php - 没有 Eloquent 模型的左连接 Laravel

Question

我想把 Product 和 ProductPrice 表放在一起，但我的导师说不要使用 eloquent 关系。所以这是他说要使用的代码：

这是 App\Http\Controllers\Api\ProductController.php 中的一个函数，它使用了他的自定义左连接：

public function table($dproduct, $start, $search, $sortColumn, $sort, $index, $limit)
    {
        $result['dproduct'] = $dproduct;
        $result['data'] = array();
        $result['recordsFiltered'] = 0;
        $result['recordsTotal'] = 0;

        $product = new Product();
        $productResult = $product->getResult($search, $sortColumn, $sort, $index, $limit);

        if ($productResult['Total'] > 0) {
            $result["recordsFiltered"] = $productResult['Total'];
            $counter = $start;

            $data = array();
            foreach ($productResult['Data'] as $productData) {
                $counter++;
                $data[] = $this->set($counter, $productData);
            }

            $result["recordsTotal"] = $counter;
            $result["data"] = $data;
        } else {
            $result["error"] = $productResult['Message'];
        }

        return $result;
    }

这是实际的 ProductController（非 API）：

class ProductController extends Controller
{
    const PRODUCT = 'product';

    public function __construct()
    {
        return parent::authenticate();
    }

    public function index()
    {
        $admin = $this->getAdmin();

        $productView = $this->isView(ProductController::PRODUCT);
        $productCreate = $this->isCreate(ProductController::PRODUCT);
        $productUpdate = $this->isUpdate(ProductController::PRODUCT);
        $productDelete = $this->isDelete(ProductController::PRODUCT);

        if ($productView) {
            return parent::setCompactView(ProductController::PRODUCT, compact(
                'admin',
                'productView',
                'productCreate',
                'productUpdate',
                'productDelete'
            ));
        } else {
            return parent::setCompactView('error', compact('admin'));
        }
    }
}

这是我的产品型号：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use App\Http\Controllers\GlobalController;

class Product extends Model
{
    protected $table = 'Product';
    protected $primaryKey = 'Id';

    public $incrementing = false;

    const CREATED_AT = 'CreatedDate';
    const UPDATED_AT = 'UpdatedDate';

    public function getAll()
    {
        return self::where('Active', true)->get();
    }

    public function getById($Id)
    {
        return self::where('Id', $Id)->first();
    }

    public function getResult($search = '', $sortColumn = 0, $sort = '', $page = 0, $limit = 0)
    {
        if ($sortColumn == 1) {
            $sortColumn = 'Description';
        } else {
            $sortColumn = 'Name';
        }

        if ($sort == '') {
            $sort = 'asc';
        }

        $data = self::where(function ($query) use ($search) {
            return $query->where('Name', 'like', '%' . $search . '%')
                ->orWhere('Description', 'like', '%' . $search . '%');
        })
            ->skip(($page - 1) * 10)
            ->take($limit)
            ->orderBy($sortColumn, $sort)
            ->get();
        $count = self::where(function ($query) use ($search) {
            return $query->where('Name', 'like', '%' . $search . '%')
                ->orWhere('Description', 'like', '%' . $search . '%');
        })->get()->count();

        $result['Data'] = $data;
        $result['Total'] = $count;

        if ($count <= 0) {
            $result['Message'] = GlobalController::TEXT_NO_DATA;
        }

        return $result;
    }

    public function getTotal()
    {
        return self::get()->count();
    }

    public function setDelete($id)
    {
        return self::where('Id', $id)->delete();
    }
}

这是我的 ProductPrice 模型：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use App\Http\Controllers\GlobalController;

class ProductPrice extends Model
{
    protected $table = 'ProductPrice';
    protected $primaryKey = 'Id';
}

ProductPrice 还没有控制器，因为我真的不明白要输入什么。

Product 表有这些表：

        Schema::create('Product', function (Blueprint $table) {
            $table->uuid('Id')->primary();
            $table->uuid('CategoryId')->nullable();
            $table->string('Name', 60)->charset('utf8');
            $table->mediumText('Description')->charset('utf8')->nullable();
            $table->uuid('CreatedId')->nullable();
            $table->timestamp('CreatedDate')->useCurrent();
            $table->uuid('UpdatedId')->nullable();
            $table->timestamp('UpdatedDate')->useCurrent();
        });

        Schema::table('Product', function ($table) {
            $table->foreign('CategoryId')->references('Id')->on('Category')->onDelete('set null');
            $table->foreign('CreatedId')->references('Uid')->on('Admin')->onDelete('set null');
            $table->foreign('UpdatedId')->references('Uid')->on('Admin')->onDelete('set null');
        });

ProductPrice 是这样的：

        Schema::create('ProductPrice', function (Blueprint $table) {
            $table->uuid('Id')->primary();
            $table->uuid('ProductId');
            $table->integer('Price')->default(0);
            $table->integer('CutPrice')->default(0);
            $table->integer('SpecialPrice')->default(0);
            $table->smallInteger('Discount')->default(0);
            $table->uuid('CreatedId')->nullable();
            $table->timestamp('CreatedDate')->useCurrent();
            $table->uuid('UpdatedId')->nullable();
            $table->timestamp('UpdatedDate')->useCurrent();
        });

        Schema::table('ProductPrice', function ($table) {
            $table->foreign('ProductId')->references('Id')->on('Product')->onDelete('cascade');
            $table->foreign('CreatedId')->references('Uid')->on('Admin')->onDelete('set null');
            $table->foreign('UpdatedId')->references('Uid')->on('Admin')->onDelete('set null');
        });

我的问题是，我需要做什么才能在 ProductId 上将它们作为外键连接在一起，然后在同一个表视图的视图中显示它们？