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Fix number_to_currency to avoid negative format when displaying zero.

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This is a more-complete version of the fix in #37865 which originally
addressed #37846.

Also see context at #39350 with respect to alternate input formats.

Closes #42577
This commit is contained in:
Mike Dalessio 2021-06-23 12:35:14 -04:00
parent 97b494fefb
commit 9a05443d1e
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2 changed files with 12 additions and 3 deletions
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13
activesupport/lib/active_support/number_helper/number_to_currency_converter.rb
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@ -11,9 +11,16 @@ module ActiveSupport
number = self.number.to_s.strip
format = options[:format]
if number.sub!(/^-/, "") &&
(options[:precision] != 0 || number.to_f > 0.5)
format = options[:negative_format]
if number.sub!(/^-/, "")
number_f = number.to_f.abs
if number_f == 0.0
# likely an alternate input format that failed to parse.
# see https://github.com/rails/rails/pull/39350
format = options[:negative_format]
else
number_f *= 10**options[:precision]
format = options[:negative_format] if number_f > 0.5
end
end
rounded_number = NumberToRoundedConverter.convert(number, options)

2
activesupport/test/number_helper_test.rb
View file

@ -79,6 +79,8 @@ module ActiveSupport
assert_equal("1,234,567,890.50 - Kč", number_helper.number_to_currency("-1234567890.50", unit: "Kč", format: "%n %u", negative_format: "%n - %u"))
assert_equal("0.00", number_helper.number_to_currency(+0.0, unit: "", negative_format: "(%n)"))
assert_equal("$0", number_helper.number_to_currency(-0.456789, precision: 0))
assert_equal("$0.0", number_helper.number_to_currency(-0.0456789, precision: 1))
assert_equal("$0.00", number_helper.number_to_currency(-0.00456789, precision: 2))
assert_equal("$1,11", number_helper.number_to_currency("1,11"))
assert_equal("$0,11", number_helper.number_to_currency("0,11"))
assert_equal("$,11", number_helper.number_to_currency(",11"))