Question

I’m trying to duplicate a resource in Rails in my application and was running into some issues.

The setup is: I have a library of ‘item templates’ that the user can use, then modify the resulting item. I currently have a setup like this:

@temp_item = @template_item.dup
@new_item = @user.items.create(@temp_item.attributes)

However I’m running into a problem where it’s trying to copy across protected attributes as well (namely created_at and updated_at). I’d rather not list out each attribute individually, so my question is, is there a way to exclude attributes being copied in this instance?

Thanks.

Answer 1

Incorporating Mischa’s good suggestion into my original answer.

@temp_item_attributes = @template_item.attributes.reject{ |k,v|
  %w(created_at updated_at).include?(k)
}
@new_item = @user.items.create(@temp_item_attributes)