feat: add markAllNotificationsRead method to UserService

services/UserService.cc

@@ -120,6 +120,16 @@ Json::Value UserService::markNotificationRead(const auth::UserContext &user,
     return success();
 }
 
+Json::Value UserService::markAllNotificationsRead(const auth::UserContext &user)
+{
+    drogon::app().getDbClient()->execSqlSync(
+        "UPDATE notifications "
+        "SET read_at = COALESCE(read_at, NOW()) "
+        "WHERE user_id = ?",
+        user.id);
+    return success();
+}
+
 Json::Value UserService::rewards(const auth::UserContext &user,
                                  const std::optional<std::string> &page,
                                  const std::optional<std::string> &perPage)

services/UserService.h

@@ -17,6 +17,7 @@ class UserService
                                   const std::optional<std::string> &perPage);
     Json::Value markNotificationRead(const auth::UserContext &user,
                                      long long notificationId);
+    Json::Value markAllNotificationsRead(const auth::UserContext &user);
     Json::Value rewards(const auth::UserContext &user,
                         const std::optional<std::string> &page,
                         const std::optional<std::string> &perPage);