public void RewardUser(int userId, int rewardId)
{
if (userId > 0 && rewardId > 0)
{
UserAndRewardModel userAndRewardModel = new UserAndRewardModel
{
UserId = userId,
RewardId = rewardId
};
_userAndRewards.Add(userAndRewardModel);
}
else
{
throw new ArgumentException();
}
}
public bool RemoveReward(int userId, int rewardId)
{
UserAndRewardModel userAndRewardModel = _userAndRewards.FirstOrDefault(x => (x.UserId == userId && x.RewardId == rewardId));
return(_userAndRewards.Remove(userAndRewardModel));
}