From 27dc4fa28ee098d70a11829ad5fa4af0c54e880b Mon Sep 17 00:00:00 2001
From: Yves Senn <yves.senn@gmail.com>
Date: Mon, 26 Aug 2013 11:14:56 +0200
Subject: PG adapter deals with negative money values formatted with
 parenthesis.

Closes #11899.
---
 activerecord/lib/active_record/connection_adapters/postgresql/oid.rb | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'activerecord/lib')

diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
index 58c6235059..dab876af14 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
@@ -34,12 +34,17 @@ module ActiveRecord
         class Money < Type
           def type_cast(value)
             return if value.nil?
+            return value unless String === value
 
             # Because money output is formatted according to the locale, there are two
             # cases to consider (note the decimal separators):
             #  (1) $12,345,678.12
             #  (2) $12.345.678,12
+            # Negative values are represented as follows:
+            #  (3) -$2.55
+            #  (4) ($2.55)
 
+            value.sub!(/^\((.+)\)$/, '-\1') # (4)
             case value
             when /^-?\D+[\d,]+\.\d{2}$/  # (1)
               value.gsub!(/[^-\d.]/, '')
-- 
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