Creating default object from empty value using laravel 6 and ajax - ajax

Question

i have in an annonces table a multiple images, i want to update multiple images, but it gives me error:
Creating default object from empty value knowing that i tried to transform multipleimage to a given json.in the console it gives me the name of the images to select.
AnnoncesController.php
public function filesUpdate(Request $request,$id)
{
$Annonce=Annonce::find($id);
$data = array();
if($request->hasFile('images'))
{
foreach($request->file('images') as $file)
{
$path = $request->images->store('annonces');
$Annonce->images = $path;
array_push($data,$path);
}
}
$Annonce->images = json_encode($data);
$Annonce->save();
return Redirect::to("annonces")
->withSuccess('Great! file has been successfully uploaded.');
}
web.php
Route::post('annonces/filesUpdate','AnnoncesController#filesUpdate');
details.blade.php
<form method="post" action="{{url('annonces/filesUpdate')}}" enctype="multipart/form-data"
class="dropzone" id="dropzone">
<input type="hidden" name="_method" value="PUT">
{{ csrf_field() }}
</form>
<script type="text/javascript">
Dropzone.options.dropzone =
{
maxFilesize: 12,
renameFile: function(file) {
var dt = new Date();
var time = dt.getTime();
var images = time+file.name
console.log(time+file.name);
return images;
},
acceptedFiles: ".jpeg,.jpg,.png,.gif",
addRemoveLinks: true,
timeout: 50000,
success: function(file, response)
{
console.log(response);
},
error: function(file, response)
{
return false;
}
};
</script>

Answer 1

You are not passing the id as route parameter in the form action so the $id value received in filesUptate method in controller will be null. You have to pass the $Annonce->id as route parameter via form action
//When you send this view as response from edit method you need to pass
//either $Annonce object or at least the $Annonce->id as $AnnonceId to the view
//If you pass the entire $Annonce object then append $Annonce->id as below
//to the form action or replace it with $AnnonceId if you are passing only
//$AnnonceId from the edit method of the controller
<form
method="post"
action="{{url('annonces/filesUpdate/' . $Annonce->id)}}"
enctype="multipart/form-data"
class="dropzone" id="dropzone"
>
<input type="hidden" name="_method" value="PUT">
{{ csrf_field() }}
</form>
The error probably arises as you are trying to call store method on array.
Try the below
public function filesUpdate(Request $request,$id)
{
$Annonce=Annonce::findOrFail($id);
$data = array();
if($request->hasFile('images'))
{
foreach($request->file('images') as $file)
{
//Trying to call store on an array here
//$request->images is not an instance of UploadedFile
//$path = $request->images->store('annonces');
//$file is an instance of UploadedFile
//so you can call store method on it
$data[] = $file->store('annonces');
}
}
$Annonce->images = json_encode($data);
$Annonce->save();
return Redirect::to("annonces")
->withSuccess('Great! file has been successfully uploaded.');
}
You can also use $casts property to let Laravel handle the casting of images attribute automatically
class Annonce extends Model
{
protected $casts = [ 'images' => 'array'];
}