Laravel Ajax存储请求错误消息，数据追加到视图

Question

我是ajax的新手，我有两个小问题。 使用我的代码，我可以将数据写入数据库中。我没有收到错误消息，并且数据不是同义词，直接加载到视图中。

如何在不重新加载页面的情况下将数据直接加载到视图中？ 如果隐私为1，则代码应显示在右列，如果隐私为0，则代码应显示在左列。

如何输出带有错误消息代码的错误消息？

视图

<div id="content" class="dashboard padding-10">
    <div class="row">
        <div class="col-md-offset-3 col-md-6">
            <a data-toggle="modal" data-target=".todolist-create-modal" class="btn btn-success btn-block btn-sm margin-bottom-10">Neue Liste erstellen</a>
        </div>
        <div class="col-md-6">
            <div id="panel-misc-portlet-l3" class="panel panel-default text-center">
                <div class="panel-heading nohover">
                    <span class="elipsis">
                        <strong>Private Tasks</strong>
                    </span>
                </div>
            </div>
            <div class="alert alert-danger margin-bottom-30 {{ $todolistpublic->count() ? 'hidden' : '' }}">
                Es wurden keine <strong>Einträge</strong> gefunden.
            </div>
            @foreach ($todolistpublic as $list)
                <div id="todo-list-{{$list->id}}" class="panel panel-default panel-primary margin-bottom-0">
                    <div class="panel-heading panel-pointer">
                            <span class="elipsis"><!-- panel title -->
                                <strong>{{ $list->title }}</strong> <span class="label label-info white">0</span>
                            </span>
                        <ul class="options pull-right relative list-unstyled hover-visible">
                            <li><a data-toggle="modal" data-target=".task-modal" class="btn btn-success btn-xs white hover-hidden">
                                    <i class="fa fa-plus"></i> Erstellen
                                </a>
                            </li>
                            <li><a data-toggle="modal" data-target=".todolist-modal" data-id="{{ $list->id }}" data-title="{{ $list->title }}" data-description="{{ $list->description }}" class="btn btn-info btn-xs white hover-hidden">
                                    <i class="fa fa-edit"></i> Bearbeiten
                                </a>
                            </li>
                            <li><a data-toggle="modal" data-target=".todolist-delete-modal" data-id="{{ $list->id }}" data-title="{{ $list->title }}" data-description="{{ $list->description }}" class="btn btn-danger btn-xs white hover-hidden">
                                    <i class="fa fa-times"></i> Löschen
                                </a>
                            </li>
                            <li><a href="#" class="opt panel_colapse" data-placement="bottom"></a></li>
                        </ul>
                    </div>
                    <div class="panel-body">
                        <div class="slimscroll" data-always-visible="false" data-rail-visible="false" data-railOpacity="1" data-height="100">
                            {{ $list->description }}
                        </div>
                    </div>
                </div>
            @endforeach
            <div class="panel-footer mtm-10">
                <span id="todo-list-counter-public">{{ $todolistpublic->count() }}</span> <span>{{ $todolistpublic->count() > 1? 'Listen' : 'Liste' }}</span>
            </div>
        </div>

        <div class="col-md-6">
            <div id="panel-misc-portlet-l3" class="panel panel-default text-center">
                <div class="panel-heading nohover">
                    <span class="elipsis">
                        <strong>Öffentliche Tasks</strong>
                    </span>
                </div>
            </div>
            <div class="alert alert-danger margin-bottom-30 {{ $todolistprivate->count() ? 'hidden' : '' }}">
                Es wurden keine <strong>Einträge</strong> gefunden.
            </div>
            @foreach ($todolistprivate as $list)
                <div id="todo-list-{{$list->id}}" class="panel panel-default panel-primary margin-bottom-0">
                    <div class="panel-heading panel-pointer">
                            <span class="elipsis"><!-- panel title -->
                                <strong>{{ $list->title }}</strong> <span class="label label-info white">0</span>
                            </span>
                        <ul class="options pull-right relative list-unstyled hover-visible">
                            <li><a data-toggle="modal" data-target=".task-modal" class="btn btn-success btn-xs white hover-hidden"><i class="fa fa-plus"></i> Erstellen</a></li>
                            <li><a data-toggle="modal" data-target=".todolist-modal" class="btn btn-info btn-xs white hover-hidden"><i class="fa fa-edit"></i> Bearbeiten</a></li>
                            <li><a href="#" class="btn btn-danger btn-xs white hover-hidden"><i class="fa fa-times"></i> Löschen</a></li>
                            <li><a href="#" class="opt panel_colapse" data-placement="bottom"></a></li>
                        </ul>
                    </div>
                    <div class="panel-body">
                        <div class="slimscroll" data-always-visible="false" data-rail-visible="false" data-railOpacity="1" data-height="100">
                            {{ $list->description }}
                        </div>
                    </div>
                </div>
            @endforeach
            <div class="panel-footer mtm-10">
                <span id="todo-list-counter-private">{{ $todolistprivate->count() }}</span> <span>{{ $todolistprivate->count() > 1? 'Listen' : 'Liste' }}</span>
            </div>
        </div>

        @include('elements.addTodoList')
        @include('elements.createTodoList')
        @include('elements.addTask')
    </div>
</div>

$(document).ready(function () {
        var CSRF_TOKEN = $('meta[name="csrf-token"]').attr('content');

        $('#add-todo-list').click(function(e) {
            e.preventDefault();
            var _token = $("input[name='_token']").val(); // get csrf field.
            var title = $("input[name='title']").val();
            var description = $("textarea[name='description']").val();
            var privacy = $("select[name='privacy']").val();
            $.ajax({
                url:'{{ route('todolists.store') }}',
                type: 'POST',
                data: {_token:_token, title:title, description:description, privacy:privacy},
                success: function (data) {
                    console.log(data);
                }
        });
        });
    });

控制器

public function store(Request $request)
{
    $validator = Validator::make($request->all(), [
        'title' => 'required|min:5',
        'description' => 'required|min:10',
        'privacy' => 'required|integer'
    ]);

    $attributeNames = array(
        'title' => 'Title',
        'description' => 'Description',
    );
    $validator->setAttributeNames($attributeNames);
    //Redirect back if validation fails
    if($validator->fails()) {
        return response()->json(['error'=>$validator->errors()->all()]);
    }
    else{
        $todolists = new Todolists;
        $todolists->admin_id = auth::user();
        $todolists->title = $request->title;
        $todolists->description = $request->description;
        $todolists->privacy = $request->privacy;
        $todolists->save();
        return response()->json(['success'=>'Your enquiry has been successfully submitted!']);

    }

}

模式

<div class="modal fade todolist-create-modal" tabindex="-1" role="dialog">
<div class="modal-dialog">
    <div class="modal-content">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
            <h4 class="modal-title">Erstelle eine neue Liste</h4>
        </div>
        <div class="modal-body">
            <form action="{{ route('todolists.store') }}" method="post">
                {{ csrf_field() }}
                <div class="form-group">
                    <label for="" class="control-label">Titelname</label>
                    <div class="fancy-form">
                        <i class="fa fa-header"></i>
                        <input id="title" name="title" type="text" class="form-control input-lg" placeholder="Titel">
                    </div>
                </div>
                <div class="form-group">
                    <label for="" class="control-label">Beschreibung</label>
                    <div class="fancy-form">
                        <textarea id="description" name="description" rows="2" class="form-control" placeholder="Beschreibe deine Aufgabe"></textarea>

                        <i class="fa fa-comments"><!-- icon --></i>

                    </div>
                </div>
                <div class="form-group">
                    <label for="" class="control-label">Privatsphäre</label>
                    <div class="fancy-form fancy-form-select">
                        <select id="privacy" name="privacy" class="form-control">
                            <option selected value="0">Öffentlich</option>
                            <option value="1">Privat</option>
                        </select>
                        <i class="fancy-arrow"></i>
                    </div>
                </div>
            </form>
        </div>
        <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            <button type="button" class="btn btn-success" id="add-todo-list">Save changes</button>
        </div>
    </div><!-- /.modal-content -->
</div><!-- /.modal-dialog -->

错误消息

 @if (count($errors) > 0)
    <div class="toastr-notify"></div>
            @foreach ($errors -> all() as $e)
                <script type="text/javascript">
                    _toastr("{{$e}}","top-right","error",false);
                </script>
            @endforeach
@endif

@if (session('fail'))
<div class="toastr-notify"></div>
    <script type="text/javascript">
        _toastr("{{ session('fail') }}","top-full-width","warning",false);
    </script>
@endif

@if (session('status'))
<div class="toastr-notify"></div>
    <script type="text/javascript">
        _toastr("{{ session('status') }}","top-full-width","info",false);
    </script>
@endif

@if (session('success'))
    <div class="btn btn-info toastr-notify"></div>
    <script type="text/javascript">
        _toastr("{{ session('success') }}","top-full-width","success", false);
    </script>
@endif

@if (session('error'))
    <div class="toastr-notify"></div>
    <script type="text/javascript">
        _toastr("{{ session('error') }}","top-full-width","error",false);
    </script>
@endif

Answer 1

我相信您的ajax后端代码中有错别字；这行要具体：

$todolists->admin_id = auth::user();

这应该是：

$todolists->admin_id = auth()->user()->id;

拼写错误产生了Throwable错误，该错误被laravel异常处理程序捕获，并检测到代码正在ajax请求下执行，因此返回500内部服务器错误。