php - Laravel 过滤一对多关系

Question

我正在尝试过滤具有一对多关系的模型的查询，但它不起作用。正确的输出应该删除所有过期的股票，但它会返回所有可用的股票。

产品:hasMany(Stock::class)
库存:belongsTo(Product::class)

代码:

$keyword = $request->keyword;
$data = Product::with('stocks')
            ->where([
                ['pharmacy_id', '=', auth()->user()->pharmacy->id],
            ])
            ->where(function($productModel) use($keyword) {
                $productModel->where('name', 'LIKE', "%$keyword%")->orWhere('sku', 'LIKE', "%$keyword%");
            })
            ->whereHas('stocks', function($stockModel) {
                $stockModel->where('expiry', '>', Carbon::now()->format('Y-m-d'));
            })->get();

当前输出:

[
  {
    "id": 1,
    "sku": "xpzidfa1454995",
    "name": "Jaqueline Will",
    "category": "medicine",
    "type": "manufactured",
    "selling_price": "1.00",
    "pharmacy_id": 1,
    "created_at": "2020-12-22T11:40:32.000000Z",
    "updated_at": "2020-12-22T11:40:32.000000Z",
    "stocks": [
      {
        "id": 3,
        "product_id": 1,
        "expiry": "2025-10-10",
        "amount": 40,
        "supplier_id": 1,
        "pharmacy_id": 1,
        "created_at": "2020-12-22T11:45:39.000000Z",
        "updated_at": "2020-12-22T11:45:39.000000Z"
      },
      {
        "id": 5,
        "product_id": 1,
        "expiry": "2020-10-10",
        "amount": 40,
        "supplier_id": 1,
        "pharmacy_id": 1,
        "created_at": "2020-12-22T11:45:39.000000Z",
        "updated_at": "2020-12-22T11:45:39.000000Z"
      }
    ]
  }
]

正确输出:

[
  {
    "id": 1,
    "sku": "xpzidfa1454995",
    "name": "Jaqueline Will",
    "category": "medicine",
    "type": "manufactured",
    "selling_price": "1.00",
    "pharmacy_id": 1,
    "created_at": "2020-12-22T11:40:32.000000Z",
    "updated_at": "2020-12-22T11:40:32.000000Z",
    "stocks": [
      {
        "id": 3,
        "product_id": 1,
        "expiry": "2025-10-10",
        "amount": 40,
        "supplier_id": 1,
        "pharmacy_id": 1,
        "created_at": "2020-12-22T11:45:39.000000Z",
        "updated_at": "2020-12-22T11:45:39.000000Z"
      }
    ]
  }
]

库存型号:

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Stock extends Model
{
    use HasFactory;

    protected $fillable = [
        'product_id',
        'expiry',
        'amount',
        'supplier_id',
        'pharmacy_id',
    ];

    public function pharmacy() {
        return $this->belongsTo(Pharmacy::class);
    }

    public function product() {
        return $this->belongsTo(Product::class);
    }
}

Answer 1

要删除过期的库存记录，应对急切加载施加约束

$keyword = $request->keyword;
$data = Product::with(['stocks' => fn($query) => $query->whereDate('expiry', '>', now())])
    ->where([
        ['pharmacy_id', '=', auth()->user()->pharmacy->id],
    ])
    ->where(function($productModel) use($keyword) {
        $productModel->where('name', 'LIKE', "%$keyword%")->orWhere('sku', 'LIKE', "%$keyword%");
    })
    ->get();