diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters')
44 files changed, 809 insertions, 581 deletions
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 6b5081b7a9..d99dc9a5db 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -454,7 +454,8 @@ module ActiveRecord end c rescue - disconnect! + remove c + c.disconnect! raise 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 6e631ed9f7..42ad285340 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -201,16 +201,14 @@ module ActiveRecord # isolation level. However, support is disabled for MySQL versions below 5, # because they are affected by a bug[http://bugs.mysql.com/bug.php?id=39170] # which means the isolation level gets persisted outside the transaction. - def transaction(options = {}) - options.assert_valid_keys :requires_new, :joinable, :isolation - - if !options[:requires_new] && current_transaction.joinable? - if options[:isolation] + def transaction(requires_new: nil, isolation: nil, joinable: true) + if !requires_new && current_transaction.joinable? + if isolation raise ActiveRecord::TransactionIsolationError, "cannot set isolation when joining a transaction" end yield else - transaction_manager.within_new_transaction(options) { yield } + transaction_manager.within_new_transaction(isolation: isolation, joinable: joinable) { yield } end rescue ActiveRecord::Rollback # rollbacks are silently swallowed @@ -234,6 +232,10 @@ module ActiveRecord current_transaction.add_record(record) end + def transaction_state + current_transaction.state + end + # Begins the transaction (and turns off auto-committing). def begin_db_transaction() end @@ -286,10 +288,17 @@ module ActiveRecord columns = schema_cache.columns_hash(table_name) binds = fixture.map do |name, value| - [columns[name], value] + type = lookup_cast_type_from_column(columns[name]) + Relation::QueryAttribute.new(name, value, type) end key_list = fixture.keys.map { |name| quote_column_name(name) } - value_list = prepare_binds_for_database(binds).map { |_, value| quote(value) } + value_list = prepare_binds_for_database(binds).map do |value| + begin + quote(value) + rescue TypeError + quote(YAML.dump(value)) + end + end execute "INSERT INTO #{quote_table_name(table_name)} (#{key_list.join(', ')}) VALUES (#{value_list.join(', ')})", 'Fixture Insert' end @@ -375,7 +384,7 @@ module ActiveRecord def binds_from_relation(relation, binds) if relation.is_a?(Relation) && binds.empty? - relation, binds = relation.arel, relation.bind_values + relation, binds = relation.arel, relation.bound_attributes end [relation, binds] end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index 7c1a779577..d2840b9498 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -16,7 +16,7 @@ module ActiveRecord https://github.com/rails/arel/commit/6160bfbda1d1781c3b08a33ec4955f170e95be11 for more information. MSG - value = column.cast_type.type_cast_for_database(value) + value = type_cast_from_column(column, value) end _quote(value) @@ -31,7 +31,7 @@ module ActiveRecord end if column - value = column.cast_type.type_cast_for_database(value) + value = type_cast_from_column(column, value) end _type_cast(value) @@ -40,6 +40,40 @@ module ActiveRecord raise TypeError, "can't cast #{value.class}#{to_type}" end + # If you are having to call this function, you are likely doing something + # wrong. The column does not have sufficient type information if the user + # provided a custom type on the class level either explicitly (via + # `attribute`) or implicitly (via `serialize`, + # `time_zone_aware_attributes`). In almost all cases, the sql type should + # only be used to change quoting behavior, when the primitive to + # represent the type doesn't sufficiently reflect the differences + # (varchar vs binary) for example. The type used to get this primitive + # should have been provided before reaching the connection adapter. + def type_cast_from_column(column, value) # :nodoc: + if column + type = lookup_cast_type_from_column(column) + type.serialize(value) + else + value + end + end + + # See docs for +type_cast_from_column+ + def lookup_cast_type_from_column(column) # :nodoc: + lookup_cast_type(column.sql_type) + end + + def fetch_type_metadata(sql_type) + cast_type = lookup_cast_type(sql_type) + SqlTypeMetadata.new( + sql_type: sql_type, + type: cast_type.type, + limit: cast_type.limit, + precision: cast_type.precision, + scale: cast_type.scale, + ) + end + # Quotes a string, escaping any ' (single quote) and \ (backslash) # characters. def quote_string(s) @@ -68,6 +102,11 @@ module ActiveRecord quote_table_name("#{table}.#{attr}") end + def quote_default_expression(value, column) #:nodoc: + value = lookup_cast_type(column.sql_type).serialize(value) + quote(value) + end + def quoted_true "'t'" end @@ -93,17 +132,16 @@ module ActiveRecord end end - value.to_s(:db) + result = value.to_s(:db) + if value.respond_to?(:usec) && value.usec > 0 + "#{result}.#{sprintf("%06d", value.usec)}" + else + result + end end def prepare_binds_for_database(binds) # :nodoc: - binds.map do |column, value| - if column - column_name = column.name - value = column.cast_type.type_cast_for_database(value) - end - [column_name, value] - end + binds.map(&:value_for_database) end private @@ -125,8 +163,7 @@ module ActiveRecord when Date, Time then "'#{quoted_date(value)}'" when Symbol then "'#{quote_string(value.to_s)}'" when Class then "'#{value}'" - else - "'#{quote_string(YAML.dump(value))}'" + else raise TypeError, "can't quote #{value.class.name}" end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb index db20b60d60..f754df93b6 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -18,6 +18,9 @@ module ActiveRecord "ADD #{accept(o)}" end + delegate :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql, to: :@conn + private :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql + private def visit_AlterTable(o) @@ -28,7 +31,7 @@ module ActiveRecord end def visit_ColumnDefinition(o) - o.sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale) + o.sql_type ||= type_to_sql(o.type, o.limit, o.precision, o.scale) column_sql = "#{quote_column_name(o.name)} #{o.sql_type}" add_column_options!(column_sql, column_options(o)) unless o.type == :primary_key column_sql @@ -70,18 +73,6 @@ module ActiveRecord column_options end - def quote_column_name(name) - @conn.quote_column_name name - end - - def quote_table_name(name) - @conn.quote_table_name name - end - - def type_to_sql(type, limit, precision, scale) - @conn.type_to_sql type.to_sym, limit, precision, scale - end - def add_column_options!(sql, options) sql << " DEFAULT #{quote_default_expression(options[:default], options[:column])}" if options_include_default?(options) # must explicitly check for :null to allow change_column to work on migrations @@ -97,11 +88,6 @@ module ActiveRecord sql end - def quote_default_expression(value, column) - value = type_for_column(column).type_cast_for_database(value) - @conn.quote(value) - end - def options_include_default?(options) options.include?(:default) && !(options[:null] == false && options[:default].nil?) end @@ -118,10 +104,6 @@ module ActiveRecord MSG end end - - def type_for_column(column) - @conn.lookup_cast_type(column.sql_type) - end end 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 7eaa89c9a7..a768ee2d70 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -15,7 +15,7 @@ module ActiveRecord # are typically created by methods in TableDefinition, and added to the # +columns+ attribute of said TableDefinition object, in order to be used # for generating a number of table creation or table changing SQL statements. - class ColumnDefinition < Struct.new(:name, :type, :limit, :precision, :scale, :default, :null, :first, :after, :auto_increment, :primary_key, :sql_type, :cast_type) #:nodoc: + class ColumnDefinition < Struct.new(:name, :type, :limit, :precision, :scale, :default, :null, :first, :after, :auto_increment, :primary_key, :sql_type) #:nodoc: def primary_key? primary_key || type.to_sym == :primary_key @@ -50,6 +50,14 @@ module ActiveRecord options[:primary_key] != default_primary_key end + def defined_for?(options_or_to_table = {}) + if options_or_to_table.is_a?(Hash) + options_or_to_table.all? {|key, value| options[key].to_s == value.to_s } + else + to_table == options_or_to_table.to_s + end + end + private def default_primary_key "id" @@ -134,6 +142,41 @@ module ActiveRecord end end + module ColumnMethods + # Appends a primary key definition to the table definition. + # Can be called multiple times, but this is probably not a good idea. + def primary_key(name, type = :primary_key, **options) + column(name, type, options.merge(primary_key: true)) + end + + # Appends a column or columns of a specified type. + # + # t.string(:goat) + # t.string(:goat, :sheep) + # + # See TableDefinition#column + [ + :bigint, + :binary, + :boolean, + :date, + :datetime, + :decimal, + :float, + :integer, + :string, + :text, + :time, + :timestamp, + ].each do |column_type| + module_eval <<-CODE, __FILE__, __LINE__ + 1 + def #{column_type}(*args, **options) + args.each { |name| column(name, :#{column_type}, options) } + end + CODE + end + end + # Represents the schema of an SQL table in an abstract way. This class # provides methods for manipulating the schema representation. # @@ -155,6 +198,8 @@ module ActiveRecord # The table definitions # The Columns are stored as a ColumnDefinition in the +columns+ attribute. class TableDefinition + include ColumnMethods + # An array of ColumnDefinition objects, representing the column changes # that have been defined. attr_accessor :indexes @@ -173,12 +218,6 @@ module ActiveRecord def columns; @columns_hash.values; end - # Appends a primary key definition to the table definition. - # Can be called multiple times, but this is probably not a good idea. - def primary_key(name, type = :primary_key, options = {}) - column(name, type, options.merge(:primary_key => true)) - end - # Returns a ColumnDefinition for the column with name +name+. def [](name) @columns_hash[name.to_s] @@ -335,14 +374,6 @@ module ActiveRecord @columns_hash.delete name.to_s end - [:string, :text, :integer, :bigint, :float, :decimal, :datetime, :timestamp, :time, :date, :binary, :boolean].each do |column_type| - define_method column_type do |*args| - options = args.extract_options! - column_names = args - column_names.each { |name| column(name, column_type, options) } - end - end - # Adds index options to the indexes hash, keyed by column name # This is primarily used to track indexes that need to be created after the table # @@ -370,7 +401,7 @@ module ActiveRecord # Adds a reference. Optionally adds a +type+ column, if the # +:polymorphic+ option is provided. +references+ and +belongs_to+ - # are acceptable. The reference column will be an +integer+ by default, + # are interchangeable. The reference column will be an +integer+ by default, # the +:type+ option can be used to specify a different type. A foreign # key will be created if the +:foreign_key+ option is passed. # @@ -454,6 +485,7 @@ module ActiveRecord # Available transformations are: # # change_table :table do |t| + # t.primary_key # t.column # t.index # t.rename_index @@ -466,6 +498,7 @@ module ActiveRecord # t.string # t.text # t.integer + # t.bigint # t.float # t.decimal # t.datetime @@ -482,6 +515,8 @@ module ActiveRecord # end # class Table + include ColumnMethods + attr_reader :name def initialize(table_name, base) @@ -500,6 +535,8 @@ module ActiveRecord # Checks to see if a column exists. # + # t.string(:name) unless t.column_exists?(:name, :string) + # # See SchemaStatements#column_exists? def column_exists?(column_name, type = nil, options = {}) @base.column_exists?(name, column_name, type, options) @@ -519,6 +556,10 @@ module ActiveRecord # Checks to see if an index exists. # + # unless t.index_exists?(:branch_id) + # t.index(:branch_id) + # end + # # See SchemaStatements#index_exists? def index_exists?(column_name, options = {}) @base.index_exists?(name, column_name, options) @@ -632,25 +673,24 @@ module ActiveRecord end alias :remove_belongs_to :remove_references - # Adds a column or columns of a specified type. + # Adds a foreign key. # - # t.string(:goat) - # t.string(:goat, :sheep) + # t.foreign_key(:authors) # - # See SchemaStatements#add_column - [:string, :text, :integer, :float, :decimal, :datetime, :timestamp, :time, :date, :binary, :boolean].each do |column_type| - define_method column_type do |*args| - options = args.extract_options! - args.each do |column_name| - @base.add_column(name, column_name, column_type, options) - end - end - end - + # See SchemaStatements#add_foreign_key def foreign_key(*args) # :nodoc: @base.add_foreign_key(name, *args) end + # Checks to see if a foreign key exists. + # + # t.foreign_key(:authors) unless t.foreign_key_exists?(:authors) + # + # See SchemaStatements#foreign_key_exists? + def foreign_key_exists?(*args) # :nodoc: + @base.foreign_key_exists?(name, *args) + end + private def native @base.native_database_types 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 42ea599a74..999cb0ec5a 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb @@ -24,7 +24,7 @@ module ActiveRecord def prepare_column_options(column) spec = {} spec[:name] = column.name.inspect - spec[:type] = column.type.to_s + spec[:type] = schema_type(column) spec[:null] = 'false' unless column.null limit = column.limit || native_database_types[column.type][:limit] @@ -45,10 +45,15 @@ module ActiveRecord private + def schema_type(column) + column.type.to_s + end + def schema_default(column) - default = column.type_cast_from_database(column.default) + type = lookup_cast_type_from_column(column) + default = type.deserialize(column.default) unless default.nil? - column.type_cast_for_schema(default) + type.type_cast_for_schema(default) end end end 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 0f44c332ae..d42f9a894b 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -1,4 +1,6 @@ require 'active_record/migration/join_table' +require 'active_support/core_ext/string/access' +require 'digest' module ActiveRecord module ConnectionAdapters # :nodoc: @@ -380,7 +382,7 @@ module ActiveRecord # it can be helpful to provide these in a migration's +change+ method so it can be reverted. # In that case, +options+ and the block will be used by create_table. def drop_table(table_name, options = {}) - execute "DROP TABLE #{quote_table_name(table_name)}" + execute "DROP TABLE#{' IF EXISTS' if options[:if_exists]} #{quote_table_name(table_name)}" end # Adds a new column to the named table. @@ -660,7 +662,13 @@ module ActiveRecord # # remove_reference(:products, :supplier, polymorphic: true) # + # ====== Remove the reference with a foreign key + # + # remove_reference(:products, :user, index: true, foreign_key: true) + # def remove_reference(table_name, ref_name, options = {}) + remove_foreign_key table_name, ref_name.to_s.pluralize if options[:foreign_key] + remove_column(table_name, "#{ref_name}_id") remove_column(table_name, "#{ref_name}_type") if options[:polymorphic] end @@ -749,21 +757,7 @@ module ActiveRecord def remove_foreign_key(from_table, options_or_to_table = {}) return unless supports_foreign_keys? - if options_or_to_table.is_a?(Hash) - options = options_or_to_table - else - options = { column: foreign_key_column_for(options_or_to_table) } - end - - fk_name_to_delete = options.fetch(:name) do - fk_to_delete = foreign_keys(from_table).detect {|fk| fk.column == options[:column].to_s } - - if fk_to_delete - fk_to_delete.name - else - raise ArgumentError, "Table '#{from_table}' has no foreign key on column '#{options[:column]}'" - end - end + fk_name_to_delete = foreign_key_for!(from_table, options_or_to_table).name at = create_alter_table from_table at.drop_foreign_key fk_name_to_delete @@ -771,6 +765,31 @@ module ActiveRecord execute schema_creation.accept(at) end + # Checks to see if a foreign key exists on a table for a given foreign key definition. + # + # # Check a foreign key exists + # foreign_key_exists?(:accounts, :branches) + # + # # Check a foreign key on a specified column exists + # foreign_key_exists?(:accounts, column: :owner_id) + # + # # Check a foreign key with a custom name exists + # foreign_key_exists?(:accounts, name: "special_fk_name") + # + def foreign_key_exists?(from_table, options_or_to_table = {}) + foreign_key_for(from_table, options_or_to_table).present? + end + + def foreign_key_for(from_table, options_or_to_table = {}) # :nodoc: + return unless supports_foreign_keys? + foreign_keys(from_table).detect {|fk| fk.defined_for? options_or_to_table } + end + + def foreign_key_for!(from_table, options_or_to_table = {}) # :nodoc: + foreign_key_for(from_table, options_or_to_table) or \ + raise ArgumentError, "Table '#{from_table}' has no foreign key for #{options_or_to_table}" + end + def foreign_key_column_for(table_name) # :nodoc: "#{table_name.to_s.singularize}_id" end @@ -832,6 +851,12 @@ module ActiveRecord raise ArgumentError, "Error adding decimal column: precision cannot be empty if scale is specified" end + elsif [:datetime, :time].include?(type) && precision ||= native[:precision] + if (0..6) === precision + column_type_sql << "(#{precision})" + else + raise(ActiveRecordError, "No #{native[:name]} type has precision of #{precision}. The allowed range of precision is from 0 to 6") + end elsif (type != :primary_key) && (limit ||= native.is_a?(Hash) && native[:limit]) column_type_sql << "(#{limit})" end @@ -990,8 +1015,10 @@ module ActiveRecord end def foreign_key_name(table_name, options) # :nodoc: + identifier = "#{table_name}_#{options.fetch(:column)}_fk" + hashed_identifier = Digest::SHA256.hexdigest(identifier).first(10) options.fetch(:name) do - "fk_rails_#{SecureRandom.hex(5)}" + "fk_rails_#{hashed_identifier}" end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb index 7535e9147a..c74f4e8fa5 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb @@ -1,13 +1,10 @@ module ActiveRecord module ConnectionAdapters class TransactionState - attr_reader :parent - VALID_STATES = Set.new([:committed, :rolledback, nil]) def initialize(state = nil) @state = state - @parent = nil end def finalized? @@ -27,7 +24,7 @@ module ActiveRecord end def set_state(state) - if !VALID_STATES.include?(state) + unless VALID_STATES.include?(state) raise ArgumentError, "Invalid transaction state: #{state}" end @state = state @@ -55,11 +52,7 @@ module ActiveRecord end def add_record(record) - if record.has_transactional_callbacks? - records << record - else - record.set_transaction_state(@state) - end + records << record end def rollback @@ -81,6 +74,10 @@ module ActiveRecord @state.set_state(:committed) end + def before_commit_records + records.uniq.each(&:before_committed!) + end + def commit_records ite = records.uniq while record = ite.shift @@ -111,7 +108,6 @@ module ActiveRecord def rollback connection.rollback_to_savepoint(savepoint_name) super - rollback_records end def commit @@ -136,13 +132,11 @@ module ActiveRecord def rollback connection.rollback_db_transaction super - rollback_records end def commit connection.commit_db_transaction super - commit_records end end @@ -159,18 +153,30 @@ module ActiveRecord else SavepointTransaction.new(@connection, "active_record_#{@stack.size}", options) end + @stack.push(transaction) transaction end def commit_transaction - transaction = @stack.pop - transaction.commit - transaction.records.each { |r| current_transaction.add_record(r) } + inner_transaction = @stack.pop + + if current_transaction.joinable? + inner_transaction.commit + inner_transaction.records.each do |r| + r.add_to_transaction + end + else + inner_transaction.before_commit_records + inner_transaction.commit + inner_transaction.commit_records + end end - def rollback_transaction - @stack.pop.rollback + def rollback_transaction(transaction = nil) + transaction ||= @stack.pop + transaction.rollback + transaction.rollback_records end def within_new_transaction(options = {}) @@ -182,12 +188,12 @@ module ActiveRecord ensure unless error if Thread.current.status == 'aborting' - rollback_transaction + rollback_transaction if transaction else begin commit_transaction rescue Exception - transaction.rollback unless transaction.state.completed? + rollback_transaction(transaction) unless transaction.state.completed? raise end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index c941c9f1eb..ae42e8ef8d 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -4,6 +4,7 @@ require 'bigdecimal/util' require 'active_record/type' require 'active_support/core_ext/benchmark' require 'active_record/connection_adapters/schema_cache' +require 'active_record/connection_adapters/sql_type_metadata' require 'active_record/connection_adapters/abstract/schema_dumper' require 'active_record/connection_adapters/abstract/schema_creation' require 'monitor' @@ -114,7 +115,7 @@ module ActiveRecord class BindCollector < Arel::Collectors::Bind def compile(bvs, conn) casted_binds = conn.prepare_binds_for_database(bvs) - super(casted_binds.map { |_, value| conn.quote(value) }) + super(casted_binds.map { |value| conn.quote(value) }) end end @@ -244,6 +245,11 @@ module ActiveRecord false end + # Does this adapter support datetime with precision? + def supports_datetime_with_precision? + false + end + # This is meant to be implemented by the adapters that support extensions def disable_extension(name) end @@ -262,18 +268,6 @@ module ActiveRecord {} end - # QUOTING ================================================== - - # Quote date/time values for use in SQL input. Includes microseconds - # if the value is a Time responding to usec. - def quoted_date(value) #:nodoc: - if value.acts_like?(:time) && value.respond_to?(:usec) - "#{super}.#{sprintf("%06d", value.usec)}" - else - super - end - end - # Returns a bind substitution value given a bind +column+ # NOTE: The column param is currently being used by the sqlserver-adapter def substitute_at(column, _unused = 0) @@ -366,9 +360,18 @@ module ActiveRecord end def case_insensitive_comparison(table, attribute, column, value) - table[attribute].lower.eq(table.lower(value)) + if can_perform_case_insensitive_comparison_for?(column) + table[attribute].lower.eq(table.lower(value)) + else + case_sensitive_comparison(table, attribute, column, value) + end end + def can_perform_case_insensitive_comparison_for?(column) + true + end + private :can_perform_case_insensitive_comparison_for? + def current_savepoint_name current_transaction.savepoint_name end @@ -384,8 +387,8 @@ module ActiveRecord end end - def new_column(name, default, cast_type, sql_type = nil, null = true) - Column.new(name, default, cast_type, sql_type, null) + def new_column(name, default, sql_type_metadata = nil, null = true) + Column.new(name, default, sql_type_metadata, null) end def lookup_cast_type(sql_type) # :nodoc: @@ -399,15 +402,15 @@ module ActiveRecord protected def initialize_type_map(m) # :nodoc: - register_class_with_limit m, %r(boolean)i, Type::Boolean - register_class_with_limit m, %r(char)i, Type::String - register_class_with_limit m, %r(binary)i, Type::Binary - register_class_with_limit m, %r(text)i, Type::Text - register_class_with_limit m, %r(date)i, Type::Date - register_class_with_limit m, %r(time)i, Type::Time - register_class_with_limit m, %r(datetime)i, Type::DateTime - register_class_with_limit m, %r(float)i, Type::Float - register_class_with_limit m, %r(int)i, Type::Integer + register_class_with_limit m, %r(boolean)i, Type::Boolean + register_class_with_limit m, %r(char)i, Type::String + register_class_with_limit m, %r(binary)i, Type::Binary + register_class_with_limit m, %r(text)i, Type::Text + register_class_with_precision m, %r(date)i, Type::Date + register_class_with_precision m, %r(time)i, Type::Time + register_class_with_precision m, %r(datetime)i, Type::DateTime + register_class_with_limit m, %r(float)i, Type::Float + register_class_with_limit m, %r(int)i, Type::Integer m.alias_type %r(blob)i, 'binary' m.alias_type %r(clob)i, 'text' @@ -441,6 +444,13 @@ module ActiveRecord end end + def register_class_with_precision(mapping, key, klass) # :nodoc: + mapping.register_type(key) do |*args| + precision = extract_precision(args.last) + klass.new(precision: precision) + end + end + def extract_scale(sql_type) # :nodoc: case sql_type when /\((\d+)\)/ then 0 @@ -453,7 +463,12 @@ module ActiveRecord end def extract_limit(sql_type) # :nodoc: - $1.to_i if sql_type =~ /\((.*)\)/ + case sql_type + when /^bigint/i + 8 + when /\((.*)\)/ + $1.to_i + end end def translate_exception_class(e, sql) @@ -463,7 +478,6 @@ module ActiveRecord 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 exception 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 e9a3c26c32..9625fcf9b8 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -6,13 +6,31 @@ module ActiveRecord class AbstractMysqlAdapter < AbstractAdapter include Savepoints - class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition - def primary_key(name, type = :primary_key, options = {}) - options[:auto_increment] ||= type == :bigint + module ColumnMethods + def primary_key(name, type = :primary_key, **options) + options[:auto_increment] = true if type == :bigint super end end + class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition + include ColumnMethods + + def new_column_definition(name, type, options) # :nodoc: + column = super + case column.type + when :primary_key + column.type = :integer + column.auto_increment = true + end + column + end + end + + class Table < ActiveRecord::ConnectionAdapters::Table + include ColumnMethods + end + class SchemaCreation < AbstractAdapter::SchemaCreation def visit_AddColumn(o) add_column_position!(super, column_options(o)) @@ -57,15 +75,19 @@ module ActiveRecord end end + def update_table_definition(table_name, base) # :nodoc: + Table.new(table_name, base) + end + def schema_creation 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' + if column.auto_increment? + spec[:id] = ':bigint' if column.bigint? + return if spec.empty? else spec[:id] = column.type.inspect spec.merge!(prepare_column_options(column).delete_if { |key, _| [:name, :type, :null].include?(key) }) @@ -73,14 +95,18 @@ module ActiveRecord spec end + def prepare_column_options(column) + spec = super + spec.delete(:precision) if /time/ === column.sql_type && column.precision == 0 + spec.delete(:limit) if :boolean === column.type + spec + end + class Column < ConnectionAdapters::Column # :nodoc: - attr_reader :collation, :strict, :extra + delegate :strict, :collation, :extra, to: :sql_type_metadata, allow_nil: true - def initialize(name, default, cast_type, sql_type = nil, null = true, collation = nil, strict = false, extra = "") - @strict = strict - @collation = collation - @extra = extra - super(name, default, cast_type, sql_type, null) + def initialize(*) + super assert_valid_default(default) extract_default end @@ -88,7 +114,7 @@ module ActiveRecord def extract_default if blob_or_text_column? @default = null || strict ? nil : '' - elsif missing_default_forged_as_empty_string?(@default) + elsif missing_default_forged_as_empty_string?(default) @default = nil end end @@ -106,11 +132,8 @@ module ActiveRecord collation && !collation.match(/_ci$/) end - def ==(other) - super && - collation == other.collation && - strict == other.strict && - extra == other.extra + def auto_increment? + extra == 'auto_increment' end private @@ -131,9 +154,33 @@ module ActiveRecord raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}" end end + end + + class MysqlTypeMetadata < DelegateClass(SqlTypeMetadata) # :nodoc: + attr_reader :collation, :extra, :strict + + def initialize(type_metadata, collation: "", extra: "", strict: false) + super(type_metadata) + @type_metadata = type_metadata + @collation = collation + @extra = extra + @strict = strict + end + + def ==(other) + other.is_a?(MysqlTypeMetadata) && + attributes_for_hash == other.attributes_for_hash + end + alias eql? == + + def hash + attributes_for_hash.hash + end + + protected def attributes_for_hash - super + [collation, strict, extra] + [self.class, @type_metadata, collation, extra, strict] end end @@ -188,6 +235,16 @@ module ActiveRecord end end + MAX_INDEX_LENGTH_FOR_CHARSETS_OF_4BYTES_MAXLEN = 191 + CHARSETS_OF_4BYTES_MAXLEN = ['utf8mb4', 'utf16', 'utf16le', 'utf32'] + def initialize_schema_migrations_table + if CHARSETS_OF_4BYTES_MAXLEN.include?(charset) + ActiveRecord::SchemaMigration.create_table(MAX_INDEX_LENGTH_FOR_CHARSETS_OF_4BYTES_MAXLEN) + else + ActiveRecord::SchemaMigration.create_table + end + end + # Returns true, since this connection adapter supports migrations. def supports_migrations? true @@ -227,6 +284,10 @@ module ActiveRecord version[0] >= 5 end + def supports_datetime_with_precision? + (version[0] == 5 && version[1] >= 6) || version[0] >= 6 + end + def native_database_types NATIVE_DATABASE_TYPES end @@ -243,8 +304,8 @@ module ActiveRecord raise NotImplementedError end - def new_column(field, default, cast_type, sql_type = nil, null = true, collation = "", extra = "") # :nodoc: - Column.new(field, default, cast_type, sql_type, null, collation, strict_mode?, extra) + def new_column(field, default, sql_type_metadata = nil, null = true) # :nodoc: + Column.new(field, default, sql_type_metadata, null) end # Must return the MySQL error number from the exception, if the exception has an @@ -467,8 +528,8 @@ module ActiveRecord each_hash(result).map do |field| field_name = set_field_encoding(field[:Field]) sql_type = field[:Type] - cast_type = lookup_cast_type(sql_type) - new_column(field_name, field[:Default], cast_type, sql_type, field[:Null] == "YES", field[:Collation], field[:Extra]) + type_metadata = fetch_type_metadata(sql_type, field[:Collation], field[:Extra]) + new_column(field_name, field[:Default], type_metadata, field[:Null] == "YES") end end end @@ -502,7 +563,7 @@ module ActiveRecord end def drop_table(table_name, options = {}) - execute "DROP#{' TEMPORARY' if options[:temporary]} TABLE #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" + execute "DROP#{' TEMPORARY' if options[:temporary]} TABLE#{' IF EXISTS' if options[:if_exists]} #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" end def rename_index(table_name, old_name, new_name) @@ -599,13 +660,6 @@ module ActiveRecord when 0x1000000..0xffffffff; 'longtext' else raise(ActiveRecordError, "No text type has character length #{limit}") end - when 'datetime' - return super unless precision - - case precision - when 0..6; "datetime(#{precision})" - else raise(ActiveRecordError, "No datetime type has precision of #{precision}. The allowed range of precision is from 0 to 6.") - end else super end @@ -694,11 +748,6 @@ module ActiveRecord m.alias_type %r(year)i, 'integer' m.alias_type %r(bit)i, 'binary' - m.register_type(%r(datetime)i) do |sql_type| - precision = extract_precision(sql_type) - MysqlDateTime.new(precision: precision) - end - m.register_type(%r(enum)i) do |sql_type| limit = sql_type[/^enum\((.+)\)/i, 1] .split(',').map{|enum| enum.strip.length - 2}.max @@ -716,6 +765,18 @@ module ActiveRecord end end + def extract_precision(sql_type) + if /time/ === sql_type + super || 0 + else + super + end + end + + def fetch_type_metadata(sql_type, collation = "", extra = "") + MysqlTypeMetadata.new(super(sql_type), collation: collation, extra: extra, strict: strict_mode?) + end + # MySQL is too stupid to create a temporary table for use subquery, so we have # to give it some prompting in the form of a subsubquery. Ugh! def subquery_for(key, select) @@ -790,7 +851,7 @@ module ActiveRecord options = { default: column.default, null: column.null, - auto_increment: column.extra == "auto_increment" + auto_increment: column.auto_increment? } current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'", 'SCHEMA')["Type"] @@ -894,24 +955,8 @@ module ActiveRecord TableDefinition.new(native_database_types, name, temporary, options, as) end - class MysqlDateTime < Type::DateTime # :nodoc: - def type_cast_for_database(value) - if value.acts_like?(:time) && value.respond_to?(:usec) - result = super.to_s(:db) - case precision - when 1..6 - "#{result}.#{sprintf("%0#{precision}d", value.usec / 10 ** (6 - precision))}" - else - result - end - else - super - end - end - end - class MysqlString < Type::String # :nodoc: - def type_cast_for_database(value) + def serialize(value) case value when true then "1" when false then "0" @@ -929,6 +974,9 @@ module ActiveRecord end end end + + ActiveRecord::Type.register(:string, MysqlString, adapter: :mysql) + ActiveRecord::Type.register(:string, MysqlString, adapter: :mysql2) end end end diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb index e74de60a83..a67127bd71 100644 --- a/activerecord/lib/active_record/connection_adapters/column.rb +++ b/activerecord/lib/active_record/connection_adapters/column.rb @@ -12,34 +12,30 @@ module ActiveRecord ISO_DATETIME = /\A(\d{4})-(\d\d)-(\d\d) (\d\d):(\d\d):(\d\d)(\.\d+)?\z/ end - attr_reader :name, :cast_type, :null, :sql_type, :default, :default_function + attr_reader :name, :null, :sql_type_metadata, :default, :default_function - delegate :type, :precision, :scale, :limit, :klass, :accessor, - :text?, :number?, :binary?, :changed?, - :type_cast_from_user, :type_cast_from_database, :type_cast_for_database, - :type_cast_for_schema, - to: :cast_type + delegate :precision, :scale, :limit, :type, :sql_type, to: :sql_type_metadata, allow_nil: true # Instantiates a new column in the table. # # +name+ is the column's name, such as <tt>supplier_id</tt> in <tt>supplier_id int(11)</tt>. # +default+ is the type-casted default value, such as +new+ in <tt>sales_stage varchar(20) default 'new'</tt>. - # +cast_type+ is the object used for type casting and type information. - # +sql_type+ is used to extract the column's length, if necessary. For example +60+ in - # <tt>company_name varchar(60)</tt>. - # It will be mapped to one of the standard Rails SQL types in the <tt>type</tt> attribute. + # +sql_type_metadata+ is various information about the type of the column # +null+ determines if this column allows +NULL+ values. - def initialize(name, default, cast_type, sql_type = nil, null = true, default_function = nil) - @name = name - @cast_type = cast_type - @sql_type = sql_type - @null = null - @default = default + def initialize(name, default, sql_type_metadata = nil, null = true, default_function = nil) + @name = name + @sql_type_metadata = sql_type_metadata + @null = null + @default = default @default_function = default_function end def has_default? - !default.nil? + !default.nil? || default_function + end + + def bigint? + /bigint/ === sql_type end # Returns the human name of the column name. @@ -50,19 +46,9 @@ module ActiveRecord Base.human_attribute_name(@name) end - def with_type(type) - dup.tap do |clone| - clone.instance_variable_set('@cast_type', type) - end - end - def ==(other) - other.name == name && - other.default == default && - other.cast_type == cast_type && - other.sql_type == sql_type && - other.null == null && - other.default_function == default_function + other.is_a?(Column) && + attributes_for_hash == other.attributes_for_hash end alias :eql? :== @@ -70,16 +56,16 @@ module ActiveRecord attributes_for_hash.hash end - private + protected def attributes_for_hash - [self.class, name, default, cast_type, sql_type, null, default_function] + [self.class, name, default, sql_type_metadata, null, default_function] end end class NullColumn < Column def initialize(name) - super name, nil, Type::Value.new + super(name, nil) 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 75f244b3f3..21631be25c 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -37,15 +37,6 @@ module ActiveRecord configure_connection end - MAX_INDEX_LENGTH_FOR_UTF8MB4 = 191 - def initialize_schema_migrations_table - if @config[:encoding] == 'utf8mb4' - ActiveRecord::SchemaMigration.create_table(MAX_INDEX_LENGTH_FOR_UTF8MB4) - else - ActiveRecord::SchemaMigration.create_table - end - end - def supports_explain? true end diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index 23d8389abb..64985ee933 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -328,8 +328,8 @@ module ActiveRecord def initialize_type_map(m) # :nodoc: super - m.register_type %r(datetime)i, Fields::DateTime.new - m.register_type %r(time)i, Fields::Time.new + register_class_with_precision m, %r(datetime)i, Fields::DateTime + register_class_with_precision m, %r(time)i, Fields::Time end def exec_without_stmt(sql, name = 'SQL') # :nodoc: @@ -395,11 +395,9 @@ module ActiveRecord def exec_stmt(sql, name, binds) cache = {} - type_casted_binds = binds.map { |col, val| - [col, type_cast(val, col)] - } + type_casted_binds = binds.map { |attr| type_cast(attr.value_for_database) } - log(sql, name, type_casted_binds) do + log(sql, name, binds) do if binds.empty? stmt = @connection.prepare(sql) else @@ -410,7 +408,7 @@ module ActiveRecord end begin - stmt.execute(*type_casted_binds.map { |_, val| val }) + stmt.execute(*type_casted_binds) rescue Mysql::Error => e # Older versions of MySQL leave the prepared statement in a bad # place when an error occurs. To support older MySQL versions, we diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb index acb1278499..be13ead120 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb @@ -2,21 +2,13 @@ module ActiveRecord module ConnectionAdapters # PostgreSQL-specific extensions to column definitions in a table. class PostgreSQLColumn < Column #:nodoc: - attr_reader :array + delegate :array, :oid, :fmod, to: :sql_type_metadata alias :array? :array - def initialize(name, default, cast_type, sql_type = nil, null = true, default_function = nil) - if sql_type =~ /\[\]$/ - @array = true - sql_type = sql_type[0..sql_type.length - 3] - else - @array = false - end - super - end - def serial? - default_function && default_function =~ /\Anextval\(.*\)\z/ + return unless default_function + + %r{\Anextval\('(?<table_name>.+)_#{name}_seq'::regclass\)\z} === default_function end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb index d28a2b4fa0..92349e2f9b 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb @@ -1,25 +1,19 @@ -require 'active_record/connection_adapters/postgresql/oid/infinity' - require 'active_record/connection_adapters/postgresql/oid/array' require 'active_record/connection_adapters/postgresql/oid/bit' require 'active_record/connection_adapters/postgresql/oid/bit_varying' require 'active_record/connection_adapters/postgresql/oid/bytea' require 'active_record/connection_adapters/postgresql/oid/cidr' -require 'active_record/connection_adapters/postgresql/oid/date' require 'active_record/connection_adapters/postgresql/oid/date_time' require 'active_record/connection_adapters/postgresql/oid/decimal' require 'active_record/connection_adapters/postgresql/oid/enum' -require 'active_record/connection_adapters/postgresql/oid/float' require 'active_record/connection_adapters/postgresql/oid/hstore' require 'active_record/connection_adapters/postgresql/oid/inet' -require 'active_record/connection_adapters/postgresql/oid/integer' require 'active_record/connection_adapters/postgresql/oid/json' require 'active_record/connection_adapters/postgresql/oid/jsonb' require 'active_record/connection_adapters/postgresql/oid/money' require 'active_record/connection_adapters/postgresql/oid/point' require 'active_record/connection_adapters/postgresql/oid/range' require 'active_record/connection_adapters/postgresql/oid/specialized_string' -require 'active_record/connection_adapters/postgresql/oid/time' require 'active_record/connection_adapters/postgresql/oid/uuid' require 'active_record/connection_adapters/postgresql/oid/vector' require 'active_record/connection_adapters/postgresql/oid/xml' diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb index c203e6c604..fb4e0de2a8 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb @@ -3,7 +3,7 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Array < Type::Value # :nodoc: - include Type::Mutable + include Type::Helpers::Mutable # Loads pg_array_parser if available. String parsing can be # performed quicker by a native extension, which will not create @@ -18,29 +18,29 @@ module ActiveRecord end attr_reader :subtype, :delimiter - delegate :type, to: :subtype + delegate :type, :user_input_in_time_zone, to: :subtype def initialize(subtype, delimiter = ',') @subtype = subtype @delimiter = delimiter end - def type_cast_from_database(value) + def deserialize(value) if value.is_a?(::String) - type_cast_array(parse_pg_array(value), :type_cast_from_database) + type_cast_array(parse_pg_array(value), :deserialize) else super end end - def type_cast_from_user(value) + def cast(value) if value.is_a?(::String) value = parse_pg_array(value) end - type_cast_array(value, :type_cast_from_user) + type_cast_array(value, :cast) end - def type_cast_for_database(value) + def serialize(value) if value.is_a?(::Array) cast_value_for_database(value) else @@ -48,6 +48,12 @@ module ActiveRecord end end + def ==(other) + other.is_a?(Array) && + subtype == other.subtype && + delimiter == other.delimiter + end + private def type_cast_array(value, method) @@ -63,7 +69,7 @@ module ActiveRecord casted_values = value.map { |item| cast_value_for_database(item) } "{#{casted_values.join(delimiter)}}" else - quote_and_escape(subtype.type_cast_for_database(value)) + quote_and_escape(subtype.serialize(value)) end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb index 1dbb40ca1d..ea0fa2517f 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb @@ -7,7 +7,7 @@ module ActiveRecord :bit end - def type_cast(value) + def cast(value) if ::String === value case value when /^0x/i @@ -20,7 +20,7 @@ module ActiveRecord end end - def type_cast_for_database(value) + def serialize(value) Data.new(super) if value end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb index 6bd1b8ecae..8f9d6e7f9b 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb @@ -3,7 +3,7 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Bytea < Type::Binary # :nodoc: - def type_cast_from_database(value) + def deserialize(value) return if value.nil? return value.to_s if value.is_a?(Type::Binary::Data) PGconn.unescape_bytea(super) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb index 222f10fa8f..eeccb09bdf 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb @@ -18,7 +18,7 @@ module ActiveRecord end end - def type_cast_for_database(value) + def serialize(value) if IPAddr === value "#{value}/#{value.instance_variable_get(:@mask_addr).to_s(2).count('1')}" else diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/date.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/date.rb deleted file mode 100644 index 1d8d264530..0000000000 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/date.rb +++ /dev/null @@ -1,11 +0,0 @@ -module ActiveRecord - module ConnectionAdapters - module PostgreSQL - module OID # :nodoc: - class Date < Type::Date # :nodoc: - include Infinity - end - end - end - end -end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb index b9e7894e5c..2c04c46131 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb @@ -3,8 +3,6 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class DateTime < Type::DateTime # :nodoc: - include Infinity - def cast_value(value) if value.is_a?(::String) case value diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb index 77d5038efd..b3b610a5f6 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb @@ -7,7 +7,7 @@ module ActiveRecord :enum end - def type_cast(value) + def cast(value) value.to_s end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb deleted file mode 100644 index 78ef94b912..0000000000 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb +++ /dev/null @@ -1,21 +0,0 @@ -module ActiveRecord - module ConnectionAdapters - module PostgreSQL - module OID # :nodoc: - class Float < Type::Float # :nodoc: - include Infinity - - def cast_value(value) - case value - when ::Float then value - when 'Infinity' then ::Float::INFINITY - when '-Infinity' then -::Float::INFINITY - when 'NaN' then ::Float::NAN - else value.to_f - end - end - end - end - end - end -end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb index be4525c94f..9270fc9f21 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb @@ -3,13 +3,13 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Hstore < Type::Value # :nodoc: - include Type::Mutable + include Type::Helpers::Mutable def type :hstore end - def type_cast_from_database(value) + def deserialize(value) if value.is_a?(::String) ::Hash[value.scan(HstorePair).map { |k, v| v = v.upcase == 'NULL' ? nil : v.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') @@ -21,7 +21,7 @@ module ActiveRecord end end - def type_cast_for_database(value) + def serialize(value) if value.is_a?(::Hash) value.map { |k, v| "#{escape_hstore(k)}=>#{escape_hstore(v)}" }.join(', ') else diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/infinity.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/infinity.rb deleted file mode 100644 index e47780399a..0000000000 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/infinity.rb +++ /dev/null @@ -1,13 +0,0 @@ -module ActiveRecord - module ConnectionAdapters - module PostgreSQL - module OID # :nodoc: - module Infinity # :nodoc: - def infinity(options = {}) - options[:negative] ? -::Float::INFINITY : ::Float::INFINITY - end - end - end - end - end -end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/integer.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/integer.rb deleted file mode 100644 index 59abdc0009..0000000000 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/integer.rb +++ /dev/null @@ -1,11 +0,0 @@ -module ActiveRecord - module ConnectionAdapters - module PostgreSQL - module OID # :nodoc: - class Integer < Type::Integer # :nodoc: - include Infinity - end - end - end - end -end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb index e12ddd9901..8e1256baad 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb @@ -3,25 +3,25 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Json < Type::Value # :nodoc: - include Type::Mutable + include Type::Helpers::Mutable def type :json end - def type_cast_from_database(value) + def deserialize(value) if value.is_a?(::String) - ::ActiveSupport::JSON.decode(value) + ::ActiveSupport::JSON.decode(value) rescue nil else - super + value end end - def type_cast_for_database(value) + def serialize(value) if value.is_a?(::Array) || value.is_a?(::Hash) ::ActiveSupport::JSON.encode(value) else - super + value end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb index 380c50fc14..afc9383f91 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb @@ -13,7 +13,7 @@ module ActiveRecord # the comparison here. Therefore, we need to parse and re-dump the # raw value here to ensure the insignificant whitespaces are # consistent with our encoder's output. - raw_old_value = type_cast_for_database(type_cast_from_database(raw_old_value)) + raw_old_value = serialize(deserialize(raw_old_value)) super(raw_old_value, new_value) end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb index df890c2ed6..2163674019 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb @@ -3,8 +3,6 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Money < Type::Decimal # :nodoc: - include Infinity - class_attribute :precision def type diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb index bac8b01d6b..bf565bcf47 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb @@ -3,19 +3,19 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Point < Type::Value # :nodoc: - include Type::Mutable + include Type::Helpers::Mutable def type :point end - def type_cast(value) + def cast(value) case value when ::String if value[0] == '(' && value[-1] == ')' value = value[1...-1] end - type_cast(value.split(',')) + cast(value.split(',')) when ::Array value.map { |v| Float(v) } else @@ -23,7 +23,7 @@ module ActiveRecord end end - def type_cast_for_database(value) + def serialize(value) if value.is_a?(::Array) "(#{number_for_point(value[0])},#{number_for_point(value[1])})" else diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb index 3adfb8b9d8..fc201f8fb9 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb @@ -7,7 +7,7 @@ module ActiveRecord class Range < Type::Value # :nodoc: attr_reader :subtype, :type - def initialize(subtype, type) + def initialize(subtype, type = :range) @subtype = subtype @type = type end @@ -30,7 +30,7 @@ module ActiveRecord ::Range.new(from, to, extracted[:exclude_end]) end - def type_cast_for_database(value) + def serialize(value) if value.is_a?(::Range) from = type_cast_single_for_database(value.begin) to = type_cast_single_for_database(value.end) @@ -40,26 +40,42 @@ module ActiveRecord end end + def ==(other) + other.is_a?(Range) && + other.subtype == subtype && + other.type == type + end + private def type_cast_single(value) - infinity?(value) ? value : @subtype.type_cast_from_database(value) + infinity?(value) ? value : @subtype.deserialize(value) end def type_cast_single_for_database(value) - infinity?(value) ? '' : @subtype.type_cast_for_database(value) + infinity?(value) ? '' : @subtype.serialize(value) end def extract_bounds(value) from, to = value[1..-2].split(',') { - from: (value[1] == ',' || from == '-infinity') ? @subtype.infinity(negative: true) : from, - to: (value[-2] == ',' || to == 'infinity') ? @subtype.infinity : to, + from: (value[1] == ',' || from == '-infinity') ? infinity(negative: true) : from, + to: (value[-2] == ',' || to == 'infinity') ? infinity : to, exclude_start: (value[0] == '('), exclude_end: (value[-1] == ')') } end + def infinity(negative: false) + if subtype.respond_to?(:infinity) + subtype.infinity(negative: negative) + elsif negative + -::Float::INFINITY + else + ::Float::INFINITY + end + end + def infinity?(value) value.respond_to?(:infinite?) && value.infinite? end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb index b2a42e9ebb..2d2fede4e8 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb @@ -8,10 +8,6 @@ module ActiveRecord def initialize(type) @type = type end - - def text? - false - end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/time.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/time.rb deleted file mode 100644 index 8f0246eddb..0000000000 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/time.rb +++ /dev/null @@ -1,11 +0,0 @@ -module ActiveRecord - module ConnectionAdapters - module PostgreSQL - module OID # :nodoc: - class Time < Type::Time # :nodoc: - include Infinity - end - end - end - end -end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb index 97b4fd3d08..5e839228e9 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb @@ -5,13 +5,13 @@ module ActiveRecord class Uuid < Type::Value # :nodoc: ACCEPTABLE_UUID = %r{\A\{?([a-fA-F0-9]{4}-?){8}\}?\z}x - alias_method :type_cast_for_database, :type_cast_from_database + alias_method :serialize, :deserialize def type :uuid end - def type_cast(value) + def cast(value) value.to_s[ACCEPTABLE_UUID, 0] end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb index de4187b028..b26e876b54 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb @@ -16,7 +16,7 @@ module ActiveRecord # FIXME: this should probably split on +delim+ and use +subtype+ # to cast the values. Unfortunately, the current Rails behavior # is to just return the string. - def type_cast(value) + def cast(value) value end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb index 334af7c598..d40d837cee 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb @@ -7,7 +7,7 @@ module ActiveRecord :xml end - def type_cast_for_database(value) + def serialize(value) return unless value Data.new(super) end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb index 9de9e2c7dc..b7755c4593 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb @@ -52,15 +52,21 @@ module ActiveRecord end # Does not quote function default values for UUID columns - def quote_default_value(value, column) #:nodoc: + def quote_default_expression(value, column) #:nodoc: if column.type == :uuid && value =~ /\(\)/ value - else - value = column.cast_type.type_cast_for_database(value) + elsif column.respond_to?(:array?) + value = type_cast_from_column(column, value) quote(value) + else + super end end + def lookup_cast_type_from_column(column) # :nodoc: + type_map.lookup(column.oid, column.fmod, column.sql_type) + end + private def _quote(value) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb b/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb index 52b307c432..44a7338bf5 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb @@ -8,20 +8,39 @@ module ActiveRecord def disable_referential_integrity # :nodoc: if supports_disable_referential_integrity? + original_exception = nil + begin - execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";")) - rescue - execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER USER" }.join(";")) + transaction(requires_new: true) do + execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";")) + end + rescue ActiveRecord::ActiveRecordError => e + original_exception = e end - end - yield - ensure - if supports_disable_referential_integrity? + + begin + yield + rescue ActiveRecord::InvalidForeignKey => e + warn <<-WARNING +WARNING: Rails was not able to disable referential integrity. + +This is most likely caused due to missing permissions. +Rails needs superuser privileges to disable referential integrity. + + cause: #{original_exception.try(:message)} + + WARNING + raise e + end + begin - execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";")) - rescue - execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER USER" }.join(";")) + transaction(requires_new: true) do + execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";")) + end + rescue ActiveRecord::ActiveRecordError end + else + yield end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb index a9522e152f..022dbdfa27 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb @@ -2,90 +2,129 @@ module ActiveRecord module ConnectionAdapters module PostgreSQL module ColumnMethods - def xml(*args) - options = args.extract_options! - column(args[0], :xml, options) + # Defines the primary key field. + # Use of the native PostgreSQL UUID type is supported, and can be used + # by defining your tables as such: + # + # create_table :stuffs, id: :uuid do |t| + # t.string :content + # t.timestamps + # end + # + # By default, this will use the +uuid_generate_v4()+ function from the + # +uuid-ossp+ extension, which MUST be enabled on your database. To enable + # the +uuid-ossp+ extension, you can use the +enable_extension+ method in your + # migrations. To use a UUID primary key without +uuid-ossp+ enabled, you can + # set the +:default+ option to +nil+: + # + # create_table :stuffs, id: false do |t| + # t.primary_key :id, :uuid, default: nil + # t.uuid :foo_id + # t.timestamps + # end + # + # You may also pass a different UUID generation function from +uuid-ossp+ + # or another library. + # + # Note that setting the UUID primary key default value to +nil+ will + # require you to assure that you always provide a UUID value before saving + # a record (as primary keys cannot be +nil+). This might be done via the + # +SecureRandom.uuid+ method and a +before_save+ callback, for instance. + def primary_key(name, type = :primary_key, **options) + options[:default] = options.fetch(:default, 'uuid_generate_v4()') if type == :uuid + super + end + + def bigserial(*args, **options) + args.each { |name| column(name, :bigserial, options) } + end + + def bit(*args, **options) + args.each { |name| column(name, :bit, options) } end - def tsvector(*args) - options = args.extract_options! - column(args[0], :tsvector, options) + def bit_varying(*args, **options) + args.each { |name| column(name, :bit_varying, options) } end - def int4range(name, options = {}) - column(name, :int4range, options) + def cidr(*args, **options) + args.each { |name| column(name, :cidr, options) } end - def int8range(name, options = {}) - column(name, :int8range, options) + def citext(*args, **options) + args.each { |name| column(name, :citext, options) } end - def tsrange(name, options = {}) - column(name, :tsrange, options) + def daterange(*args, **options) + args.each { |name| column(name, :daterange, options) } end - def tstzrange(name, options = {}) - column(name, :tstzrange, options) + def hstore(*args, **options) + args.each { |name| column(name, :hstore, options) } end - def numrange(name, options = {}) - column(name, :numrange, options) + def inet(*args, **options) + args.each { |name| column(name, :inet, options) } end - def daterange(name, options = {}) - column(name, :daterange, options) + def int4range(*args, **options) + args.each { |name| column(name, :int4range, options) } end - def hstore(name, options = {}) - column(name, :hstore, options) + def int8range(*args, **options) + args.each { |name| column(name, :int8range, options) } end - def ltree(name, options = {}) - column(name, :ltree, options) + def json(*args, **options) + args.each { |name| column(name, :json, options) } end - def inet(name, options = {}) - column(name, :inet, options) + def jsonb(*args, **options) + args.each { |name| column(name, :jsonb, options) } end - def cidr(name, options = {}) - column(name, :cidr, options) + def ltree(*args, **options) + args.each { |name| column(name, :ltree, options) } end - def macaddr(name, options = {}) - column(name, :macaddr, options) + def macaddr(*args, **options) + args.each { |name| column(name, :macaddr, options) } end - def uuid(name, options = {}) - column(name, :uuid, options) + def money(*args, **options) + args.each { |name| column(name, :money, options) } end - def json(name, options = {}) - column(name, :json, options) + def numrange(*args, **options) + args.each { |name| column(name, :numrange, options) } end - def jsonb(name, options = {}) - column(name, :jsonb, options) + def point(*args, **options) + args.each { |name| column(name, :point, options) } end - def citext(name, options = {}) - column(name, :citext, options) + def serial(*args, **options) + args.each { |name| column(name, :serial, options) } end - def point(name, options = {}) - column(name, :point, options) + def tsrange(*args, **options) + args.each { |name| column(name, :tsrange, options) } end - def bit(name, options) - column(name, :bit, options) + def tstzrange(*args, **options) + args.each { |name| column(name, :tstzrange, options) } end - def bit_varying(name, options) - column(name, :bit_varying, options) + def tsvector(*args, **options) + args.each { |name| column(name, :tsvector, options) } end - def money(name, options) - column(name, :money, options) + def uuid(*args, **options) + args.each { |name| column(name, :uuid, options) } + end + + def xml(*args, **options) + args.each { |name| column(name, :xml, options) } end end @@ -96,39 +135,6 @@ module ActiveRecord class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition include ColumnMethods - # Defines the primary key field. - # Use of the native PostgreSQL UUID type is supported, and can be used - # by defining your tables as such: - # - # create_table :stuffs, id: :uuid do |t| - # t.string :content - # t.timestamps - # end - # - # By default, this will use the +uuid_generate_v4()+ function from the - # +uuid-ossp+ extension, which MUST be enabled on your database. To enable - # the +uuid-ossp+ extension, you can use the +enable_extension+ method in your - # migrations. To use a UUID primary key without +uuid-ossp+ enabled, you can - # set the +:default+ option to +nil+: - # - # create_table :stuffs, id: false do |t| - # t.primary_key :id, :uuid, default: nil - # t.uuid :foo_id - # t.timestamps - # end - # - # You may also pass a different UUID generation function from +uuid-ossp+ - # or another library. - # - # Note that setting the UUID primary key default value to +nil+ will - # require you to assure that you always provide a UUID value before saving - # a record (as primary keys cannot be +nil+). This might be done via the - # +SecureRandom.uuid+ method and a +before_save+ callback, for instance. - def primary_key(name, type = :primary_key, options = {}) - options[:default] = options.fetch(:default, 'uuid_generate_v4()') if type == :uuid - super - end - def new_column_definition(name, type, options) # :nodoc: column = super column.array = options[:array] diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index a90adcf4aa..eeb141dd1e 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -4,34 +4,10 @@ module ActiveRecord class SchemaCreation < AbstractAdapter::SchemaCreation private - def column_options(o) - column_options = super - column_options[:array] = o.array - column_options - end - - def add_column_options!(sql, options) - if options[:array] - sql << '[]' - end + def visit_ColumnDefinition(o) + o.sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale, o.array) super end - - def quote_default_expression(value, column) - if column.type == :uuid && value =~ /\(\)/ - value - else - super - end - end - - def type_for_column(column) - if column.array - @conn.lookup_cast_type("#{column.sql_type}[]") - else - super - end - end end module SchemaStatements @@ -112,7 +88,7 @@ module ActiveRecord end def drop_table(table_name, options = {}) - execute "DROP TABLE #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" + execute "DROP TABLE#{' IF EXISTS' if options[:if_exists]} #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" end # Returns true if schema exists. @@ -183,15 +159,17 @@ module ActiveRecord def columns(table_name) # Limit, precision, and scale are all handled by the superclass. column_definitions(table_name).map do |column_name, type, default, notnull, oid, fmod| - oid = get_oid_type(oid.to_i, fmod.to_i, column_name, type) - default_value = extract_value_from_default(oid, default) + oid = oid.to_i + fmod = fmod.to_i + type_metadata = fetch_type_metadata(column_name, type, oid, fmod) + default_value = extract_value_from_default(default) default_function = extract_default_function(default_value, default) - new_column(column_name, default_value, oid, type, notnull == 'f', default_function) + new_column(column_name, default_value, type_metadata, notnull == 'f', default_function) end end - def new_column(name, default, cast_type, sql_type = nil, null = true, default_function = nil) # :nodoc: - PostgreSQLColumn.new(name, default, cast_type, sql_type, null, default_function) + def new_column(name, default, sql_type_metadata = nil, null = true, default_function = nil) # :nodoc: + PostgreSQLColumn.new(name, default, sql_type_metadata, null, default_function) end # Returns the current database name. @@ -428,12 +406,14 @@ module ActiveRecord def change_column(table_name, column_name, type, options = {}) clear_cache! quoted_table_name = quote_table_name(table_name) - sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale]) - sql_type << "[]" if options[:array] - sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{sql_type}" - sql << " USING #{options[:using]}" if options[:using] - if options[:cast_as] - sql << " USING CAST(#{quote_column_name(column_name)} AS #{type_to_sql(options[:cast_as], options[:limit], options[:precision], options[:scale])})" + quoted_column_name = quote_column_name(column_name) + sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale], options[:array]) + sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}" + if options[:using] + sql << " USING #{options[:using]}" + elsif options[:cast_as] + cast_as_type = type_to_sql(options[:cast_as], options[:limit], options[:precision], options[:scale], options[:array]) + sql << " USING CAST(#{quoted_column_name} AS #{cast_as_type})" end execute sql @@ -453,7 +433,7 @@ module ActiveRecord # cast the default to the columns type, which leaves us with a default like "default NULL::character varying". execute alter_column_query % "DROP DEFAULT" else - execute alter_column_query % "SET DEFAULT #{quote_default_value(default, column)}" + execute alter_column_query % "SET DEFAULT #{quote_default_expression(default, column)}" end end @@ -461,7 +441,7 @@ module ActiveRecord clear_cache! unless null || default.nil? column = column_for(table_name, column_name) - execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_value(default, column)} WHERE #{quote_column_name(column_name)} IS NULL") if column + execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_expression(default, column)} WHERE #{quote_column_name(column_name)} IS NULL") if column end execute("ALTER TABLE #{quote_table_name(table_name)} ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL") end @@ -530,41 +510,35 @@ module ActiveRecord end # Maps logical Rails types to PostgreSQL-specific data types. - def type_to_sql(type, limit = nil, precision = nil, scale = nil) - case type.to_s + def type_to_sql(type, limit = nil, precision = nil, scale = nil, array = nil) + sql = case type.to_s when 'binary' # PostgreSQL doesn't support limits on binary (bytea) columns. - # The hard limit is 1Gb, because of a 32-bit size field, and TOAST. + # The hard limit is 1GB, because of a 32-bit size field, and TOAST. case limit when nil, 0..0x3fffffff; super(type) else raise(ActiveRecordError, "No binary type has byte size #{limit}.") end when 'text' # PostgreSQL doesn't support limits on text columns. - # The hard limit is 1Gb, according to section 8.3 in the manual. + # The hard limit is 1GB, according to section 8.3 in the manual. case limit when nil, 0..0x3fffffff; super(type) else raise(ActiveRecordError, "The limit on text can be at most 1GB - 1byte.") end when 'integer' - return 'integer' unless limit - case limit - when 1, 2; 'smallint' - when 3, 4; 'integer' - when 5..8; 'bigint' - else raise(ActiveRecordError, "No integer type has byte size #{limit}. Use a numeric with precision 0 instead.") - end - when 'datetime' - return super unless precision - - case precision - when 0..6; "timestamp(#{precision})" - else raise(ActiveRecordError, "No timestamp type has precision of #{precision}. The allowed range of precision is from 0 to 6") + when 1, 2; 'smallint' + when nil, 3, 4; 'integer' + when 5..8; 'bigint' + else raise(ActiveRecordError, "No integer type has byte size #{limit}. Use a numeric with precision 0 instead.") end else - super + super(type, limit, precision, scale) end + + sql << '[]' if array && type != :primary_key + sql end # PostgreSQL requires the ORDER BY columns in the select list for distinct queries, and @@ -580,6 +554,18 @@ module ActiveRecord [super, *order_columns].join(', ') end + + def fetch_type_metadata(column_name, sql_type, oid, fmod) + cast_type = get_oid_type(oid, fmod, column_name, sql_type) + simple_type = SqlTypeMetadata.new( + sql_type: sql_type, + type: cast_type.type, + limit: cast_type.limit, + precision: cast_type.precision, + scale: cast_type.scale, + ) + PostgreSQLTypeMetadata.new(simple_type, oid: oid, fmod: fmod) + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb b/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb new file mode 100644 index 0000000000..58715978f7 --- /dev/null +++ b/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb @@ -0,0 +1,35 @@ +module ActiveRecord + module ConnectionAdapters + class PostgreSQLTypeMetadata < DelegateClass(SqlTypeMetadata) + attr_reader :oid, :fmod, :array + + def initialize(type_metadata, oid: nil, fmod: nil) + super(type_metadata) + @type_metadata = type_metadata + @oid = oid + @fmod = fmod + @array = /\[\]$/ === type_metadata.sql_type + end + + def sql_type + super.gsub(/\[\]$/, "") + end + + def ==(other) + other.is_a?(PostgreSQLTypeMetadata) && + attributes_for_hash == other.attributes_for_hash + end + alias eql? == + + def hash + attributes_for_hash.hash + end + + protected + + def attributes_for_hash + [self.class, @type_metadata, oid, fmod] + end + end + 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 f4f9747359..92f470ae70 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -1,14 +1,14 @@ -require 'active_record/connection_adapters/abstract_adapter' -require 'active_record/connection_adapters/statement_pool' - -require 'active_record/connection_adapters/postgresql/utils' -require 'active_record/connection_adapters/postgresql/column' -require 'active_record/connection_adapters/postgresql/oid' -require 'active_record/connection_adapters/postgresql/quoting' -require 'active_record/connection_adapters/postgresql/referential_integrity' -require 'active_record/connection_adapters/postgresql/schema_definitions' -require 'active_record/connection_adapters/postgresql/schema_statements' -require 'active_record/connection_adapters/postgresql/database_statements' +require "active_record/connection_adapters/abstract_adapter" +require "active_record/connection_adapters/postgresql/column" +require "active_record/connection_adapters/postgresql/database_statements" +require "active_record/connection_adapters/postgresql/oid" +require "active_record/connection_adapters/postgresql/quoting" +require "active_record/connection_adapters/postgresql/referential_integrity" +require "active_record/connection_adapters/postgresql/schema_definitions" +require "active_record/connection_adapters/postgresql/schema_statements" +require "active_record/connection_adapters/postgresql/type_metadata" +require "active_record/connection_adapters/postgresql/utils" +require "active_record/connection_adapters/statement_pool" require 'arel/visitors/bind_visitor' @@ -128,7 +128,7 @@ module ActiveRecord def column_spec_for_primary_key(column) spec = {} if column.serial? - return unless column.sql_type == 'bigint' + return unless column.bigint? spec[:id] = ':bigserial' elsif column.type == :uuid spec[:id] = ':uuid' @@ -145,7 +145,6 @@ module ActiveRecord def prepare_column_options(column) # :nodoc: spec = super spec[:array] = 'true' if column.array? - spec[:default] = "\"#{column.default_function}\"" if column.default_function spec end @@ -154,6 +153,26 @@ module ActiveRecord super + [:array] end + def schema_type(column) + return super unless column.serial? + + if column.bigint? + 'bigserial' + else + 'serial' + end + end + private :schema_type + + def schema_default(column) + if column.default_function + column.default_function.inspect unless column.serial? + else + super + end + end + private :schema_default + # Returns +true+, since this connection adapter supports prepared statement # caching. def supports_statement_cache? @@ -180,6 +199,10 @@ module ActiveRecord true end + def supports_datetime_with_precision? + true + end + def index_algorithms { concurrently: 'CONCURRENTLY' } end @@ -255,6 +278,8 @@ module ActiveRecord @table_alias_length = nil connect + add_pg_decoders + @statements = StatementPool.new @connection, self.class.type_cast_config_to_integer(config.fetch(:statement_limit) { 1000 }) @@ -459,11 +484,11 @@ module ActiveRecord end def initialize_type_map(m) # :nodoc: - register_class_with_limit m, 'int2', OID::Integer - register_class_with_limit m, 'int4', OID::Integer - register_class_with_limit m, 'int8', OID::Integer + register_class_with_limit m, 'int2', Type::Integer + register_class_with_limit m, 'int4', Type::Integer + register_class_with_limit m, 'int8', Type::Integer m.alias_type 'oid', 'int2' - m.register_type 'float4', OID::Float.new + m.register_type 'float4', Type::Float.new m.alias_type 'float8', 'float4' m.register_type 'text', Type::Text.new register_class_with_limit m, 'varchar', Type::String @@ -474,8 +499,7 @@ module ActiveRecord register_class_with_limit m, 'bit', OID::Bit register_class_with_limit m, 'varbit', OID::BitVarying m.alias_type 'timestamptz', 'timestamp' - m.register_type 'date', OID::Date.new - m.register_type 'time', OID::Time.new + m.register_type 'date', Type::Date.new m.register_type 'money', OID::Money.new m.register_type 'bytea', OID::Bytea.new @@ -501,10 +525,8 @@ module ActiveRecord m.alias_type 'lseg', 'varchar' m.alias_type 'box', 'varchar' - m.register_type 'timestamp' do |_, _, sql_type| - precision = extract_precision(sql_type) - OID::DateTime.new(precision: precision) - end + register_class_with_precision m, 'time', Type::Time + register_class_with_precision m, 'timestamp', OID::DateTime m.register_type 'numeric' do |_, fmod, sql_type| precision = extract_precision(sql_type) @@ -541,7 +563,7 @@ module ActiveRecord end # Extracts the value from a PostgreSQL column default definition. - def extract_value_from_default(oid, default) # :nodoc: + def extract_value_from_default(default) # :nodoc: case default # Quoted types when /\A[\(B]?'(.*)'::/m @@ -609,12 +631,10 @@ module ActiveRecord def exec_cache(sql, name, binds) stmt_key = prepare_statement(sql) - type_casted_binds = binds.map { |col, val| - [col, type_cast(val, col)] - } + type_casted_binds = binds.map { |attr| type_cast(attr.value_for_database) } - log(sql, name, type_casted_binds, stmt_key) do - @connection.exec_prepared(stmt_key, type_casted_binds.map { |_, val| val }) + log(sql, name, binds, stmt_key) do + @connection.exec_prepared(stmt_key, type_casted_binds) end rescue ActiveRecord::StatementInvalid => e pgerror = e.original_exception @@ -764,6 +784,73 @@ module ActiveRecord def create_table_definition(name, temporary = false, options = nil, as = nil) # :nodoc: PostgreSQL::TableDefinition.new native_database_types, name, temporary, options, as end + + def can_perform_case_insensitive_comparison_for?(column) + @case_insensitive_cache ||= {} + @case_insensitive_cache[column.sql_type] ||= begin + sql = <<-end_sql + SELECT exists( + SELECT * FROM pg_proc + INNER JOIN pg_cast + ON casttarget::text::oidvector = proargtypes + WHERE proname = 'lower' + AND castsource = '#{column.sql_type}'::regtype::oid + ) + end_sql + execute_and_clear(sql, "SCHEMA", []) do |result| + result.getvalue(0, 0) == 't' + end + end + end + + def add_pg_decoders + coders_by_name = { + 'int2' => PG::TextDecoder::Integer, + 'int4' => PG::TextDecoder::Integer, + 'int8' => PG::TextDecoder::Integer, + 'oid' => PG::TextDecoder::Integer, + 'float4' => PG::TextDecoder::Float, + 'float8' => PG::TextDecoder::Float, + 'bool' => PG::TextDecoder::Boolean, + } + query = <<-SQL + SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, t.typtype, t.typbasetype + FROM pg_type as t + SQL + coders = execute_and_clear(query, "SCHEMA", []) do |result| + result + .map { |row| construct_coder(row, coders_by_name['typname']) } + .compact + end + + map = PG::TypeMapByOid.new + coders.each { |coder| map.add_coder(coder) } + @connection.type_map_for_results = map + end + + def construct_coder(row, coder_class) + return unless coder_class + coder_class.new(oid: row['oid'], name: row['typname']) + end + + ActiveRecord::Type.add_modifier({ array: true }, OID::Array, adapter: :postgresql) + ActiveRecord::Type.add_modifier({ range: true }, OID::Range, adapter: :postgresql) + ActiveRecord::Type.register(:bit, OID::Bit, adapter: :postgresql) + ActiveRecord::Type.register(:bit_varying, OID::BitVarying, adapter: :postgresql) + ActiveRecord::Type.register(:binary, OID::Bytea, adapter: :postgresql) + ActiveRecord::Type.register(:cidr, OID::Cidr, adapter: :postgresql) + ActiveRecord::Type.register(:date_time, OID::DateTime, adapter: :postgresql) + ActiveRecord::Type.register(:decimal, OID::Decimal, adapter: :postgresql) + ActiveRecord::Type.register(:enum, OID::Enum, adapter: :postgresql) + ActiveRecord::Type.register(:hstore, OID::Hstore, adapter: :postgresql) + ActiveRecord::Type.register(:inet, OID::Inet, adapter: :postgresql) + ActiveRecord::Type.register(:json, OID::Json, adapter: :postgresql) + ActiveRecord::Type.register(:jsonb, OID::Jsonb, adapter: :postgresql) + ActiveRecord::Type.register(:money, OID::Money, adapter: :postgresql) + ActiveRecord::Type.register(:point, OID::Point, adapter: :postgresql) + ActiveRecord::Type.register(:uuid, OID::Uuid, adapter: :postgresql) + ActiveRecord::Type.register(:vector, OID::Vector, adapter: :postgresql) + ActiveRecord::Type.register(:xml, OID::Xml, adapter: :postgresql) end end end diff --git a/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb b/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb new file mode 100644 index 0000000000..ccb7e154ee --- /dev/null +++ b/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb @@ -0,0 +1,32 @@ +module ActiveRecord + # :stopdoc: + module ConnectionAdapters + class SqlTypeMetadata + attr_reader :sql_type, :type, :limit, :precision, :scale + + def initialize(sql_type: nil, type: nil, limit: nil, precision: nil, scale: nil) + @sql_type = sql_type + @type = type + @limit = limit + @precision = precision + @scale = scale + end + + def ==(other) + other.is_a?(SqlTypeMetadata) && + attributes_for_hash == other.attributes_for_hash + end + alias eql? == + + def hash + attributes_for_hash.hash + end + + protected + + def attributes_for_hash + [self.class, sql_type, type, limit, precision, scale] + end + end + 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 03dfd29a0a..7e184dd510 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -41,25 +41,6 @@ module ActiveRecord end module ConnectionAdapters #:nodoc: - class SQLite3Binary < Type::Binary # :nodoc: - def cast_value(value) - if value.encoding != Encoding::ASCII_8BIT - value = value.force_encoding(Encoding::ASCII_8BIT) - end - value - end - end - - class SQLite3String < Type::String # :nodoc: - def type_cast_for_database(value) - if value.is_a?(::String) && value.encoding == Encoding::ASCII_8BIT - value.encode(Encoding::UTF_8) - else - super - end - end - end - # The SQLite3 adapter works SQLite 3.6.16 or newer # with the sqlite3-ruby drivers (available as gem from https://rubygems.org/gems/sqlite3). # @@ -140,6 +121,7 @@ module ActiveRecord @config = config @visitor = Arel::Visitors::SQLite.new self + @quoted_column_names = {} if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true }) @prepared_statements = true @@ -239,6 +221,12 @@ module ActiveRecord case value when BigDecimal value.to_f + when String + if value.encoding == Encoding::ASCII_8BIT + super(value.encode(Encoding::UTF_8)) + else + super + end else super end @@ -253,7 +241,7 @@ module ActiveRecord end def quote_column_name(name) #:nodoc: - %Q("#{name.to_s.gsub('"', '""')}") + @quoted_column_names[name] ||= %Q("#{name.to_s.gsub('"', '""')}") end #-- @@ -280,11 +268,9 @@ module ActiveRecord end def exec_query(sql, name = nil, binds = []) - type_casted_binds = binds.map { |col, val| - [col, type_cast(val, col)] - } + type_casted_binds = binds.map { |attr| type_cast(attr.value_for_database) } - log(sql, name, type_casted_binds) do + log(sql, name, binds) do # Don't cache statements if they are not prepared if without_prepared_statement?(binds) stmt = @connection.prepare(sql) @@ -302,7 +288,7 @@ module ActiveRecord stmt = cache[:stmt] cols = cache[:cols] ||= stmt.columns stmt.reset! - stmt.bind_params type_casted_binds.map { |_, val| val } + stmt.bind_params type_casted_binds end ActiveRecord::Result.new(cols, stmt.to_a) @@ -387,8 +373,8 @@ module ActiveRecord end sql_type = field['type'] - cast_type = lookup_cast_type(sql_type) - new_column(field['name'], field['dflt_value'], cast_type, sql_type, field['notnull'].to_i == 0) + type_metadata = fetch_type_metadata(sql_type) + new_column(field['name'], field['dflt_value'], type_metadata, field['notnull'].to_i == 0) end end @@ -495,12 +481,6 @@ module ActiveRecord protected - def initialize_type_map(m) - super - m.register_type(/binary/i, SQLite3Binary.new) - register_class_with_limit m, %r(char)i, SQLite3String - end - def table_structure(table_name) structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})", 'SCHEMA').to_hash raise(ActiveRecord::StatementInvalid, "Could not find table '#{table_name}'") if structure.empty? |