Question

I have succsfuly set up an image upload with the carrierwave gem.

but when I try to add an optional online url like so:

 <%= form_for @rating, :html => {:multipart=>true} do |f| %>

    <div class="field">
       <%= f.file_field :pic_url %>
    </div>

    <div class="field">
      <%= f.label :remote_pic_url_url, 'or image url' %>
      <br/>
      <%= f.text_field :remote_pic_url_url %>
    </div>

    <div class="actions">
      <%= f.submit 'Upload Picture', :class => 'btn btn-primary' %>
    </div>
<% end %>

then I get this error:

Can't mass-assign protected attributes:

my model is

class Rating < ActiveRecord::Base
  attr_accessible :pic_url, :rating

  mount_uploader :pic_url , ImageUploader
end

Answer 1

You need to be able to mass-assign the remote_pic_url_url attribute:

class Rating < ActiveRecord::Base
  attr_accessible :pic_url, :remote_pic_url_url, :rating

  mount_uploader :pic_url , ImageUploader
end