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| author | Ryuta Kamizono <kamipo@gmail.com> | 2019-05-28 23:58:43 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-05-28 23:58:43 +0900 |
| commit | fc530d866809403ed9259028336db8103b00ac62 (patch) | |
| tree | aaabf1aaa2f306f71ee82920aeb557cef0b1f879 | |
| parent | 17afd4b982f32761f1725b07cda37b7db03dbb33 (diff) | |
| parent | 497e52f8c2d9d5bda485df5d1ff396935d23e43f (diff) | |
| download | rails-fc530d866809403ed9259028336db8103b00ac62.tar.gz rails-fc530d866809403ed9259028336db8103b00ac62.tar.bz2 rails-fc530d866809403ed9259028336db8103b00ac62.zip | |
Merge pull request #36352 from kamipo/fast_pluck_datetime
Don't round off subseconds unless necessary
| -rw-r--r-- | activemodel/lib/active_model/type/helpers/time_value.rb | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/activemodel/lib/active_model/type/helpers/time_value.rb b/activemodel/lib/active_model/type/helpers/time_value.rb index 735b9a75a6..dab196d653 100644 --- a/activemodel/lib/active_model/type/helpers/time_value.rb +++ b/activemodel/lib/active_model/type/helpers/time_value.rb @@ -22,10 +22,17 @@ module ActiveModel end def apply_seconds_precision(value) - return value unless precision && value.respond_to?(:usec) - number_of_insignificant_digits = 6 - precision + return value unless precision && value.respond_to?(:nsec) + + number_of_insignificant_digits = 9 - precision round_power = 10**number_of_insignificant_digits - value.change(usec: value.usec - value.usec % round_power) + rounded_off_nsec = value.nsec % round_power + + if rounded_off_nsec > 0 + value.change(nsec: value.nsec - rounded_off_nsec) + else + value + end end def type_cast_for_schema(value) |