public async Task AddAuthorAsync(CreateAuthorRequest author)
{
if (author == null)
{
throw new ArgumentNullException(nameof(author));
}
author.Id = Guid.NewGuid();
_context.Authors.Add(author.ToEntity());
await _context.SaveChangesAsync();
}
public async Task AddCourseAsync(Guid authorId, CreateCourseRequest course)
{
if (authorId == Guid.Empty)
{
throw new ArgumentNullException(nameof(authorId));
}
if (course == null)
{
throw new ArgumentNullException(nameof(course));
}
course.AuthorId = authorId;
_context.Courses.Add(course.ToEntity());
await _context.SaveChangesAsync();
}