Q:

Rails sprockets 3.0 find_asset

I used to use rails-sprockets 2.x and was using the following in an email layout template to include the css
Rails.application.assets.find_asset('file').to_s.html_safe
However, this no longer works in rails-sprockets 3.x and it is suggested to use 
Rails.application.assets_manifest.assets['file.css']
This only returns the string name of the file (if it exists).  How would I get the body of the file so I can output it in the view? 

A:

I just ran into this issue too, although I upgraded to sprockets 3.x about 7 months. 
I threw this together as quick as I could (there is likely a better solution out there...) - this will get you the path name - just use File.read()
def find_asset_path(asset_name)
  if Rails.application.assets
    Rails.application.assets.find_asset(asset_name).pathname
  else
    name = Rails.application.assets_manifest.assets[asset_name]
    File.join(Rails.public_path, 'assets', name)
  end
end

