RelationshipRegistrationService.cs

public IValidationResult<Relationship> Update(Relationship relationship, IUser author)
        {

            repository.Attach(relationship);
            relationship.UpdaterId = author.Id;
			
            relationship.DeactivatedAt = DateTime.Now;

            if (relationship.IsActive)
                relationship.IsActive = false;
            else
                relationship.IsActive = true;
			
            repository.MarkAsModified(relationship);

            repository.Save();

            
            var result = new BaseValidationResult<Relationship>();

            result = AddValidationResult(relationship);
            return result;
        }