将数组结果查询从doctrine格式化为简单数组

时间:2015-05-01 09:43:43

标签: php arrays arraylist doctrine-orm doctrine-query

我有一个带有教义查询的控制器:

$em=$this->getDoctrine()->getManager();


$queryIndex = $em->createQuery( 'SELECT g.index
                                    FROM MySpaceMyBundle:Graphique g');

$result = $queryIndex->getScalarResult();

$resultArray = $result -> toArray();

$response = new Response();
$data = json_encode($resultArray);
$response->headers->set('Content-Type', 'application/json');
$response->setContent($data);

return $response;

但我有这个错误:

  

错误:在非对象500上调用成员函数toArray()   内部服务器错误 - FatalErrorException

但是如果我在我的控制器中尝试这个,它可以工作:         $ array = array(1,5,7,85,74,24,9,6,5,4,8555);

    $response = new Response();
    $data = json_encode($array);
    $response->headers->set('Content-Type', 'application/json');
    $response->setContent($data);

    return $response;

它返回给我:[1,5,7,85,74,24,9,6,5,4,8555]

我需要将查询结果渲染到数组中,才能将数据值传递给json for Highcharts。

更新

如果我继续浏览页面以查看json结果(请参阅下面的控件),我的查询结果如下:

[{"index":"1700.000"},{"index":"1200.000"},{"index":"1200.000"},{"index":"1304.000"},{"index":"1800.000"},{"index":"2012.000"},{"index":"2048.000"},{"index":"1048.000"},{"index":"3000.000"},{"index":"5421.000"}]

index 是我的数据库中列的名称,数字是我数据库中索引的

如果我制作var_dump,结果就是这样:

<pre class='xdebug-var-dump' dir='ltr'>
<b>array</b> <i>(size=10)</i>
  0 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'1700.000'</font> <i>(length=8)</i>
  1 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'1200.000'</font> <i>(length=8)</i>
  2 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'1200.000'</font> <i>(length=8)</i>
  3 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'1304.000'</font> <i>(length=8)</i>
  4 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'1800.000'</font> <i>(length=8)</i>
  5 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'2012.000'</font> <i>(length=8)</i>
  6 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'2048.000'</font> <i>(length=8)</i>
  7 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'1048.000'</font> <i>(length=8)</i>
  8 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'3000.000'</font> <i>(length=8)</i>
  9 <font color='#888a85'>=&gt;</font> 
    <b>array</b> <i>(size=1)</i>
      'index' <font color='#888a85'>=&gt;</font> <small>string</small> <font color='#cc0000'>'5421.000'</font> <i>(length=8)</i>
</pre>

就像我说的那样,结果是为了成为highchart.js的图形。这是我视图中的脚本:

$(document).ready(function() {
    var options = {
        chart: {
            renderTo: 'linechart',
            type: 'spline'
        },
        series: [{}]
    };

    var url =  "{{ path('myPage') }}";
    $.getJSON(url,  function(data) {
        options.series[0].data = data;
        var chart = new Highcharts.Chart(options);
    });
});

使用简单数组显示图形结果的高图,因为当我在控制器中使用以下代码进行测试时,结果显示正确:

 $array = array(1,5,7,85,74,24,9,6,5,4,8555);
 $response = new Response();
 $data = json_encode($array);
 $response->headers->set('Content-Type', 'application/json');
 $response->setContent($data);

 return $response;

它让我回复:

/*var_dump*/
<pre class='xdebug-var-dump' dir='ltr'>
<b>array</b> <i>(size=11)</i>
  0 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>1</font>
  1 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>5</font>
  2 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>7</font>
  3 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>85</font>
  4 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>74</font>
  5 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>24</font>
  6 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>9</font>
  7 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>6</font>
  8 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>5</font>
  9 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>4</font>
  10 <font color='#888a85'>=&gt;</font> <small>int</small> <font color='#4e9a06'>8555</font>
</pre>

/*json response*/
[1,5,7,85,74,24,9,6,5,4,8555]

而不是

[{"index":"1700.000"},{"index":"1200.000"},{"index":"1200.000"},{"index":"1304.000"},{"index":"1800.000"},{"index":"2012.000"},{"index":"2048.000"},{"index":"1048.000"},{"index":"3000.000"},{"index":"5421.000"}]

我想我需要将结果形成我的数据库,如下所示:

[1700.000, 1200.000,1200.000,1304.000,1800.000,2012.000,2048.000,1048.000,3000.000,5421.000]

3 个答案:

答案 0 :(得分:1)

事实上,问题在于数据。事实上,我看到两个问题:index对于Highcharts没有任何意义。应该有y。你的值也是字符串,而应该是数字。

或者,我认为简单的预处理就足够了:

$.getJSON(url,  function(data) {
    var d = [];
    $.each(data, function(i, e) {
         d.push(parseFloat(e.index)); // create format [y_0, y_1, ... ,y_N]
    });
    options.series[0].data = d;
    var chart = new Highcharts.Chart(options);
});

答案 1 :(得分:0)

来自文档:

Query#getScalarResult(): Retrieves a flat/rectangular result set of scalar values that can contain duplicate data. The pure/mixed distinction does not apply.

您的$result变量可能不是对象。在其上运行var_dump进行验证。这可能是您无法在其上调用->toArray()的原因。

答案 2 :(得分:0)

感谢stackoverflow developper,我找到了一个解决方案:check here

实际上我需要在我的json编码上使用第二个参数来删除双引号:

$data = json_encode($array, JSON_NUMERIC_CHECK);

非常感谢@Dawid Sajdak的回答。问题是我在数组中有字符串,或者我的数据库中的值是十进制类型。