是我的形式之一,并从数据库中获取值插入之前:
<form class="form-horizontal bordered-group" role="form" action="{{ route('invoice.update' , $invoice->id)}}" method="PUT" enctype="multipart/form-data">
{{ csrf_field() }}
<input name="_method" type="hidden" value="GET">
<div class="form-group clear"></div>
<div class="row">
<div class="form-group form-inline">
<label class="col-sm-4" >Subtotal: </label>
<div class="input-group col-sm-6">
<div class="input-group-addon">Tk.</div>
<input name="subtotal" type="number" class="form-control" id="subTotal" value="{{ $invoice->subtotal}}" required>
</div>
</div>
<div class="form-group form-inline">
<label class="col-sm-4"><button type="button" id="total" class="btn btn-primary">Total</button></label>
<div class="input-group col-sm-6">
<div class="input-group-addon">Tk.</div>
<input name="total" type="number" class="form-control" id="totalAmount" value="{{ $invoice->total}}" required>
</div>
</div>
</div>
</div>
<div class="modal-footer no-border clear">
<button type="button" class="btn btn-primary" data-dismiss="modal">Close</button>
<button type="submit" class="btn btn-success">Update</button>
</div>
</div>
和是我的控制器之一:
public function update($id)
{
$invoice = Invoice::find($id);
$invoice->subtotal = $request['subtotal'];
$invoice->total = $request['total'];
$invoice->save();
return redirect()->back()->with(['success' => 'Invoice Updtaed Successfully'] );
}
如何解决我的问题和更新我的数据库值??
更改代码为:
<form class="form-horizontal bordered-group" role="form" action="{{ route('invoice.update' , $invoice->id)}}" method="POST" enctype="multipart/form-data">
{{ csrf_field() }}
<input name="_method" type="hidden" value="Put">
形式的方法总是POST
。_method
输入元素包含HTTP动词(Put, Delete等)。
同时,你应该注入Request
对象使其工作:
public function update(Request $request, $id)
你正在指向$request,但是你没有传递这个变量,所以尝试:
public function update(Request $request, $id)
{
$invoice = Invoice::find($id);
$invoice->subtotal = $request->get('subtotal');
$invoice->total = $request->get('total');
$invoice->save();
return redirect()->back()->with(['success' => 'Invoice Updtaed Successfully'] );
}
或者,使用正确的验证和ACL创建您自己的Request类,并将其实例传递给您的更新方法。