为了保存对db的输入,我们可以使用：
$em->persist($entity); $em->flush();
但是,如何使用$this-> getEntityManager() – > createQuery()可以更新现有条目？
我们可以吗？
我正在为db中的现有条目搜索某种$em-> update().
解决方法
简单的做法,Fusselchen说的对,只是举个例子
// get entity manager
$em = $this->getDoctrine()->getEntityManager();
// get from this entity manager our "entity" \ object in $item
// also we can get arrayCollection and then do all in foreach loop
$item = $em->getRepository('repoName')->findOneBy($filter);
// change "entity" / object values we want to edit
$item->setSome('someText')
//...
// call to flush that entity manager from which we create $item
$em->flush();
// after that in db column 'some' will have value 'someText'
// btw after call flush we can still use $item as 'selected object' in
// another $em calls and it will have actual (some = 'someText') values
