2010/4/23 Manoj Kumar <manojs.nitt / gmail.com>: > What is the difference between > > parent.children << child.new > > and > > parent.children.build(params[:child]) What is the question? Seriously you do not provide any information about context or what code you are presenting. How do you expect us to answer such a question? Regards robert -- remember.guy do |as, often| as.you_can - without end http://blog.rubybestpractices.com/