diff options
Diffstat (limited to 'activerecord/lib')
14 files changed, 147 insertions, 105 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 285ce32e21..398936b3d8 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1450,8 +1450,8 @@ module ActiveRecord include Module.new { class_eval <<-RUBY, __FILE__, __LINE__ + 1 def destroy # def destroy - #{reflection.name}.clear # posts.clear super # super + #{reflection.name}.clear # posts.clear end # end RUBY } diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 0941700803..effb17b2ff 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -249,6 +249,17 @@ module ActiveRecord #:nodoc: # user = User.create(:preferences => %w( one two three )) # User.find(user.id).preferences # raises SerializationTypeMismatch # + # When you specify a class option, the default value for that attribute will be a new + # instance of that class. + # + # class User < ActiveRecord::Base + # serialize :preferences, OpenStruct + # end + # + # user = User.new + # user.preferences.theme_color = "red" + # + # # == Single table inheritance # # Active Record allows inheritance by storing the name of the class in a column that by @@ -668,16 +679,12 @@ module ActiveRecord #:nodoc: # Returns an array of column objects for the table associated with this class. def columns - @@columns[table_name] ||= connection.columns( - table_name, "#{name} Columns" - ).tap { |columns| - columns.each { |column| column.primary = column.name == primary_key } - } + connection_pool.columns[table_name] end # Returns a hash of column objects for the table associated with this class. def columns_hash - @@columns_hash[table_name] ||= Hash[columns.map { |column| [column.name, column] }] + connection_pool.columns_hash[table_name] end # Returns an array of column names as strings. @@ -734,14 +741,14 @@ module ActiveRecord #:nodoc: def reset_column_information connection.clear_cache! undefine_attribute_methods - reset_column_cache + connection_pool.clear_table_cache!(table_name) if table_exists? + @column_names = @content_columns = @dynamic_methods_hash = @inheritance_column = nil - @arel_engine = @relation = @arel_table = nil + @arel_engine = @relation = nil end - def reset_column_cache # :nodoc: - @@columns.delete table_name - @@columns_hash.delete table_name + def clear_cache! # :nodoc: + connection_pool.clear_cache! end def attribute_method?(attribute) @@ -840,7 +847,7 @@ module ActiveRecord #:nodoc: end def arel_table - @arel_table ||= Arel::Table.new(table_name, arel_engine) + Arel::Table.new(table_name, arel_engine) end def arel_engine @@ -1388,8 +1395,6 @@ MSG quoted_value end end - @@columns_hash = {} - @@columns = {} public # New objects can be instantiated as either empty (pass no construction parameter) or pre-set with @@ -1409,6 +1414,7 @@ MSG @changed_attributes = {} ensure_proper_type + set_serialized_attributes populate_with_current_scope_attributes self.attributes = attributes unless attributes.nil? @@ -1447,10 +1453,7 @@ MSG def init_with(coder) @attributes = coder['attributes'] - (@attributes.keys & self.class.serialized_attributes.keys).each do |key| - coder = self.class.serialized_attributes[key] - @attributes[key] = coder.load @attributes[key] - end + set_serialized_attributes @attributes_cache, @previously_changed, @changed_attributes = {}, {}, {} @association_cache = {} @@ -1724,6 +1727,13 @@ MSG private + def set_serialized_attributes + (@attributes.keys & self.class.serialized_attributes.keys).each do |key| + coder = self.class.serialized_attributes[key] + @attributes[key] = coder.load @attributes[key] + end + end + # Sets the attribute used for single table inheritance to this class name if this is not the # ActiveRecord::Base descendant. # Considering the hierarchy Reply < Message < ActiveRecord::Base, this makes it possible to diff --git a/activerecord/lib/active_record/coders/yaml_column.rb b/activerecord/lib/active_record/coders/yaml_column.rb index fcecc11aba..fb59d9fb07 100644 --- a/activerecord/lib/active_record/coders/yaml_column.rb +++ b/activerecord/lib/active_record/coders/yaml_column.rb @@ -19,6 +19,7 @@ module ActiveRecord end def load(yaml) + return object_class.new if object_class != Object && yaml.nil? return yaml unless yaml.is_a?(String) && yaml =~ /^---/ begin obj = YAML.load(yaml) @@ -27,6 +28,7 @@ module ActiveRecord raise SerializationTypeMismatch, "Attribute was supposed to be a #{object_class}, but was a #{obj.class}" end + obj ||= object_class.new if object_class != Object obj rescue *RESCUE_ERRORS diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index 54f70c59f8..4475019e0e 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -57,7 +57,9 @@ module ActiveRecord # * +wait_timeout+: number of seconds to block and wait for a connection # before giving up and raising a timeout error (default 5 seconds). class ConnectionPool + attr_accessor :automatic_reconnect attr_reader :spec, :connections + attr_reader :columns, :columns_hash, :primary_keys # Creates a new ConnectionPool object. +spec+ is a ConnectionSpecification # object which describes database connection information (e.g. adapter, @@ -81,6 +83,59 @@ module ActiveRecord @connections = [] @checked_out = [] + @automatic_reconnect = true + + @tables = Hash.new do |h, table_name| + with_connection do |conn| + h[table_name] = conn.table_exists?(table_name) + end + end + + @columns = Hash.new do |h, table_name| + h[table_name] = with_connection do |conn| + + # Fetch a list of columns + conn.columns(table_name, "#{table_name} Columns").tap do |columns| + + # set primary key information + columns.each do |column| + column.primary = column.name == primary_keys[table_name] + end + end + end + end + + @columns_hash = Hash.new do |h, table_name| + h[table_name] = Hash[columns[table_name].map { |col| + [col.name, col] + }] + end + + @primary_keys = Hash.new do |h, table_name| + h[table_name] = with_connection do |conn| + @tables[table_name] ? conn.primary_key(table_name) : 'id' + end + end + end + + # Clears out internal caches: + # + # * columns + # * columns_hash + # * primary_keys + # * tables + def clear_cache! + @columns.clear + @columns_hash.clear + @primary_keys.clear + @tables.clear + end + + # Clear out internal caches for table with +table_name+ + def clear_table_cache!(table_name) + @columns.delete table_name + @columns_hash.delete table_name + @primary_keys.delete table_name end # Retrieve the connection associated with the current thread, or call @@ -232,6 +287,8 @@ module ActiveRecord end def checkout_new_connection + raise ConnectionNotEstablished unless @automatic_reconnect + c = new_connection @connections << c checkout_and_verify(c) @@ -330,7 +387,7 @@ module ActiveRecord pool = @connection_pools[klass.name] return nil unless pool - @connection_pools.delete_if { |key, value| value == pool } + pool.automatic_reconnect = false pool.disconnect! pool.spec.config end diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb index beb06ea622..4e3d8a096f 100644 --- a/activerecord/lib/active_record/connection_adapters/column.rb +++ b/activerecord/lib/active_record/connection_adapters/column.rb @@ -238,28 +238,28 @@ module ActiveRecord def simplified_type(field_type) case field_type - when /int/i - :integer - when /float|double/i - :float - when /decimal|numeric|number/i - extract_scale(field_type) == 0 ? :integer : :decimal - when /datetime/i - :datetime - when /timestamp/i - :timestamp - when /time/i - :time - when /date/i - :date - when /clob/i, /text/i - :text - when /blob/i, /binary/i - :binary - when /char/i, /string/i - :string - when /boolean/i - :boolean + when /int/i + :integer + when /float|double/i + :float + when /decimal|numeric|number/i + extract_scale(field_type) == 0 ? :integer : :decimal + when /datetime/i + :datetime + when /timestamp/i + :timestamp + when /time/i + :time + when /date/i + :date + when /clob/i, /text/i + :text + when /blob/i, /binary/i + :binary + when /char/i, /string/i + :string + when /boolean/i + :boolean end end end diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index a04fc01d6f..acf1832938 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -42,62 +42,17 @@ module ActiveRecord super end - # Returns the Ruby class that corresponds to the abstract data type. - def klass - case type - when :integer then Fixnum - when :float then Float - when :decimal then BigDecimal - when :datetime then Time - when :date then Date - when :timestamp then Time - when :time then Time - when :text, :string then String - when :binary then String - when :boolean then Object - end - end - - def type_cast(value) - return nil if value.nil? - case type - when :string then value - when :text then value - when :integer then value.to_i rescue value ? 1 : 0 - when :float then value.to_f # returns self if it's already a Float - when :decimal then self.class.value_to_decimal(value) - when :datetime, :timestamp then value.class == Time ? value : self.class.string_to_time(value) - when :time then value.class == Time ? value : self.class.string_to_dummy_time(value) - when :date then value.class == Date ? value : self.class.string_to_date(value) - when :binary then value - when :boolean then self.class.value_to_boolean(value) - else value - end - end - - def type_cast_code(var_name) - case type - when :string then var_name - when :text then var_name - when :integer then "#{var_name}.to_i rescue #{var_name} ? 1 : 0" - when :float then "#{var_name}.to_f" - when :decimal then "#{self.class.name}.value_to_decimal(#{var_name})" - when :datetime, :timestamp then "#{var_name}.class == Time ? #{var_name} : #{self.class.name}.string_to_time(#{var_name})" - when :time then "#{var_name}.class == Time ? #{var_name} : #{self.class.name}.string_to_dummy_time(#{var_name})" - when :date then "#{var_name}.class == Date ? #{var_name} : #{self.class.name}.string_to_date(#{var_name})" - when :binary then var_name - when :boolean then "#{self.class.name}.value_to_boolean(#{var_name})" - else var_name - end - end - private def simplified_type(field_type) return :boolean if Mysql2Adapter.emulate_booleans && field_type.downcase.index(BOOL) - return :string if field_type =~ /enum/i or field_type =~ /set/i - return :integer if field_type =~ /year/i - return :binary if field_type =~ /bit/i - super + + case field_type + when /enum/i, /set/i then :string + when /year/i then :integer + when /bit/i then :binary + else + super + end end def extract_limit(sql_type) @@ -376,6 +331,7 @@ module ActiveRecord end sql end + deprecate :add_limit_offset! # SCHEMA STATEMENTS ======================================== diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index 15488cee52..cdf1ebfee4 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -537,7 +537,7 @@ module ActiveRecord def columns(table_name, name = nil)#:nodoc: sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}" columns = [] - result = execute(sql, :skip_logging) + result = execute(sql) result.each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") } result.free columns diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index a4b1aa7154..46c0f3fafe 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -786,7 +786,7 @@ module ActiveRecord def pk_and_sequence_for(table) #:nodoc: # First try looking for a sequence with a dependency on the # given table's primary key. - result = query(<<-end_sql, 'PK and serial sequence')[0] + result = exec_query(<<-end_sql, 'PK and serial sequence').rows.first SELECT attr.attname, seq.relname FROM pg_class seq, pg_attribute attr, @@ -1071,7 +1071,7 @@ module ActiveRecord # - format_type includes the column size constraint, e.g. varchar(50) # - ::regclass is a function that gives the id for a table name def column_definitions(table_name) #:nodoc: - query <<-end_sql + exec_query(<<-end_sql).rows SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull FROM pg_attribute a LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum diff --git a/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb index b04383d5bf..f650a1bc74 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb @@ -152,8 +152,11 @@ module ActiveRecord # Don't cache statements without bind values if binds.empty? - stmt = @connection.prepare(sql) - cols = stmt.columns + stmt = @connection.prepare(sql) + cols = stmt.columns + records = stmt.to_a + stmt.close + stmt = records else cache = @statements[sql] ||= { :stmt => @connection.prepare(sql) @@ -233,6 +236,15 @@ module ActiveRecord def columns(table_name, name = nil) #:nodoc: table_structure(table_name).map do |field| + case field["dflt_value"] + when /^null$/i + field["dflt_value"] = nil + when /^'(.*)'$/ + field["dflt_value"] = $1.gsub(/''/, "'") + when /^"(.*)"$/ + field["dflt_value"] = $1.gsub(/""/, '"') + end + SQLiteColumn.new(field['name'], field['dflt_value'], field['type'], field['notnull'].to_i == 0) end end @@ -334,7 +346,7 @@ module ActiveRecord end def table_structure(table_name) - structure = @connection.table_info(quote_table_name(table_name)) + structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})").to_hash raise(ActiveRecord::StatementInvalid, "Could not find table '#{table_name}'") if structure.empty? structure end diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index 2accf0a48f..72687c9ca3 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -72,6 +72,7 @@ module ActiveRecord ActiveSupport.on_load(:active_record) do ActionDispatch::Reloader.to_cleanup do ActiveRecord::Base.clear_reloadable_connections! + ActiveRecord::Base.clear_cache! end end end diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 9924755ddf..49d4b8f76b 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -193,7 +193,7 @@ db_namespace = namespace :db do file_list = [] Dir.foreach(File.join(Rails.root, 'db', 'migrate')) do |file| # only files matching "20091231235959_some_name.rb" pattern - if match_data = /(\d{14})_(.+)\.rb/.match(file) + if match_data = /^(\d{14})_(.+)\.rb$/.match(file) status = db_list.delete(match_data[1]) ? 'up' : 'down' file_list << [status, match_data[1], match_data[2]] end diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index b75a65e3ca..abc4c54109 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -285,7 +285,7 @@ module ActiveRecord case operation when 'count' then value.to_i when 'sum' then type_cast_using_column(value || '0', column) - when 'average' then value.try(:to_d) + when 'average' then value.respond_to?(:to_d) ? value.to_d : value else type_cast_using_column(value, column) end end diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb index 47a5ac2700..0465b21e88 100644 --- a/activerecord/lib/active_record/result.rb +++ b/activerecord/lib/active_record/result.rb @@ -20,6 +20,10 @@ module ActiveRecord hash_rows.each { |row| yield row } end + def to_hash + hash_rows + end + private def hash_rows @hash_rows ||= @rows.map { |row| diff --git a/activerecord/lib/active_record/session_store.rb b/activerecord/lib/active_record/session_store.rb index e3342f046f..7e77aefb21 100644 --- a/activerecord/lib/active_record/session_store.rb +++ b/activerecord/lib/active_record/session_store.rb @@ -59,12 +59,12 @@ module ActiveRecord end def drop_table! - reset_column_cache + connection_pool.clear_table_cache!(table_name) connection.drop_table table_name end def create_table! - reset_column_cache + connection_pool.clear_table_cache!(table_name) connection.create_table(table_name) do |t| t.string session_id_column, :limit => 255 t.text data_column_name |