checking something in update action before saving...

This errors as I can't jump out of the action with render multiple

"Render and/or redirect were called multiple times in this action.
Please note that you may only call render OR redirect, and at most once
per action. Also note that neither redirect nor render terminate
execution of the action, so if you want to exit an action after
redirecting, you need to do something like "redirect_to(...) and

Fair enuf' - but how do I do this?

def update
params[:advert][:resort_ids] ||= [] # Fix from one of Ryan's
railscasts for checkbox updates

if current_user.admin
@advert.cleared_for_release =
params[:advert][:cleared_for_release] # protected with
attr_protected in model
@advert.front_page = params[:advert][:front_page]
# protected with attr_protected in model

puts "**** SUBMITTED resort count :" +
puts "**** ALLOWED resort count :" +

allowed_resorts = current_user.max_allowed_resorts_per_advert
requested_resorts = params[:advert][:resort_ids].length

if requested_resorts > allowed_resorts
flash[:notice] = "Sorry you're only allowed to list against
#{allowed_resorts} resorts."
render :action => 'edit' # Update probably failed
validation, re edit

Do what the message suggests and put a return here so that it does not
go on and do the next bit as well. Or possibly better use an else here
and drop to the bottom. Or even better reorganise the logic so that
there is only one call to render :action => 'edit'.