fixed deletion

app/routes/dashboard.py

@@ -409,15 +409,27 @@ def app_edit(app_id):
 @bp.route("/app/<int:app_id>/delete", methods=["POST"])
 @login_required
 def app_delete(app_id):
-    """Delete an application"""
+    """Delete an application and all its ports"""
     app = App.query.get_or_404(app_id)
+    app_name = app.name
     server_id = app.server_id
 
-    db.session.delete(app)
-    db.session.commit()
-
-    flash("Application deleted successfully", "success")
-    return redirect(url_for("dashboard.server_view", server_id=server_id))
+    try:
+        # First explicitly delete all associated ports
+        Port.query.filter_by(app_id=app_id).delete()
+        
+        # Then delete the application
+        db.session.delete(app)
+        db.session.commit()
+        
+        flash(f"Application '{app_name}' has been deleted", "success")
+        
+        # Redirect back to server view
+        return redirect(url_for("dashboard.server_view", server_id=server_id))
+    except Exception as e:
+        db.session.rollback()
+        flash(f"Error deleting application: {str(e)}", "danger")
+        return redirect(url_for("dashboard.app_view", app_id=app_id))
 
 
 @bp.route("/settings", methods=["GET", "POST"])