private void SetupStudent(
Predicate <Person> personPredicate,
Predicate <University> universityPredicate,
DateTime registrationDate,
DateTime?graduationDate,
params CourseTitleAndGrade[] coursesAndGrades)
{
if (personPredicate == null)
{
throw new ArgumentNullException(nameof(personPredicate));
}
if (universityPredicate == null)
{
throw new ArgumentNullException(nameof(universityPredicate));
}
Person thePerson = null;
Student theStudent = this.students.FirstOrDefault(s => personPredicate(s));
if (theStudent != null)
{
thePerson = theStudent;
}
else
{
thePerson = this.persons.First(p => personPredicate(p));
}
var theUniversity = this.universities.First(u => universityPredicate(u));
var attendedUniversity = new AttendedUniversity(
theUniversity.Id,
thePerson.Id,
registrationDate,
graduationDate,
coursesAndGrades.Select(cg => new TranscriptOfGradeEntry(
courseId: this.GetCourseIdByTitleAndUniversityName(
title: cg.CourseTitle,
universityName: theUniversity.Name),
grade: cg.Grade)));
if (theStudent == null)
{
// new student
var newStudent = Student.FromPerson(
thePerson,
new[] { attendedUniversity });
this.students.Add(newStudent);
}
else
{
// existing student
theStudent.FluentAddAttendedUniversity(attendedUniversity);
}
}
public Student FluentAddAttendedUniversity(AttendedUniversity university)
{
if (university != null)
{
this.attendedUniversities.Add(university);
}
return(this);
}
