public SearchController(
     UserManager <CertificateUser> userManager,
     ICertificateHandler certificateHandler,
     IUserSearch userSearch)
 {
     this.userManager        = userManager;
     this.certificateHandler = certificateHandler;
     this.userSearch         = userSearch;
 }
 public CertificateController(ICertificateHandler certificateHandler,
                              UserManager <CertificateUser> userManager,
                              IFavoriteHandler favoriteHandler,
                              SignInManager <CertificateUser> signInManager)
 {
     this.CertificateHandler = certificateHandler;
     this.userManager        = userManager;
     this.favoriteHandler    = favoriteHandler;
     this.signInManager      = signInManager;
 }