public AuthorsController(ILibraryRepository libraryRepository, IUrlHelper urlHelper, IPropertyMappingSerivce propertyMappingSerivce, ITypeHelperService typeHelperService)
 {
     _libraryRepository      = libraryRepository;
     _urlHelper              = urlHelper;
     _propertyMappingSerivce = propertyMappingSerivce;
     _typeHelperService      = typeHelperService;
 }
 public LibraryRepository(LibraryContext context, IPropertyMappingSerivce propertyMappingSerivce)
 {
     _context = context;
     _propertyMappingSerivce = propertyMappingSerivce;
 }