fix

backend/src/routes/invite_link.rs

@@ -6,6 +6,7 @@ use axum::{
 use axum_login::AuthSession;
 use sea_orm::DatabaseConnection;
 use serde::{Deserialize, Serialize};
+use tower_sessions::Session;
 use utoipa::ToSchema;
 
 use crate::auth::AuthBackend;
@@ -243,6 +244,7 @@ pub async fn validate_invite_link(
 )]
 pub async fn join_family_via_invite(
     auth_session: AuthSession<AuthBackend>,
+    session: Session,
     State(db): State<DatabaseConnection>,
     Path(token): Path<String>,
 ) -> Result<Json<JoinFamilyResponse>, StatusCode> {
@@ -266,6 +268,19 @@ pub async fn join_family_via_invite(
             _ => StatusCode::INTERNAL_SERVER_ERROR,
         })?;
 
+    let mut authorized_families: Vec<i32> = session
+        .get("authorized_families")
+        .await
+        .unwrap_or(None)
+        .unwrap_or_default();
+    if !authorized_families.contains(&invite.family_id) {
+        authorized_families.push(invite.family_id);
+        session
+            .insert("authorized_families", authorized_families)
+            .await
+            .ok();
+    }
+
     Ok(Json(JoinFamilyResponse {
         success: true,
         family_id: invite.family_id,