值未正确存储在数组 $items 中

Question

我想用下面的代码获取每种注册类型的数量：

$registrationTypeDetails = Registration::with('participants:id,registration_type_id,registration_id')->find($regID);

$type_counts = [];
foreach ($registrationTypeDetails->participants as $p) {
    $name = $p->registration_type->name;
    if (!isset($type_counts[$name])) {
        $type_counts[$name] = 0;
    }
    $type_counts[$name]++;
}

dd($type_counts)，如果会议有 2 种可用的注册类型（普通和加号），并且用户正在与 2 名注册类型“普通”的参与者和 0 名注册类型“加号”的参与者进行注册显示：

 array:2 [▼
      "general" => 2
    ]

然后我需要向 API 发出一个 post 请求，需要在请求正文中发送每个注册类型的数量，在这种情况下，只有 1 个注册类型“一般”，数量的值应该是“ 2"。

所以我在上面的代码下面有这段代码来创建数组：

foreach ($registrationTypeDetails->participants as $registrationType) {
  $items['invoice']['items'][] = [
      'name' => $registrationType->registration_type->name,
      'unit_price' => $registrationType->registration_type->price,
      'quantity' => $type_counts[$registrationType->registration_type->name],
  ];
}
$create = $client->request('POST', 'https://...', [
    'query' => ['api_key' => '...'], 'json' => $items,
]);

但是输出数组是：

array:1 [▼
  "invoice" => array:4 [▼
    "client" => array:7 [▶]
    "items" => array:2 [▼
      0 => array:5 [▼
        "name" => "general"
        "unit_price" => 10
        "quantity" => 2
      ]
      1 => array:5 [▼
        "name" => "general"
        "unit_price" => 10
        "quantity" => 2
      ]
    ]
  ]
]

而不是只有一项：

array:1 [▼
  "invoice" => array:4 [▼
    "client" => array:7 [▶]
    "items" => array:2 [▼
      0 => array:5 [▼
        "name" => "general"
        "unit_price" => 10
        "quantity" => 2
      ]
    ]
  ]
]

$items 显示：

array:1 [▼
  "invoice" => array:4 [▼

    "items" => array:2 [▼
      1 => array:5 [▼
        "name" => "general"
        "unit_price" => 10
        "quantity" => 2
      ]
      2 => array:5 [▼
        "name" => "plus"
        "unit_price" => 0
        "quantity" => 2
      ]
    ]
  ]
]

Answer 1

您需要根据注册类型名称键入项目的结果：

foreach ($registrationTypeDetails->participants as $registrationType) {
  $items['invoice']['items'][$registrationType->registration_type->name] = [
      'name' => $registrationType->registration_type->name,
      'unit_price' => $registrationType->registration_type->price,
      'quantity' => $type_counts[$registrationType->registration_type->name],
  ];
}

如果有，最好使用registration_type的id：

foreach ($registrationTypeDetails->participants as $registrationType) {
  $items['invoice']['items'][$registrationType->registration_type->id] = [
      'name' => $registrationType->registration_type->name,
      'unit_price' => $registrationType->registration_type->price,
      'quantity' => $type_counts[$registrationType->registration_type->name],
  ];
}

说明

当您循环访问链接到注册类型的参与者时，多个参与者可能具有相同的注册类型。因此，在您的情况下，您需要根据注册类型对结果进行分组。只需添加到 items[] 即可附加到 items 数组。您想按注册类型对结果进行分组。

修复 422 验证错误

您的 items 是一个有效的数组，但因为它被转换为 json，1 和 1 将作为一个对象键入。要强制进行键调整，您可以执行以下操作：

// It is hacky but it re-keys the items array numerically.
$items['invoice']['items'] = array_values($list['invoice']['items']);