试图让 tag-it 与 AJAX 调用一起工作 [英] Trying to get tag-it to work with an AJAX call

问题描述

试图让 tag-it 与 ajax 调用一起工作.

Trying to get tag-it to work with an ajax call.

到目前为止一切正常.除了，我无法通过 ajax 调用分配 tagSource.

Everything works so far. Except, I am unable to assign a tagSource via an ajax call.

在萤火虫中，数据"正在返回:

In firebug, the 'data' is returning:

["Ruby","Ruby On Rails"]

但是当我在输入框中输入时它没有显示.

But its not showing up as I type into the input box.

$('.tags ul').tagit({
  itemName: 'question',
  fieldName: 'tags',
  removeConfirmation: true,
  availableTags: ["c++", "java", "php", "javascript", "ruby", "python", "c"],
  allowSpaces: true,
  // tagSource: ['foo', 'bar']
  tagSource: function() {
    $.ajax({
      url:        "/autocomplete_tags.json",
      dataType:   "json",
      data:       { term: 'ruby' },
      success:    function(data) {
        console.log(data);
        return data;
      }
    });
  }
});

console.log(data) 返回 ["Ruby", "Ruby On Rails"].

我在这里遗漏了什么吗?还有其他人让这个工作吗?

Am I missing something here? Anyone else got this to work?

推荐答案

这个问题好像很久没有人回答了，我打赌你已经找到了解决方案，但对于那些还没有在这里的人，我的答案是:

Seems this question hasn't been answered for a long time, I bet you have already found a solution but for those who haven't here is my answer:

当我从我的代码中复制时，缩进全乱了;)

The indention got all messed up when i copied from my code ;)

<input type="hidden" name="tags" id="mySingleField" value="Apple, Orange" disabled="true">
Tags:<br>
<ul id="mytags"></ul>

<script type="text/javascript">
    jQuery(document).ready(function() {
    jQuery("#mytags").tagit({
        singleField: true,
        singleFieldNode: $('#mySingleField'),
        allowSpaces: true,
        minLength: 2,
        removeConfirmation: true,
        tagSource: function( request, response ) {
            //console.log("1");
            $.ajax({
                url: "search.php", 
                data: { term:request.term },
                dataType: "json",
                success: function( data ) {
                    response( $.map( data, function( item ) {
                        return {
                            label: item.label+" ("+ item.id +")",
                            value: item.value
                        }
                    }));
                }
            });
        }});
    });

实际上你可以在一些自动完成的 jQuery 示例中找到search.php".

and the "search.php" you can find this in some autocomplete jQuery examples actually.

<?php
$q = strtolower($_GET["term"]);
if (!$q) return;

$items = array(
    "Great Bittern"=>"Botaurus stellaris",
    "Little Grebe"=>"Tachybaptus ruficollis",
    "Black-necked Grebe"=>"Podiceps nigricollis",
    "Little Bittern"=>"Ixobrychus minutus",
    "Black-crowned Night Heron"=>"Nycticorax nycticorax",
    "Heuglin's Gull"=>"Larus heuglini"
);

function array_to_json( $array ){

    if( !is_array( $array ) ){
        return false;
    }

    $associative = count( array_diff( array_keys($array), array_keys( array_keys( $array )) ));
    if( $associative ){

        $construct = array();
        foreach( $array as $key => $value ){

        // We first copy each key/value pair into a staging array,
        // formatting each key and value properly as we go.

        // Format the key:
        if( is_numeric($key) ){
            $key = "key_$key";
        }
        $key = """.addslashes($key).""";

        // Format the value:
        if( is_array( $value )){
            $value = array_to_json( $value );
        } else if( !is_numeric( $value ) || is_string( $value ) ){
            $value = """.addslashes($value).""";
        }

        // Add to staging array:
        $construct[] = "$key: $value";
    }

    // Then we collapse the staging array into the JSON form:
    $result = "{ " . implode( ", ", $construct ) . " }";

} else { // If the array is a vector (not associative):

    $construct = array();
    foreach( $array as $value ){

        // Format the value:
        if( is_array( $value )){
            $value = array_to_json( $value );
        } else if( !is_numeric( $value ) || is_string( $value ) ){
            $value = "'".addslashes($value)."'";
        }

        // Add to staging array:
        $construct[] = $value;
    }

    // Then we collapse the staging array into the JSON form:
    $result = "[ " . implode( ", ", $construct ) . " ]";
}

return $result;
}

$result = array();
foreach ($items as $key=>$value) {
    if (strpos(strtolower($key), $q) !== false) {
    array_push($result, array("id"=>$value, "label"=>$key, "value" => strip_tags($key)));
}
if (count($result) > 11)
    break;
}
echo array_to_json($result);

?>

这篇关于试图让 tag-it 与 AJAX 调用一起工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！