/// <summary>
/// Attempts to save the goal on the system
/// and returns the value stored in the database
/// </summary>
/// <param name="userId">The User ID</param>
/// <param name="goal">The goal to be persisted</param>
/// <returns>The goal that was saved on the system</returns>
public Goal CreateGoal(int?userId, Goal goal)
{
//Ensure we have valid data
if (!userId.HasValue)
{
throw new ArgumentOutOfRangeException(nameof(userId), "Please ensure the user is given when creating the goal");
}
if (goal.Id > 0)
{
throw new ArgumentOutOfRangeException(nameof(goal.Id), "Please ensure the goal has no identifying information when creating");
}
//Create the goal
Goal savedGoal = goalRepository.CreateGoalForUser(userId.Value, goal);
return(savedGoal);
}