protected override IQuery <Bid> ApplyWhereClause(IQuery <Bid> query, BidFilterDto filter)
{
var definedPredicates = new List <IPredicate>();
AddIfDefined(FilterAuction(filter), definedPredicates);
AddIfDefined(FilterBuyer(filter), definedPredicates);
if (definedPredicates.Count == 0)
{
return(query);
}
if (definedPredicates.Count == 1)
{
return(query.Where(definedPredicates.First()));
}
var resultPredicate = new CompositePredicate(definedPredicates);
return(query.Where(resultPredicate));
}
private static SimplePredicate FilterBuyer(BidFilterDto filter)
{
return(filter.BuyerId.Equals(Guid.Empty)
? null
: new SimplePredicate(nameof(Bid.BuyerId), ValueComparingOperator.Equal, filter.BuyerId));
}
