diff options
Diffstat (limited to 'activerecord/lib/active_record')
12 files changed, 364 insertions, 275 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 565ebf8197..affa2fbcaf 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1833,10 +1833,10 @@ module ActiveRecord end class JoinDependency # :nodoc: - attr_reader :joins, :reflections, :table_aliases + attr_reader :join_parts, :reflections, :table_aliases def initialize(base, associations, joins) - @joins = [JoinBase.new(base, joins)] + @join_parts = [JoinBase.new(base, joins)] @associations = associations @reflections = [] @base_records_hash = {} @@ -1849,17 +1849,17 @@ module ActiveRecord def graft(*associations) associations.each do |association| join_associations.detect {|a| association == a} || - build(association.reflection.name, association.find_parent_in(self) || join_base, association.join_class) + build(association.reflection.name, association.find_parent_in(self) || join_base, association.join_type) end self end def join_associations - @joins.last(@joins.length - 1) + join_parts.last(join_parts.length - 1) end def join_base - @joins[0] + join_parts.first end def count_aliases_from_table_joins(name) @@ -1917,22 +1917,24 @@ module ActiveRecord protected - def build(associations, parent = nil, join_class = Arel::InnerJoin) - parent ||= @joins.last + def build(associations, parent = nil, join_type = Arel::InnerJoin) + parent ||= join_parts.last case associations when Symbol, String reflection = parent.reflections[associations.to_s.intern] or raise ConfigurationError, "Association named '#{ associations }' was not found; perhaps you misspelled it?" @reflections << reflection - @joins << build_join_association(reflection, parent).with_join_class(join_class) + join_association = build_join_association(reflection, parent) + join_association.join_type = join_type + @join_parts << join_association when Array associations.each do |association| - build(association, parent, join_class) + build(association, parent, join_type) end when Hash associations.keys.sort{|a,b|a.to_s<=>b.to_s}.each do |name| - build(name, parent, join_class) - build(associations[name], nil, join_class) + build(name, parent, join_type) + build(associations[name], nil, join_type) end else raise ConfigurationError, associations.inspect @@ -1949,91 +1951,111 @@ module ActiveRecord JoinAssociation.new(reflection, self, parent) end - def construct(parent, associations, joins, row) + def construct(parent, associations, join_parts, row) case associations when Symbol, String - join = joins.detect{|j| j.reflection.name.to_s == associations.to_s && j.parent_table_name == parent.class.table_name } - raise(ConfigurationError, "No such association") if join.nil? + join_part = join_parts.detect { |j| + j.reflection.name.to_s == associations.to_s && + j.parent_table_name == parent.class.table_name } + raise(ConfigurationError, "No such association") if join_part.nil? - joins.delete(join) - construct_association(parent, join, row) + join_parts.delete(join_part) + construct_association(parent, join_part, row) when Array associations.each do |association| - construct(parent, association, joins, row) + construct(parent, association, join_parts, row) end when Hash associations.sort_by { |k,_| k.to_s }.each do |name, assoc| - join = joins.detect{|j| j.reflection.name.to_s == name.to_s && j.parent_table_name == parent.class.table_name } - raise(ConfigurationError, "No such association") if join.nil? - - association = construct_association(parent, join, row) - joins.delete(join) - construct(association, assoc, joins, row) if association + join_part = join_parts.detect{ |j| + j.reflection.name.to_s == name.to_s && + j.parent_table_name == parent.class.table_name } + raise(ConfigurationError, "No such association") if join_part.nil? + + association = construct_association(parent, join_part, row) + join_parts.delete(join_part) + construct(association, assoc, join_parts, row) if association end else raise ConfigurationError, associations.inspect end end - def construct_association(record, join, row) - return if record.id.to_s != join.parent.record_id(row).to_s + def construct_association(record, join_part, row) + return if record.id.to_s != join_part.parent.record_id(row).to_s - macro = join.reflection.macro + macro = join_part.reflection.macro if macro == :has_one - return if record.instance_variable_defined?("@#{join.reflection.name}") - association = join.instantiate(row) unless row[join.aliased_primary_key].nil? - set_target_and_inverse(join, association, record) + return if record.instance_variable_defined?("@#{join_part.reflection.name}") + association = join_part.instantiate(row) unless row[join_part.aliased_primary_key].nil? + set_target_and_inverse(join_part, association, record) else - return if row[join.aliased_primary_key].nil? - association = join.instantiate(row) + return if row[join_part.aliased_primary_key].nil? + association = join_part.instantiate(row) case macro when :has_many, :has_and_belongs_to_many - collection = record.send(join.reflection.name) + collection = record.send(join_part.reflection.name) collection.loaded collection.target.push(association) collection.__send__(:set_inverse_instance, association, record) when :belongs_to - set_target_and_inverse(join, association, record) + set_target_and_inverse(join_part, association, record) else - raise ConfigurationError, "unknown macro: #{join.reflection.macro}" + raise ConfigurationError, "unknown macro: #{join_part.reflection.macro}" end end association end - def set_target_and_inverse(join, association, record) - association_proxy = record.send("set_#{join.reflection.name}_target", association) + def set_target_and_inverse(join_part, association, record) + association_proxy = record.send("set_#{join_part.reflection.name}_target", association) association_proxy.__send__(:set_inverse_instance, association, record) end - - class JoinBase # :nodoc: - attr_reader :active_record, :table_joins - delegate :table_name, :column_names, :primary_key, :reflections, :sanitize_sql, :arel_engine, :to => :active_record - - def initialize(active_record, joins = nil) + + # A JoinPart represents a part of a JoinDependency. It is an abstract class, inherited + # by JoinBase and JoinAssociation. A JoinBase represents the Active Record which + # everything else is being joined onto. A JoinAssociation represents an association which + # is joining to the base. A JoinAssociation may result in more than one actual join + # operations (for example a has_and_belongs_to_many JoinAssociation would result in + # two; one for the join table and one for the target table). + class JoinPart # :nodoc: + # The Active Record class which this join part is associated 'about'; for a JoinBase + # this is the actual base model, for a JoinAssociation this is the target model of the + # association. + attr_reader :active_record + + delegate :table_name, :column_names, :primary_key, :reflections, :sanitize_sql, :arel_engine, :to => :active_record + + def initialize(active_record) @active_record = active_record @cached_record = {} - @table_joins = joins end - + def ==(other) - other.class == self.class && - other.active_record == active_record && - other.table_joins == table_joins + raise NotImplementedError end - + + # An Arel::Table for the active_record + def table + raise NotImplementedError + end + + # The prefix to be used when aliasing columns in the active_record's table def aliased_prefix - "t0" + raise NotImplementedError end - + + # The alias for the active_record's table + def aliased_table_name + raise NotImplementedError + end + + # The alias for the primary key of the active_record's table def aliased_primary_key "#{aliased_prefix}_r0" end - - def aliased_table_name - active_record.table_name - end - + + # An array of [column_name, alias] pairs for the table def column_names_with_alias unless defined?(@column_names_with_alias) @column_names_with_alias = [] @@ -2059,33 +2081,74 @@ module ActiveRecord end end - class JoinAssociation < JoinBase # :nodoc: - attr_reader :reflection, :parent, :aliased_table_name, :aliased_prefix, :aliased_join_table_name, :parent_table_name, :join_class - delegate :options, :klass, :through_reflection, :source_reflection, :to => :reflection + class JoinBase < JoinPart # :nodoc: + # Extra joins provided when the JoinDependency was created + attr_reader :table_joins + + def initialize(active_record, joins = nil) + super(active_record) + @table_joins = joins + end + + def ==(other) + other.class == self.class && + other.active_record == active_record && + other.table_joins == table_joins + end + + def aliased_prefix + "t0" + end + + def table + Arel::Table.new(table_name, :engine => arel_engine, :columns => active_record.columns) + end + + def aliased_table_name + active_record.table_name + end + end + + class JoinAssociation < JoinPart # :nodoc: + # The reflection of the association represented + attr_reader :reflection + + # The JoinDependency object which this JoinAssociation exists within. This is mainly + # relevant for generating aliases which do not conflict with other joins which are + # part of the query. + attr_reader :join_dependency + + # A JoinBase instance representing the active record we are joining onto. + # (So in Author.has_many :posts, the Author would be that base record.) + attr_reader :parent + + # What type of join will be generated, either Arel::InnerJoin (default) or Arel::OuterJoin + attr_accessor :join_type + + # These implement abstract methods from the superclass + attr_reader :aliased_prefix, :aliased_table_name + + delegate :options, :through_reflection, :source_reflection, :to => :reflection + delegate :table, :table_name, :to => :parent, :prefix => true def initialize(reflection, join_dependency, parent = nil) reflection.check_validity! + if reflection.options[:polymorphic] raise EagerLoadPolymorphicError.new(reflection) end super(reflection.klass) - @join_dependency = join_dependency - @parent = parent - @reflection = reflection - @aliased_prefix = "t#{ join_dependency.joins.size }" - @parent_table_name = parent.active_record.table_name - @aliased_table_name = aliased_table_name_for(table_name) - @join = nil - @join_class = Arel::InnerJoin - - if reflection.macro == :has_and_belongs_to_many - @aliased_join_table_name = aliased_table_name_for(reflection.options[:join_table], "_join") - end - - if [:has_many, :has_one].include?(reflection.macro) && reflection.options[:through] - @aliased_join_table_name = aliased_table_name_for(reflection.through_reflection.klass.table_name, "_join") - end + + @reflection = reflection + @join_dependency = join_dependency + @parent = parent + @join_type = Arel::InnerJoin + + # This must be done eagerly upon initialisation because the alias which is produced + # depends on the state of the join dependency, but we want it to work the same way + # every time. + allocate_aliases end def ==(other) @@ -2095,63 +2158,29 @@ module ActiveRecord end def find_parent_in(other_join_dependency) - other_join_dependency.joins.detect do |join| - self.parent == join + other_join_dependency.join_parts.detect do |join_part| + self.parent == join_part end end - - def with_join_class(join_class) - @join_class = join_class - self - end - - def association_join - return @join if @join - - aliased_table = Arel::Table.new(table_name, :as => @aliased_table_name, - :engine => arel_engine, - :columns => klass.columns) - - parent_table = Arel::Table.new(parent.table_name, :as => parent.aliased_table_name, - :engine => arel_engine, - :columns => parent.active_record.columns) - - @join = send("build_#{reflection.macro}", aliased_table, parent_table) - - unless klass.descends_from_active_record? - sti_column = aliased_table[klass.inheritance_column] - sti_condition = sti_column.eq(klass.sti_name) - klass.descendants.each {|subclass| sti_condition = sti_condition.or(sti_column.eq(subclass.sti_name)) } - - @join << sti_condition - end - - [through_reflection, reflection].each do |ref| - if ref && ref.options[:conditions] - @join << interpolate_sql(sanitize_sql(ref.options[:conditions], aliased_table_name)) - end - end - - @join + + def join_to(relation) + send("join_#{reflection.macro}_to", relation) end - def relation - aliased = Arel::Table.new(table_name, :as => @aliased_table_name, - :engine => arel_engine, - :columns => klass.columns) - - if reflection.macro == :has_and_belongs_to_many - [Arel::Table.new(options[:join_table], :as => aliased_join_table_name, :engine => arel_engine), aliased] - elsif reflection.options[:through] - [Arel::Table.new(through_reflection.klass.table_name, :as => aliased_join_table_name, :engine => arel_engine), aliased] - else - aliased - end + def join_relation(joining_relation) + self.join_type = Arel::OuterJoin + joining_relation.joins(self) end - - def join_relation(joining_relation, join = nil) - joining_relation.joins(self.with_join_class(Arel::OuterJoin)) + + def table + @table ||= Arel::Table.new( + table_name, :as => aliased_table_name, + :engine => arel_engine, :columns => active_record.columns + ) end + + # More semantic name given we are talking about associations + alias_method :target_table, :table protected @@ -2180,87 +2209,174 @@ module ActiveRecord ActiveRecord::Base.pluralize_table_names ? table_name.to_s.pluralize : table_name end - def table_alias_for(table_name, table_alias) - "#{table_name} #{table_alias if table_name != table_alias}".strip - end - - def table_name_and_alias - table_alias_for table_name, @aliased_table_name - end - def interpolate_sql(sql) instance_eval("%@#{sql.gsub('@', '\@')}@", __FILE__, __LINE__) end private + + def allocate_aliases + @aliased_prefix = "t#{ join_dependency.join_parts.size }" + @aliased_table_name = aliased_table_name_for(table_name) + + if reflection.macro == :has_and_belongs_to_many + @aliased_join_table_name = aliased_table_name_for(reflection.options[:join_table], "_join") + elsif [:has_many, :has_one].include?(reflection.macro) && reflection.options[:through] + @aliased_join_table_name = aliased_table_name_for(reflection.through_reflection.klass.table_name, "_join") + end + end + + def process_conditions(conditions, table_name) + Arel.sql(interpolate_sql(sanitize_sql(conditions, table_name))) + end + + def join_target_table(relation, *conditions) + relation = relation.join(target_table, join_type) + + # If the target table is an STI model then we must be sure to only include records of + # its type and its sub-types. + unless active_record.descends_from_active_record? + sti_column = target_table[active_record.inheritance_column] + + sti_condition = sti_column.eq(active_record.sti_name) + active_record.descendants.each do |subclass| + sti_condition = sti_condition.or(sti_column.eq(subclass.sti_name)) + end + + conditions << sti_condition + end + + # If the reflection has conditions, add them + if options[:conditions] + conditions << process_conditions(options[:conditions], aliased_table_name) + end + + relation = relation.on(*conditions) + end - def build_has_and_belongs_to_many(aliased_table, parent_table) - join_table = Arel::Table.new(options[:join_table], :as => aliased_join_table_name, :engine => arel_engine) - fk = options[:foreign_key] || reflection.active_record.to_s.foreign_key - klass_fk = options[:association_foreign_key] || klass.to_s.foreign_key - - [ - join_table[fk].eq(parent_table[reflection.active_record.primary_key]), - aliased_table[klass.primary_key].eq(join_table[klass_fk]) - ] + def join_has_and_belongs_to_many_to(relation) + join_table = Arel::Table.new( + options[:join_table], :engine => arel_engine, + :as => @aliased_join_table_name + ) + + fk = options[:foreign_key] || reflection.active_record.to_s.foreign_key + klass_fk = options[:association_foreign_key] || reflection.klass.to_s.foreign_key + + relation = relation.join(join_table, join_type) + relation = relation.on( + join_table[fk]. + eq(parent_table[reflection.active_record.primary_key]) + ) + + join_target_table( + relation, + target_table[reflection.klass.primary_key]. + eq(join_table[klass_fk]) + ) end - def build_has_many(aliased_table, parent_table) + def join_has_many_to(relation) if reflection.options[:through] - join_table = Arel::Table.new(through_reflection.klass.table_name, - :as => aliased_join_table_name, - :engine => arel_engine) - jt_foreign_key = jt_as_extra = jt_source_extra = jt_sti_extra = nil - first_key = second_key = nil - - if through_reflection.options[:as] # has_many :through against a polymorphic join - as_key = through_reflection.options[:as].to_s - jt_foreign_key = as_key + '_id' - jt_as_extra = join_table[as_key + '_type'].eq(parent.active_record.base_class.name) - else - jt_foreign_key = through_reflection.primary_key_name - end - - case source_reflection.macro - when :has_many - second_key = options[:foreign_key] || primary_key + join_has_many_through_to(relation) + elsif reflection.options[:as] + join_has_many_polymorphic_to(relation) + else + foreign_key = options[:foreign_key] || reflection.active_record.name.foreign_key + primary_key = options[:primary_key] || parent.primary_key + + join_target_table( + relation, + target_table[foreign_key]. + eq(parent_table[primary_key]) + ) + end + end + alias :join_has_one_to :join_has_many_to + + def join_has_many_through_to(relation) + join_table = Arel::Table.new( + through_reflection.klass.table_name, :engine => arel_engine, + :as => @aliased_join_table_name + ) + + jt_conditions = [] + jt_foreign_key = first_key = second_key = nil + + if through_reflection.options[:as] # has_many :through against a polymorphic join + as_key = through_reflection.options[:as].to_s + jt_foreign_key = as_key + '_id' + + jt_conditions << + join_table[as_key + '_type']. + eq(parent.active_record.base_class.name) + else + jt_foreign_key = through_reflection.primary_key_name + end - if source_reflection.options[:as] - first_key = "#{source_reflection.options[:as]}_id" - else - first_key = through_reflection.klass.base_class.to_s.foreign_key - end + case source_reflection.macro + when :has_many + second_key = options[:foreign_key] || primary_key - unless through_reflection.klass.descends_from_active_record? - jt_sti_extra = join_table[through_reflection.active_record.inheritance_column].eq(through_reflection.klass.sti_name) - end - when :belongs_to - first_key = primary_key - if reflection.options[:source_type] - second_key = source_reflection.association_foreign_key - jt_source_extra = join_table[reflection.source_reflection.options[:foreign_type]].eq(reflection.options[:source_type]) - else - second_key = source_reflection.primary_key_name - end + if source_reflection.options[:as] + first_key = "#{source_reflection.options[:as]}_id" + else + first_key = through_reflection.klass.base_class.to_s.foreign_key end - [ - [parent_table[parent.primary_key].eq(join_table[jt_foreign_key]), jt_as_extra, jt_source_extra, jt_sti_extra].compact, - aliased_table[first_key].eq(join_table[second_key]) - ] - elsif reflection.options[:as] - id_rel = aliased_table["#{reflection.options[:as]}_id"].eq(parent_table[parent.primary_key]) - type_rel = aliased_table["#{reflection.options[:as]}_type"].eq(parent.active_record.base_class.name) - [id_rel, type_rel] - else - foreign_key = options[:foreign_key] || reflection.active_record.name.foreign_key - [aliased_table[foreign_key].eq(parent_table[reflection.options[:primary_key] || parent.primary_key])] + unless through_reflection.klass.descends_from_active_record? + jt_conditions << + join_table[through_reflection.active_record.inheritance_column]. + eq(through_reflection.klass.sti_name) + end + when :belongs_to + first_key = primary_key + + if reflection.options[:source_type] + second_key = source_reflection.association_foreign_key + + jt_conditions << + join_table[reflection.source_reflection.options[:foreign_type]]. + eq(reflection.options[:source_type]) + else + second_key = source_reflection.primary_key_name + end + end + + jt_conditions << + parent_table[parent.primary_key]. + eq(join_table[jt_foreign_key]) + + if through_reflection.options[:conditions] + jt_conditions << process_conditions(through_reflection.options[:conditions], aliased_table_name) end + + relation = relation.join(join_table, join_type).on(*jt_conditions) + + join_target_table( + relation, + target_table[first_key].eq(join_table[second_key]) + ) + end + + def join_has_many_polymorphic_to(relation) + join_target_table( + relation, + target_table["#{reflection.options[:as]}_id"]. + eq(parent_table[parent.primary_key]), + target_table["#{reflection.options[:as]}_type"]. + eq(parent.active_record.base_class.name) + ) end - alias :build_has_one :build_has_many - def build_belongs_to(aliased_table, parent_table) - [aliased_table[options[:primary_key] || reflection.klass.primary_key].eq(parent_table[options[:foreign_key] || reflection.primary_key_name])] + def join_belongs_to_to(relation) + foreign_key = options[:foreign_key] || reflection.primary_key_name + primary_key = options[:primary_key] || reflection.klass.primary_key + + join_target_table( + relation, + target_table[primary_key].eq(parent_table[foreign_key]) + ) end end end diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index ff6be4ff19..78b3507dd9 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -423,7 +423,7 @@ module ActiveRecord #:nodoc: class << self # Class methods delegate :find, :first, :last, :all, :destroy, :destroy_all, :exists?, :delete, :delete_all, :update, :update_all, :to => :scoped delegate :find_each, :find_in_batches, :to => :scoped - delegate :select, :group, :order, :reorder, :limit, :offset, :joins, :where, :preload, :eager_load, :includes, :from, :lock, :readonly, :having, :create_with, :to => :scoped + delegate :select, :group, :order, :except, :limit, :offset, :joins, :where, :preload, :eager_load, :includes, :from, :lock, :readonly, :having, :create_with, :to => :scoped delegate :count, :average, :minimum, :maximum, :sum, :calculate, :to => :scoped # Executes a custom SQL query against your database and returns all the results. The results will diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index e2b3773a99..a7a12faac2 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -10,28 +10,31 @@ module ActiveRecord return value.quoted_id if value.respond_to?(:quoted_id) case value - when String, ActiveSupport::Multibyte::Chars - value = value.to_s - if column && column.type == :binary && column.class.respond_to?(:string_to_binary) - "'#{quote_string(column.class.string_to_binary(value))}'" # ' (for ruby-mode) - elsif column && [:integer, :float].include?(column.type) - value = column.type == :integer ? value.to_i : value.to_f - value.to_s - else - "'#{quote_string(value)}'" # ' (for ruby-mode) - end - when NilClass then "NULL" - when TrueClass then (column && column.type == :integer ? '1' : quoted_true) - when FalseClass then (column && column.type == :integer ? '0' : quoted_false) - when Float, Fixnum, Bignum then value.to_s - # BigDecimals need to be output in a non-normalized form and quoted. - when BigDecimal then value.to_s('F') + when String, ActiveSupport::Multibyte::Chars + value = value.to_s + return "'#{quote_string(value)}'" unless column + + case column.type + when :binary then "'#{quote_string(column.string_to_binary(value))}'" + when :integer then value.to_i.to_s + when :float then value.to_f.to_s + else + "'#{quote_string(value)}'" + end + + when true, false + if column && column.type == :integer + value ? '1' : '0' else - if value.acts_like?(:date) || value.acts_like?(:time) - "'#{quoted_date(value)}'" - else - "'#{quote_string(value.to_s)}'" - end + value ? quoted_true : quoted_false + end + # BigDecimals need to be put in a non-normalized form and quoted. + when nil then "NULL" + when BigDecimal then value.to_s('F') + when Numeric then value.to_s + when Date, Time then "'#{quoted_date(value)}'" + else + "'#{quote_string(value.to_s)}'" end end 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 6480aeb171..60ccf9edf3 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -114,6 +114,11 @@ module ActiveRecord type_cast(default) end + # Used to convert from Strings to BLOBs + def string_to_binary(value) + self.class.string_to_binary(value) + end + class << self # Used to convert from Strings to BLOBs def string_to_binary(value) @@ -268,6 +273,10 @@ module ActiveRecord # for generating a number of table creation or table changing SQL statements. class ColumnDefinition < Struct.new(:base, :name, :type, :limit, :precision, :scale, :default, :null) #:nodoc: + def string_to_binary(value) + value + end + def sql_type base.type_to_sql(type.to_sym, limit, precision, scale) rescue type end diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index e7f7b37b27..a4b336dfaf 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -132,7 +132,7 @@ module ActiveRecord cattr_accessor :emulate_booleans self.emulate_booleans = true - ADAPTER_NAME = 'MySQL'.freeze + ADAPTER_NAME = 'MySQL' LOST_CONNECTION_ERROR_MESSAGES = [ "Server shutdown in progress", @@ -140,10 +140,10 @@ module ActiveRecord "Lost connection to MySQL server during query", "MySQL server has gone away" ] - QUOTED_TRUE, QUOTED_FALSE = '1'.freeze, '0'.freeze + QUOTED_TRUE, QUOTED_FALSE = '1', '0' NATIVE_DATABASE_TYPES = { - :primary_key => "int(11) DEFAULT NULL auto_increment PRIMARY KEY".freeze, + :primary_key => "int(11) DEFAULT NULL auto_increment PRIMARY KEY", :string => { :name => "varchar", :limit => 255 }, :text => { :name => "text" }, :integer => { :name => "int", :limit => 4 }, diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 5f14284615..dce9e99d27 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -180,8 +180,6 @@ module ActiveRecord # <encoding></tt> call on the connection. # * <tt>:min_messages</tt> - An optional client min messages that is used in a # <tt>SET client_min_messages TO <min_messages></tt> call on the connection. - # * <tt>:allow_concurrency</tt> - If true, use async query methods so Ruby threads don't deadlock; - # otherwise, use blocking query methods. class PostgreSQLAdapter < AbstractAdapter class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition def xml(*args) @@ -930,7 +928,7 @@ module ActiveRecord PGconn.translate_results = false if PGconn.respond_to?(:translate_results=) # Ignore async_exec and async_query when using postgres-pr. - @async = @config[:allow_concurrency] && @connection.respond_to?(:async_exec) + @async = @connection.respond_to?(:async_exec) # Money type has a fixed precision of 10 in PostgreSQL 8.2 and below, and as of # PostgreSQL 8.3 it has a fixed precision of 19. PostgreSQLColumn.extract_precision diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 5ad440e58d..1fbc8a1d32 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -494,7 +494,7 @@ namespace :railties do end on_skip = Proc.new do |name, migration| - $stderr.puts "WARNING: Migration #{migration.basename} from #{name} has been skipped. Migration with the same name already exists." + puts "NOTE: Migration #{migration.basename} from #{name} has been skipped. Migration with the same name already exists." end on_copy = Proc.new do |name, migration, old_path| diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index d79ef78b4d..6bf698fe97 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -177,7 +177,7 @@ module ActiveRecord distinct = options[:distinct] || distinct if @group_values.any? - execute_grouped_calculation(operation, column_name) + execute_grouped_calculation(operation, column_name, distinct) else execute_simple_calculation(operation, column_name, distinct) end @@ -191,19 +191,23 @@ module ActiveRecord end end + def operation_over_aggregate_column(column, operation, distinct) + operation == 'count' ? column.count(distinct) : column.send(operation) + end + def execute_simple_calculation(operation, column_name, distinct) #:nodoc: column = aggregate_column(column_name) # Postgresql doesn't like ORDER BY when there are no GROUP BY relation = except(:order) - select_value = operation == 'count' ? column.count(distinct) : column.send(operation) + select_value = operation_over_aggregate_column(column, operation, distinct) relation.select_values = [select_value] type_cast_calculated_value(@klass.connection.select_value(relation.to_sql), column_for(column_name), operation) end - def execute_grouped_calculation(operation, column_name) #:nodoc: + def execute_grouped_calculation(operation, column_name, distinct) #:nodoc: group_attr = @group_values.first association = @klass.reflect_on_association(group_attr.to_sym) associated = association && association.macro == :belongs_to # only count belongs_to associations @@ -221,7 +225,7 @@ module ActiveRecord relation = except(:group).group(group) relation.select_values = [ - aggregate_column(column_name).send(operation).as(aggregate_alias), + operation_over_aggregate_column(aggregate_column(column_name), operation, distinct).as(aggregate_alias), "#{group_field} AS #{group_alias}" ] @@ -273,7 +277,7 @@ module ActiveRecord else type_cast_using_column(value, column) end else - value + type_cast_using_column(value, column) end end diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index ede1c8821e..b763e22ec6 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -291,8 +291,8 @@ module ActiveRecord record = where(primary_key.eq(id)).first unless record - conditions = arel.wheres.map { |x| x.value }.join(', ') - conditions = " [WHERE #{conditions}]" if conditions.present? + conditions = arel.where_sql + conditions = " [#{conditions}]" if conditions raise RecordNotFound, "Couldn't find #{@klass.name} with ID=#{id}#{conditions}" end @@ -343,8 +343,11 @@ module ActiveRecord end def column_aliases(join_dependency) - join_dependency.joins.collect{|join| join.column_names_with_alias.collect{|column_name, aliased_name| - "#{connection.quote_table_name join.aliased_table_name}.#{connection.quote_column_name column_name} AS #{aliased_name}"}}.flatten.join(", ") + join_dependency.join_parts.collect { |join_part| + join_part.column_names_with_alias.collect{ |column_name, aliased_name| + "#{connection.quote_table_name join_part.aliased_table_name}.#{connection.quote_column_name column_name} AS #{aliased_name}" + } + }.flatten.join(", ") end def using_limitable_reflections?(reflections) diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 001207514d..59ce76ea42 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -6,7 +6,7 @@ module ActiveRecord extend ActiveSupport::Concern attr_accessor :includes_values, :eager_load_values, :preload_values, - :select_values, :group_values, :order_values, :reorder_flag, :joins_values, :where_values, :having_values, + :select_values, :group_values, :order_values, :joins_values, :where_values, :having_values, :limit_value, :offset_value, :lock_value, :readonly_value, :create_with_value, :from_value def includes(*args) @@ -53,15 +53,6 @@ module ActiveRecord relation end - def reorder(*args) - relation = clone - unless args.blank? - relation.order_values = args - relation.reorder_flag = true - end - relation - end - def joins(*args) relation = clone @@ -230,19 +221,8 @@ module ActiveRecord @implicit_readonly = true unless association_joins.empty? && stashed_association_joins.empty? - to_join = [] - join_dependency.join_associations.each do |association| - if (association_relation = association.relation).is_a?(Array) - to_join << [association_relation.first, association.join_class, association.association_join.first] - to_join << [association_relation.last, association.join_class, association.association_join.last] - else - to_join << [association_relation, association.join_class, association.association_join] - end - end - - to_join.uniq.each do |left, join_class, right| - relation = relation.join(left, join_class).on(*right) + relation = association.join_to(relation) end relation.join(custom_joins) diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb index 9ecdb99bee..dcddc3dac4 100644 --- a/activerecord/lib/active_record/relation/spawn_methods.rb +++ b/activerecord/lib/active_record/relation/spawn_methods.rb @@ -19,20 +19,11 @@ module ActiveRecord end end - (Relation::MULTI_VALUE_METHODS - [:joins, :where, :order]).each do |method| + (Relation::MULTI_VALUE_METHODS - [:joins, :where]).each do |method| value = r.send(:"#{method}_values") merged_relation.send(:"#{method}_values=", merged_relation.send(:"#{method}_values") + value) if value.present? end - order_value = r.order_values - if order_value.present? - if r.reorder_flag - merged_relation.order_values = order_value - else - merged_relation.order_values = merged_relation.order_values + order_value - end - end - merged_relation = merged_relation.joins(r.joins_values) merged_wheres = @where_values diff --git a/activerecord/lib/active_record/test_case.rb b/activerecord/lib/active_record/test_case.rb index 31b5a8651b..014a900c71 100644 --- a/activerecord/lib/active_record/test_case.rb +++ b/activerecord/lib/active_record/test_case.rb @@ -36,21 +36,6 @@ module ActiveRecord assert_queries(0, &block) end - def self.use_concurrent_connections - setup :connection_allow_concurrency_setup - teardown :connection_allow_concurrency_teardown - end - - def connection_allow_concurrency_setup - @connection = ActiveRecord::Base.remove_connection - ActiveRecord::Base.establish_connection(@connection.merge({:allow_concurrency => true})) - end - - def connection_allow_concurrency_teardown - ActiveRecord::Base.clear_all_connections! - ActiveRecord::Base.establish_connection(@connection) - end - def with_kcode(kcode) if RUBY_VERSION < '1.9' orig_kcode, $KCODE = $KCODE, kcode |