diff options
| -rw-r--r-- | activesupport/CHANGELOG.md | 22 | ||||
| -rw-r--r-- | activesupport/lib/active_support/duration.rb | 41 | ||||
| -rw-r--r-- | activesupport/test/core_ext/duration_test.rb | 34 |
3 files changed, 91 insertions, 6 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index c50c1902fe..bae573cf37 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,25 @@ +* Fix implicit coercion calculations with scalars and durations + + Previously calculations where the scalar is first would be converted to a duration + of seconds but this causes issues with dates being converted to times, e.g: + + Time.zone = "Beijing" # => Asia/Shanghai + date = Date.civil(2017, 5, 20) # => Mon, 20 May 2017 + 2 * 1.day # => 172800 seconds + date + 2 * 1.day # => Mon, 22 May 2017 00:00:00 CST +08:00 + + Now the `ActiveSupport::Duration::Scalar` calculation methods will try to maintain + the part structure of the duration where possible, e.g: + + Time.zone = "Beijing" # => Asia/Shanghai + date = Date.civil(2017, 5, 20) # => Mon, 20 May 2017 + 2 * 1.day # => 2 days + date + 2 * 1.day # => Mon, 22 May 2017 + + Fixes #29160, #28970. + + *Andrew White* + * Add support for versioned cache entries. This enables the cache stores to recycle cache keys, greatly saving on storage in cases with frequent churn. Works together with the separation of `#cache_key` and `#cache_version` in Active Record and its use in Action Pack's fragment caching. diff --git a/activesupport/lib/active_support/duration.rb b/activesupport/lib/active_support/duration.rb index d4424ed792..39deb2313f 100644 --- a/activesupport/lib/active_support/duration.rb +++ b/activesupport/lib/active_support/duration.rb @@ -37,27 +37,56 @@ module ActiveSupport end def +(other) - calculate(:+, other) + if Duration === other + seconds = value + other.parts[:seconds] + new_parts = other.parts.merge(seconds: seconds) + new_value = value + other.value + + Duration.new(new_value, new_parts) + else + calculate(:+, other) + end end def -(other) - calculate(:-, other) + if Duration === other + seconds = value - other.parts[:seconds] + new_parts = other.parts.map { |part, other_value| [part, -other_value] }.to_h + new_parts = new_parts.merge(seconds: seconds) + new_value = value - other.value + + Duration.new(new_value, new_parts) + else + calculate(:-, other) + end end def *(other) - calculate(:*, other) + if Duration === other + new_parts = other.parts.map { |part, other_value| [part, value * other_value] }.to_h + new_value = value * other.value + + Duration.new(new_value, new_parts) + else + calculate(:*, other) + end end def /(other) - calculate(:/, other) + if Duration === other + new_parts = other.parts.map { |part, other_value| [part, value / other_value] }.to_h + new_value = new_parts.inject(0) { |total, (part, value)| total + value * Duration::PARTS_IN_SECONDS[part] } + + Duration.new(new_value, new_parts) + else + calculate(:/, other) + end end private def calculate(op, other) if Scalar === other Scalar.new(value.public_send(op, other.value)) - elsif Duration === other - Duration.seconds(value).public_send(op, other) elsif Numeric === other Scalar.new(value.public_send(op, other)) else diff --git a/activesupport/test/core_ext/duration_test.rb b/activesupport/test/core_ext/duration_test.rb index 1648a9b270..3108f24f21 100644 --- a/activesupport/test/core_ext/duration_test.rb +++ b/activesupport/test/core_ext/duration_test.rb @@ -337,6 +337,13 @@ class DurationTest < ActiveSupport::TestCase assert_equal "no implicit conversion of String into ActiveSupport::Duration::Scalar", exception.message end + def test_scalar_plus_parts + scalar = ActiveSupport::Duration::Scalar.new(10) + + assert_equal({ days: 1, seconds: 10 }, (scalar + 1.day).parts) + assert_equal({ days: -1, seconds: 10 }, (scalar + -1.day).parts) + end + def test_scalar_minus scalar = ActiveSupport::Duration::Scalar.new(10) @@ -349,6 +356,9 @@ class DurationTest < ActiveSupport::TestCase assert_equal 5, scalar - 5.seconds assert_instance_of ActiveSupport::Duration, scalar - 5.seconds + assert_equal({ days: -1, seconds: 10 }, (scalar - 1.day).parts) + assert_equal({ days: 1, seconds: 10 }, (scalar - -1.day).parts) + exception = assert_raises(TypeError) do scalar - "foo" end @@ -356,6 +366,13 @@ class DurationTest < ActiveSupport::TestCase assert_equal "no implicit conversion of String into ActiveSupport::Duration::Scalar", exception.message end + def test_scalar_minus_parts + scalar = ActiveSupport::Duration::Scalar.new(10) + + assert_equal({ days: -1, seconds: 10 }, (scalar - 1.day).parts) + assert_equal({ days: 1, seconds: 10 }, (scalar - -1.day).parts) + end + def test_scalar_multiply scalar = ActiveSupport::Duration::Scalar.new(5) @@ -375,6 +392,14 @@ class DurationTest < ActiveSupport::TestCase assert_equal "no implicit conversion of String into ActiveSupport::Duration::Scalar", exception.message end + def test_scalar_multiply_parts + scalar = ActiveSupport::Duration::Scalar.new(1) + assert_equal({ days: 2 }, (scalar * 2.days).parts) + assert_equal(172800, (scalar * 2.days).value) + assert_equal({ days: -2 }, (scalar * -2.days).parts) + assert_equal(-172800, (scalar * -2.days).value) + end + def test_scalar_divide scalar = ActiveSupport::Duration::Scalar.new(10) @@ -394,6 +419,15 @@ class DurationTest < ActiveSupport::TestCase assert_equal "no implicit conversion of String into ActiveSupport::Duration::Scalar", exception.message end + def test_scalar_divide_parts + scalar = ActiveSupport::Duration::Scalar.new(10) + + assert_equal({ days: 2 }, (scalar / 5.days).parts) + assert_equal(172800, (scalar / 5.days).value) + assert_equal({ days: -2 }, (scalar / -5.days).parts) + assert_equal(-172800, (scalar / -5.days).value) + end + def test_twelve_months_equals_one_year assert_equal 12.months, 1.year end |