如何在Laravel中基于product_id遍历控制器

问题描述

我的Laravel-5.8中有这些模型

产品型号：

class Product extends Model
{
   protected $fillable = [
              'id','name',];
  public function invoice(){
    return $this->belongsToMany('App\Invoice');
 }
}

发票型号：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Invoice extends Model
{
    protected $fillable = [
              'id','customer_id','product_id','invoice_date','qty','price',];
    public function customer(){
        return $this->belongsTo('App\Customer');
    }
    public function product(){
        return $this->belongsToMany('App\Product');
    }
}

每张发票都有一个或多个产品。

发票管理员

public function create()
{
    $customers = Customer::all();
    $products = Product::all();
    return view('invoice.create',compact('customers','products'));
}

public function store(Request $request)
{
    $request->validate([

        'customer_id' => 'required','product_id' => 'required','qty' => 'required','price' => 'required',]);

    $invoice = new Invoice();
    $invoice->customer_id = $request->customer_id;

    .....

     return redirect('invoice/'.$invoice->id)->with('message','invoice created Successfully');
}

发票：create.blade

                    <form  method="POST" action="{{route('invoice.store')}}">
                        @csrf
                        <div class="form-group col-md-3">
                            <label class="control-label">Customer Name</label>
                            <select name="customer_id" class="form-control">
                                <option>Select Customer</option>
                                @foreach($customers as $customer)
                                    <option name="customer_id" value="{{$customer->id}}">{{$customer->name}} </option>
                                @endforeach
                            </select>                            </div>
                        <div class="form-group col-md-3">
                            <label class="control-label">Date</label>
                            <input name="invoice_date"  class="form-control datepicker"  value="<?php echo date('Y-m-d')?>" type="date" placeholder="Enter date">
                        </div>

                    <table class="table table-bordered">
                        <thead>
                        <tr>
                            <th scope="col">Product Name</th>
                            <th scope="col">Qty</th>
                            <th scope="col">Price</th>
                        </tr>
                        </thead>
                        <tbody>
                        <tr>
                            <td><select name="product_id[]" class="form-control productname" >
                                    <option>Select Product</option>
                                @foreach($products as $product)
                                        <option name="product_id[]" value="{{$product->id}}">{{$product->name}}</option>
                                    @endforeach
                                </select></td>
                            <td><input type="text" name="qty[]" class="form-control qty" ></td>
                            <td><input type="text" name="price[]" class="form-control price" ></td>
                         </tr>
                        </tbody>

                    </table>

                        <div >
                            <button class="btn btn-primary" type="submit">Submit</button>
                        </div>
                 </form>

从下图开始：

Product_id，数量，价格是数组。 我希望控制器迭代并计算产品数量，然后视图中的product_id，qty和price行将基于产品数量。然后所有内容都将保存在发票表中。

如何完成我的商店控制器代码来实现这一目标？

解决方法

尝试一下：

$products = $request->get('product_id');
$qte = $request->get('qty');
$price = $request->get('price');
foreach($products as $key=>$product){
    $invoice =Invoice::creeate([
        'product_id' => $product,'qte' => $qte[$key],'price' => $price[$key],...
    ]);

}