javascript - 初始加载后无法更新 twitter typeahead.js 预取指纹

Question

我在应用程序中使用 typeahead (0.10.1) 来返回使用 bloodhound 预取的客户端列表。我不知道如何使用新指纹更新/重新初始化 bloodhound，以便在插入新客户端后它将使用新指纹并因此包含新客户端。

系统是 ajax，所以我不能只在刷新时更改名称，我试图按照下面的 reinitializeclient() 向它传递另一个指纹，但它不起作用:

var clientthumbprint = "initialname";
var clients = new Bloodhound({ 
    limit: 5,
    prefetch:{
    url: '/urltofeed/',
    thumbprint:getthumbprint()
   },
  datumTokenizer: function(d) { 
  return Bloodhound.tokenizers.whitespace(d.label); 
},
  queryTokenizer: Bloodhound.tokenizers.whitespace
});
clients.initialize();

function reinitializeclient(newthumbprint){
  //This is called when a client is saved
  clientthumbprint = newthumprint;
  clients.initialize(); //this didn't work
}  

function getthumbprint(){
  return clientthumbprint;
}

$('#search_user').typeahead({
    minLength: 2,
  },
  {
   displayKey: 'label',
   source: clients.ttAdapter()
})

有人知道我做错了什么吗？

编辑:使用@jharding 提到的拉取请求更新我的预输入文件后，我可以重置它，但不能重新初始化。使用以下内容:

function initialize_clients(){
  clients = new Bloodhound({ 
    limit: 5,
    prefetch:{
      url: '/pathtojson/',
      thumbprint:getthumbprint()
    },
    datumTokenizer: function(d) { 
      return Bloodhound.tokenizers.whitespace(d.label); 
    },
    queryTokenizer: Bloodhound.tokenizers.whitespace
  });
  clients.initialize();
};  

function resetclients(){    
  clientthumbprint = 'somenewthumbprint';
  clients.reset();//this works - after running nothing will return in search
  initialize_clients();//this is not working
}  

function getthumbprint(){
   return clientthumbprint;
}

Answer 1

你可能已经有了答案，但我想我会添加对我有用的代码

//This seems to refresh my prefetch data
clients.clearPrefetchCache();

//not sure whether setting to true does anything 
//though, but according to the bloodhound.js it should force a reinitialise
clients.initialize(true);

希望对你有帮助