[FEATURE query-params] Allow link-to helper to work without route

[alexspeller]

Someone asked in IRC and I've been meaning to implement for a while anyway, this allows:

App.Router.map(function() {
  this.route('index', {queryParams: ['page']});
});

{{#link-to page=2}}Next Page{{/link-to}}

This is useful for example in components that can be used on multiple routes (a pagination component would be a good example) that want to change the query params but don't care about the actual route that is active.

[thomasboyt]

👍 wanting it for the exact use case you described (generic pagination)

[stefanpenner]

does this also need to be behind the flag? Or does the fact that the other code is already behind the flag handle it for us?

[alexspeller]

@stefanpenner good point, I put a flag in

[jasonkriss]

I'm trying to have a generic pagination component, and this is a great first step. However, it only looks up the currentRouteName, and thus will not work when a context needs to be provided. Would it be possible to have this work with dynamic routes as well? I'm not familiar enough with the router internals..

[alexspeller]

@jasonkriss this will work with dynamic routes, it will use the current context.