classDiagram
    class Log {
        +int id
        +string msg
        +datetime created_at
    }

    class Notification {
        +int id
        +int user_id
        +string message
        +datetime read_at
        +datetime created_at
        +string category
        +string action_after_reading
        +string link
    }

    class Distance {
        +int id
        +string destination
        +int distance_in_km
    }

    class User {
      ...
    }

    %% Relationships
    Notification "*" -- "1" User