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POMixing conditional operators with facets in Elasticsearch
 

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  1. POMixing conditional operators with facets in Elasticsearch
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    <p>I am trying to match a search query against two fields, as well as filter by facets if selected from dropdowns on the page.</p> <p>When the user enters keywords it should match if found in two database fields: Title and Description. The dropdowns filter by a status, and a type. </p> <p>Here is my Tire search configuration:</p> <pre><code> def self.search(params) tire.search(load: true, page: params[:page], per_page: 25) do query do boolean do should { string "title:#{params[:query]}", default_operator: "OR" } if params[:query].present? should { string "description:#{params[:query]}", default_operator: "OR" } if params[:query].present? must { term :status_id, params[:status_id] } if params[:status_id].present? must { term :type_id, params[:type_id] } if params[:type_id].present? end end sort { by :updated_at, "desc" } if params[:query].blank? facet "status" do terms :status_id end facet "type" do terms :type_id end end end </code></pre> <p>Indexing settings:</p> <pre><code> settings :analysis =&gt; { :filter =&gt; { :my_ngram =&gt; { "type" =&gt; "nGram", "max_gram" =&gt; 10, "min_gram" =&gt; 3} }, :analyzer =&gt; { :my_analyzer =&gt; { "type" =&gt; "custom", "tokenizer" =&gt; "lowercase", "filter" =&gt; ["my_ngram"] } } } do mapping do indexes :title, boost: 10, analyzer: 'my_analyzer' indexes :description, boost: 5, analyzer: 'my_analyzer' indexes :status_id, :type =&gt; 'integer' indexes :type_id, :type =&gt; 'integer' end end </code></pre> <p>I originally only had the title and description fields, which was working fine. I am now trying to add the ability to filter by status and type. </p> <p>What is the proper way to configure this? If status is selected, it should only return records with that status. The same follows for type, and if both are selected.</p> <p>Any help is appreciated.</p> <p>It's not that errors occur, but the results no longer filter at all by either keywords or facets:</p> <pre><code>curl -X GET 'http://localhost:9200/projects/project/_search?load=true&amp;size=25&amp;pretty' -d '{"query":{"bool":{"should":[{"query_string":{"query":"title:test","default_operator":"OR"}},{"query_string":{"query":"description:test","default_operator":"OR"}}],"must":[{"term":{"status_id":{"term":"1"}}},{"term":{"type_id":{"term":"1"}}}]}},"facets":{"status":{"terms":{"field":"status_id","size":10,"all_terms":false}},"type":{"terms":{"field":"type_id","size":10,"all_terms":false}}},"size":25}' # 2013-08-16 12:08:34:791 [200] (31 msec) # # {"took":31,"timed_out":false,"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":0,"max_score":null,"hits":[]},"facets":{"status":{"_type":"terms","missing":0,"total":0,"other":0,"terms":[]},"type":{"_type":"terms","missing":0,"total":0,"other":0,"terms":[]}}} </code></pre>
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    1. COYou should try using filters rather than extra `must` queries if you don't need scoring, It will be much faster. Apart from that, what is the exact problem you are facing? Could you give an error, or list of results that aren't as expected?
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      1. USramseykhalaf
    2. COThanks for the reply. I have updated my answer with the search result. It now does not filter by keyword or facets. Would you happen to have an example of using filters as opposed to 'must' in my scenario? Perhaps this is the answer I am looking for.
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      1. USDrew
    3. COI don't know if this is the issue, but are you sure you want to be searching for the string "title:test", rather than just "test" in the `title` field? Also note that setting the analyzer like that will set both search and index time analyzers.
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      1. USramseykhalaf
 

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