public static <D extends Comparable> DateTimeExpression<D> addWeeks(DateTimeExpression<D> date, int weeks) {
        return Expressions.dateTimeOperation(date.getType(), Ops.DateTimeOps.ADD_WEEKS, date, ConstantImpl.create(weeks));
    }
Add the given amount of weeks to the date

@param date datetime
@param weeks weeks to add
@return converted date
querydsl-sql/src/main/java/com/querydsl/sql/SQLExpressions.java