add custom exceptions when webservice fail, add a sample when need pa…

…y with html link

app/controllers/payments_controller.rb

@@ -1,8 +1,12 @@
 class PaymentsController < ApplicationController
 
-  def charge
-    response = Moip.authorize(:reason=>"Teste",:id=>"12", :value=>1)
+  def direct_charge
+    response = Moip.authorize(:reason=>"Teste",:id=>"15", :value=>1)
     redirect_to Moip.charge_url(response)
   end
 
+  def manual_charge
+    @response = Moip.authorize(:reason=>"Teste",:id=>"14", :value=>1)
+  end
+
 end

config/routes.rb

@@ -1,5 +1,6 @@
 ActionController::Routing::Routes.draw do |map|
-
-  map.charge "/charge", :controller=>"payments", :action=>"charge"
-
+
+  map.charge "/manual_charge", :controller=>"payments", :action=>"manual_charge"
+  map.charge "/direct_charge", :controller=>"payments", :action=>"direct_charge"
+
 end

lib/moip.rb

@@ -27,7 +27,8 @@ def self.authorize(attributes = {})
     end
 
     response = post('/EnviarInstrucao/Unica', :body => xml)["ns1:EnviarInstrucaoUnicaResponse"]
-    response["Resposta"]["Status"] == "Falha" ? raise(StandardError, response["Resposta"]["Erro"]) : response
+    raise(StandardError, "Webservice can't be reached") if response.nil?
+    (response["Resposta"]["Status"] == "Falha") ? raise(StandardError, response["Resposta"]["Erro"]) : response
   end
 
   def self.charge_url(response)