Rails Best Practices | Replace Complex Creation with Factory Method

Sometimes you will build a complex model with params, current_user and other logics in controller, but it makes your controller too big, you should move them into model with a factory method Bad Smell class InvoicesController < ApplicationController def create @invoice = Invoice.new(params[:invoice]) @invoice.address = current_user.address @invoice.phone = current_user.phone @invoice.vip = (@invoi

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fat model