wikimedia/mediawiki-extensions-CirrusSearch

<?php

namespace CirrusSearch\Query;

use CirrusSearch\Search\SearchContext;
use CirrusSearch\Search\SingleAggResultsType;
use Elastica\Aggregation\Sum;

/**
 * Build a query to sum up the word count of all articles
 */
class CountContentWordsBuilder {
    // The count doesn't change all that quickly. Re-run the query
    // no more than daily per-wiki.
    private const CACHE_SECONDS = 86400;

    /**
     * @param SearchContext $context the search context
     */
    public function build( SearchContext $context ) {
        $context->addSyntaxUsed( 'sum_word_count' );
        $context->setResultsType( new SingleAggResultsType( 'word_count' ) );
        $context->setRescoreProfile( 'empty' );
        $context->addAggregation(
            ( new Sum( 'word_count' ) )->setField( 'text.word_count' ) );
        $context->setCacheTtl( self::CACHE_SECONDS );
    }
}