Linq distinct record containing keywords

Question

I need to return a distinct list of records based on a car keywords search like: \"Alfa 147\"

The problem is that, as I have 3 \"Alfa\" cars, it returns 1 + 3 records (i

Answer 1

Maybe this is close? At least the subqueries open it up a little for you to work with.

var query =
  from c in categoryQuery
  let keywords =
  (
    from k in keywordQuery where splitKeywords.Contains(k.Name)
    join kac in keywordAdCategoryQuery on k.Id equals kac.Keyword_Id
    where kac.Category_Id == c.Id
    join a in adQuery on kac.Ad_Id equals a.Id
    select k.Id
  ).Distinct()
  where keywords.Any()
  select new CategoryListByKeywordsDetailDto
  {
    Id = c.Id,
    Name = c.Name,
    SearchCount =
    (
      from kac in keywordAdCategoryQuery
      where kac.Category_Id == c.Id
      join kId in keywords on kac.Keyword_Id equals kId
      select kac.Id
    ).Distinct().Count(),
    ListController = c.ListController,
    ListAction = c.ListAction
  };