public async Task <ShopOperationResult> CreateAsync(PurchaseInvoice item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
_db.PurchaseInvoices.Add(item);
try
{
await _db.SaveChangesAsync();
}
catch
{
return(ShopOperationResult.Failed(_errorDescriber.DefaultError()));
}
return(ShopOperationResult.Success);
}
public async Task <ShopOperationResult> UpdateAsync(PurchaseInvoice item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
_db.PurchaseInvoices.Attach(item);
_db.PurchaseInvoices.Update(item);
try
{
await _db.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
return(ShopOperationResult.Failed(_errorDescriber.ConcurrencyFailure()));
}
return(ShopOperationResult.Success);
}
public async Task <ShopOperationResult> DeleteAsync(Guid id)
{
var item = await GetAsync(id);
if (item == null)
{
return(ShopOperationResult.Failed(_errorDescriber.NotFoundItem()));
}
_db.PurchaseInvoices.Remove(item);
try
{
await _db.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
return(ShopOperationResult.Failed(_errorDescriber.ConcurrencyFailure()));
}
return(ShopOperationResult.Success);
}