fix some problems

app/Http/Resources/ItemResource.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Http\Resources;
+
+use App\Services\Media\Resources\MediaResource;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ItemResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  Request  $request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        return [
+            'id' => $this->id,
+            'name' => $this->name,
+            'udi' => $this->udi,
+            'size' => $this->size,
+            'specific' => $this->specific,
+            'repair' => $this->repair,
+            'status' => $this->status,
+            'creator_id' => $this->creator_id,
+            'creator' => UserResource::make($this->whenLoaded('creator')),
+            'user_id' => $this->user_id,
+            'user' => UserResource::make($this->whenLoaded('user')),
+            'package' => PackageResource::make($this->whenLoaded('package')),
+            'transfers' => TransferResource::collection($this->whenLoaded('transfers')),
+            'files' => MediaResource::collection($this->media),
+            'thumbnail' => $this->getFirstMediaUrl('main_images', 'thumbnail'),
+            'created_at' => $this->created_at,
+            'updated_at' => $this->updated_at
+        ];
+    }
+}