public static void Initialize(IServiceProvider services) { var options = services.GetRequiredService <DbContextOptions <UniversityContext> >(); using (var db = new UniversityContext(options)) { if (db.Students.Any()) { return; } var fake = new Faker("sv"); var students = new List <Student>(); for (int i = 0; i < 200; i++) { var fName = fake.Name.FirstName(); var lName = fake.Name.LastName(); var student = new Student { FirstName = fName, LastName = lName, Email = fake.Internet.Email($"{fName} {lName}"), Avatar = fake.Internet.Avatar(), Adress = new Adress { City = fake.Address.City(), Street = fake.Address.StreetAddress(), ZipCode = fake.Address.ZipCode() } }; students.Add(student); } db.AddRange(students); var courses = new List <Course>(); for (int i = 0; i < 20; i++) { var course = new Course { Title = fake.Company.CatchPhrase() }; courses.Add(course); } db.AddRange(courses); var enrollments = new List <Enrollment>(); foreach (var student in students) { foreach (var course in courses) { if (fake.Random.Int(0, 5) == 0) { var enrdollment = new Enrollment { Course = course, Student = student, Grade = fake.Random.Int(1, 5) }; enrollments.Add(enrdollment); } } } db.AddRange(enrollments); db.SaveChanges(); } }