>> Either use a regex to match the parameter (and then send it to a
>> different controller action) or have a single controller action that
>> runs both find_by_permalink and find_by_id.
>
> I have added this to the controller which seems to work well, as my
> regex writing is weak.
>
> @article = Article.find_by_permalink(params[:id])
> unless @article
> @article = Article.find(params[:id])
> end
I'd recommend a slightly different approach.
Setup an "old_article" route in routes.rb that explicitly matches those old
urls... Something like (for 2.x):
map.old_article '/articles/:id', ..., :requirements => {:id => /\d+-.*/}
Then, in the action for old_article you can find the article and *301* redirect
it to the new article URL.
Doing this will get you a little SEO boost from Google. Or rather... they
won't punish you for duplicate content...
If you're using Rails 3, the syntax will change a bit and you could probably
put it all in the routes file using the new redirect stuff. Maybe.
Hope this helps...
-philip
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