diff options
| -rw-r--r-- | activesupport/lib/active_support/json/encoding.rb | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/json/encoding.rb b/activesupport/lib/active_support/json/encoding.rb index 3d7be8da1f..02c233595d 100644 --- a/activesupport/lib/active_support/json/encoding.rb +++ b/activesupport/lib/active_support/json/encoding.rb @@ -1,7 +1,7 @@ # encoding: utf-8 require 'bigdecimal' require 'active_support/core_ext/array/wrap' -require 'active_support/core_ext/big_decimal/conversions' +require 'active_support/core_ext/big_decimal/conversions' # for #to_s require 'active_support/core_ext/hash/except' require 'active_support/core_ext/hash/slice' require 'active_support/core_ext/module/delegation' @@ -179,6 +179,14 @@ class Numeric end class BigDecimal + # A BigDecimal would be naturally represented as a JSON number. Most libraries, + # however, parse non-integer JSON numbers directly as floats. Clients using + # those libraries would get in general a wrong number and no way to recover + # other than manually inspecting the string with the JSON code itself. + # + # That's why a JSON string is returned. The JSON literal is not numeric, but if + # the other end knows by contract that the data is supposed to be a BigDecimal, + # it still has the chance to post-process the string and get the real value. def as_json(options = nil) to_s end #:nodoc: end |