假设我有一个模型"Question"。每个问题都由用户(当前用户)创建。如何"自动"更新createdBy
到current.user
在Doctrine2中,我应该有依赖于security.context
的事件侦听器。事件将订阅preSave()
,设置$question->setCreatedBy( $context->getToken()->getUser());
如何实现这与Propel2 ?我可以在控制器中设置createdBy
,但这是丑陋的:(
我可以编写自定义行为,但如何从行为访问security.context
?
半年后我找到了可行的解决方案:)
想法:模型将为Event Dispatcher
注入setter。在pre-save
模型将触发事件(验证/用户注入等)。这样我就需要ED来保存。我可以选择对象从数据库没有注入ED。依赖管理器将管理"存储库"。Repo将能够向模型注入所有必需的依赖项,然后调用save。$depepndanciesManager->getModelRepo->save($model)
。女巫就行了。
$model->setEventDispacher($this->getEventDispacher);
$model->save();
模型示例:
class Lyric extends BaseLyric
{
private $eventDispacher;
public function preSave(ConnectionInterface $con = null)
{
if (!$this->validate()) {
// throw exception
}
$this->notifyPreSave($this);
return parent::preSave($con);
}
private function getEventDispacher()
{
if ($this->eventDispacher === null) {
throw new Exception('eventDispacher not set');
}
return $this->eventDispacher;
}
public function setEventDispacher(EventDispacher $eventDispacher)
{
$this->eventDispacher = $eventDispacher;
}
private function notifyPreSave(Lyric $lyric)
{
$event = new LyricEvent($lyric);
$this->getEventDispacher()->dispatch('tekstove.lyric.save', $event);
}
}
存储库示例:
class LyricRepository
{
private $eventDispacher;
public function __construct(EventDispacher $eventDispacher)
{
$this->eventDispacher = $eventDispacher;
}
public function save(Lyric $lyric)
{
$lyric->setEventDispacher($this->eventDispacher);
$lyric->save();
}
}
来自控制器的示例用法:
public function postAction(Request $request)
{
$repo = $this->get('tekstove.lyric.repository');
$lyric = new TekstoveApiBundleModelLyric();
try {
$repo->save($lyric);
// return ....
} catch (Exception $e) {
// ...
}
}
示例配置:
tekstove.lyric.repository:
class: TekstoveApiBundleModelLyricLyricRepository
arguments: ["@tekstove.event_dispacher"]
Config基于symfony框架。真正的实现:
- config -在这里输入链接描述
- 模型-在这里输入链接描述
- 控制器-在这里输入链接描述
- "Repo"的工厂输入链接描述在这里
链接可能无法工作,项目正在积极开发中!