How to exclude specific keywords from UrlMapping in Grails?

Question

I use the following url mapping in Grails:

"/$id"{
  controller = "user"
  action = "show"
}       

to map urls like mydomain.com/someusername

How do I attach constrains to the url mapping to exclude keywords like "login", "logout",...

I.e., mydomain.com/someusername should route to mydomain.com/user/show/someusername, mydomain.com/login should not route to mydomain.com/user/show/login.

Answer 1

You can use contrainsts for this mapping:

"/$id"{
  controller = "user"
  action = "show"
  constraints {
    //add a validator for $id from url mapping
    id(validator: {
        return !(it in ['login', 'logout'])
    })
  }
}