Routes requirements exclude one character

rubyonrails-talk
1

Hi!

Consider the following route: map.detail "subscription_plans/:provider/:plan", :action => "detail", :requirements => {:plan => /[^ ]+/}

I want this route to match any string _without_ a space character. So "Telfort-100" matches "Telfort 100" does not.

I believed this to be correct but it's not. Including anchors ('\A' '$' etc) is not allowed. How else can I fix this?

Harm

2

The regexp you've specified here will match as long as there are at least two consecutive non-space characters. The only way I can think of to do what you're looking for would be to add a route preceding this one which matches any :plan WITH a space, and routes it to an error page. EG:

map.bad_detail "subscription_plans/:provider/:plan", :action => 'detail_error', :requirements => { :plan => // } map.detail "subscription_plans/:provider/:plan", :action => 'detail'

--Matt Jones

3

Matt Jones wrote:

The regexp you've specified here will match as long as there are at least two consecutive non-space characters.

I would have thought so, but the routing docs suggest that the regex is implicitly anchored at both ends (look at the postalcode example).

The only way I can think of to do what you're looking for would be to add a route preceding this one which matches any :plan WITH a space, and routes it to an error page.

That's clever!

Best,

4

That _is_ clever!

I still believe Rails is in error here. The docs indeed do suggest that the stuff is anchored. Clearly it's not. I'll consider making a ticket.

Thanks for the input guys!