From 33b5be1a5aaa2a62f6801ea3b9c89f6deafa0e0b Mon Sep 17 00:00:00 2001
From: Pavel Pravosud <rwz@duckroll.ru>
Date: Fri, 17 Jun 2011 12:52:07 +0700
Subject: [PATCH] added Money#to_json method

---
 lib/money/money.rb | 7 +++++++
 spec/money_spec.rb | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/lib/money/money.rb b/lib/money/money.rb
index 095c8f8234..82dc065059 100644
--- a/lib/money/money.rb
+++ b/lib/money/money.rb
@@ -343,6 +343,13 @@ def as_euro
   def to_money
     self
   end
+  
+  # Return the amount of money as a JSON string.
+  #
+  # @return [String]
+  def to_json
+    JSON.dump(:amount => to_f, :currency => currency.to_s)
+  end
 
   # Common inspect function
   #
diff --git a/spec/money_spec.rb b/spec/money_spec.rb
index a796a63e09..f08a0737ea 100644
--- a/spec/money_spec.rb
+++ b/spec/money_spec.rb
@@ -125,6 +125,11 @@
     decimal.should be_instance_of(BigDecimal)
     decimal.should == 10.0
   end
+  
+  specify "Money.to_json works" do
+    json = %({"amount":10.0,"currency":"USD"})
+    Money.new(10_00, 'USD').to_json.should == json
+  end
 
   specify "Money.to_d should respect :subunit_to_unit currency property" do
     decimal = Money.new(10_00, "BHD").to_d