gistfile1.rb

if @dn_email.confirmation_letter?
  VUtility.logged_in_user_id = session[:user].id
  @dn_email.job.update_attributes(:confirmation_letter_event_id => @event.id) 
  redirect_url = "/jobs/#{@dn_email.job_id};edit"
else
  redirect_url = "/leads/#{@dn_email.lead_id};show"
end

# change 1
if @dn_email.confirmation_letter?
  @dn_email.job.logged_in_user_id = session[:user].id   # DRY violation (for attr_accessor :logged_in_user_id)
  @dn_email.job.update_attributes(:confirmation_letter_event_id => @event.id) 
  redirect_url = "/jobs/#{@dn_email.job_id};edit"
else
  redirect_url = "/leads/#{@dn_email.lead_id};show"
end

# change 2
if @dn_email.confirmation_letter?
  @dn_email.job.update_by_form({:confirmation_letter_event_id => @event.id}, session[:user].id) # no longer using update_attributes
  redirect_url = "/jobs/#{@dn_email.job_id};edit"
else
  redirect_url = "/leads/#{@dn_email.lead_id};show"
end