Question

I’m wondering what is best practive for handling this type of situation in ruby on rails.

users_controller.rb

def show
  @user = User.find params[:id]
end

If user is not found it throws an exception which isn’t catched anywhere so it will display some ugly things to enduser.

Solution would be pack it into begin…rescue…end block:

def show
  begin
    @user = User.find params[:id]
  rescue
    flash[:error] = "User not found"
    redirect :action => :index
  end
end

although I’ve never seen such code in any rails article or tutorial I’ve seen.

What is the proper way of handling this type of situations?

Answer 1

It depends on your requirement.
But you want a general solution then you can have a rescue block in ApplicaionController which will handle the RecordNotFound exception.