如何在 Laravel 中提交具有空白或空值和非空白值的表单
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【中文标题】如何在 Laravel 中提交具有空白或空值和非空白值的表单【英文标题】：How to submit form with blank or empty values and non blank values in Laravel 【发布时间】：2021-11-15 17:27:33 【问题描述】：我有带有表单的模态弹出窗口，在提交表单时，我想插入用户选择或输入的任何数据。目前我无法提交表单，除非我填写所有字段并从下拉列表中选择任何值。
这是我的 html 代码：
<div id="feedbackModal" class="modal fade" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<form method="post" id="feedback_form" autocomplete="off">
<div class="modal-header">
<h4 class="modal-title"></h4>
</div>
<div class="modal-body">
csrf_field()
<span id="form_output"></span>
<div class="form-group">
<label>Adjust Risk Level:</label>
<select name="FeedRisklevel" id="FeedRisklevel" class="form-control">
<option value="">Select Risk Level</option>
<option value="High Risk">High Risk</option>
<option value="Low Risk">Low Risk</option>
</select>
</div>
<div class="form-group">
<label>Influencers:</label><br/>
<select name="Feedinfluencers[]" id="Feedinfluencers" multiple class="form-control">
<option value="Long Work Hours">Long Work Hours</option>
<option value="No Vacation/Leaves in Recent past">No Vacation/Leaves in Recent past</option>
<option value="Salary not per market standards">Salary not per market standards</option>
<option value="Lower Salary than Peers">Lower Salary than Peers</option>
<option value="No Bonus Received in last one year
">No Bonus Received in last one year</option>
<option value="No Salary Revision in last one year">No Salary Revision in last one year</option>
<option value="Expecting Relocation">Expecting Relocation</option>
<option value="Expecting Progression">Expecting Progression</option>
<option value="Looking for Role/Job/Unit change">Looking for Role/Job/Unit change</option>
<option value="Upskilling/Learning Programs Missing">Upskilling/Learning Programs Missing</option>
<option value="High Work Pressure/Stress">High Work Pressure/Stress</option>
<option value="Non-Alignment with Supervisors/Managers">Non-Alignment with Supervisors/Managers</option>
<option value="Lower Bonus received than expected in last one year">Lower Bonus received than expected in last one year</option>
<option value="Lower Salary Revision than expected in last one year">Lower Salary Revision than expected in last one year</option>
<option value="No Work Life Balance">No Work Life Balance</option>
<option value="Lack of Job Security">Lack of Job Security</option>
<option value="Lack of Recognition">Lack of Recognition
</option>
<option value="Lack of Career Opportunities">Lack of Career Opportunities</option>
<option value="Lack of Employee Care Activities">Lack of Employee Care Activities</option>
</select>
</div>
<div class="form-group">
<label>Employee Discussion Feedback:</label>
<input type="text" name="feedback" id="feedback" class="form-control" placeholder="Feedback" value="" />
</div>
<div class="form-group">
<label>Action Taken:</label>
<input type="radio" class="check" name="check" value="Yes">Yes
<input type="radio" class="check" name="check" value="No" checked>No
<select name="action[]" id="action" multiple class="action form-control">
<option value="Offcycle Salary Revision">Offcycle Salary Revision</option>
<option value="Special Bonus">Special Bonus</option>
<option value="Retention Bonus">Retention Bonus</option>
<option value="Internal Career Opportunity">Internal Career Opportunity</option>
<option value="Monthly/Quarterly Recognition">Monthly/Quarterly Recognition</option>
<option value="Inline Progression">Inline Progression</option>
<option value="Stay Interview">Stay Interview</option>
<option value="One on one discussion/Counselling">One on one discussion/Counselling</option>
<option value="Personal Development Plan">Personal Development Plan</option>
<option value="Relocation Opportunity">Relocation Opportunity</option>
<option value="Flexibility in the Schedule">Flexibility in the Schedule</option>
<option value="Upskilling/Learning Programs Scheduled">Upskilling/Learning Programs Scheduled</option>
<option value="Workload Balanced">Workload Balanced</option>
</select>
</div>
</div>
<div class="modal-footer">
<input type="hidden" name="feedback_id" id="feedback_id" value="" />
<input type="hidden" name="FeedRisklevel_id" id="FeedRisklevel_id" value="" />
<input type="hidden" name="Feedinfluencers_id" id="Feedinfluencers_id" value="" />
<input type="hidden" name="Action_id" id="Action_id" value="" />
<input type="hidden" name="button_action" id="button_action" value="insert" />
<input type="submit" name="submit" id="Feedback" value="Submit" class="btn" style="background-color: #CA0088;color: #fff" />
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>
</div>
这是我的脚本：
$('#feedback_form').on('submit', function(event)
event.preventDefault();
var form_data = $(this).serialize();
$.ajax(
url:" route('Predictions.store') ",
method:"POST",
data:form_data,
dataType:"json",
success:function(data)
if(data.error.length > 0)
var error_html = '';
for(var count = 0; count < data.error.length; count++)
error_html += "<div class='alert alert-danger'>"+data.error[count]+"</div>";
$('#form_output').html(error_html);
else
$('#form_output').html(data.success);
$('#feedback_form')[0].reset();
$('#feedback').val('');
$('#FeedRisklevel').val('');
$('#Feedinfluencers').val('');
$('#action').val('');
$('.modal-title').text('Submit Feedback');
$('#button_action').val('insert');
$('#members_data').DataTable().ajax.reload();
)
);
这是我的控制器：
public function store(Request $request)
// $validation = Validator::make($request->all(), [
// 'feedback' => 'required',
// 'FeedRisklevel' => 'required',
// 'Feedinfluencers' => 'required',
// 'action' => 'required'
// ]);
$error_array = array();
$success_output = '';
// if ($validation->fails())
//
// foreach ($validation->messages()->getMessages() as $field_name => $messages)
//
// $error_array[] = $messages;
//
//
// else
//
if($request->get('button_action') == 'insert')
$data = new Prediction([
'Feedback' => $request->get('feedback'),
'Feedinfluencers' => $request->get('Feedinfluencers'),
'FeedRisklevel' => $request->get('FeedRisklevel'),
'Action' => $request->get('action')
]);
$data->save();
$success_output = "<div class='alert alert-success'>Data Inserted</div>";
if($request->get('button_action') == 'update')
$data = Prediction::find($request->get('feedback_id'));
$data->Feedback = $request->get('feedback');
$data->save();
$data1 = Prediction::find($request->get('FeedRisklevel_id'));
$data1->FeedRisklevel = $request->get('FeedRisklevel');
$data1->save();
$data2 = Prediction::find($request->get('Feedinfluencers_id'));
$data2->Feedinfluencers = $request->get('Feedinfluencers');
$data2->save();
$data3 = Prediction::find($request->get('Action_id'));
$data3->Action = $request->get('action');
$data3->save();
$success_output = '<div class="alert alert-success">Thanks for your Feedback!</div>';
$output = array(
'error' => $error_array,
'success' => $success_output
);
echo json_encode($output);
我能够存储数据，但必须选择我需要的所有值，它应该提交用户选择的数据，如果它是空白的，它应该在数据库中插入空白数据。有人可以帮我看看我该怎么做吗？
【问题讨论】：
【参考方案1】：步骤1：首先将数据库表中的所有字段都设为可空。 第 2 步：之后将您的选择标签修改为：
<select name="Feedinfluencers[]" id="Feedinfluencers" multiple class="form-control">
> <option value="">Select</option>
<option value="Long Work Hours">Long Work Hours</option>
<option value="No Vacation/Leaves in Recent past">No Vacation/Leaves in Recent past</option>
.
.
</select>
第 3 步：根据您的代码更改其他选择：
<select name="action[]" id="action" multiple class="action form-control">
> <option value="">Select</option>
<option value="Offcycle Salary Revision">Offcycle Salary Revision</option>
<option value="Special Bonus">Special Bonus</option>
之后，您可以添加或更新可为空的字段
除此之外，如果您想直接添加或更新数据，您可以使用上面的代码： 第1步： 在 App\Model 中进行具体更改：
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Auth;
class Prediction extends Model
protected $table = 'prediction';
protected $primaryKey = 'id';
protected $guarded = ['id'];
第2步：之后你可以直接在控制器中使用：
public function store(Request $request)
if($request->get('button_action') == 'insert')
$param = $request->all();
$param['button_action'] = 'insert'; // if you want to overload you field with new data
$prediction= Prediction::create($param);
if($request->get('button_action') == 'update')
$param = $request->all();
$param['button_action'] = 'update'; // if you want to overload you field with new data
$prediction= Prediction::where('id',$id)->update($param);
以上是您的代码的 sn-p 示例，您可以根据需要使用它。
【讨论】：
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