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 Handle(CreateCategoryProcessStartedEvent categoryChangedEvent)
{
var existingCategoryWithName = await _categorySearchHandler.GetByName(new GetCategoryByNameQuery(categoryChangedEvent.Name));
if (existingCategoryWithName.Success)
{
var failedEvent = new CreatingCategoryFailedEvent(categoryChangedEvent.Id, CategoryModificationStatus.DuplicatedName, categoryChangedEvent.CorrelationId);
await this.SaveAndDispatchEvent(categoryChangedEvent.Id, failedEvent);
_logger.LogProgress(OperationStatus.Failed, $"Cannot save the category: {categoryChangedEvent.Id}. Duplicated name", categoryChangedEvent.CorrelationId);
return;
}
var category = new CategoryDto(
categoryChangedEvent.Id,
categoryChangedEvent.Name,
categoryChangedEvent.Description,
categoryChangedEvent.SortOrder);
var saveResult = await _categoryIndexer.Index(category);
if (!saveResult.Success)
{
var failedEvent = new CreatingCategoryFailedEvent(category.Id, CategoryModificationStatus.UnexpectedProblem, categoryChangedEvent.CorrelationId);
await this.SaveAndDispatchEvent(categoryChangedEvent.Id, failedEvent);
_logger.LogProgress(OperationStatus.Failed, $"Problem occured while saving the category: {categoryChangedEvent.Id}", categoryChangedEvent.CorrelationId);
return;
}
var successEvent = this.GetSuccessEvent(categoryChangedEvent);
_logger.LogProgress(OperationStatus.Finished, string.Empty, categoryChangedEvent.CorrelationId);
await this.SaveAndDispatchEvent(categoryChangedEvent.Id, successEvent);
}
public async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, HttpMethods.Get, Route = "category/name/{name}")] HttpRequest req,
string name)
{
var categoryResult = await _categorySearchHandler.GetByName(new GetCategoryByNameQuery(name));
if (!categoryResult.Success)
{
return(new NotFoundResult());
}
return(new OkObjectResult(categoryResult.Value));
}
public async Task Handle(CategoryUsedEvent categoryUsedEvent)
{
_logger.LogInformation($"{nameof(CategoryUsedEvent)} with name: {categoryUsedEvent.Name}, has been used in {categoryUsedEvent.UsedIn}");
var categoryResult = await _categorySearchHandler.GetByName(new GetCategoryByNameQuery(categoryUsedEvent.Name));
if (!categoryResult.Success)
{
_logger.LogInformation($"{nameof(CategoryUsedEvent)} with name: {categoryUsedEvent.Name} cannot be find");
return;
}
await _usedCategoryRepository.CreateOrUpdate(categoryResult.Value.Id, categoryUsedEvent.UsedIn);
_logger.LogProgress(OperationStatus.Finished, string.Empty, categoryUsedEvent.CorrelationId);
}