如何更新嵌套 Laravel collection 中的嵌套值

Question

我有一个 deployments Laravel Collection 这样的：

Illuminate\Support\Collection {#415 ▼
  #items: array:5 [▼
    0 => array:7 [▼
      "id" => 31
      "status" => "active"
      "name" => "Deployment 1"
      "spots" => array:4 [▼
        0 => array:2 [▼
          "id" => 33
          "status" => "active"            <-- Want to change this
        ]
        1 => array:2 [▶]
        2 => array:2 [▶]
        3 => array:2 [▶]
      ]
      "data" => array:3 [▶]
    ]
    1 => array:7 [▶]
    2 => array:7 [▶]
    3 => array:7 [▶]
    4 => array:7 [▶]
  ]
}

我想将嵌套的 status 值更新为 inactive。我使用了 Laravel map 函数，但它似乎只适用于具有一层嵌套的 collections 。所以这个...

$this->deployments->map(function ($deployment) {
    $deployment['spots'][0]['status'] = 'inactive';
});
dd($this->deployments);

...保持 $this->deployments 不变。

还尝试使用嵌套 map 函数在第二层获得 Call to a member function map() on array 异常，因为第二层和下一个嵌套层被视为数组...

有什么想法吗？提前致谢。

Answer 1

使用 map 方法，您就快成功了。您将必须 return 在 $deployment 中所做的更改，并在最后执行 ->all() 以使用修改后的值更新集合。

更新单点：

$deployments = $deployments->map(function($deployment){
    $deployment['spots'][0]['status'] = 'inactive';
    return $deployment;
  })->all();

更新所有景点：

$deployments = $deployments->map(function($deployment){
    foreach($deployment['spots'] as &$spot){
      $spot['status'] = 'inactive';
    }
    return $deployment;
  })->all();

Answer 2

对于任何研究这个的人来说，一个更优雅的解决方案可能是：

更新单点：

$data = $deployments->all();
$deployments = data_set($data, 'spots.0.status', 'inactive');

更新所有景点：

$data = $deployments->all();
$deployments = data_set($data, 'spots.*.status', 'inactive');

如何更新嵌套 Laravel collection 中的嵌套值

How to update a nested value within a nested Laravel collection

php

laravel

eloquent

laravel-collection