public StudentWeight Update(StudentWeight studentWeight, Student student, double weight)
{
if (studentWeight == null)
{
throw new ArgumentNullException("studentId cannot be empty");
}
if (weight < 0)
{
throw new Exception("weight cannot be negative");
}
studentWeight.Student = student;
studentWeight.Weight = weight;
studentWeight.UpdatedAt = DateTime.UtcNow;
return(studentWeight);
}
public StudentWeight Create(Student student, double weight)
{
if (student == null)
{
throw new ArgumentNullException("studentId cannot be empty");
}
if (weight < 0)
{
throw new Exception("weight cannot be negative");
}
StudentWeight studentWeight = new StudentWeight()
{
Id = Guid.NewGuid(),
Student = student,
Weight = weight,
CreatedAt = DateTime.UtcNow,
UpdatedAt = DateTime.UtcNow
};
return(studentWeight);
}