public EfUpdatePersonalPieceOfArtCommand(ArtsContext context, IMapper mapper, CreatePieceOfArtValidator validator, IApplicationActor actor)
 {
     this.context   = context;
     this.mapper    = mapper;
     this.validator = validator;
     this.actor     = actor;
 }
 public EfCreatePieceOfArtCommand(ArtsContext context, IMapper mapper, CreatePieceOfArtValidator validator)
 {
     this.context   = context;
     this.mapper    = mapper;
     this.validator = validator;
 }