本文介绍了迭代某些领域排序的学说集合的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要这样的东西:
$products = Products::getTable()->find(274);
foreach ($products->Categories->orderBy('title') as $category)
{
echo "{$category->title}<br />";
}
我知道这是不可能的，但是......如果不创建 Doctrine_Query，我怎么能做这样的事情?
I know is it not possible, but... How can I do something like this without creating a Doctrine_Query?
谢谢.
推荐答案
我只是在看同样的问题.您需要将 Doctrine_Collection 转换为数组:
I was just looking at the same problem. You need to convert the Doctrine_Collection into an array:
$someDbObject = Doctrine_Query::create()...;
$children = $someDbObject->Children;
$children = $children->getData(); // convert from Doctrine_Collection to array
然后你可以创建一个自定义排序函数并调用它:
Then you can create a custom sort function and call it:
// sort children
usort($children, array(__CLASS__, 'compareChildren')); // fixed __CLASS__
compareChildren 看起来像这样:
Where compareChildren looks something like:
private static function compareChildren($a, $b) {
// in this case "label" is the name of the database column
return strcmp($a->label, $b->label);
}
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