Laravel eloquent：更新模型及其关系
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Laravel eloquent: Update A Model And its Relationships
提问by user3518571
With an eloquent model you can update data simply by calling
使用 eloquent 模型，您可以通过调用简单地更新数据
$model->update( $data );
But unfortunately this does not update the relationships.
但不幸的是，这并没有更新关系。
If you want to update the relationships too you will need to assign each value manually and call push()then:
如果您也想更新关系，您将需要手动分配每个值并调用push()然后：
$model->name = $data['name'];
$model->relationship->description = $data['relationship']['description'];
$model->push();
Althrough this works it will become a mess if you have a lot of data to assign.
如果您要分配大量数据，则在整个工作过程中它会变得一团糟。
I am looging for something like
我正在寻找类似的东西
$model->push( $data ); // this should assign the data to the model like update() does but also for the relations of $model
Can somebody please help me out?
有人可以帮我吗？
回答by Marius L
You can implement the observer patternto catch the "updating" eloquent's event.
您可以实现观察者模式来捕捉“更新”雄辩的事件。
First, create an observer class:
首先，创建一个观察者类：
class RelationshipUpdateObserver {
public function updating($model) {
$data = $model->getAttributes();
$model->relationship->fill($data['relationship']);
$model->push();
}
}
Then assign it to your model
然后将其分配给您的模型
class Client extends Eloquent {
public static function boot() {
parent::boot();
parent::observe(new RelationshipUpdateObserver());
}
}
And when you will call the update method, the "updating" event will be fired, so the observer will be triggered.
当你调用 update 方法时，“更新”事件将被触发，因此观察者将被触发。
$client->update(array(
"relationship" => array("foo" => "bar"),
"username" => "baz"
));
See the laravel documentationfor the full list of events.
有关事件的完整列表，请参阅laravel 文档。
回答by The Alpha
You may try something like this, for example a Clientmodel and an Addressrelated model:
你可以尝试这样的事情，例如一个Client模型和一个Address相关的模型：
// Get the parent/Client model
$client = Client::with('address')->find($id);
// Fill and save both parent/Client and it's related model Address
$client->fill(array(...))->address->fill(array(...))->push();
There are other ways to save relation. You may check this answerfor more details.
还有其他方法可以保存关系。您可以查看此答案以获取更多详细信息。
