diff options
Diffstat (limited to 'activerecord/lib/active_record')
19 files changed, 280 insertions, 133 deletions
diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb index f9c9f8afda..2b7e4f28c5 100644 --- a/activerecord/lib/active_record/associations/alias_tracker.rb +++ b/activerecord/lib/active_record/associations/alias_tracker.rb @@ -5,20 +5,23 @@ module ActiveRecord # Keeps track of table aliases for ActiveRecord::Associations::ClassMethods::JoinDependency and # ActiveRecord::Associations::ThroughAssociationScope class AliasTracker # :nodoc: - attr_reader :aliases, :connection + attr_reader :aliases - def self.empty(connection) - new connection, Hash.new(0) + def self.create(connection, initial_table, type_caster) + aliases = Hash.new(0) + aliases[initial_table] = 1 + new connection, aliases, type_caster end - def self.create(connection, table_joins) - if table_joins.empty? - empty connection + def self.create_with_joins(connection, initial_table, joins, type_caster) + if joins.empty? + create(connection, initial_table, type_caster) else - aliases = Hash.new { |h,k| - h[k] = initial_count_for(connection, k, table_joins) + aliases = Hash.new { |h, k| + h[k] = initial_count_for(connection, k, joins) } - new connection, aliases + aliases[initial_table] = 1 + new connection, aliases, type_caster end end @@ -51,19 +54,20 @@ module ActiveRecord end # table_joins is an array of arel joins which might conflict with the aliases we assign here - def initialize(connection, aliases) + def initialize(connection, aliases, type_caster) @aliases = aliases @connection = connection + @type_caster = type_caster end - def aliased_table_for(table_name, aliased_name, **table_options) + def aliased_table_for(table_name, aliased_name) if aliases[table_name].zero? # If it's zero, we can have our table_name aliases[table_name] = 1 - Arel::Table.new(table_name, table_options) + Arel::Table.new(table_name, type_caster: @type_caster) else # Otherwise, we need to use an alias - aliased_name = connection.table_alias_for(aliased_name) + aliased_name = @connection.table_alias_for(aliased_name) # Update the count aliases[aliased_name] += 1 @@ -73,14 +77,14 @@ module ActiveRecord else aliased_name end - Arel::Table.new(table_name, table_options).alias(table_alias) + Arel::Table.new(table_name, type_caster: @type_caster).alias(table_alias) end end private def truncate(name) - name.slice(0, connection.table_alias_length - 2) + name.slice(0, @connection.table_alias_length - 2) end end end diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index 53f65920e1..d06b7b3508 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -33,10 +33,11 @@ module ActiveRecord reflection = association.reflection scope = klass.unscoped owner = association.owner - alias_tracker = AliasTracker.empty connection + alias_tracker = AliasTracker.create connection, association.klass.table_name, klass.type_caster + chain_head, chain_tail = get_chain(reflection, association, alias_tracker) scope.extending! Array(reflection.options[:extend]) - add_constraints(scope, owner, klass, reflection, alias_tracker) + add_constraints(scope, owner, klass, reflection, connection, chain_head, chain_tail) end def join_type @@ -61,23 +62,6 @@ module ActiveRecord end private - - def construct_tables(chain, klass, refl, alias_tracker) - chain.map do |reflection| - alias_tracker.aliased_table_for( - table_name_for(reflection, klass, refl), - table_alias_for(reflection, refl, reflection != refl), - type_caster: klass.type_caster, - ) - end - end - - def table_alias_for(reflection, refl, join = false) - name = "#{reflection.plural_name}_#{alias_suffix(refl)}" - name << "_join" if join - name - end - def join(table, constraint) table.create_join(table, table.create_on(constraint), join_type) end @@ -96,8 +80,8 @@ module ActiveRecord bind_value scope, column, value, connection end - def last_chain_scope(scope, table, reflection, owner, connection, assoc_klass) - join_keys = reflection.join_keys(assoc_klass) + def last_chain_scope(scope, table, reflection, owner, connection, association_klass) + join_keys = reflection.join_keys(association_klass) key = join_keys.key foreign_key = join_keys.foreign_key @@ -113,8 +97,8 @@ module ActiveRecord end end - def next_chain_scope(scope, table, reflection, connection, assoc_klass, foreign_table, next_reflection) - join_keys = reflection.join_keys(assoc_klass) + def next_chain_scope(scope, table, reflection, connection, association_klass, foreign_table, next_reflection) + join_keys = reflection.join_keys(association_klass) key = join_keys.key foreign_key = join_keys.foreign_key @@ -129,38 +113,57 @@ module ActiveRecord scope = scope.joins(join(foreign_table, constraint)) end - def add_constraints(scope, owner, assoc_klass, refl, tracker) - chain = refl.chain - scope_chain = refl.scope_chain - connection = tracker.connection + class ReflectionProxy < SimpleDelegator # :nodoc: + attr_accessor :next + attr_reader :alias_name + + def initialize(reflection, alias_name) + super(reflection) + @alias_name = alias_name + end + + def all_includes; nil; end + end - tables = construct_tables(chain, assoc_klass, refl, tracker) + def get_chain(reflection, association, tracker) + name = reflection.name + runtime_reflection = Reflection::RuntimeReflection.new(reflection, association) + previous_reflection = runtime_reflection + reflection.chain.drop(1).each do |refl| + alias_name = tracker.aliased_table_for(refl.table_name, refl.alias_candidate(name)) + proxy = ReflectionProxy.new(refl, alias_name) + previous_reflection.next = proxy + previous_reflection = proxy + end + [runtime_reflection, previous_reflection] + end - owner_reflection = chain.last - table = tables.last - scope = last_chain_scope(scope, table, owner_reflection, owner, connection, assoc_klass) + def add_constraints(scope, owner, association_klass, refl, connection, chain_head, chain_tail) + owner_reflection = chain_tail + table = owner_reflection.alias_name + scope = last_chain_scope(scope, table, owner_reflection, owner, connection, association_klass) - chain.each_with_index do |reflection, i| - table, foreign_table = tables.shift, tables.first + reflection = chain_head + loop do + break unless reflection + table = reflection.alias_name - unless reflection == chain.last - next_reflection = chain[i + 1] - scope = next_chain_scope(scope, table, reflection, connection, assoc_klass, foreign_table, next_reflection) + unless reflection == chain_tail + next_reflection = reflection.next + foreign_table = next_reflection.alias_name + scope = next_chain_scope(scope, table, reflection, connection, association_klass, foreign_table, next_reflection) end - is_first_chain = i == 0 - klass = is_first_chain ? assoc_klass : reflection.klass - # Exclude the scope of the association itself, because that # was already merged in the #scope method. - scope_chain[i].each do |scope_chain_item| - item = eval_scope(klass, scope_chain_item, owner) + reflection.constraints.each do |scope_chain_item| + item = eval_scope(reflection.klass, scope_chain_item, owner) if scope_chain_item == refl.scope scope.merge! item.except(:where, :includes, :bind) end - if is_first_chain + reflection.all_includes do scope.includes! item.includes_values end @@ -168,26 +171,13 @@ module ActiveRecord scope.bind_values += item.bind_values scope.order_values |= item.order_values end + + reflection = reflection.next end scope end - def alias_suffix(refl) - refl.name - end - - def table_name_for(reflection, klass, refl) - if reflection == refl - # If this is a polymorphic belongs_to, we want to get the klass from the - # association because it depends on the polymorphic_type attribute of - # the owner - klass.table_name - else - reflection.table_name - end - end - def eval_scope(klass, scope, owner) klass.unscoped.instance_exec(owner, &scope) end diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb index 66e997c3c8..4b75370171 100644 --- a/activerecord/lib/active_record/associations/join_dependency.rb +++ b/activerecord/lib/active_record/associations/join_dependency.rb @@ -93,8 +93,7 @@ module ActiveRecord # joins # => [] # def initialize(base, associations, joins) - @alias_tracker = AliasTracker.create(base.connection, joins) - @alias_tracker.aliased_table_for(base.table_name, base.table_name, type_caster: base.type_caster) # Updates the count for base.table_name to 1 + @alias_tracker = AliasTracker.create_with_joins(base.connection, base.table_name, joins, base.type_caster) tree = self.class.make_tree associations @join_root = JoinBase.new base, build(tree, base) @join_root.children.each { |child| construct_tables! @join_root, child } @@ -186,13 +185,9 @@ module ActiveRecord def table_aliases_for(parent, node) node.reflection.chain.map { |reflection| - if reflection.klass - type_caster = reflection.klass.type_caster - end alias_tracker.aliased_table_for( reflection.table_name, - table_alias_for(reflection, parent, reflection != node.reflection), - type_caster: type_caster, + table_alias_for(reflection, parent, reflection != node.reflection) ) } end diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb index e47e81aa0f..09828dbd9b 100644 --- a/activerecord/lib/active_record/associations/through_association.rb +++ b/activerecord/lib/active_record/associations/through_association.rb @@ -91,6 +91,17 @@ module ActiveRecord raise HasManyThroughNestedAssociationsAreReadonly.new(owner, reflection) end end + + def build_record(attributes) + inverse = source_reflection.inverse_of + target = through_association.target + + if inverse && target && !target.is_a?(Array) + attributes[inverse.foreign_key] = target.id + end + + super(attributes) + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index 12b16b2473..59cdd8e98c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -258,7 +258,18 @@ module ActiveRecord # Rolls back the transaction (and turns on auto-committing). Must be # done if the transaction block raises an exception or returns false. - def rollback_db_transaction() end + def rollback_db_transaction + exec_rollback_db_transaction + end + + def exec_rollback_db_transaction() end #:nodoc: + + def rollback_to_savepoint(name = nil) + exec_rollback_to_savepoint(name) + end + + def exec_rollback_to_savepoint(name = nil) #:nodoc: + end def default_sequence_name(table, column) nil diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb index 4a4506c7f5..5e27cfe507 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb @@ -3,7 +3,7 @@ module ActiveRecord module QueryCache class << self def included(base) #:nodoc: - dirties_query_cache base, :insert, :update, :delete + dirties_query_cache base, :insert, :update, :delete, :rollback_to_savepoint, :rollback_db_transaction end def dirties_query_cache(base, *method_names) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb b/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb index 25c17ce971..c0662f8473 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb @@ -9,7 +9,7 @@ module ActiveRecord execute("SAVEPOINT #{name}") end - def rollback_to_savepoint(name = current_savepoint_name) + def exec_rollback_to_savepoint(name = current_savepoint_name) execute("ROLLBACK TO SAVEPOINT #{name}") 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 1cf1600d81..68d8a2cd6a 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -22,7 +22,7 @@ module ActiveRecord end end - class ChangeColumnDefinition < Struct.new(:column, :type, :options) #:nodoc: + class ChangeColumnDefinition < Struct.new(:column, :name) #:nodoc: end class ForeignKeyDefinition < Struct.new(:from_table, :to_table, :options) #:nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb index 0834105079..42ea599a74 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb @@ -12,6 +12,12 @@ module ActiveRecord spec end + def column_spec_for_primary_key(column) + return if column.type == :integer + spec = { id: column.type.inspect } + spec.merge!(prepare_column_options(column).delete_if { |key, _| [:name, :type].include?(key) }) + end + # This can be overridden on a Adapter level basis to support other # extended datatypes (Example: Adding an array option in the # PostgreSQLAdapter) 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 24afd9c5da..34d60493ea 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -981,12 +981,12 @@ module ActiveRecord end private - def create_table_definition(name, temporary, options, as = nil) + def create_table_definition(name, temporary = false, options = nil, as = nil) TableDefinition.new native_database_types, name, temporary, options, as end def create_alter_table(name) - AlterTable.new create_table_definition(name, false, {}) + AlterTable.new create_table_definition(name) end def foreign_key_name(table_name, options) # :nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 308e4c77bd..fa24d9b43f 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -352,9 +352,6 @@ module ActiveRecord def create_savepoint(name = nil) end - def rollback_to_savepoint(name = nil) - end - def release_savepoint(name = nil) end @@ -460,7 +457,12 @@ module ActiveRecord end def translate_exception_class(e, sql) - message = "#{e.class.name}: #{e.message}: #{sql}" + begin + message = "#{e.class.name}: #{e.message}: #{sql}" + rescue Encoding::CompatibilityError + message = "#{e.class.name}: #{e.message.force_encoding sql.encoding}: #{sql}" + end + @logger.error message if @logger exception = translate_exception(e, message) exception.set_backtrace e.backtrace diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb index 03d30b5dd0..e9a3c26c32 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -38,12 +38,8 @@ module ActiveRecord end def visit_ChangeColumnDefinition(o) - column = o.column - options = o.options - sql_type = type_to_sql(o.type, options[:limit], options[:precision], options[:scale]) - change_column_sql = "CHANGE #{quote_column_name(column.name)} #{quote_column_name(options[:name])} #{sql_type}" - add_column_options!(change_column_sql, options.merge(column: column)) - add_column_position!(change_column_sql, options) + change_column_sql = "CHANGE #{quote_column_name(o.name)} #{accept(o.column)}" + add_column_position!(change_column_sql, column_options(o.column)) end def add_column_position!(sql, options) @@ -65,6 +61,18 @@ module ActiveRecord SchemaCreation.new self end + def column_spec_for_primary_key(column) + spec = {} + if column.extra == 'auto_increment' + return unless column.limit == 8 + spec[:id] = ':bigint' + else + spec[:id] = column.type.inspect + spec.merge!(prepare_column_options(column).delete_if { |key, _| [:name, :type, :null].include?(key) }) + end + spec + end + class Column < ConnectionAdapters::Column # :nodoc: attr_reader :collation, :strict, :extra @@ -331,7 +339,7 @@ module ActiveRecord execute "COMMIT" end - def rollback_db_transaction #:nodoc: + def exec_rollback_db_transaction #:nodoc: execute "ROLLBACK" end @@ -756,7 +764,7 @@ module ActiveRecord end def add_column_sql(table_name, column_name, type, options = {}) - td = create_table_definition table_name, options[:temporary], options[:options] + td = create_table_definition(table_name) cd = td.new_column_definition(column_name, type, options) schema_creation.visit_AddColumn cd end @@ -772,21 +780,23 @@ module ActiveRecord options[:null] = column.null end - options[:name] = column.name - schema_creation.accept ChangeColumnDefinition.new column, type, options + td = create_table_definition(table_name) + cd = td.new_column_definition(column.name, type, options) + schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) end def rename_column_sql(table_name, column_name, new_column_name) column = column_for(table_name, column_name) options = { - name: new_column_name, default: column.default, null: column.null, auto_increment: column.extra == "auto_increment" } current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'", 'SCHEMA')["Type"] - schema_creation.accept ChangeColumnDefinition.new column, current_type, options + td = create_table_definition(table_name) + cd = td.new_column_definition(new_column_name, current_type, options) + schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) end def remove_column_sql(table_name, column_name, type = nil, options = {}) @@ -880,7 +890,7 @@ module ActiveRecord end end - def create_table_definition(name, temporary, options, as = nil) # :nodoc: + def create_table_definition(name, temporary = false, options = nil, as = nil) # :nodoc: TableDefinition.new(native_database_types, name, temporary, options, as) end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb index 37e5c3859c..1458fbf496 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb @@ -15,6 +15,10 @@ module ActiveRecord @default_function = default_function end + + def serial? + default_function && default_function =~ /\Anextval\(.*\)\z/ + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb index d09468329a..11d3f5301a 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb @@ -223,7 +223,7 @@ module ActiveRecord end # Aborts a transaction. - def rollback_db_transaction + def exec_rollback_db_transaction execute "ROLLBACK" end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 02cafc8079..13bb5c187e 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -125,6 +125,21 @@ module ActiveRecord PostgreSQL::SchemaCreation.new self end + def column_spec_for_primary_key(column) + spec = {} + if column.serial? + return unless column.sql_type == 'bigint' + spec[:id] = ':bigserial' + elsif column.type == :uuid + spec[:id] = ':uuid' + spec[:default] = column.default_function.inspect + else + spec[:id] = column.type.inspect + spec.merge!(prepare_column_options(column).delete_if { |key, _| [:name, :type, :null].include?(key) }) + end + spec + end + # Adds +:array+ option to the default set provided by the # AbstractAdapter def prepare_column_options(column) # :nodoc: @@ -746,7 +761,7 @@ module ActiveRecord $1.strip if $1 end - def create_table_definition(name, temporary, options, as = nil) # :nodoc: + def create_table_definition(name, temporary = false, options = nil, as = nil) # :nodoc: PostgreSQL::TableDefinition.new native_database_types, name, temporary, options, as end end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index f3d2b25bfe..03dfd29a0a 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -351,7 +351,7 @@ module ActiveRecord log('commit transaction',nil) { @connection.commit } end - def rollback_db_transaction #:nodoc: + def exec_rollback_db_transaction #:nodoc: log('rollback transaction',nil) { @connection.rollback } end diff --git a/activerecord/lib/active_record/nested_attributes.rb b/activerecord/lib/active_record/nested_attributes.rb index 0f9b52f69f..846e1162a9 100644 --- a/activerecord/lib/active_record/nested_attributes.rb +++ b/activerecord/lib/active_record/nested_attributes.rb @@ -82,7 +82,7 @@ module ActiveRecord # Note that the model will _not_ be destroyed until the parent is saved. # # Also note that the model will not be destroyed unless you also specify - # its id in the updated hash. + # its id in the updated hash. # # === One-to-many # @@ -114,7 +114,7 @@ module ActiveRecord # member.posts.first.title # => 'Kari, the awesome Ruby documentation browser!' # member.posts.second.title # => 'The egalitarian assumption of the modern citizen' # - # You may also set a :reject_if proc to silently ignore any new record + # You may also set a +:reject_if+ proc to silently ignore any new record # hashes if they fail to pass your criteria. For example, the previous # example could be rewritten as: # @@ -136,7 +136,7 @@ module ActiveRecord # member.posts.first.title # => 'Kari, the awesome Ruby documentation browser!' # member.posts.second.title # => 'The egalitarian assumption of the modern citizen' # - # Alternatively, :reject_if also accepts a symbol for using methods: + # Alternatively, +:reject_if+ also accepts a symbol for using methods: # # class Member < ActiveRecord::Base # has_many :posts @@ -215,13 +215,13 @@ module ActiveRecord # All changes to models, including the destruction of those marked for # destruction, are saved and destroyed automatically and atomically when # the parent model is saved. This happens inside the transaction initiated - # by the parents save method. See ActiveRecord::AutosaveAssociation. + # by the parent's save method. See ActiveRecord::AutosaveAssociation. # # === Validating the presence of a parent model # # If you want to validate that a child record is associated with a parent - # record, you can use <tt>validates_presence_of</tt> and - # <tt>inverse_of</tt> as this example illustrates: + # record, you can use the +validates_presence_of+ method and the +:inverse_of+ + # key as this example illustrates: # # class Member < ActiveRecord::Base # has_many :posts, inverse_of: :member @@ -233,7 +233,7 @@ module ActiveRecord # validates_presence_of :member # end # - # Note that if you do not specify the <tt>inverse_of</tt> option, then + # Note that if you do not specify the +:inverse_of+ option, then # Active Record will try to automatically guess the inverse association # based on heuristics. # @@ -267,29 +267,31 @@ module ActiveRecord # Allows you to specify a Proc or a Symbol pointing to a method # that checks whether a record should be built for a certain attribute # hash. The hash is passed to the supplied Proc or the method - # and it should return either +true+ or +false+. When no :reject_if + # and it should return either +true+ or +false+. When no +:reject_if+ # is specified, a record will be built for all attribute hashes that # do not have a <tt>_destroy</tt> value that evaluates to true. # Passing <tt>:all_blank</tt> instead of a Proc will create a proc # that will reject a record where all the attributes are blank excluding - # any value for _destroy. + # any value for +_destroy+. # [:limit] - # Allows you to specify the maximum number of the associated records that - # can be processed with the nested attributes. Limit also can be specified as a - # Proc or a Symbol pointing to a method that should return number. If the size of the - # nested attributes array exceeds the specified limit, NestedAttributes::TooManyRecords - # exception is raised. If omitted, any number associations can be processed. - # Note that the :limit option is only applicable to one-to-many associations. + # Allows you to specify the maximum number of associated records that + # can be processed with the nested attributes. Limit also can be specified + # as a Proc or a Symbol pointing to a method that should return a number. + # If the size of the nested attributes array exceeds the specified limit, + # NestedAttributes::TooManyRecords exception is raised. If omitted, any + # number of associations can be processed. + # Note that the +:limit+ option is only applicable to one-to-many + # associations. # [:update_only] # For a one-to-one association, this option allows you to specify how - # nested attributes are to be used when an associated record already + # nested attributes are going to be used when an associated record already # exists. In general, an existing record may either be updated with the # new set of attribute values or be replaced by a wholly new record - # containing those values. By default the :update_only option is +false+ + # containing those values. By default the +:update_only+ option is +false+ # and the nested attributes are used to update the existing record only # if they include the record's <tt>:id</tt> value. Otherwise a new # record will be instantiated and used to replace the existing one. - # However if the :update_only option is +true+, the nested attributes + # However if the +:update_only+ option is +true+, the nested attributes # are used to update the record's attributes always, regardless of # whether the <tt>:id</tt> is present. The option is ignored for collection # associations. diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index dd746a4e10..7696ef13c7 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -149,7 +149,7 @@ module ActiveRecord JoinKeys = Struct.new(:key, :foreign_key) # :nodoc: - def join_keys(assoc_klass) + def join_keys(association_klass) JoinKeys.new(foreign_key, active_record_primary_key) end @@ -161,7 +161,16 @@ module ActiveRecord macro end + + def constraints + scope_chain.flatten + end + + def alias_candidate(name) + "#{plural_name}_#{name}" + end end + # Base class for AggregateReflection and AssociationReflection. Objects of # AggregateReflection and AssociationReflection are returned by the Reflection::ClassMethods. # @@ -601,8 +610,8 @@ module ActiveRecord def belongs_to?; true; end - def join_keys(assoc_klass) - key = polymorphic? ? association_primary_key(assoc_klass) : association_primary_key + def join_keys(association_klass) + key = polymorphic? ? association_primary_key(association_klass) : association_primary_key JoinKeys.new(key, foreign_key) end @@ -698,6 +707,11 @@ module ActiveRecord @chain ||= begin a = source_reflection.chain b = through_reflection.chain + + if options[:source_type] + b[0] = PolymorphicReflection.new(b[0], self) + end + chain = a + b chain[0] = self # Use self so we don't lose the information from :source_type chain @@ -745,8 +759,8 @@ module ActiveRecord end end - def join_keys(assoc_klass) - source_reflection.join_keys(assoc_klass) + def join_keys(association_klass) + source_reflection.join_keys(association_klass) end # The macro used by the source association @@ -855,6 +869,12 @@ module ActiveRecord check_validity_of_inverse! end + def constraints + scope_chain = source_reflection.constraints + scope_chain << scope if scope + scope_chain + end + protected def actual_source_reflection # FIXME: this is a horrible name @@ -877,5 +897,81 @@ module ActiveRecord delegate(*delegate_methods, to: :delegate_reflection) end + + class PolymorphicReflection < ThroughReflection # :nodoc: + def initialize(reflection, previous_reflection) + @reflection = reflection + @previous_reflection = previous_reflection + end + + def klass + @reflection.klass + end + + def scope + @reflection.scope + end + + def table_name + @reflection.table_name + end + + def plural_name + @reflection.plural_name + end + + def join_keys(association_klass) + @reflection.join_keys(association_klass) + end + + def type + @reflection.type + end + + def constraints + [source_type_info] + end + + def source_type_info + type = @previous_reflection.foreign_type + source_type = @previous_reflection.options[:source_type] + lambda { |object| where(type => source_type) } + end + end + + class RuntimeReflection < PolymorphicReflection # :nodoc: + attr_accessor :next + + def initialize(reflection, association) + @reflection = reflection + @association = association + end + + def klass + @association.klass + end + + def table_name + klass.table_name + end + + def constraints + @reflection.constraints + end + + def source_type_info + @reflection.source_type_info + end + + def alias_candidate(name) + "#{plural_name}_#{name}_join" + end + + def alias_name + Arel::Table.new(table_name) + end + + def all_includes; yield; end + end end end diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index 2a570e1323..da95920571 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -117,11 +117,12 @@ HEADER if pkcol if pk != 'id' tbl.print %Q(, primary_key: "#{pk}") - elsif pkcol.sql_type == 'bigint' - tbl.print ", id: :bigserial" - elsif pkcol.sql_type == 'uuid' - tbl.print ", id: :uuid" - tbl.print %Q(, default: #{pkcol.default_function.inspect}) + end + pkcolspec = @connection.column_spec_for_primary_key(pkcol) + if pkcolspec + pkcolspec.each do |key, value| + tbl.print ", #{key}: #{value}" + end end else tbl.print ", id: false" |