Question

I’ve notice that StackOverflow use this url:

http://stackoverflow.com/posts/123123/revisions

How can I add such routing to ASP MVC (3 or 4)?
What if I wanted to add the number of the revision like so:

http://stackoverflow.com/posts/123123/revisions/2

which translate to

• Controller=posts
• PostID=123123
• SubController=revisions
• RevisionID=2

My problem is that I have to set the entier routing in advanced.
If I’ll be able to set routing of posts and add routing between a specific post resource to sub-resource called revisions I’ll be able too add /revision after any route that return post resource.

Thank you,
Ido.

Answer 1

Such a route is easy to define at the start:

{controller}/{postId}/{action}/{revisionID}

But it is highly likely to match too much. This can be alleviated in two ways:

• Use constraints to limit postId and revision to positive integers (eg. regex \d+).

• Hard code the name of controller and action:

  posts/{postId}/revision/{revisionID}
  

  and thus allow this route to be placed early in the list of routes while only matching the very
  specific URL format.