Paperclip problem for accepts_nested_attributes_for and reject_if

Question

I am developing a rails 3 application.

class Post < ActiveRecord::Base
  has_many :attachments
  has_many :photos
  accepts_nested_attributes_for :attachments         


        

Answer 1

Seems like since Rails 3.0.3, the association that you want to destroy (attachments, photos) need to be loaded. Take a look at this ticket. A quick fix, which isn't so elegant is to load your association in your update method:

@post = Post.includes(:attachments).find(params[:id])

if @post.update_attributes(params[:post])
  redirect_to(posts_url, :notice => 'Post updated.'
else
  render :action => "edit"
end

FYI this is still necessary for Rails 3.0.4.