first commit

app/Providers/AttachmentServiceProvider.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Providers;
+
+use App\Contracts\AttachmentService as AttachmentServiceContract;
+use App\Helpers\AttachmentHelper;
+use App\Services\AttachmentService;
+use Illuminate\Database\Eloquent\Relations\Relation;
+use Illuminate\Support\ServiceProvider;
+
+class AttachmentServiceProvider extends ServiceProvider
+{
+    /**
+     * Register services.
+     */
+    public function register(): void
+    {
+        $this->app->bind(AttachmentServiceContract::class, AttachmentService::class);
+    }
+
+    /**
+     * Bootstrap services.
+     */
+    public function boot(): void
+    {
+//      TODO: [ ] check if we can add more from Cattr modules
+        Relation::morphMap(AttachmentHelper::ABLE_BY);
+    }
+}