File upload with Activeadmin Rails using paperclip

Question

I use Active admin as my rails application backend. I want to make a file upload. How can I accomplish this functionality?

Answer 1

I'm using the rails 3.0.1 and the following code

f.input :image, :hint => "current image: #{f.template.image_tag(f.object.image.url(:thumb))}" 

return a string. After search a solution, i found it.

f.input :image, :hint => f.template.image_tag(f.object.image.url(:thumb))

Send direct the object, will return a image to the html