如何在laravel 5中更新數組？

Question

我想從數組中更新值。 我可以創建，但如果我嘗試更新，它只更新最後一個值。 如果我使用save（），我得到一個錯誤。我嘗試了一切可以研究的東西。沒有成功。 這是我的代碼。

$products = $request->all(); 

     $name = $products['name']; 
     $price = $products['price']; 
     $qty = $products['qty']; 
     $total = $products['total']; 

    foreach($name as $key => $n) { 

     $invoice->products()->update([ 

      'invoice_id' => $invoice->id, 
      'name' => $name[$key], 
      'price' => $price[$key], 
      'qty' => $qty[$key], 
      'total' => $total[$key] 
     ]); 



    } 

，如果我使用保存（）我得到這個錯誤

Argument 1 passed to Illuminate\Database\Eloquent\Relations\HasOneOrMany::save() must be an instance of Illuminate\Database\Eloquent\Model, array given, 

感謝

Answer 1

$products = $request->all(); 


     $name = $products['name']; 
     $price = $products['price']; 
     $qty = $products['qty']; 
     $total = $products['total']; 

    foreach($name as $key => $n) { 

     $invoice->products()->create([ 

      'invoice_id' => $invoice->id, 
      'name' => $name[$key], 
      'price' => $price[$key], 
      'qty' => $qty[$key], 
      'total' => $total[$key] 
     ]); 
    } 

Answer 2

我還是有些懷疑，但我發現一些東西，我覺得可以幫助你。

$invoice->products()->update($request->all()); 

Answer 3

感謝您的幫助金字塔先生。這裏是代碼：

public function update(Request $request, $id) 
{ 

    $invoice = Invoice::findOrFail($id); 

    $invoice->invoice_no = $request->invoice_no; 
    $invoice->client = $request->client; 
    $invoice->title = $request->title; 
    $invoice->client_address = $request->client_address; 
    $invoice->invoice_date = $request->invoice_date; 
    $invoice->due_date = $request->due_date; 
    $invoice->subtotal = $request->subtotal; 
    $invoice->grandtotal = $request->grandtotal; 

    $invoice->save(); 

    $products = $request->all(); 


     $name = $products['name']; 
     $price = $products['price']; 
     $qty = $products['qty']; 
     $total = $products['total']; 

    foreach($name as $key => $n) { 

     $invoice->products()->update([ 

      //=> $invoice->id, 
      'name' => $name[$key], 
      'price' => $price[$key], 
      'qty' => $qty[$key], 
      'total' => $total[$key] 
     ]); 
    } 




    Session::flash('success', 'Invoice Updated'); 

    return redirect()->route('invoices'); 

} 

與此準確的代碼，我可以創建和工作正常，但如果我用它來更新它不會讓我。

數據庫

Schema::create('invoices', function (Blueprint $table) { 
     $table->increments('id'); 
     $table->integer('invoice_no'); 
     $table->date('invoice_date'); 
     $table->date('due_date'); 
     $table->string('title'); 
     $table->string('client'); 
     $table->string('client_address'); 
     $table->decimal('subtotal'); 
     $table->decimal('grandtotal'); 
     $table->timestamps(); 
    }); 

產品

Schema::create('products', function (Blueprint $table) { 
     $table->increments('id'); 
     $table->integer('invoice_id')->unsigned(); 
     $table->string('name'); 
     $table->string('qty'); 
     $table->string('price'); 
     $table->string('total'); 
     $table->timestamps(); 
    }); 

關係

class Invoice extends Model { 
protected $fillable =['client','client_address','title','invoice_no','invoice_date','due_date','discount', 'subtotal','grandtotal']; 



public function products(){ 

    return $this->hasMany('App\Product', 'invoice_id'); 
} 

}

class Product extends Model 
{ 

protected $casts = [ 
    'name' => 'array', 
    'price' => 'array', 
    'qty' => 'array', 
    'total' => 'array' 
]; 
protected $fillable = ['invoice_id','price','qty','total','name']; 


public function invoice(){ 

    return $this->belongsTo('App\Invoice'); 

} 
} 

謝謝