diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/postgresql/oid.rb')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql/oid.rb | 403 |
1 files changed, 29 insertions, 374 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb index fae260a921..d28a2b4fa0 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb @@ -1,380 +1,35 @@ -require 'active_record/connection_adapters/abstract_adapter' +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' + +require 'active_record/connection_adapters/postgresql/oid/type_map_initializer' module ActiveRecord module ConnectionAdapters - class PostgreSQLAdapter < AbstractAdapter - module OID - class Type - def type; end - end - - class Identity < Type - def type_cast(value) - value - end - end - - class Bit < Type - def type_cast(value) - if String === value - ConnectionAdapters::PostgreSQLColumn.string_to_bit value - else - value - end - end - end - - class Bytea < Type - def type_cast(value) - return if value.nil? - PGconn.unescape_bytea value - end - end - - class Money < Type - def type_cast(value) - return if value.nil? - return value unless String === value - - # Because money output is formatted according to the locale, there are two - # cases to consider (note the decimal separators): - # (1) $12,345,678.12 - # (2) $12.345.678,12 - # Negative values are represented as follows: - # (3) -$2.55 - # (4) ($2.55) - - value.sub!(/^\((.+)\)$/, '-\1') # (4) - case value - when /^-?\D+[\d,]+\.\d{2}$/ # (1) - value.gsub!(/[^-\d.]/, '') - when /^-?\D+[\d.]+,\d{2}$/ # (2) - value.gsub!(/[^-\d,]/, '').sub!(/,/, '.') - end - - ConnectionAdapters::Column.value_to_decimal value - end - end - - class Vector < Type - attr_reader :delim, :subtype - - # +delim+ corresponds to the `typdelim` column in the pg_types - # table. +subtype+ is derived from the `typelem` column in the - # pg_types table. - def initialize(delim, subtype) - @delim = delim - @subtype = subtype - end - - # 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) - value - end - end - - class Point < Type - def type_cast(value) - if String === value - ConnectionAdapters::PostgreSQLColumn.string_to_point value - else - value - end - end - end - - class Array < Type - attr_reader :subtype - def initialize(subtype) - @subtype = subtype - end - - def type_cast(value) - if String === value - ConnectionAdapters::PostgreSQLColumn.string_to_array value, @subtype - else - value - end - end - end - - class Range < Type - attr_reader :subtype - def initialize(subtype) - @subtype = subtype - end - - def extract_bounds(value) - from, to = value[1..-2].split(',') - { - 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(options = {}) - ::Float::INFINITY * (options[:negative] ? -1 : 1) - end - - def infinity?(value) - value.respond_to?(:infinite?) && value.infinite? - end - - def to_integer(value) - infinity?(value) ? value : value.to_i - end - - def type_cast(value) - return if value.nil? || value == 'empty' - return value if value.is_a?(::Range) - - extracted = extract_bounds(value) - - case @subtype - when :date - from = ConnectionAdapters::Column.value_to_date(extracted[:from]) - from -= 1.day if extracted[:exclude_start] - to = ConnectionAdapters::Column.value_to_date(extracted[:to]) - when :decimal - from = BigDecimal.new(extracted[:from].to_s) - # FIXME: add exclude start for ::Range, same for timestamp ranges - to = BigDecimal.new(extracted[:to].to_s) - when :time - from = ConnectionAdapters::Column.string_to_time(extracted[:from]) - to = ConnectionAdapters::Column.string_to_time(extracted[:to]) - when :integer - from = to_integer(extracted[:from]) rescue value ? 1 : 0 - from -= 1 if extracted[:exclude_start] - to = to_integer(extracted[:to]) rescue value ? 1 : 0 - else - return value - end - - ::Range.new(from, to, extracted[:exclude_end]) - end - end - - class Integer < Type - def type_cast(value) - return if value.nil? - - ConnectionAdapters::Column.value_to_integer value - end - end - - class Boolean < Type - def type_cast(value) - return if value.nil? - - ConnectionAdapters::Column.value_to_boolean value - end - end - - class Timestamp < Type - def type; :timestamp; end - - def type_cast(value) - return if value.nil? - - # FIXME: probably we can improve this since we know it is PG - # specific - ConnectionAdapters::PostgreSQLColumn.string_to_time value - end - end - - class Date < Type - def type; :datetime; end - - def type_cast(value) - return if value.nil? - - # FIXME: probably we can improve this since we know it is PG - # specific - ConnectionAdapters::Column.value_to_date value - end - end - - class Time < Type - def type_cast(value) - return if value.nil? - - # FIXME: probably we can improve this since we know it is PG - # specific - ConnectionAdapters::Column.string_to_dummy_time value - end - end - - class Float < Type - def type_cast(value) - return if value.nil? - - value.to_f - end - end - - class Decimal < Type - def type_cast(value) - return if value.nil? - - ConnectionAdapters::Column.value_to_decimal value - end - end - - class Hstore < Type - def type_cast_for_write(value) - ConnectionAdapters::PostgreSQLColumn.hstore_to_string value - end - - def type_cast(value) - return if value.nil? - - ConnectionAdapters::PostgreSQLColumn.string_to_hstore value - end - - def accessor - ActiveRecord::Store::StringKeyedHashAccessor - end - end - - class Cidr < Type - def type_cast(value) - return if value.nil? - - ConnectionAdapters::PostgreSQLColumn.string_to_cidr value - end - end - - class Json < Type - def type_cast_for_write(value) - ConnectionAdapters::PostgreSQLColumn.json_to_string value - end - - def type_cast(value) - return if value.nil? - - ConnectionAdapters::PostgreSQLColumn.string_to_json value - end - - def accessor - ActiveRecord::Store::StringKeyedHashAccessor - end - end - - class TypeMap - def initialize - @mapping = {} - end - - def []=(oid, type) - @mapping[oid] = type - end - - def [](oid) - @mapping[oid] - end - - def clear - @mapping.clear - end - - def key?(oid) - @mapping.key? oid - end - - def fetch(ftype, fmod) - # The type for the numeric depends on the width of the field, - # so we'll do something special here. - # - # When dealing with decimal columns: - # - # places after decimal = fmod - 4 & 0xffff - # places before decimal = (fmod - 4) >> 16 & 0xffff - if ftype == 1700 && (fmod - 4 & 0xffff).zero? - ftype = 23 - end - - @mapping.fetch(ftype) { |oid| yield oid, fmod } - end - end - - # When the PG adapter connects, the pg_type table is queried. The - # key of this hash maps to the `typname` column from the table. - # type_map is then dynamically built with oids as the key and type - # objects as values. - NAMES = Hash.new { |h,k| # :nodoc: - h[k] = OID::Identity.new - } - - # Register an OID type named +name+ with a typecasting object in - # +type+. +name+ should correspond to the `typname` column in - # the `pg_type` table. - def self.register_type(name, type) - NAMES[name] = type - end - - # Alias the +old+ type to the +new+ type. - def self.alias_type(new, old) - NAMES[new] = NAMES[old] - end - - # Is +name+ a registered type? - def self.registered_type?(name) - NAMES.key? name - end - - register_type 'int2', OID::Integer.new - alias_type 'int4', 'int2' - alias_type 'int8', 'int2' - alias_type 'oid', 'int2' - - register_type 'daterange', OID::Range.new(:date) - register_type 'numrange', OID::Range.new(:decimal) - register_type 'tsrange', OID::Range.new(:time) - register_type 'int4range', OID::Range.new(:integer) - alias_type 'tstzrange', 'tsrange' - alias_type 'int8range', 'int4range' - - register_type 'numeric', OID::Decimal.new - register_type 'text', OID::Identity.new - alias_type 'varchar', 'text' - alias_type 'char', 'text' - alias_type 'bpchar', 'text' - alias_type 'xml', 'text' - - # FIXME: why are we keeping these types as strings? - alias_type 'tsvector', 'text' - alias_type 'interval', 'text' - alias_type 'macaddr', 'text' - alias_type 'uuid', 'text' - - register_type 'money', OID::Money.new - register_type 'bytea', OID::Bytea.new - register_type 'bool', OID::Boolean.new - register_type 'bit', OID::Bit.new - register_type 'varbit', OID::Bit.new - - register_type 'float4', OID::Float.new - alias_type 'float8', 'float4' - - register_type 'timestamp', OID::Timestamp.new - register_type 'timestamptz', OID::Timestamp.new - register_type 'date', OID::Date.new - register_type 'time', OID::Time.new - - register_type 'path', OID::Identity.new - register_type 'point', OID::Point.new - register_type 'polygon', OID::Identity.new - register_type 'circle', OID::Identity.new - register_type 'hstore', OID::Hstore.new - register_type 'json', OID::Json.new - register_type 'ltree', OID::Identity.new - - register_type 'cidr', OID::Cidr.new - alias_type 'inet', 'cidr' + module PostgreSQL + module OID # :nodoc: end end end |