public object PersistValidation(PersistValidationRequest request)
        {
            // Variables.
            var result = default(object);
            var rootId = CoreConstants.System.Root.ToInvariantString();
            var validationsRootId = GuidHelper.GetGuid(ValidationConstants.Id);
            var parentId = GuidHelper.GetGuid(request.ParentId);
            var kindId = GuidHelper.GetGuid(request.KindId);

            // Catch all errors.
            try
            {

                // Parse or create the validation ID.
                var validationId = string.IsNullOrWhiteSpace(request.ValidationId)
                    ? Guid.NewGuid()
                    : GuidHelper.GetGuid(request.ValidationId);

                // Get the ID path.
                var parent = parentId == Guid.Empty ? null : Entities.Retrieve(parentId);
                var path = parent == null
                    ? new[] { validationsRootId, validationId }
                    : parent.Path.Concat(new[] { validationId }).ToArray();

                // Create validation.
                var validation = new Validation()
                {
                    KindId = kindId,
                    Id = validationId,
                    Path = path,
                    Name = request.ValidationName,
                    Alias = request.ValidationAlias,
                    Data = JsonHelper.Serialize(request.Data)
                };

                // Persist validation.
                Persistence.Persist(validation);

                // Variables.
                var fullPath = new[] { rootId }
                    .Concat(path.Select(x => GuidHelper.GetString(x)))
                    .ToArray();

                // Success.
                result = new
                {
                    Success = true,
                    Id = GuidHelper.GetString(validationId),
                    Path = fullPath
                };

            }
            catch(Exception ex)
            {

                // Error.
                LogHelper.Error<ValidationsController>(PersistValidationError, ex);
                result = new
                {
                    Success = false,
                    Reason = UnhandledError
                };

            }

            // Return result.
            return result;
        }
        public object PersistValidation(PersistValidationRequest request)
        {
            // Variables.
            var result            = default(object);
            var rootId            = CoreConstants.System.Root.ToInvariantString();
            var validationsRootId = GuidHelper.GetGuid(ValidationConstants.Id);
            var parentId          = GuidHelper.GetGuid(request.ParentId);
            var kindId            = GuidHelper.GetGuid(request.KindId);


            // Catch all errors.
            try
            {
                // Parse or create the validation ID.
                var validationId = string.IsNullOrWhiteSpace(request.ValidationId)
                    ? Guid.NewGuid()
                    : GuidHelper.GetGuid(request.ValidationId);


                // Get the ID path.
                var parent = parentId == Guid.Empty ? null : Entities.Retrieve(parentId);
                var path   = parent == null
                    ? new[] { validationsRootId, validationId }
                    : parent.Path.Concat(new[] { validationId }).ToArray();


                // Create validation.
                var validation = new Validation()
                {
                    KindId = kindId,
                    Id     = validationId,
                    Path   = path,
                    Name   = request.ValidationName,
                    Alias  = request.ValidationAlias,
                    Data   = JsonHelper.Serialize(request.Data)
                };


                // Persist validation.
                Persistence.Persist(validation);


                // Variables.
                var fullPath = new[] { rootId }
                .Concat(path.Select(x => GuidHelper.GetString(x)))
                .ToArray();


                // Success.
                result = new
                {
                    Success = true,
                    Id      = GuidHelper.GetString(validationId),
                    Path    = fullPath
                };
            }
            catch (Exception ex)
            {
                // Error.
                LogHelper.Error <ValidationsController>(PersistValidationError, ex);
                result = new
                {
                    Success = false,
                    Reason  = UnhandledError
                };
            }


            // Return result.
            return(result);
        }