When using filepicker-rails, where should I define my avatar_url method within my rails app?

Question

I've installed the filepicker-rails gem and I am able to upload files to the filepicker.io server. When I try to display the image for different users profile, I get the error:

undefined method 'avatar_url' for nil:NilClass

Under my users directory, in the show.html.erb file I have:

<%= filepicker_image_tag @user.avatar_url, w: 160, h: 160, fit: 'clip' %>

I have the following under my User.rb file:

def avatar_url(user)
  user.avatar_url
end

Any ideas why this doesn't work?

Answer 1

Basically you'll need a column in your DB called avatar_url. Write a migration that will give you a avatar_url column as just a regular string column. Since you're using Rails, ActiveRecord will provide the avatar_url method for you.

Edit: In your controller you're likely not looking up your user correctly which is resulting in a method call on a NilClass in your view.