public async Task <MeetingPoint> UpdateMeetingPointAsync(MeetingPoint meetingPoint)
        {
            context.MeetingPoints.Update(meetingPoint);
            await context.SaveChangesAsync();

            return(meetingPoint);
        }
        public async Task <MeetingPoint> InsertMeetingPointAsync(MeetingPoint meetingPoint)
        {
            meetingPoint.Id = 0;
            var result = await context.MeetingPoints.AddAsync(meetingPoint);

            await context.SaveChangesAsync();

            return(result.Entity);
        }
        public async Task <bool> DeleteMeetingPointAsync(MeetingPoint meetingPoint)
        {
            context.MeetingPoints.Remove(meetingPoint);

            return(await context.SaveChangesAsync() > 0);
        }