deletion improvement

app/Http/Livewire/Source/Github/Change.php

@@ -4,10 +4,7 @@ namespace App\Http\Livewire\Source\Github;
 
 use App\Models\GithubApp;
 use App\Models\InstanceSettings;
-use Illuminate\Support\Facades\Http;
-use Illuminate\Support\Facades\Route;
 use Livewire\Component;
-use Illuminate\Support\Str;
 
 class Change extends Component
 {

app/Models/GithubApp.php

@@ -8,6 +8,15 @@ class GithubApp extends BaseModel
     protected $casts = [
         'is_public' => 'boolean',
     ];
+    protected static function booted(): void
+    {
+        static::deleting(function (GithubApp $github_app) {
+            $applications_count = Application::where('source_id', $github_app->id)->count();
+            if ($applications_count > 0) {
+                throw new \Exception('You cannot delete this GitHub App because it is in use by ' . $applications_count . ' application(s). Delete them first.');
+            }
+        });
+    }
     public function applications()
     {
         return $this->morphMany(Application::class, 'source');