* Add pluggable JSON backends with support for the JSON gem. [rick]

    Example: ActiveSupport::JSON.backend = "JSONGem"

  All internal Rails JSON encoding is now handled by ActiveSupport::JSON.encode().  Use of #to_json is not recommended, as it may clash with other libraries that overwrite it.  However, you can recover Rails specific functionality
  if you really want to use #to_json.

    gem 'json'
    ActiveSupport::JSON.backend = "JSONGem"

    class ActiveRecord::Base
      alias to_json rails_to_json
    end

1 files changed, 3 insertions, 1 deletions

diff --git a/activesupport/lib/active_support/json/encoders/string.rb b/activesupport/lib/active_support/json/encoders/string.rb
index 5ef797955a..27bef3b9cc 100644
--- a/activesupport/lib/active_support/json/encoders/string.rb
+++ b/activesupport/lib/active_support/json/encoders/string.rb
@@ -22,7 +22,7 @@ end
 ActiveSupport.escape_html_entities_in_json = true
 
 class String
-  def to_json(options = nil) #:nodoc:
+  def rails_to_json(options = nil) #:nodoc:
     json = '"' + gsub(ActiveSupport::JSON::Encoding.escape_regex) { |s|
       ActiveSupport::JSON::Encoding::ESCAPED_CHARS[s]
     }
@@ -33,4 +33,6 @@ class String
       s.unpack("U*").pack("n*").unpack("H*")[0].gsub(/.{4}/, '\\\\u\&')
     } + '"'
   end
+
+  alias to_json rails_to_json
 end