javascript - Twitter TypeAhead.js 不更新输入

Question

我正在使用Twitter's TypeAhead.js我的 bootstrap 3 项目上的库。它似乎很棒，但是，我的输入字段遇到了麻烦。一旦我开始填写，就会触发预输入并相应地出现建议框。然而，选择任何条目后，输入字段根本没有被填充。有人可以帮我吗？

这是我现在正在工作的代码:

HTML:

<input type="text" class="form-control typeahead" name="txtCliente" id="txtCliente" placeholder="Cliente ou Aterro de Destino" value="" maxlength="100" required>

Javascript 代码 - 激活字段:

$('.typeahead').typeahead({
  name: 'parceiro',
  remote: '../api/index.php/parceiro/busca/%QUERY',
  template: [                                                                 
  '<p>{{RAZAO_SOCIAL}}</p>',                              
  '<p>{{DESCRICAO_TIPOPARCEIRO}}</p>',                                      
  '<p>{{CNPJ}}</p>'                         
  ].join(''),                                                                 
  engine: Hogan 
});

最后，从服务器返回的 JSON:

[{
    "ID":"17",
    "TIPOPARCEIRO":"C",
    "DESCRICAO_TIPOPARCEIRO":"CLIENTE",
    "RAZAO_SOCIAL":"VINICIUS SOARES BATISTA",
    "CNPJ":"12344123213123"
}]

提前致谢!

[编辑]

感谢@bass-jobsen，我已经能够部署它了。正如他所说， secret 在于 TypeAhead 提供的 filter() 函数。下面是该函数的编写代码。

...

 $('#txtCliente').typeahead({                                
  header: '<b>Clientes</b>',
  template: [
  '<span>{{RAZAO_SOCIAL}}<BR>{{CNPJ}}</span>',
  ].join(''),
  limit: 3,
  remote: {
    url: '../api/index.php/parceiro/busca/%QUERY',
    filter: function(parsedResponse) {
      var dataset = [];
      for(i = 0; i < parsedResponse.length; i++) {
        if(parsedResponse[i].TIPOPARCEIRO == "C" || parsedResponse[i].TIPOPARCEIRO == "A"){
        dataset.push({
          ID: parsedResponse[i].ID,
          RAZAO_SOCIAL: parsedResponse[i].RAZAO_SOCIAL,
          DESCRICAO_TIPOPARCEIRO: parsedResponse[i].DESCRICAO_TIPOPARCEIRO,
          CNPJ: parsedResponse[i].CNPJ,
          value: parsedResponse[i].RAZAO_SOCIAL
        });
        }
      }
      return dataset;
    },
  },
  engine: Hogan
})

...

Answer 1

您的数据集没有 value 属性(也缺少 tokens 属性)。

来自文档:

The individual units that compose datasets are called datums. The canonical form of a datum is an object with a value property and a tokens property. value is the string that represents the underlying value of the datum and tokens is a collection of single-word strings that aid typeahead.js in matching datums with a given query.

另请查看 http://twitter.github.io/typeahead.js/examples/ 上的“Twitter 开源项目”示例。这里返回的 json 是一个对象数组，例如:

 {
    "name": "typeahead.js",
    "description": "A fast and fully-featured autocomplete library",
    "language": "JavaScript",
    "value": "typeahead.js",
    "tokens": [
      "typeahead.js",
      "JavaScript"
    ]
  }

如果您无法更改 JSON 响应，您可以使用远程的过滤选项来构造有效数据:

$('.typeahead').typeahead({                                
  name: 'is',                                    
  remote: {url:'database2.php?q=%QUERY', filter: function(data){

    for (var i = 0; i < data.length; i++) {

      data[i].value =  data[i].RAZAO_SOCIAL;
      data[i].tokens = new Array(data[i].RAZAO_SOCIAL,data[i].DESCRICAO_TIPOPARCEIRO);
    }  
  return data;}

  },
  template: [ 
  '<p>{{RAZAO_SOCIAL}}</p>',                              
  '<p>{{DESCRICAO_TIPOPARCEIRO}}</p>',                                      
  '<p>{{CNPJ}}</p>'            
  ].join(''),
  filter: 'testfilter',                                                                 
  engine: Hogan                                                                 
});