public async Task Validate(HamsterUpdate model)
{
if (model == null)
{
throw new ArgumentNullException();
}
var identity = await IdentityResolver.GetIdentityAsync();
var hamster = DbContext.Hamsters.SingleOrDefault(h => h.Id == model.Id);
if (hamster.CreatedById != identity.Id)
{
throw new HamsterAccessException();
}
}