Php 在Laravel 5.8中编辑和更新函数
我得到一个错误,它说 “此集合实例上不存在属性[id]。(视图:C:\newXampp\htdocs\testUser\resources\views\Stock\edit.blade.php)” 这是我的控制器Php 在Laravel 5.8中编辑和更新函数,php,laravel,laravel-5.8,Php,Laravel,Laravel 5.8,我得到一个错误,它说 “此集合实例上不存在属性[id]。(视图:C:\newXampp\htdocs\testUser\resources\views\Stock\edit.blade.php)” 这是我的控制器 public function editStock(Stock $id) { // $Stock = Stock::find($id); return view('Stock.edit', compact('Stock', 'id
public function editStock(Stock $id)
{
//
$Stock = Stock::find($id);
return view('Stock.edit', compact('Stock', 'id'));
// return response($stock);
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param \App\Stock $stock
* @return \Illuminate\Http\Response
*/
public function updateStock(Request $request, $id)
{
$request->validate([
'id'=>'required',
'stock_name'=>'required',
'stock_qty'=>'required',
'stock_unit'=>'required',
'stock_price_per_kg'=>'required',
'stock_weight_per_qty'=>'required'
]);
$stock = Stock::find($id);
$stock->stock_name = $request->get('stock_name');
$stock->stock_qty = $request->get('stock_qty');
$stock->stock_unit = $request->get('stock_unit');
$stock->stock_price_per_kg = $request->get('stock_price_per_kg');
$stock->stock_weight_per_qty = $request->get('stock_weight_per_qty');
$stock->save();
return redirect('/Stock/index/')->with('success', 'Stock updated!');
}
这是我的路线
//Route for Stock
Route::get('/Stock/createStock/', 'ChicController@createStock')->name('createStock');
Route::post('/Stock/createStock/', 'ChicController@storeStock')->name('storeStock');
Route::get('/Stock/index/', 'ChicController@indexStock')->name('indexStock');
Route::get('/Stock/edit/{id}', 'ChicController@editStock')->name('editStock');
Route::post('/Stock/edit/{id}', 'ChicController@updateStock')->name('updateStock');
Route::delete('/Stock/index/{id}', 'ChicController@destroyStock')->name('deleteStock');
这是我的edit.blade.php
@extends('layouts.app')
@section('content')
<div class="row">
<div class="col-sm-8 offset-sm-2">
<h1 class="display-3">Update a Stock</h1>
@if ($errors->any())
<div class="alert alert-danger">
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
<br />
@endif
<form method="post" action="{{ route('updateStock', $Stock->id) }}">
{{ csrf_field() }}
<div class="form-group">
<label for="stock_name">Stock Name:</label>
<input type="text" class="form-control" name="stock_name" value={{$Stock->stock_name }} />
</div>
<div class="form-group">
<label for="stock_qty">Stock Amount:</label>
<input type="number" class="form-control" name="stock_qty" value={{$Stock->stock_qty }} />
</div>
<div class="form-group">
<label for="stock_unit">Stock Unit:</label>
<select id="stock_unit" name="stock_unit" value={{$Stock->stock_unit}}>
<option value="Kg">Kg</option>
<option value="Qty">Qty</option>
</select>
</div>
<div class="form-group">
<label for="stock_price_per_kg">Price Per Kg:</label>
<input type="number" class="form-control" name="stock_price_per_kg" value={{$Stock->stock_price_per_kg }} />
</div>
<div class="form-group">
<label for="stock_weight_per_qty">Weight Per Qty:</label>
<input type="number" class="form-control" name="stock_weight_per_qty" value={{$Stock->stock_weight_per_qty }} />
</div>
<button type="submit" class="btn btn-primary">Update</button>
</form>
</div>
</div>
@endsection
@extends('layouts.app'))
@节(“内容”)
更新股票
@如果($errors->any())
@foreach($errors->all()作为$error)
- {{$error}}
@endforeach
@恩迪夫
{{csrf_field()}}
股票名称:
股票名称}}/>
库存量:
库存量}}/>
存货单位:
库存单位}}>
公斤
数量
每公斤价格:
库存价格每公斤}/>
每件重量:
库存(重量)每(数量)}/>
更新
@端部
我什么都试过了,但解决不了这个问题。当我尝试在编辑控制器中回显$id时,它会显示正确的$id。因此,我不知道如何解决此问题,我也不知道为什么会发生这种情况。对于您的
editStock
方法,由于正在进行隐式路由模型绑定,您已经从路由参数接收到一个与id
匹配的Stock
模型实例。当您将该$id
变量传递给Stock::find($id)
时,您传递的是一个可排列的模型。这会导致find
变成findMany
认为您正在传递许多ID。您最终会得到一个集合,因为:
public function editStock(Stock $id)
{
$Stock = Stock::find($id);
return view('Stock.edit', compact('Stock', 'id'));
}
$Stock
是一个集合,因为它向find
传递了许多。我会调整它,只将$id
变量传递给您想要的股票的视图
public function editStock(Stock $id)
{
return view('Stock.edit', [
'Stock' => $id,
]);
}
您的视图现在将有一个Stock
变量,它是您想要的Stock
错误表明编辑视图中的$Stock
是集合对象,而不是模型。你的控制器代码和你现在的一样吗?在查看之前,您是否尝试过在控制器中执行dd($Stock)
?@AkenRoberts是的,我的控制器与我发布的控制器完全相同。我将在哪里添加此dd($Stock)?