在 Laravel 中获取编辑表单上的选定选项
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/45268471/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Getting selected option on edit form in laravel
提问by Robert Nicjoo
I have an editable form for my website orders and I have these fields:
我的网站订单有一个可编辑的表单，我有以下字段：
Userquantitynotestatus
Userquantitynotestatus
I also have other options in this form, but only these fields are important to me in order to be able to get the default values.
我在此表单中还有其他选项，但只有这些字段对我来说很重要，以便能够获得默认值。
For example, I want to be able to see the amount of quantity that a user has ordered by default and then I could change it or leave it alone. Currently all my drop-down values start from the first value and not what the user has chosen.
例如，我希望能够查看用户默认订购的数量，然后我可以更改它或不理会它。目前我所有的下拉值都从第一个值开始，而不是用户选择的值。
How can I do that?
我怎样才能做到这一点？
This is my form:
这是我的表格：
{{ Form::model($order, array('route' => array('orders.update', $order->id), 'method' => 'PUT', 'files' => true)) }}
<div class="form-group">
<label class="col-md-3 control-label" for="type">Order ID</label>
<div class="col-md-9 inputGroupContainer">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-file-word-o"></i></span>
<input class="form-control" type="text" name="" value="{{ $order->id }}" readonly>
</div>
</div>
</div>
<div class="form-group">
<label class="col-md-3" for="invoice_nu">Invoice Number:</label>
<div class="col-md-9 inputGroupContainer">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-sort-numeric-asc"></i></span>
<input class="form-control" type="text" name="invoice_nu" value="{{ $order->invoice_nu }}" readonly>
</div>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label" for="type">User</label>
<div class="col-md-9 inputGroupContainer">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-user-o"></i></span>
<select class="form-control" id="type" name="user_id">
@foreach($users as $user)
<option value="{{ $user->id }}">{{ $user->name }}</option>
@endforeach
</select>
</div>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label" for="type">Quantity</label>
<div class="col-md-9 inputGroupContainer">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-file-code-o"></i></span>
<select class="form-control" id="type" name="quantity">
<option value="">Select Quantity</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select>
</div>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label" for="type">Note</label>
<div class="col-md-9 inputGroupContainer">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-file-word-o"></i></span>
<textarea name="name" class="form-control" rows="8">@if(!empty($order->note)){{ $order->note }}@else-@endif</textarea>
</div>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label" for="type">Status</label>
<div class="col-md-9 inputGroupContainer">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-file-code-o"></i></span>
<select class="form-control" id="type" name="status">
<option value="Waiting Payment">Waiting Payment</option>
<option value="Paid">Paid</option>
</select>
</div>
</div>
</div>
{{ Form::submit('Save', array('class' => 'btn btn-primary mt-20')) }}
{{ Form::close() }}
回答by bhill77
you can compare $order->quantitywith option value to add selectedattribute
您可以$order->quantity与选项值进行比较以添加selected属性
<select class="form-control" id="type" name="quantity">
<option value="">Select Quantity</option>
<option value="1" {{ $order->quantity == 1 ? 'selected' : '' }}>1</option>
<option value="2" {{ $order->quantity == 2 ? 'selected' : '' }}>2</option>
<option value="3" {{ $order->quantity == 3 ? 'selected' : '' }}>3</option>
<option value="4" {{ $order->quantity == 4 ? 'selected' : '' }}>4</option>
<option value="5" {{ $order->quantity == 5 ? 'selected' : '' }}>5</option>
</select>
for user compare $user->idwith $order->user_id(or something else according your data)
用户比较$user->id与$order->user_id（或别的东西，根据您的数据）
<select class="form-control" id="type" name="user_id">
@foreach($users as $user)
<option value="{{ $user->id }}" {{ $user->id == $order->user_id ? 'selected' : '' }}>{{ $user->name }}</option>
@endforeach
</select>
回答by Svetoslav Dimitrov
Check if you have quatity and then add selected attribute to respective option.
检查您是否有 quatity，然后将选定的属性添加到相应的选项。
<select class="form-control" id="type" name="quantity">
@if($order->quantity)
<option value="{{$order->quantity}}" selected>{{$order->quantity}}</option>
@else
<option value="">Select Quantity</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
@endif
</select>
