在Laravel中将值从Form和Controller传递到Blade的问题

Question

我将值从地址localhost/ product /1/1发送到我的数据库时出现问题，我希望将产品1附加到客户1，并在下面添加特殊价格我添加代码

路由：

Route::get('/product/{customerID}/{productID}', 'CustomerController@insertCustomerProductForm')->name('add-product');
Route::post('/product/{customerID}/{productID}', 'CustomerController@insertCustomerProductAction');
to Controller

insertCustomerProductForm方法：

public function insertCustomerProductForm($customerID, $productID)

{       
       return view('customer_products.create', [
        'customer' => Customer::find('$customerID'),
        'product' => Product::find('$productID'),        ]);    }

insetCustomerProductAction方法：

public function insertCustomerProductAction (Request $request, $customerID, $productID) {        

    $newCustomerProduct = new CustomerProduct;
    $newCustomerProduct->product_id = $productID;
    $newCustomerProduct->customer_id = $customerID;
    $newCustomerProduct->selling_customer_price = $request->input('selling_customer_price'); 
    $newCustomerProduct->purchase_customer_price = $request->input('purchase_customer_price'); 
    $newCustomerProduct->consumed_customer_price = $request->input('consumed_customer_price'); 
    $newCustomerProduct->save();    }

模型CustomerProduct

class CustomerProduct extends Model
{
public function customers()

{
    return $this->belongsToMany(Customer::class);

}

public function products()

{
    return $this->belongsToMany(Product::class);

}}

当我尝试在刀片式服务器中为客户的产品设置值时，我只有from表格值(selling_customer_price...等)没有关于产品和客户的内容？我不知道为什么或者这个find方法有问题？因为我必须在这个表格中存储特殊客户的特价。

下面我将添加部分刀片代码

@extends('layouts.app')

@section('content')

<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Dodaj Produkt') }}  </div>

                <div class="card-body">
                    <form method="post">
                        @csrf

                <div class="form-group row">
                          {{ $customer }}



                   <label for="selling_customer_price " class="col-md-4 col-form-label text-md-right">{{ __('Cena Sprzedaży') }}</label>

                            <div class="col-md-6">
                                <input id="selling_customer_price " type="text" class="form-control{{ $errors->has('selling_customer_price ') ? ' is-invalid' : '' }}" name="selling_customer_price " value="" required autofocus>

                                @if ($errors->has('selling_customer_price '))
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $errors->first('selling_customer_price ') }}</strong>
                                    </span>
                                @endif
                            </div>

我的错误看起来好像看不到表单中的变量：

selling_customer_price、purchase_customer_price、consumed_customer_price

我有错误：

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'selling_customer_price' cannot be null (SQL: insert into `customer_products` (`product_id`, `customer_id`, `selling_customer_price`, `purchase_customer_price`, `consumed_customer_price`, `updated_at`, `created_at`) values (1, 1, , , , 2018-07-09 12:39:03, 2018-07-09 12:39:03))