private Expression <Func <Anime, bool> > ExtendExpressionWithSearchCriteria(Expression <Func <Anime, bool> > predicate, AnimeSearchCriteria searchCriteria)
{
return(predicate
.And(searchCriteria.MalId != null && searchCriteria.MalId.Count > 0, () => anime => searchCriteria.MalId.Contains(anime.MalId))
.And(!string.IsNullOrWhiteSpace(searchCriteria.Title), () => anime =>
anime.Title.Contains(searchCriteria.Title, StringComparison.InvariantCultureIgnoreCase) ||
(!string.IsNullOrWhiteSpace(anime.JapaneseTitle) && anime.JapaneseTitle.Contains(searchCriteria.Title, StringComparison.InvariantCultureIgnoreCase)) ||
(!string.IsNullOrWhiteSpace(anime.EnglishTitle) && anime.EnglishTitle.Contains(searchCriteria.Title, StringComparison.InvariantCultureIgnoreCase)) ||
(!string.IsNullOrWhiteSpace(anime.TitleSynonyms) && anime.TitleSynonyms.Contains(searchCriteria.Title, StringComparison.InvariantCultureIgnoreCase)))
.And(searchCriteria.SeasonId.HasValue, () => anime => searchCriteria.SeasonId.Equals(anime.SeasonId.Value))
.And(searchCriteria.AnimeTypeId.HasValue && searchCriteria.AnimeTypeId.Value > 0, () => anime => searchCriteria.AnimeTypeId.Equals(anime.TypeId.Value)));
}
public Expression <Func <Anime, bool> > BuildExpression(AnimeSearchCriteria searchCriteria)
{
var predicate = PredicateBuilder.True <Anime>();
return(searchCriteria != null?ExtendExpressionWithSearchCriteria(predicate, searchCriteria) : predicate);
}