diff options
| -rw-r--r-- | activerecord/lib/active_record/type/decimal.rb | 4 | ||||
| -rw-r--r-- | activerecord/test/cases/base_test.rb | 28 | ||||
| -rw-r--r-- | activerecord/test/cases/type/decimal_test.rb | 5 |
3 files changed, 36 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/type/decimal.rb b/activerecord/lib/active_record/type/decimal.rb index f200a92d10..f5b145230d 100644 --- a/activerecord/lib/active_record/type/decimal.rb +++ b/activerecord/lib/active_record/type/decimal.rb @@ -14,7 +14,7 @@ module ActiveRecord private def cast_value(value) - case value + casted_value = case value when ::Float convert_float_to_big_decimal(value) when ::Numeric, ::String @@ -26,6 +26,8 @@ module ActiveRecord cast_value(value.to_s) end end + + scale ? casted_value.round(scale) : casted_value end def convert_float_to_big_decimal(value) diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb index 382adbbdc7..0edb8a8901 100644 --- a/activerecord/test/cases/base_test.rb +++ b/activerecord/test/cases/base_test.rb @@ -946,6 +946,34 @@ class BasicsTest < ActiveRecord::TestCase assert_equal BigDecimal("1000234000567.95"), m1.big_bank_balance end + def test_numeric_fields_with_scale + m = NumericData.new( + :bank_balance => 1586.43122334, + :big_bank_balance => BigDecimal("234000567.952344"), + :world_population => 6000000000, + :my_house_population => 3 + ) + assert m.save + + m1 = NumericData.find(m.id) + assert_not_nil m1 + + # As with migration_test.rb, we should make world_population >= 2**62 + # to cover 64-bit platforms and test it is a Bignum, but the main thing + # is that it's an Integer. + assert_kind_of Integer, m1.world_population + assert_equal 6000000000, m1.world_population + + assert_kind_of Fixnum, m1.my_house_population + assert_equal 3, m1.my_house_population + + assert_kind_of BigDecimal, m1.bank_balance + assert_equal BigDecimal("1586.43"), m1.bank_balance + + assert_kind_of BigDecimal, m1.big_bank_balance + assert_equal BigDecimal("234000567.95"), m1.big_bank_balance + end + def test_auto_id auto = AutoId.new auto.save diff --git a/activerecord/test/cases/type/decimal_test.rb b/activerecord/test/cases/type/decimal_test.rb index fe49d0e79a..01ee36b892 100644 --- a/activerecord/test/cases/type/decimal_test.rb +++ b/activerecord/test/cases/type/decimal_test.rb @@ -25,6 +25,11 @@ module ActiveRecord assert_equal BigDecimal("0.33"), type.cast(Rational(1, 3)) end + def test_type_cast_decimal_from_rational_with_precision_and_scale + type = Decimal.new(precision: 4, scale: 2) + assert_equal BigDecimal("0.33"), type.cast(Rational(1, 3)) + end + def test_type_cast_decimal_from_rational_without_precision_defaults_to_18_36 type = Decimal.new assert_equal BigDecimal("0.333333333333333333E0"), type.cast(Rational(1, 3)) |