I have been trying to follow the guide in the link below to implement a checkout in a rails app I'm working on. http://www.sitepoint.com/buy-time-braintree-v-zero-sdk/
I am having hard time getting the paypal and credit card fields to show up. I think my problem is here where I tried to add a .js file from vendor/assets/javascripts/braintree.js to app/assets/javascripts/application.js
thanks in advance!