upload multiple images using laravel API : with polymorphic relation - php

Question

I'm building an API with Laravel 8 and I have posts and images table with polymorphic relation
So I want to upload multiple images and I'm doing it in postman, And when I upload images and enter posts fields with values, like this:
as you can see, I have an error in my foreach($files as $file)
ErrorException: Invalid argument supplied for foreach()
(In headers part Content-Type has multipart/form-data value )
So I think my problem is in store() method in postController ,
The codes :
post tables :
Schema::create('posts', function (Blueprint $table) {
$table->id();
$table->unsignedBigInteger('category_id');
$table->unsignedBigInteger('user_id');
$table->string('title');
$table->longText('body');
$table->string('video')->nullable();
$table->string('study_time');
$table->integer('likes')->nullable();
$table->tinyInteger('status')->nullable()->comment('status is 1 when a post is active and it is 0 otherwise.')->nullable();
$table->text('tags')->nullable();
$table->foreign('category_id')->references('id')->on('categories');
$table->foreign('user_id')->references('id')->on('users');
});
and my image table :
Schema::create('images', function (Blueprint $table) {
$table->id();
$table->integer('imageable_id');
$table->string('imageable_type');
$table->string('url');
$table->timestamps();
});
and the post model :
.
.
.
.
public function image(){
return $this->morphOne(Image::class , 'imageable');
}
and my image model :
protected $fillable = [
'url'
];
public function imageable(){
return $this->morphTo();
}
and my store() method in postController :
public function store(Request $request )
{
$post = new Post;
$post->category_id = $request->get('category_id');
$post->title = $request->get('title');
$post->body = $request->get('body');
$post->study_time = $request->get('study_time');
$post->tags = $request->get('tags');
$post->user_id = JWTAuth::user()->id;
$tags = explode(",", $request->tags);
$post->tag($tags);
$allowedfileExtension=['pdf','jpg','png'];
$files = $request->file('fileName');
foreach ($files as $file) {
$extension = $file->getClientOriginalExtension();
$check = in_array($extension, $allowedfileExtension);
if($check) {
foreach($request->fileName as $mediaFiles) {
$url = $mediaFiles->store('public/images');
//store image file into directory and db
$image = new Image();
$image->url = $url;
}
}
else {
return response()->json(['invalid_file_format'], 422);
}
}
$post->image()->save($image);
$post->save();
return response()->json($post , 201);
}
thank you for your help :}

Answer 1

$files = $request->file('fileName');
... is returning null in your case, done you are not posting fileName, you use url.
If you would have validated your incoming data you would have received a validation errors 6 because of this. So: always validate incoming d data. Not only to catch errors like this, also b for security reasons.

Answer 2

public function store(Request $request)
{
if ($this->getErrorIfAny($request->all(), $this->ruls)) {
return $this->getErrorIfAny($request->all(), $this->ruls);
}
if (!$request->hasFile('image_url')) {
return response($this->getResponseFail(trans('my_keywords.uploadFileNotFound'), false), 400);
}
$allowedfileExtension = ['jpg', 'png', 'jpeg'];
$files = $request->file('image_url');
$number_photos_upload = count($files);
$pictures_available_upload = array();
for ($i = 0; $i < count($files); $i++) {
$extension = $files[$i]->getClientOriginalExtension();
$check = in_array($extension, $allowedfileExtension);
if ($check) {
$pictures_available_upload[$i] = $files[$i];
}
}
$number_images_success_uploded = 0;
$images_urls = array();
for ($i = 0; $i < count($pictures_available_upload); $i++) {
$image = $pictures_available_upload[$i];
$path = config('paths.storage_path') .
$image->store(config('paths.store_image_path'), 'public');
//store image file into directory and db
$store_images = new StoreImages();
$store_images['store_id'] = $request['store_id'];
$store_images['image_url'] = $path;
$result = $store_images->save();
if ($result) {
$images_urls[$i] = $path;
$number_images_success_uploded = $number_images_success_uploded + 1;
}
}
if ($number_images_success_uploded == 0) {
return response($this->getResponseFail(trans('my_keywords.invalidFileFormat'), false), 422);
} else {
$data = [
'store_id' => (int) $request['store_id'],
'number_photos_upload' => $number_photos_upload,
'number_images_success_uploded' => $number_images_success_uploded,
'images' => $images_urls,
];
return response($this->getResponse(__('my_keywords.operationSuccessfully'), true, $data), 200);
}
}