public async Task <bool> Update(HelixEventViewModel requestItem)
{
HelixEvent helixEvent = null;
ICollection <Product> products = null;
ICollection <HelixEventProduct> eventProducts;
try
{
helixEvent = ModelConverter.ParseHelixEvent(requestItem);
products = ModelConverter.ParseProducts(requestItem.Products);
eventProducts = ModelConverter.ParseEventProducts(requestItem.Id, requestItem.Products);
}
catch (Exception ex)
{
/** In real application,
* Encapsulate the details in the layer-specific log files for further troubleshooting
* and wrap it in user-friendly manner
**/
throw ex;
}
try
{
/// Update Event
bool isEventUpdateOk = await _helixEventDbService.Update(helixEvent);
if (isEventUpdateOk)
{
helixEvent = await _helixEventDbService.GetById(helixEvent.HelixEventId);
/// Update Products (if any new product pops up)
bool isProductsUpdateOk = await _productDbService.UpdateBatch(products);
if (isProductsUpdateOk)
{
/// Update the event-specific related product info
bool isLinkageUpdateOk = await _eventProductDbService.UpdateBatch(helixEvent.HelixEventId, eventProducts);
if (isLinkageUpdateOk)
{
helixEvent.ProductsLink = _eventProductDbService.GetAllByEventId(helixEvent.HelixEventId);
await _helixEventDbService.Update(helixEvent);
/// Only commit the changes if everything is updated successfully
await _dbContext.SaveChangesAsync();
}
else
{
throw new Exception("Updating Linkage failed!");
}
}
else
{
throw new Exception("Updating Products failed!");
}
}
else
{
throw new Exception("Updating Events failed!");
}
}
catch (Exception ex)
{
/** In real application,
* Encapsulate the details in the layer-specific log files for further troubleshooting
* and wrap it in user-friendly manner
**/
throw ex;
}
return(true);
}
