public override IEnumerable <CourseDto> GetAll()
{
var query =
from course in _courseRepository.AllInclude(course => course.CourseCategories)
join category in _categoryRepository.GetAll() on course.CategoryId equals category.Id into cc
from c in cc.DefaultIfEmpty()
select this.CourseToDto(course, c?.Id ?? 0, c?.Slug ?? "", c?.IsVisible ?? false);
List <CourseDto> result = query.ToList();
return(result);
}
