// Relation (http://greenrobot.org/greendao/documentation/relations/)
        Property id_subscriber = subscription.addLongProperty("id_subscriber").notNull().getProperty();
        ToMany subscriberToSubscriptions = subscriber.addToMany(subscription, id_subscriber);
        subscriberToSubscriptions.setName("subscriberToSubscriptions");

    /** Creates the underlying database table. */
    public static void createTable(SQLiteDatabase db, boolean ifNotExists) {
        String constraint = ifNotExists? "IF NOT EXISTS ": "";
        db.execSQL("CREATE TABLE " + constraint + "\"SUBSCRIPTION\" (" + //
                "\"_id\" INTEGER PRIMARY KEY AUTOINCREMENT ," + // 0: id
                "\"ID_SUBSCRIBER\" INTEGER NOT NULL ," + // 1: id_subscriber
                "\"NEWSPAPER_MNEMONIK_NAME\" TEXT," + // 2: newspaper_mnemonik_name
                "\"PERIOD\" TEXT," + // 3: period
                "\"PAID\" INTEGER," + // 4: paid
                "\"PAYMENT_SUMM\" TEXT);"); // 5: payment_summ
    }

FOREIGN KEY (ID_SUBSCRIBER) REFERENCES SUBSCRIBER(_ID)

    /** Internal query to resolve the "subscriptions" to-many relationship of Subscriber. */
    public List<Subscription> _querySubscriber_Subscriptions(long id_subscriber) {
        synchronized (this) {
            if (subscriber_SubscriptionsQuery == null) {
                QueryBuilder<Subscription> queryBuilder = queryBuilder();
                queryBuilder.where(Properties.Id_subscriber.eq(null));
                subscriber_SubscriptionsQuery = queryBuilder.build();
            }
        }
        Query<Subscription> query = subscriber_SubscriptionsQuery.forCurrentThread();
        query.setParameter(0, id_subscriber);
        return query.list();
    }