Email template themes > 'is_default' flag management, only one can be…

… default

src/Resources/EmailTemplateThemeResource/Pages/EditEmailTemplateTheme.php

@@ -5,6 +5,8 @@
 use Filament\Actions;
 use Filament\Resources\Pages\EditRecord;
 use Visualbuilder\EmailTemplates\Resources\EmailTemplateThemeResource;
+use Illuminate\Database\Eloquent\Model;
+use Visualbuilder\EmailTemplates\Models\EmailTemplateTheme;
 
 class EditEmailTemplateTheme extends EditRecord
 {
@@ -16,4 +18,16 @@ protected function getHeaderActions(): array
             Actions\DeleteAction::make(),
         ];
     }
+
+    protected function handleRecordUpdate(Model $record, array $data): Model
+    {
+        $record->update($data);
+
+        if($data['is_default']) {
+            EmailTemplateTheme::where('id', '!=', $record->id)
+                                ->where('is_default', true)
+                                ->update(['is_default' => false]);
+        }
+        return $record;
+    }
 }