examine helpers converting negative numbers to positive

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Jason Espin 368 posts 1335 karma points

Aug 28, 2015 @ 13:08

Hi all,

I am currently building an examine query in Umbraco based upon a media index I have created in Umbraco.

My query is built as follows:

BaseSearchProvider MediaSearcher = Examine.ExamineManager.Instance.SearchProviderCollection["MediaSearcher"];
ISearchCriteria mediaCriteria = MediaSearcher.CreateSearchCriteria();
            IBooleanOperation mediaQuery = mediaCriteria.Field("parentId", "-1");
            switch (umbraco_node.ContentType.Alias.ToLower())
            {
                case "country":
                    mediaQuery = mediaQuery.And().Field("nodeTypeAlias", "countryImages");
                break;

                case "area" :
                    mediaQuery = mediaQuery.And().Field("nodeTypeAlias", "areaImages");
                break;

                case "city" :
                    mediaQuery = mediaQuery.And().Field("nodeTypeAlias", "cityImages");
                break;

                case "activity" :
                    mediaQuery = mediaQuery.And().Field("nodeTypeAlias", "activityImages");
                break;

                case "hotel" :
                    mediaQuery = mediaQuery.And().Field("nodeTypeAlias", "hotelImages");
                break;

                case "package" :
                    mediaQuery = mediaQuery.And().Field("nodeTypeAlias", "packageImages");
                break;
            }

            ISearchResults mediaResults = MediaSearcher.Search(mediaQuery.Compile());

The problem I am facing is this should be returning results and in the back office searcher is however I think there may be a bug in the Umbraco helpers as my query when compiled is being converted to the following:

{+parentId:1 +nodeTypeAlias:countryimages}

This is obviously incorrect as I have clearly specified -1 above.

Could someone tell me the best way to force this value to be negative?

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Mark Bowser 273 posts 860 karma points c-trib

Aug 28, 2015 @ 17:48
0
To be honest, I haven't tried this, so it might not work, but I'm hopeful. Try escaping the -1, so
```
IBooleanOperation mediaQuery = mediaCriteria.Field("parentId", "\-1");
```
I believe that the - symbol tells lucene to exclude some values. Check out this raw lucene query tutorial

In the Examine Management dashboard on one of our dev sites, I tried running this query as a lucene search and had errors:
```
parentID: -1
```
But I got the expected results when I ran this query:
```
parentID: \-1
```
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Jason Espin 368 posts 1335 karma points

Sep 09, 2015 @ 09:25

0

Hi Mark,

Unfortunately, that was the first thing I tried and when it is run in code it seems to ignore the escape character and still processes this as 1. I therefore had to revert to using the raw lucene query methods where I built my query up in a string and then passed it into the searcher.

Cheers,

Jason

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