Laravel 6：批量插入与批量插入关系

Question

我有表 itineraries、meals 和 itinerary_meal。

Itineraries 与meals 表有多对多关系。

当dd($request->all()) 时，它为我提供了价值：

"product_itineraries" => array:3 [▼
    1 => array:6 [▼
      "itinerary_title_en" => "123123"
      "itinerary_title_th" => "123123"
      "day_number" => "1"
      "itinerary_description_en" => null
      "itinerary_description_th" => null
      "meal_type_id" => array:3 [▼
        0 => "1"
        1 => "2"
        2 => "3"
      ]
    ]

我可以像这样批量插入行程：

foreach ($request->product_itineraries as $product_itinerariesKey => $product_itineraries) {
    if (empty($product_itineraries)) {
        continue;
    }
    $productItineraryData[$product_itinerariesKey]['meal_type_id'] = $product_itineraries['meal_type_id'];
    $productItineraryData[$product_itinerariesKey]['product_id'] = $product->id;
    $productItineraryData[$product_itinerariesKey]['itinerary_title_en'] = $product_itineraries['itinerary_title_en'];
    $productItineraryData[$product_itinerariesKey]['itinerary_title_th'] = $product_itineraries['itinerary_title_th'];
    $productItineraryData[$product_itinerariesKey]['day_number'] = $product_itineraries['day_number'];
    $productItineraryData[$product_itinerariesKey]['itinerary_description_en'] = $product_itineraries['itinerary_description_en'];
    $productItineraryData[$product_itinerariesKey]['itinerary_description_th'] = $product_itineraries['itinerary_description_th'];
    $productItineraryData[$product_itinerariesKey]['created_at'] = $nowTime;
    $productItineraryData[$product_itinerariesKey]['updated_at'] = $nowTime;
}

if (!empty($productItineraryData) && count($productItineraryData) > 0) {
    ProductItinerary::insert($productItineraryData);
}

使用它，我现在无法批量插入相关的餐食类型，因为我没有获得产品行程 ID。 此外，我没有得到产品行程模型，因此无法使用餐（）关系保存

批量插入模型及其关系有什么解决方案吗？

Answer 1

我对您的数据结构和表/列名称做了一些假设，如果这实现了您正在寻找的批量插入，请告诉我：

$itineraries = [];
$relatedMeals = [];

foreach ($request->product_itineraries as $product_itinerariesKey => $product_itineraries) {
    if (empty($product_itineraries)) {
        continue;
    }

    $itinerary['product_id'] = $product->id;
    $itinerary['itinerary_title_en'] = $product_itineraries['itinerary_title_en'];
    $itinerary['itinerary_title_th'] = $product_itineraries['itinerary_title_th'];
    $itinerary['day_number'] = $product_itineraries['day_number'];
    $itinerary['itinerary_description_en'] = $product_itineraries['itinerary_description_en'];
    $itinerary['itinerary_description_th'] = $product_itineraries['itinerary_description_th'];
    $itinerary['created_at'] = $nowTime;
    $itinerary['updated_at'] = $nowTime;

    $itineraries[] = $itinerary;
    $relatedMeals[] = $product_itineraries['meal_type_id'];
}

DB::beginTransaction();

try {
    $itineraryId = ProductItinerary::sharedLock()->max('id') + 1;
    ProductItinerary::insert($itineraries);

    $relations = [];
    foreach ($relatedMeals as $mealIds) {
        foreach ($mealIds as $mealId) {
            $relations[] = [
                'product_itinerary_id' => $itineraryId,
                'meal_id' => $mealId,
            ];
        }
        $itineraryId++;
    }

    DB::table('product_itinerary_meal')->insert($relations);

    DB::commit();
} catch(Exception $e) {
    DB::rollback();
    throw $e;
}