javascript - 直接在视图中输出数据和消息
问题描述
我目前正在研究 ajax、jquery 和 javascript。我对此有一些小问题。
我可以使用此代码发送数据并将它们存储在数据库中。但是在视图中发送后不会直接显示数据，直到我重新加载页面。
如何在不重新加载页面的情况下直接在视图中输出数据？
如何将错误和成功消息输出为 flashmessage (toastr) 消息？
我怎样才能重写这个有效的代码？我收到错误消息，它是选择器的副本。
$('#todolist-create-modal').modal('hide');
$('#todolist-create-modal').on('keypress', ":input:not(textarea)", function(event) {
return event.keyCode != 13;
});
代码
<script type="application/javascript">
$(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();
var listid = $("select[name='privcy']").val();
$.ajax({
url:'{{ route('todolists.store') }}',
type: 'POST',
data: {_token:_token, title:title, description:description, privacy:privacy},
success: function (data) {
console.log(data);
if (privacy = 0) {
//go to the left side
} else {
//go to the right side
}
},
error: function(data){
console.log(data);
}
});
$('#todolist-create-modal').modal('hide');
$('#todolist-create-modal').on('keypress', ":input:not(textarea)", function(event) {
return event.keyCode != 13;
});
});
});
</script>
看法
<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>Öffentliche 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>Private 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>
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::id();
$todolists->title = $request->title;
$todolists->description = $request->description;
$todolists->privacy = $request->privacy;
$todolists->save();
return response()->json(['Your enquiry has been successfully submitted!']);
}
}
编辑
我已经修改并调整了代码。目前我还有两个问题：
flashmessage 仅输出为“empty”。没有文字内容。问题出在哪里？
div 也被重新加载。但是加载后我无法再次发送相同的请求。我是否必须重置某些内容或错误是什么？
当我在控制台中发出错误时，console.log(data);我收到以下错误消息： {error: Array(2)} error : (2) ["The Title ist erforderlich.", "The Description ist erforderlich."]
<script type="application/javascript">
$(document).ready(function () {
var CSRF_TOKEN = $('meta[name="csrf-token"]').attr('content');
$('#add-todo-list').click(function(e) {
e.preventDefault();
$('.todolist-create-modal').on('keypress', ":input:not(textarea)", function(event) {
return event.keyCode != 13;
});
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 (response) {
if (response.error) {
_toastr((response),"top-full-width","error",false);
}
else{
$('.todolist-create-modal').modal('hide');
$("#content").load(location.href+" #content>*","");
_toastr((response),"top-full-width","success",false);
}
}
});
});
});
</script>
解决方案
Q：如何不重新加载页面，直接在视图中输出数据？
jQuery 的一种方法是加载部分内容，这将再次请求页面，获取#content div 的内容并替换 HTML，快速且无需重新加载页面：
$("#content").load("/url-of-page > #content > *");
问：如何将错误和成功消息输出为 flashmessage (toastr) 消息？
只需将消息写在 HTML 元素上：
success: function(data){
$(".alert-danger").addClass("hidden");
$(".alert-success").html(data.msg).removeClass("hidden");
},
error: function(data){
$(".alert-success").addClass("hidden");
$(".alert-danger").html(data.error).removeClass("hidden");
}
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