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elasticsearchfacet

Elasticsearch: include specific facet values

elasticsearch provides parameter to exclude certain facets from facets values like this.

 "facets" : {
        "tag" : {
            "terms" : {
                "field" : "tag",
                "exclude" : ["term1", "term2"]
            }
        }
    }

Is there any possibility to include certain facets?

I'm trying to get counts for facets that have been already selected by user along with global facets. E,g. you selected word science with count 20 (from autocomplete), i recompute facets to show other words that migh be selected, but the word science would not get to facet results since other words from global facets have count more than 400.

Is there any particular solution for this task?

Thanks for help

Solution

  • You can use scripting for that. The script will be run for each facet entry with the input variable term that contains the current value. The entry will be included or not on the final facet depending on the result of the script. If it returns false it will be excluded, otherwise it will be included. 

    "facets" : {
    "tag" : {
        "terms" : {
            "field" : "tag",
            "script" : "term == 'aaa' ? true : false"
        }
    }
}