如果字段失败，则提交后在 laravel 中动态保留数据表单

Question

如何在提交和请求失败后在 Laravel 7 中动态保留所有数据。单击（按钮添加更多）后动态创建的所有表单被删除仅保留第一个表单并收集所有旧数据我的问题。

1- 如何保持动态创建的所有表单

2 - 如何保留所有数据

剑刃形态

    <!DOCTYPE html>
<html>
<head>
    <title>Add/remove multiple input fields dynamically</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />  
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
</head>
<body>
  
<div class="container">
    <h2 align="center"> </h2> 
    <form action="{{ route('addmorePost') }}" method="POST">
        @csrf
        @if ($errors->any())
            <div class="alert alert-danger">
                <ul>
                    @foreach ($errors->all() as $error)
                        <li>{{ $error }}</li>
                    @endforeach
                </ul>
            </div>
        @endif
        @if (Session::has('success'))
            <div class="alert alert-success text-center">
                <a href="#" class="close" data-dismiss="alert" aria-label="close">×</a>
                <p>{{ Session::get('success') }}</p>
            </div>
        @endif
        <table class="table table-bordered" id="dynamicTable">  
            <tr>
                <th>Name</th>
                <th>Qty</th>
                <th>Price</th>
                <th>Action</th>
            </tr>
            <tr>  
                <td><input type="text" name="addmore[0][name]" placeholder="Enter your Name" class="form-control" /></td>  
                <td><input type="text" name="addmore[0][qty]" placeholder="Enter your Qty" class="form-control" /></td>  
              <td><input type="text" name="addmore[0][price]" placeholder="Enter your Price" class="form-control" /></td>  
                <td><button type="button" name="add" id="add" class="btn btn-success">Add More</button></td>  
            </tr>  
        </table>  <button type="submit" class="btn btn-success">Save</button>
    </form>
</div>
<script type="text/javascript">   
    var i = 0;      
    $("#add").click(function(){  
        ++i;  
        $("#dynamicTable").append('<tr><td><input type="text" name="addmore['+i+'][name]" placeholder="Enter your Name" class="form-control" /></td><td><input type="text" name="addmore['+i+'][qty]" placeholder="Enter your Qty" class="form-control" /></td><td><input type="text" name="addmore['+i+'][price]" placeholder="Enter your Price" class="form-control" /></td><td><button type="button" class="btn btn-danger remove-tr">Remove</button></td></tr>');
    }); 
    $(document).on('click', '.remove-tr', function(){  
         $(this).parents('tr').remove();
    });    
</script>
</body>
</html>

控制器

<?php

   

namespace App\Http\Controllers;

    

use Illuminate\Http\Request;

use App\ProductStock;

   

class ProductAddMoreController extends Controller

{

    /**

     * Display a listing of the resource.

     *

     * @return \Illuminate\Http\Response

     */

    public function addMore()

    {

        return view("addMore");

    }

    

    /**

     * Display a listing of the resource.

     *

     * @return \Illuminate\Http\Response

     */

    public function addMorePost(Request $request)

    {

        $request->validate([

            'addmore.*.name' => 'required',

            'addmore.*.qty' => 'required',

            'addmore.*.price' => 'required',

        ]);

    

        foreach ($request->addmore as $key => $value) {

            ProductStock::create($value);

        }

    

        return back()->with('success', 'Record Created Successfully.');

    }

}

Answer 1

如果请求失败，您可以在 post 请求期间将请求输入闪存到会话中，然后检查另一条路由是否存在您闪存的数据，然后使用一些逻辑来构建 table 基于旧输入 https://laravel.com/docs/8.x/requests#flashing-input-to-the-session

或者如果你很懒惰，你可以在提交表单时发出 XHR 请求以进行验证检查，然后仅在通过时才提交它

如果字段失败，则提交后在 laravel 中动态保留数据表单

keep data form dynamically in laravel after submit if have field fail

php

laravel

laravel-7

laravel-request