public IEnumerable <News> Find(NewsFindFilter filterModel)
{
if (filterModel == null)
{
throw new ArgumentNullException(nameof(filterModel));
}
if (filterModel.Count <= 0)
{
return(Enumerable.Empty <News>());
}
var filter = PredicateBuilder.New <News>(n => true);
if (filterModel.MainCategories != null)
{
filter = filter.And(n => filterModel.MainCategories.Contains(n.Category.Title));
}
if (filterModel.SubCategories != null)
{
filter = filter.And(n => filterModel.SubCategories.Any(c => n.Category.SubCategories.Contains(c)));
}
if (filterModel.Sources != null)
{
filter = filter.And(n => filterModel.Sources.Contains(n.Source.SiteTitle));
}
if (filterModel.KeyWord != null)
{
filter = filter.And(n => n.Title.Contains(filterModel.KeyWord) || n.Text.Contains(filterModel.KeyWord));
}
if (filterModel.From != null)
{
filter = filter.And(n => n.CreatedDate >= filterModel.From);
}
if (filterModel.To != null)
{
filter = filter.And(n => n.CreatedDate <= filterModel.To);
}
var news = _newsRepository.Read(filter)
.OrderByDescending(n => n.CreatedDate)
.Skip(filterModel.Skip)
.Take(filterModel.Count)
.ToList();
return(news);
}
public IActionResult Search([FromQuery] NewsFindFilter filter)
{
var news = _newsService.Find(filter);
return(Ok(news));
}
