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  • Tom van Enckevort 107 posts 429 karma points
    May 30, 2017 @ 13:42
    Tom van Enckevort
    0

    Examine normal query doesn't work, but raw query does...

    So I'm doing something that looks to me as quite straightforward; finding a bunch of nodes that live under a specific root node:

    var searcher = ExamineManager.Instance.SearchProviderCollection[Constants.Examine.InternalSearcher];
ISearchCriteria searchCriteria = searcher.CreateSearchCriteria();

// limit to defined root node ID
var filter = searchCriteria.Field("__Path", @"\-1," + rootNodeId.ToString().MultipleCharacterWildcard().Value);

// only search events
filter = filter.And().GroupedOr(new[] { "nodeTypeAlias" }, "myEvent");

var query = filter.Compile();

// search
var results = searcher.Search(query);

    The above code gives me no results, even though there are nodes available.

    However when I change the last two lines to this:

    var query = filter.Compile() as LuceneSearchCriteria;

// create new query using the raw Lucene query string
var query2 = searcher.CreateSearchCriteria().RawQuery(query.Query.ToString());

// search
var results = searcher.Search(query2);

    And it now does return the correct results...

    Does anyone know why that would be the case?

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  • Adam 8 posts 86 karma points
    Jun 27, 2019 @ 14:40
    Adam
    1

    Normally when you have that situation, means that something is wrong with your query. In your case try to replace:

    var filter = searchCriteria.Field("__Path", @"\-1," + rootNodeId.ToString().MultipleCharacterWildcard().Value);
filter = filter.And().GroupedOr(new[] { "nodeTypeAlias" }, "myEvent");

    to

    var filter = searchCriteria.Field("__Path", ("-1," + rootNodeId.ToString() + ",").MultipleCharacterWildcard())
.And().Field("nodeTypeAlias", "myEvent");

    And it should work ;-)

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  • Tom van Enckevort 107 posts 429 karma points
    Jun 27, 2019 @ 14:44
    Tom van Enckevort
    1

    Thanks for the reply.

    Unfortunately I'm not able to test this, since it was over two years ago since I worked on this particular project :-)

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  • Adam 8 posts 86 karma points
    Jun 27, 2019 @ 19:47
    Adam
    0

    Ahh, no prob, I just placed this comment here in case if any one else will have similar issue :)

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  • Mike Chambers 636 posts 1253 karma points c-trib
    Aug 22, 2019 @ 08:24
    Mike Chambers
    0

    Hi Tom, when using the fluent API as you have it, if I look at the resultant lucene query

    string stringToParse = searchCriteria.ToString();
int indexOfPropertyValue = stringToParse.IndexOf("LuceneQuery:") + 12;
string rawQuery = stringToParse.Substring(indexOfPropertyValue).TrimEnd('}');

    I see 

    +__Path:1 +nodeTypeAlias:myEvent

    the negative seems to be stripped???

    I'm querying the internalIndexer on an umb 8.1.2 site... Do you know why this is, and any work arounds?

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  • Tom van Enckevort 107 posts 429 karma points
    Aug 22, 2019 @ 08:27
    Tom van Enckevort
    0

    Sorry, I haven't used Examine in v8 yet, so I don't know whether things might work differently there compared to v7.

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