private static void Seed(StudentSystemContext context)
        {
            var students = new[]
            {
                new Student
                {
                    Birthday     = new DateTime(1985, 2, 3),
                    Name         = "Stoyan Shopov",
                    PhoneNumber  = "0888123456",
                    RegisteredOn = new DateTime(2015, 6, 7)
                },

                new Student
                {
                    Name         = "Georgi Ivanov",
                    RegisteredOn = new DateTime(2016, 3, 5)
                },

                new Student
                {
                    Name         = "Stanislav Dimitrov",
                    Birthday     = new DateTime(1995, 1, 7),
                    RegisteredOn = new DateTime(2016, 12, 20)
                },

                new Student
                {
                    Name         = "Ivan Ivanov",
                    RegisteredOn = new DateTime(2017, 1, 7),
                    PhoneNumber  = "0877445566"
                }
            };

            context.Students.AddRange(students);

            context.SaveChanges();

            var courses = new[]
            {
                new Course
                {
                    Name        = "JS Fundamentals",
                    Description = "JS for beginners",
                    StartDate   = new DateTime(2016, 9, 18),
                    EndDate     = new DateTime(2016, 10, 20),
                    Price       = 180.00m
                },

                new Course
                {
                    Name      = "JS Advanced",
                    StartDate = new DateTime(2016, 10, 21),
                    EndDate   = new DateTime(2016, 11, 19),
                    Price     = 180.00m
                },

                new Course
                {
                    Name        = "Js Applications",
                    StartDate   = new DateTime(2016, 11, 20),
                    EndDate     = new DateTime(2016, 12, 18),
                    Description = "JS Приложения",
                    Price       = 200.00m
                }
            };

            context.Courses.AddRange(courses);

            context.SaveChanges();

            var resources = new[]
            {
                new Resource
                {
                    Name         = "Intro",
                    Url          = "softuni.bg/resources/0123456789",
                    ResourceType = ResourceType.Presentation,
                    Course       = courses[0]
                },

                new Resource
                {
                    Name         = "OOP Intro",
                    Url          = "softuni.bg/resources/1245687",
                    ResourceType = ResourceType.Video,
                    Course       = courses[1]
                },

                new Resource
                {
                    Name         = "Objects",
                    Url          = "softuni.bg/resources/556688",
                    ResourceType = ResourceType.Document,
                    Course       = courses[0]
                }
            };

            context.Resources.AddRange(resources);

            context.SaveChanges();

            var homeworks = new[]
            {
                new Homework
                {
                    Content        = "softuni.bg/homeworks/124578",
                    ContentType    = ContentType.Zip,
                    SubmissionTime = new DateTime(2016, 2, 5, 12, 45, 55),
                    Course         = courses[0],
                    Student        = students[2]
                },

                new Homework
                {
                    Content        = "softuni.bg/homeworks/225588",
                    ContentType    = ContentType.Pdf,
                    SubmissionTime = new DateTime(2017, 5, 8, 14, 22, 36),
                    Course         = courses[1],
                    Student        = students[0]
                },

                new Homework
                {
                    Content        = "softuni.bg/homeworks/44778855",
                    ContentType    = ContentType.Application,
                    SubmissionTime = new DateTime(2017, 4, 6, 18, 22, 54),
                    Course         = courses[1],
                    Student        = students[2]
                }
            };

            context.HomeworkSubmissions.AddRange(homeworks);

            context.SaveChanges();

            var student = context.Students.Where(n => n.Name == "Stoyan Shopov").FirstOrDefault();

            int studentID = student.StudentId;

            var course = context.Courses.Where(n => n.Name == "JS Advanced").FirstOrDefault();

            int courseID = course.CourseId;

            var studentCourses = new StudentCourse()
            {
                StudentId = studentID, CourseId = courseID
            };

            context.Add(studentCourses);

            context.SaveChanges();
        }