Ruby on Rails

Jim ruther Nill wrote in post #1019405:
> On Wed, Aug 31, 2011 at 10:51 PM, 7stud -- <lists@ruby-forum.com> wrote:
>
>>
>> match '/:id' => 'users/show'
>>
>
> having this line will match any controller's index action

Ah, I see. :id will match anything, e.g.

/dog
/frog
/users
/pages
/hello_world
/1
/200

> in the Segments Constraints section of the rails guide, you'll see the
> first
> line of code.
> following that code, you can use
>
> match 'users/:id' => 'users#show', :constraints => { :id => /\d/ }, :

..and the constraint there says to only match a number in the :id
position of the url. But is that route any different than the show
route created by resources()? It was my understanding that the op
wanted a url consisting of only a number, so I think the route should be
more like:

match '/:id' => users#show, :constraints => {:id => /\d+/}, :via =>
'get'

> via => :get
>
> the via option is important so that it will only match get requests.
>

I wonder why people post ambiguous questions and expect people who read
them to know what they are thinking--instead of giving a simple example
that leaves nothing in doubt.

However, that will still match routes like:

/a2b

It looks like you can write a custom matcher pretty easily, like this:

class UserShowConstraint
def matches?(request)

request.path =~ /
\A #start of string
\/ #forward slash
\d+ #one or more digits
\z