Sometimes you have a table with a bunch of regular data and one single FK to protect. I don't think forcing users to whitelist that model is a good idea.
I prefer Rails to provide both options (three if you count declaring nothing) and leave the judgement of what's appropriate in every situation to the user. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-core+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.