study-lib-backend/API/Data/StudyLibDataSeeder.cs

using System;
using System.Linq;
using StudyLib.API.Models;
using StudyLib.Models;

namespace StudyLib.API.Data
{
    public class StudyLibDataSeeder
    {

        public static void Initialize(StudyLibContext context)
        {

           /* if (context.Subjects.Any())
            {
                return;
            }

            context.Subjects.AddRange(
                new Subject
                {
                    Name = "Test",
                    LectureTeacher = "Jan Kowalski",
                    LabTeacher = "Adam Nowak",
                    MainExam = true,
                    ExamDate = new DateTime(2020, 12, 10)
                }
            );

            context.SaveChanges();

            long addedSubjectID = context.Subjects.Where(subject => subject.Name == "Test").Select(subject => subject.ID).FirstOrDefault();

            context.Assignments.Add(
                new Assignment
                {
                    Name = "test",
                    Deadline = new DateTime(2020, 12, 10),
                    Description = "test",
                    FinalMarkPercent = 100.1,
                    SubjectId = addedSubjectID
                }
            );

            context.Tests.Add(
                new Test
                {
                    Date = new DateTime(2020, 12, 10),
                    Scope = "Full subject",
                    FinalMarkPercent = 100.1,
                    SubjectId = addedSubjectID
                }
            );

            context.Comments.Add(
                new Comment
                {
                    Text = "test",
                    SubjectId = addedSubjectID
                }
            );

            context.SaveChanges();*/

        }

    }
}