小编Poo*_*aan的帖子

我有一个订单表，我之前创建了这个表，但一段时间后我必须更改我的迁移。

这是更改前我的订单表：

Schema::create('orders', function (Blueprint $table) {
        $table->id();

        $table->unsignedBigInteger('user_id');
        $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');

        $table->bigInteger('price');
        $table->enum('status', ['unpaid', 'paid', 'preparation', 'posted', 'recieved', 'canceled']);
        $table->string('tracking_serial')->nullable();

        $table->timestamps();
    });

    Schema::create('order_product', function (Blueprint $table) {
        $table->unsignedBigInteger('product_id');
        $table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');

        $table->unsignedBigInteger('order_id');
        $table->foreign('order_id')->references('id')->on('orders')->onDelete('cascade');

        $table->integer('quantity');

        $table->primary(['product_id', 'order_id']);
    });

这是更改后的订单表：

Schema::create('orders', function (Blueprint $table) {
        $table->id();

        $table->unsignedBigInteger('user_id');
        $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');

        $table->unsignedBigInteger('address_id');
        $table->foreign('address_id')->references('id')->on('addresses')->onDelete('cascade');

        $table->bigInteger('price');
        $table->string('post_type');
        $table->enum('status', ['unpaid', 'paid', 'preparation', 'posted', 'recieved', 'canceled']);
        $table->string('tracking_serial')->nullable();

        $table->primary(['user_id', 'address_id']);

        $table->timestamps();
    });

    Schema::create('order_product', function (Blueprint $table) {
        $table->unsignedBigInteger('product_id');
        $table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');

        $table->unsignedBigInteger('order_id');
        $table->foreign('order_id')->references('id')->on('orders')->onDelete('cascade');

        $table->integer('quantity');

        $table->primary(['product_id', 'order_id']);
    });

正如你所看到的，我在ordersschema 中导入了 3 …

我有一个模型叫做BrandCodeModell：

<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class BrandCodeModell extends Model
{
    use HasFactory;

    public function brand()
    {
        return $this->belongsTo(Brand::class, 'brand_id', 'id');
    }

    public function modell()
    {
        return $this->belongsTo(Modell::class, 'modell_id', 'id');
    }

    public function codeModell()
    {
        return $this->belongsTo(CodeModell::class, 'code_id', 'id');
    }
}

这是Modell与 Model 的关系Brand：

public function modells()
{
   return $this->belongsToMany(Modell::class)->using(BrandCodeModell::class)
     ->withPivot('code_id');
}

当我尝试将新模型添加到数据库时，我收到此错误：

BadMethodCallException
Call to undefined method App\Models\BrandCodeModell::fromRawAttributes()

这是我将模型保存到数据库的控制器：

    $brand = Brand::where('id', $id)->first();

    $brand->modells()->detach();

    $modells = collect($request['modells']);

    $modells->each(function ($item) use ($brand) …