private async Task <bool> SaveGuard(UpdateCategoryProcessStartedEvent categoryChangedEvent)
{
var existingCategoryResult = await _categorySearchHandler.GetById(new GetCategoryByIdQuery(categoryChangedEvent.Id));
if (!existingCategoryResult.Success)
{
var failedEvent =
new UpdatingCategoryFailedEvent(categoryChangedEvent.Id, CategoryModificationStatus.NotFound, categoryChangedEvent.CorrelationId);
await this.SaveAndDispatchEvent(categoryChangedEvent.Id, failedEvent);
_logger.LogProgress(OperationStatus.Failed, $"Category({categoryChangedEvent.Id}) cannot be found", categoryChangedEvent.CorrelationId);
return(false);
}
var existingCategoryWithSameNameResult = await _categorySearchHandler.GetByName(new GetCategoryByNameQuery(categoryChangedEvent.Name));
if (existingCategoryWithSameNameResult.Success)
{
var failedEvent = new UpdatingCategoryFailedEvent(categoryChangedEvent.Id, CategoryModificationStatus.DuplicatedName,
categoryChangedEvent.CorrelationId);
await this.SaveAndDispatchEvent(categoryChangedEvent.Id, failedEvent);
_logger.LogProgress(OperationStatus.Failed, $"Cannot save category({categoryChangedEvent.Id}). Duplicated name", categoryChangedEvent.CorrelationId);
return(false);
}
return(true);
}
public async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, HttpMethods.Get, Route = "category/{id:guid}")] HttpRequest req,
string id)
{
var categoryResult = await _categorySearchHandler.GetById(new GetCategoryByIdQuery(id));
if (!categoryResult.Success)
{
return(new NotFoundResult());
}
return(new OkObjectResult(categoryResult.Value));
}
public async Task <ICategoryDeleteValidationResult> CanDelete(string id)
{
var existingCategoryResult = await _categorySearchHandler.GetById(new GetCategoryByIdQuery(id));
if (!existingCategoryResult.Success)
{
return(new FailedCategoryDeleteValidationResult(CategoryModificationStatus.NotFound));
}
var categoryUsage = await _usedCategoryRepository.GetCategoryUsageById(id);
var canDelete = categoryUsage == null || categoryUsage.UsageCounter == default;
return(canDelete ?
(ICategoryDeleteValidationResult) new SuccessfulDeleteValidationResult()
:
(ICategoryDeleteValidationResult) new FailedCategoryDeleteValidationResult(CategoryModificationStatus.Used));
}
