situation: + # + # * An associated record is deleted via record.destroy + # * Hence the callbacks run, and they find a belongs_to on the record with a + # :counter_cache options which points back at our owner. So they update the + # counter cache. + # * In which case, we must make sure to *not* update the counter cache, or else + # it will be decremented twice. + # + # Hence this method. + def inverse_which_updates_counter_cache + return @inverse_which_updates_counter_cache if defined?(@inverse_which_updates_counter_cache) + @inverse_which_updates_counter_cache = klass.reflect_on_all_associations(:belongs_to).find do |inverse| + inverse.counter_cache_column == counter_cache_column + end + end + alias inverse_updates_counter_cache? inverse_which_updates_counter_cache + + def inverse_updates_counter_in_memory? + inverse_of && inverse_which_updates_counter_cache == inverse_of + end + + # Returns whether a counter cache should be used for this association. + # + # The counter_cache option must be given on either the owner or inverse + # association, and the column must be present on the owner. + def has_cached_counter? + options[:counter_cache] || + inverse_which_updates_counter_cache && inverse_which_updates_counter_cache.options[:counter_cache] && + !!active_record.columns_hash[counter_cache_column] + end + + def counter_must_be_updated_by_has_many? + !inverse_updates_counter_in_memory? && has_cached_counter? + end + def alias_candidate(name) "#{plural_name}_#{name}" end @@ -330,14 +379,6 @@ module ActiveRecord @active_record_primary_key ||= options[:primary_key] || primary_key(active_record) end - def counter_cache_column - if options[:counter_cache] == true - "#{active_record.name.demodulize.underscore.pluralize}_count" - elsif options[:counter_cache] - options[:counter_cache].to_s - end - end - def check_validity! check_validity_of_inverse! end diff --git a/activerecord/lib/active_record/schema.rb b/activerecord/lib/active_record/schema.rb index 0a5546a760..c1a42dc629 100644 --- a/activerecord/lib/active_record/schema.rb +++ b/activerecord/lib/active_record/schema.rb @@ -28,24 +28,6 @@ module ActiveRecord # ActiveRecord::Schema is only supported by database adapters that also # support migrations, the two features being very similar. class Schema < Migration - - # Returns the migrations paths. - # - # ActiveRecord::Schema.new.migrations_paths - # # => ["db/migrate"] # Rails migration path by default. - def migrations_paths - ActiveRecord::Migrator.migrations_paths - end - - def define(info, &block) # :nodoc: - instance_eval(&block) - - unless info[:version].blank? - initialize_schema_migrations_table - connection.assume_migrated_upto_version(info[:version], migrations_paths) - end - end - # Eval the given block. All methods available to the current connection # adapter are available within the block, so you can easily use the # database definition DSL to build up your schema (+create_table+, @@ -60,5 +42,23 @@ module ActiveRecord def self.define(info={}, &block) new.define(info, &block) end + + def define(info, &block) # :nodoc: + instance_eval(&block) + + if info[:version].present? + initialize_schema_migrations_table + connection.assume_migrated_upto_version(info[:version], migrations_paths) + end + end + + private + # Returns the migrations paths. + # + # ActiveRecord::Schema.new.migrations_paths + # # => ["db/migrate"] # Rails migration path by default. + def migrations_paths # :nodoc: + ActiveRecord::Migrator.migrations_paths + end end end diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb index 0b5dc6ed33..f1141a8613 100644 --- a/activerecord/lib/active_record/tasks/database_tasks.rb +++ b/activerecord/lib/active_record/tasks/database_tasks.rb @@ -221,12 +221,6 @@ module ActiveRecord end end - def load_schema_current_if_exists(format = ActiveRecord::Base.schema_format, file = nil, environment = env) - if File.exist?(file || schema_file(format)) - load_schema_current(format, file, environment) - end - end - def load_schema_current(format = ActiveRecord::Base.schema_format, file = nil, environment = env) each_current_configuration(environment) { |configuration| load_schema configuration, format, file diff --git a/activerecord/lib/active_record/timestamp.rb b/activerecord/lib/active_record/timestamp.rb index 20e4235788..e759475cfb 100644 --- a/activerecord/lib/active_record/timestamp.rb +++ b/activerecord/lib/active_record/timestamp.rb @@ -15,14 +15,21 @@ module ActiveRecord # # == Time Zone aware attributes # - # By default, ActiveRecord::Base keeps all the datetime columns time zone aware by executing following code. + # Active Record keeps all the <tt>datetime</tt> and <tt>time</tt> columns + # time-zone aware. By default, these values are stored in the database as UTC + # and converted back to the current Time.zone when pulled from the database. # - # config.active_record.time_zone_aware_attributes = true + # This feature can be turned off completely by setting: # - # This feature can easily be turned off by assigning value <tt>false</tt> . + # config.active_record.time_zone_aware_attributes = false # - # If your attributes are time zone aware and you desire to skip time zone conversion to the current Time.zone - # when reading certain attributes then you can do following: + # You can also specify that only <tt>datetime</tt> columns should be time-zone + # aware (while <tt>time</tt> should not) by setting: + # + # ActiveRecord::Base.time_zone_aware_types = [:datetime] + # + # Finally, you can indicate specific attributes of a model for which time zone + # conversion should not applied, for instance by setting: # # class Topic < ActiveRecord::Base # self.skip_time_zone_conversion_for_attributes = [:written_on] |