422 (Unprocessable Entity) Ajax and Laravel - php

Question

In his life, he only encountered an ajax 2 times and here again our paths intertwined with him and he gave me 422 errors. I googled and realized that 422 error is a validation error, but in what specific place the error, I just can not understand.
This is my script
<script type="text/javascript">
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
$( "#form" ).submit(function( e ) {
e.preventDefault();
var message = $('#message').val();
var img = $('#img').val();
var user_id = $('#user_id').val();
$.ajax({
type: "POST",
url: "{{route('profile.store', ['id' => Auth::user()->id])}}",
data: {message:message, img:img, user_id:user_id},
success: function (data) {
$("#textpost").html($(data).find("#textpost").html());
},
});
});
</script>
And my method
public function store(Request $request) {
$validator = $this->validate($request,[
'message' => 'required|max:1000',
'img' => 'mimes:jpeg,png,gif|max:3000',
]);
if($validator ) {
$post = new Profile();
$post->message = $request->message;
$post->user_id = Auth::user()->id;
if($request->file('img')) {
$path = Storage::putFile('public', $request->file('img'));
$url = Storage::url($path);
$post->img = $url;
}
$post->save();
}
return redirect()->back();
}
And my form
<div class="card-header">
<div class="input-group">
<form action="{{route('profile.store', ['id' => Auth::user()->id])}}" method="post" enctype="multipart/form-data" id="form">
#csrf
<textarea class="form-control" id="message" name="message" cols="100" rows="4" placeholder="О чем думаешь?"></textarea>
<input type="file" id="img" name="img" value="Прикрепить изображение" class="mt-2">
<div class="text-right">
{{-- <input type="submit" id="btn" value="Отправить" class="btn btn-outline-dark btn-sm mt-4">--}}
<button type="submit" id="btn" class="btn btn-outline-dark btn-sm mt-4">Отправить</button>
</div>
</form>
</div>
</div>

Answer 1

$validator = $this->validate($request,[
'message' => 'required|max:1000',
'img' => 'mimes:jpeg,png,gif|max:3000',
]);
This portion of your code throws a validation errors exception which returns 422.
If you wish to handle validation on your own, try this logic instead:
$validator = validator($request->all(), [
'message' => 'required|max:1000',
'img' => 'mimes:jpeg,png,gif|max:3000',
]);
if($validator->fails()) {
// return as appropriate
return response()->son($validatior->errors(), 422);
}
// rest of your code

Answer 2

There is a problem with your Ajax call, because you are uploading text and file at the same time you can pass it through FormData. You were also missing
contentType: false,
processData: false,
Here is the updated ajax call:
<script type="text/javascript">
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
$( "#form" ).submit(function( e ) {
e.preventDefault();
var formData = new FormData(this); //set formData to selected instance
var message = $('#message').val();
var img = $('#img').val();
var user_id = $('#user_id').val();
$.ajax({
type: "POST",
url: "{{route('profile.store', ['id' => Auth::user()->id])}}",
data: formData, //pass to our Ajax data to send
success: function (data) {
$("#textpost").html($(data).find("#textpost").html());
},
contentType: false,
processData: false,
});
});
</script>
Setting processData makes it so your FormData is not converted to a string. Setting contentType to false is used for forms that pass files, when false, no header will be added to the request, which is exactly what we want when submitting multipart/form-data.