public async Task AddHeroAbilityStat(HeroAbilityStat stat)
{
bool success;
DbUpdateException caughtException = null;
try
{
await dataSource.AddEntity <HeroAbilityStat>(stat);
success = true;
}
catch (DbUpdateException e)
{
success = false;
caughtException = e;
}
if (!success)
{
//check if there is already a stat with this id and if so throw error due to duplicate
var lookupStat = await dataSource.LookupHeroAbilityStat(stat.HeroId, stat.AbilityId);
if (lookupStat != null)
{
throw new StatUpdaterException("A duplicate stat already exists.", caughtException);
}
else
{
throw new StatUpdaterException("An error occurred when adding a stat.", caughtException);
}
}
}
public async Task UpdateHeroAbilityStat(HeroAbilityStat stat)
{
bool success;
DbUpdateConcurrencyException caughtException = null;
try
{
await dataSource.UpdateEntity <HeroAbilityStat>(stat);
success = true;
}
catch (DbUpdateConcurrencyException e)
{
success = false;
caughtException = e;
}
if (!success)
{
//check if there exists this stat if there isnt theres a problem or its been deleted etc so throw exception
var lookupStat = await dataSource.LookupHeroAbilityStat(stat.HeroId, stat.AbilityId);
if (lookupStat == null)
{
//throw error no stat to update
throw new StatUpdaterException("No existing stat was found to update.", caughtException);
}
//if it does exist but we cant update for some reason rethrow original exception.
throw new StatUpdaterException("An exception occurred when trying to update a stat.", caughtException);
}
}
public static HeroAbilityStatDataTransferObject CreateHeroAbilityStatDataTransferObject(HeroAbilityStat a)
{
return(new HeroAbilityStatDataTransferObject
{
HeroId = a.HeroId,
AbilityId = a.AbilityId,
Matches = a.Matches,
Wins = a.Wins
});
}
