ui router - trailing slash

ui-router-trailing-slash.coffee

app.config ($urlRouterProvider)->

  ##############################################################################################################################
  # https://github.com/angular-ui/ui-router/wiki/Frequently-Asked-Questions#how-to-make-a-trailing-slash-optional-for-all-routes
  ##############################################################################################################################

  $urlRouterProvider.rule ($injector, $location)->

    path = $location.path()
    
    # Note: misnomer. This returns a query object, not a search string
    search = $location.search()
    
    # check to see if the path already ends in '/'
    return if path[path.length - 1] is "/"
    
    # If there was no search string / query params, return with a `/`
    return path + "/"  if Object.keys(search).length is 0
    
    # Otherwise build the search string and return a `/?` prefix
    params = []    
    angular.forEach search, (v, k) ->
      params.push k + "=" + v

    path + "/?" + params.join("&")

  $urlRouterProvider.otherwise('/')