public async Task <IDataResult <List <OperationClaim> > > GetClaimsAsync(User user) { var claims = await _operationClaimDal.GetClaimsAsync(user); if (claims.Count == 0) { return(new ErrorDataResult <List <OperationClaim> >(null, Messages.OperationClaimsNotFoundForUser)); } return(new SuccessDataResult <List <OperationClaim> >(claims, Messages.OperationClaimsListedForUser)); }