原则2：查询结果作为关联数组 [英] Doctrine 2: Query result as associative array

问题描述

在我的Repository类中，我使用以下代码来查询：

In my Repository class I use the following code to query:

$query = $this->getEntityManager()->createQuery("
    SELECT s.term, COUNT(s.term) AS freq
    FROM App\Entities\SearchTerm s
    GROUP BY s.term
    ORDER BY s.term ASC
");

$result = $query->getResult();

我得到的结果是这样的：

The result I get is something like:

array (size=4)
  0 => 
    array (size=2)
      'term' => string '' (length=0)
      'freq' => string '1' (length=1)
  1 => 
    array (size=2)
      'term' => string 'foo' (length=3)
      'freq' => string '1' (length=1)
  2 => 
    array (size=2)
      'term' => string 'bar' (length=3)
      'freq' => string '2' (length=1)
  3 => 
    array (size=2)
      'term' => string 'baz' (length=3)
      'freq' => string '2' (length=1)

但是我宁愿有一个关联数组结果：

But I would rather have an associative array as a result:

array (size=4)
  '' => string '1' (length=1)
  'foo' => string '1' (length=1)
  'bar' => string '2' (length=1)
  'baz' => string '2' (length=1)

这样可能没有额外的for-loop

Is this possible without an extra for-loop to build the desired array?

推荐答案

我知道它的旧，但今天我不得不做的几乎一样，我的解决方案没有自定义的hydrator

I know its old but today I had to do almost the same, my solution without a custom hydrator

• INDEX BY s.term


• 将getResult（）修改为确实

喜欢

$result = $query->getQuery()->getResult(\Doctrine\ORM\AbstractQuery::HYDRATE_ARRAY);

或

$result = $query->getQuery()->getResult(2);

• 格式化结果



as

$resultNeeded = array_map(function($value) { return $value['freq']; }, $result);

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