使用值加载动态添加的输入字段

时间:2016-03-08 22:38:01

标签: javascript jquery

我使用此示例http://jsfiddle.net/aaki/hMJEy/1/动态地将输入字段添加到表单中,这就像魅力一样。

这是代码:

使用Javascript:

$('.multi-field-wrapper').each(function() {
    var $wrapper = $('.multi-fields', this);
    $(".add-field", $(this)).click(function(e) {
        $('.multi-field:first-child', $wrapper).clone(true).appendTo($wrapper).find('input').val('').focus();
    });
    $('.multi-field .remove-field', $wrapper).click(function() {
        if ($('.multi-field', $wrapper).length > 1)
            $(this).parent('.multi-field').remove();
    });
});

HTML:

<form role="form" action="/wohoo" method="POST">
  <label>Stuff</label>
   <div class="multi-field-wrapper">
     <div class="multi-fields">
       <div class="multi-field">
         <input type="text" name="stuff[]">
         <button type="button" class="remove-field">Remove</button>
       </div>
     </div>
    <button type="button" class="add-field">Add field</button>
  </div>
</form>

但是现在我想从数据库中获取数据并将值放入表单中。这样数据就可以更新,然后再次保存在数据库中。

不幸的是,jQuery是我的弱点,并且现在已经挣扎了一段时间。有任何建议或工作实例吗?

非常感谢你。

1 个答案:

答案 0 :(得分:3)

您需要将该数据转换为JSON字符串,然后使用 function addField( $wrapper ) { var $elem = $('.multi-field:first-child', $wrapper).clone(true).appendTo($wrapper).find('input'); $elem.val('').focus(); return $elem; } function loadData(){ $.getJSON( "http://www.json-generator.com/api/json/get/bSxiJZPXuG?indent=2", function(data) { /* [ { "name": [ "Tom", "Mike", "Sam" ] } ] */ for( var i = 0; i < data[0][ "name" ].length; i++ ) { if ( i >= $('.multi-field input').length ) { var $wrapper = $('.multi-fields'), $elem = addField( $wrapper ) $elem.val( data[0][ "name" ][i] ) } else { $('.multi-field input').eq(i).val( data[0][ "name" ][i] ) } } }); } $('.multi-field-wrapper').each(function() { var $wrapper = $('.multi-fields', this); $(".add-field", $(this)).click(function(e) { addField( $wrapper ) }); $('.multi-field .remove-field', $wrapper).click(function() { if ($('.multi-field', $wrapper).length > 1) $(this).parent('.multi-field').remove(); }); }); loadData();方法加载JSON。

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<form role="form" action="/wohoo" method="POST">
  <label>Stuff</label>
    <div class="multi-field-wrapper">
      <div class="multi-fields">
        <div class="multi-field">
          <input type="text" name="stuff[]">
          <button type="button" class="remove-field">Remove</button>
        </div>
      </div>
    <button type="button" class="add-field">Add field</button>
  </div><div id="images"></div>
</form>
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TRINITY_GG_429_c0_g1_i1_orf1 PF00156.22 Pribosyltran
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