diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 7efd75a239..24b21ccc65 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,7 @@ +* Support for user created range types in PostgreSQL. + + *Yves Senn* + * Default scopes are no longer overriden by chained conditions. Before this change when you defined a `default_scope` in a model diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb index fae260a921..32f86bf01c 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb @@ -6,6 +6,10 @@ class PostgreSQLAdapter < AbstractAdapter module OID class Type def type; end + + def infinity(options = {}) + ::Float::INFINITY * (options[:negative] ? -1 : 1) + end end class Identity < Type @@ -109,23 +113,19 @@ def initialize(subtype) 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, + from: (value[1] == ',' || from == '-infinity') ? @subtype.infinity(negative: true) : from, + to: (value[-2] == ',' || to == 'infinity') ? @subtype.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 + def type_cast_single(value) + infinity?(value) ? value : @subtype.type_cast(value) end def type_cast(value) @@ -133,27 +133,8 @@ def type_cast(value) 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 - + from = type_cast_single extracted[:from] + to = type_cast_single extracted[:to] ::Range.new(from, to, extracted[:exclude_end]) end end @@ -222,6 +203,10 @@ def type_cast(value) ConnectionAdapters::Column.value_to_decimal value end + + def infinity(options = {}) + BigDecimal.new("Infinity") * (options[:negative] ? -1 : 1) + end end class Hstore < Type @@ -331,13 +316,6 @@ def self.registered_type?(name) 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' diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 36c7462419..d1fb132b60 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -785,18 +785,29 @@ def add_oid(row, records_by_oid, type_map) end def initialize_type_map(type_map) - result = execute('SELECT oid, typname, typelem, typdelim, typinput FROM pg_type', 'SCHEMA') - leaves, nodes = result.partition { |row| row['typelem'] == '0' } + if supports_ranges? + result = execute(<<-SQL, 'SCHEMA') + SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, r.rngsubtype + FROM pg_type as t + LEFT JOIN pg_range as r ON oid = rngtypid + SQL + else + result = execute(<<-SQL, 'SCHEMA') + SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput + FROM pg_type as t + SQL + end + ranges, nodes = result.partition { |row| row['typinput'] == 'range_in' } + leaves, nodes = nodes.partition { |row| row['typelem'] == '0' } + arrays, nodes = nodes.partition { |row| row['typinput'] == 'array_in' } - # populate the leaf nodes + # populate the base types leaves.find_all { |row| OID.registered_type? row['typname'] }.each do |row| type_map[row['oid'].to_i] = OID::NAMES[row['typname']] end records_by_oid = result.group_by { |row| row['oid'] } - arrays, nodes = nodes.partition { |row| row['typinput'] == 'array_in' } - # populate composite types nodes.each do |row| add_oid row, records_by_oid, type_map @@ -807,6 +818,13 @@ def initialize_type_map(type_map) array = OID::Array.new type_map[row['typelem'].to_i] type_map[row['oid'].to_i] = array end + + # populate range types + ranges.find_all { |row| type_map.key? row['rngsubtype'].to_i }.each do |row| + subtype = type_map[row['rngsubtype'].to_i] + range = OID::Range.new type_map[row['rngsubtype'].to_i] + type_map[row['oid'].to_i] = range + end end FEATURE_NOT_SUPPORTED = "0A000" #:nodoc: diff --git a/activerecord/test/cases/adapters/postgresql/range_test.rb b/activerecord/test/cases/adapters/postgresql/range_test.rb index 5c2d8e1c1d..b621a1468a 100644 --- a/activerecord/test/cases/adapters/postgresql/range_test.rb +++ b/activerecord/test/cases/adapters/postgresql/range_test.rb @@ -10,12 +10,22 @@ class PostgresqlRange < ActiveRecord::Base class PostgresqlRangeTest < ActiveRecord::TestCase def teardown @connection.execute 'DROP TABLE IF EXISTS postgresql_ranges' + @connection.execute 'DROP TYPE IF EXISTS floatrange' end def setup - @connection = ActiveRecord::Base.connection + @connection = PostgresqlRange.connection begin @connection.transaction do + @connection.execute 'DROP TABLE IF EXISTS postgresql_ranges' + @connection.execute 'DROP TYPE IF EXISTS floatrange' + @connection.execute <<_SQL + CREATE TYPE floatrange AS RANGE ( + subtype = float8, + subtype_diff = float8mi + ); +_SQL + @connection.create_table('postgresql_ranges') do |t| t.daterange :date_range t.numrange :num_range @@ -24,7 +34,11 @@ def setup t.int4range :int4_range t.int8range :int8_range end + + @connection.add_column 'postgresql_ranges', 'float_range', 'floatrange' end + @connection.send :reload_type_map + PostgresqlRange.reset_column_information rescue ActiveRecord::StatementInvalid skip "do not test on PG without range" end @@ -35,15 +49,17 @@ def setup ts_range: "[''2010-01-01 14:30'', ''2011-01-01 14:30'']", tstz_range: "[''2010-01-01 14:30:00+05'', ''2011-01-01 14:30:00-03'']", int4_range: "[1, 10]", - int8_range: "[10, 100]") + int8_range: "[10, 100]", + float_range: "[0.5, 0.7]") insert_range(id: 102, date_range: "(''2012-01-02'', ''2012-01-04'')", - num_range: "[0.1, 0.2)", - ts_range: "[''2010-01-01 14:30'', ''2011-01-01 14:30'')", - tstz_range: "[''2010-01-01 14:30:00+05'', ''2011-01-01 14:30:00-03'')", + num_range: "(0.1, 0.2)", + ts_range: "(''2010-01-01 14:30'', ''2011-01-01 14:30'')", + tstz_range: "(''2010-01-01 14:30:00+05'', ''2011-01-01 14:30:00-03'')", int4_range: "(1, 10)", - int8_range: "(10, 100)") + int8_range: "(10, 100)", + float_range: "(0.5, 0.7)") insert_range(id: 103, date_range: "(''2012-01-02'',]", @@ -51,7 +67,8 @@ def setup ts_range: "[''2010-01-01 14:30'',]", tstz_range: "[''2010-01-01 14:30:00+05'',]", int4_range: "(1,]", - int8_range: "(10,]") + int8_range: "(10,]", + float_range: "[0.5,]") insert_range(id: 104, date_range: "[,]", @@ -59,7 +76,8 @@ def setup ts_range: "[,]", tstz_range: "[,]", int4_range: "[,]", - int8_range: "[,]") + int8_range: "[,]", + float_range: "[,]") insert_range(id: 105, date_range: "(''2012-01-02'', ''2012-01-02'')", @@ -67,7 +85,8 @@ def setup ts_range: "(''2010-01-01 14:30'', ''2010-01-01 14:30'')", tstz_range: "(''2010-01-01 14:30:00+05'', ''2010-01-01 06:30:00-03'')", int4_range: "(1, 1)", - int8_range: "(10, 10)") + int8_range: "(10, 10)", + float_range: "(0.5, 0.5)") @new_range = PostgresqlRange.new @first_range = PostgresqlRange.find(101) @@ -133,6 +152,14 @@ def test_tstzrange_values assert_nil @empty_range.tstz_range end + def test_custom_range_values + assert_equal 0.5..0.7, @first_range.float_range + assert_equal 0.5...0.7, @second_range.float_range + assert_equal 0.5...Float::INFINITY, @third_range.float_range + assert_equal -Float::INFINITY...Float::INFINITY, @fourth_range.float_range + assert_nil @empty_range.float_range + end + def test_create_tstzrange tstzrange = Time.parse('2010-01-01 14:30:00 +0100')...Time.parse('2011-02-02 14:30:00 CDT') round_trip(@new_range, :tstz_range, tstzrange) @@ -229,7 +256,8 @@ def insert_range(values) ts_range, tstz_range, int4_range, - int8_range + int8_range, + float_range ) VALUES ( #{values[:id]}, '#{values[:date_range]}', @@ -237,7 +265,8 @@ def insert_range(values) '#{values[:ts_range]}', '#{values[:tstz_range]}', '#{values[:int4_range]}', - '#{values[:int8_range]}' + '#{values[:int8_range]}', + '#{values[:float_range]}' ) SQL end