angular - How do I navigate to a sibling route?

Question

Let's presume I got this router config

export const EmployeeRoutes = [
   { path: 'sales', component: SalesComponent },
   { path: 'contacts', component: ContactsComponent }
];

and have navigated to the SalesComponent via this URL

/department/7/employees/45/sales

Now I'd like to go to contacts, but as I don't have all the parameters for an absolute route (e.g. the department ID, 7 in the above example) I'd prefer to get there using a relative link, e.g.

[routerLink]="['../contacts']"

or

this.router.navigate('../contacts')

which unfortunately doesn't work. There may be an obvious solution but I'm not seeing it. Can anyone help out here please?

Answer 1

If you are using the new router (3.0.0-beta2), you can use the ActivatedRoute to navigate to relative path as follow:

constructor(private router: Router, private r:ActivatedRoute) {} 

///
// DOES NOT WORK SEE UPDATE
goToContact() {
  this.router.navigate(["../contacts"], { relativeTo: this.r });
}

Update 08/02/2019 Angular 7.1.0

current route: /department/7/employees/45/sales

the old version will do: /department/7/employees/45/sales/contacts

As per @KCarnaille's comment the above does not work with the latest Router. The new way is to add .parent to this.r so

    // Working(08/02/2019) 
    goToContact() {
       this.router.navigate(["../contacts"], { relativeTo: this.r.parent });
    }

the update will do: /department/7/employees/45/contacts