private Expression <Func <Fact, bool> > BuildPredicate(FactGetPagedRequest request)
{
var predicate = PredicateBuilder.True <Fact>();
if (!string.IsNullOrWhiteSpace(request.Search))
{
predicate = predicate.And(x => x.Content.Contains(request.Search));
}
if (!string.IsNullOrWhiteSpace(request.Tag))
{
predicate = predicate.And(x => x.Tags.Select(t => t.Name).Contains(request.Tag));
}
return(predicate);
}
public override async Task <OperationResult <IPagedList <FactViewModel> > > Handle(FactGetPagedRequest request, CancellationToken cancellationToken)
{
var operation = OperationResult.CreateResult <IPagedList <FactViewModel> >();
var predicate = BuildPredicate(request);
var items = await _unitOfWork.GetRepository <Fact>()
.GetPagedListAsync(
predicate: predicate,
include: i => i.Include(x => x.Tags),
orderBy: o => o.OrderByDescending(x => x.CreatedAt),
pageIndex: request.PageIndex,
pageSize: request.PageSize,
cancellationToken: cancellationToken);
var mapped = _mapper.Map <IPagedList <FactViewModel> >(items);
operation.Result = mapped;
operation.AddSuccess("Success");
return(operation);
}