Added support for multiple mapping.

Author: fnando

lib/paypal/recurring/base.rb

@@ -99,7 +99,7 @@ def checkout_details
       #   response.completed? && response.approved?
       #
       def request_payment
-        params = collect(:amount, :return_url, :cancel_url, :ipn_url, :currency, :description, :payer_id, :token).merge(:payment_action => "Sale")
+        params = collect(:amount, :return_url, :cancel_url, :ipn_url, :currency, :description, :payer_id, :token, :reference).merge(:payment_action => "Sale")
         request.run(:payment, params)
       end
 

lib/paypal/recurring/response/base.rb

@@ -9,8 +9,11 @@ def self.mapping(options = {})
             class_eval <<-RUBY
               def #{to}
                 @#{to} ||= begin
-                  value = params[:#{from}]
-                  value = send("build_#{to}", params[:#{from}]) if respond_to?("build_#{to}", true)
+                  from = [#{from.inspect}].flatten
+                  name = from.find {|name| params[name]}
+                  value = nil
+                  value = params[name] if name
+                  value = send("build_#{to}", value) if respond_to?("build_#{to}", true)
                   value
                 end
               end

lib/paypal/recurring/response/payment.rb

@@ -6,7 +6,8 @@ class Payment < Base
           :status    => :PAYMENTINFO_0_PAYMENTSTATUS,
           :amount    => :PAYMENTINFO_0_AMT,
           :fees      => :PAYMENTINFO_0_FEEAMT,
-          :seller_id => :PAYMENTINFO_0_SECUREMERCHANTACCOUNTID
+          :seller_id => :PAYMENTINFO_0_SECUREMERCHANTACCOUNTID,
+          :reference => [:PROFILEREFERENCE, :PAYMENTREQUEST_0_CUSTOM, :PAYMENTREQUEST_0_INVNUM]
         )
 
         def completed?

spec/paypal/response/base_spec.rb

@@ -0,0 +1,19 @@
+require "spec_helper"
+
+describe PayPal::Recurring::Response do
+  let(:response_class) { Class.new(PayPal::Recurring::Response::Base) }
+
+  describe ".mapping" do
+    it "returns single item mapping" do
+      response_class.mapping :foo => :bar
+      response = response_class.new(stub(:body => "bar=foo"))
+      response.foo.should == "foo"
+    end
+
+    it "returns item from array mapping" do
+      response_class.mapping :foo => [:bar, :zaz]
+      response = response_class.new(stub(:body => "zaz=foo"))
+      response.foo.should == "foo"
+    end
+  end
+end