Laravel将值从下拉列表发送到控制器

问题描述：

I have the following code in my view page

 <form action="{{ action('AnswerController@handleCreate') }}" method="post" role="form">
        <div class="form-group dropdown">
            <label for="question">Question</label>
            <select  id="question" class="drop" name="question">
                @foreach($questions as $question)

                    <option value="{{$question->question}}">{{$question->question}}</option>

                @endforeach
            </select>
        </div>

in my controller i have the following code

$question = Question::whereQuestion(Input::get('question'))->first();

$n = $question->id;

They give me an error at $n=$question ->id telling trying to get property of non-object

我在视图页面中有以下代码 p>

 ＆lt  ; form action =“{{action（'AnswerController @ handleCreate'）}}”method =“post”role =“form”＆gt; 
＆lt; div class =“form-group dropdown”＆gt; 
＆lt; label  for =“question”＆gt;问题＆lt; / label＆gt; 
＆lt; select id =“question”class =“drop”name =“question”＆gt; 
 @foreach（$ questions as $ question）
 
＆lt  ; option value =“{{$ question-＆gt; question}}”＆gt; {{$ question-＆gt; question}}＆lt; / option＆gt; 
 
 @endforeach 
＆lt; / select＆gt; 
＆lt;  / div＆gt; 
  code>  pre> 
 
 在我的控制器中我有以下代码 p> 
 
 
  $ question = Question :: whereQuestion（ 输入:: get（'问题'）） - ＆gt; first（）; 
 
 $ n = $ question-＆gt; id; 
  code>  pre> 
 
 他们给出 我错误$ n = $ question  - ＆gt; id告诉我试图获取非对象的属性 p> 
  div>

答

Instead of using the question text as value and query the id it afterwards why don't you just set the id as value from the beginning?

<select  id="question" class="drop" name="question">
    @foreach($questions as $question)
        <option value="{{$question->id}}">{{$question->question}}</option>
    @endforeach
</select>

And then you can just do Input::get('question') and you have the id of the selected question. If you then wanted to get the full model:

$questionId = Input::get('question');
$question = Question::find($questionId);

Laravel将值从下拉列表发送到控制器

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