更新子文檔php mondodb庫

Question

我正在嘗試更新子文檔，但是我要刪除以前的內容，但我需要像數組推送那樣

$app->post('/addWidget', function (Request $request, Response $response, array $args) {
    $mongo = new Connection();
    $conn = $mongo->getConnection();
    $post_data = $request->getParsedBody();
    $result = $conn->find( [ 'user' => $post_data['user']], ['projection'=>['widgets'=>1]])->toArray();
    var_dump($result[0]['widgets']);
    $updateResult = $conn->updateOne(
        [ 'user' => $post_data['user'] ],
        [ '$set' => [ 'widgets' => [["name"=>$post_data['name'], "color"=>$post_data['color']]]]]
    );
});

可以使用updateOne函數更新子文檔嗎？

Answer 1

要將文檔推入數組時，需要$ push而不是$set 。

$updateResult = $conn->updateOne(
    [ 'user' => $post_data['user'] ],
    [ 
        '$push' => [
            'widgets' => [
                [
                    "name"=>$post_data['name'],
                    "color"=>$post_data['color']
                ]
            ]
        ] 
    ]
);