How to edit production.rb in my rails app to get it working using heroku and paperclip?

问题

I am using paperclip + AWS in my rails app to upload images.

When I reference images in my view as

<%= image_tag product.avatar.url(:medium) %> 

current image urls are showing up as:

http://s3.amazonaws.com/rockywolfugc/products/avatars/000/000/003/medium/59577_10100258833612183_1508749_n.jpg?1386876682

I need them to show up as:

http://rockywolfugc.s3-us-west-2.amazonaws.com/products/avatars/000/000/003/medium/59577_10100258833612183_1508749_n.jpg?1386876682

At http://rubydoc.info/gems/paperclip/Paperclip/Storage/S3 I'm seeing there is an option for ":s3_domain_url" but I'm not quite sure how to use it.

Below is the relevant portion of production.rb

config.paperclip_defaults = {
  :storage => :s3,
  :s3_credentials => {
    :bucket => ENV['S3_BUCKET_NAME'],
    :access_key_id => ENV['AWS_ACCESS_KEY_ID'],
    :secret_access_key => ENV['AWS_SECRET_ACCESS_KEY']
  }
}

Where do I integrate the s3_domain_url in this file? Additionally, what do I have to do on heroku to get this to run? Example: heroku config:set xxxx=yyyy

回答1:

try setting

config.action_controller.asset_host = "//#{ENV['AWS_BUCKET_NAME']}.s3-us-west-2.amazonaws.com"

in your production.rb

来源：https://stackoverflow.com/questions/20558281/how-to-edit-production-rb-in-my-rails-app-to-get-it-working-using-heroku-and-pap