<form class="navbar-form navbar-left" method="get" action="/search/">

  <form #searchForm="ngForm" class="navbar-form navbar-left" (ngSubmit)='submitSearch($event,searchForm) '>
    <input type="hidden" name="location" [(ngModel)]='searchLocation'>
    <div class="form-group">
      <input type="text" class="form-control" placeholder="Search" name="q" [(ngModel)]='searchQuery' (change)='searchQueryChange()'>
    </div>
    <button type="submit" class="btn btn-default">
        Search
    </button>
  </form>

  searchLocation = "New Beach"
  submitSearch(event, formData){
      console.log(event)
      console.log(formData.value)
  }

  searchQueryChange(){
      this.searchLocation = "Shanghai"
  }