I am using laravel 5.2, my question is:
How to show validation errors when submitting a form using ajax?
For example:
When ajax is not used, if the header field is empty, there is information when sending:
"The header field is required."
And, when ajax is used, how to show the information above.
View:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="csrf-token" content="{{ csrf_token() }}">
<link href="https://cdn.bootcss.com/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdn.bootcss.com/tether/1.1.1/css/tether.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<form id="formArticle" class="form-horizontal" role="form">
<fieldset class="row form-group">
<label class="col-xs-2 control-label">Title:</label>
<div class="col-xs-10">
<input id="title" name="title" type="text" class="form-control"
value="{{ old('title') }}">
<span class="help-block"><strong></strong></span>
</div>
</fieldset>
<fieldset class="row form-group">
<label class="col-xs-2 control-label">Content:</label>
<div class="col-xs-10">
<input id="content" name="content" type="text" class="form-control"
value="{{ old('content') }}">
<span class="help-block"><strong></strong></span>
</div>
</fieldset>
<fieldset class="row form-group">
<label class="col-xs-2 control-label" for="photo">Photo：</label>
<div class="col-xs-10">
<input id="photo" name="photo" type="file" class="form-control-file">
<span class="help-block"><strong></strong></span>
</div>
</fieldset>
<fieldset class="form-group">
<div class="col-xs-12">
<button id="submit" type="submit" class="btn btn-primary">Submit</button>
</div>
</fieldset>
</form>
<div class="alert alert-success" role="alert" hidden>
upload successfully
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/tether/1.1.1/js/tether.min.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"></script>
</body>
</html>
JavaScript:
<script>
$(function () {
var articleData = new FormData($('#formArticle')[0]);
$(document).on('submit', '#formArticle', function (e) {
e.preventDefault();
$('input+span>strong').text('');
$('input').parent().parent().removeClass('has-error');
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
$.ajax({
type: "POST",
url: "{{ url('article/') }}",
dataType: 'json',
processData: false,
contentType: false,
cache: false,
data: articleData
})
.done(function (data) {
$(".alert-success").prop("hidden", false);
})
.fail(function (data) {
$.each(data.responseJSON, function (key, value) {
var input = '#formArticle input[name=' + key + ']';
$(input + '+span>strong').text(value);
$(input).parent().parent().addClass('has-error');
});
});
});
});
</script>
Controller:
public function store(Requests\StoreArticleRequest $request)
{
$article = new Article;
$article -> user_id = \Auth::id();
$article->title = $request->title;
$article->content = $request->content;
$photo = $request->photo;
$destinationPath = 'uploads/';
$extension = $photo->getClientOriginalExtension();
$photoName = \Auth::user()->id . '_' . time() . '.' . $extension;
$photo->move($destinationPath, $photoName);
$article -> photo = '/'.$destinationPath.$photoName;
$article->save();
}
StoreArticleRequest:
public function rules()
{
return [
'title'=>'required',
'content'=>'required',
'photo'=>'required'
];
}
Form data can be saved to the database successfully if the entries are completely filled.
But, when they are not completely filled or nothing is filled, the
json message is displayed in the preview and response tags of the Chrome debugger, for example:
{
"title":["The title field is required."],
"content":["The content field is required."],
...
}
html.
".alert-success".
, .
, done() fail() .
done() fail() , ajax ,
,
, laravel ,
ajax,
,
,
div class= "alert alert-success" .