FuzzyLikeThis.php

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<?php
class FuzzyLikeThis extends \Elastica\Query\AbstractQuery {
    // phpcs:disable PSR2.Classes.PropertyDeclaration.Underscore
    protected $_fields = [];
    protected $_likeText = '';
    protected $_ignoreTF = false;
    protected $_maxQueryTerms = 25;
    protected $_fuzziness = 2;
    protected $_prefixLength = 0;
    protected $_analyzer;
    // phpcs:enable
 
    public function addFields( array $fields ) {
        $this->_fields = $fields;
 
        return $this;
    }
 
    public function setLikeText( $text ) {
        $text = trim( $text );
        $this->_likeText = $text;
 
        return $this;
    }
 
    public function setIgnoreTF( $ignoreTF ) {
        $this->_ignoreTF = (bool)$ignoreTF;
 
        return $this;
    }
 
    public function setFuzziness( $value ) {
        $value = (int)$value;
        $this->_fuzziness = $value;
 
        return $this;
    }
 
    public function setPrefixLength( $value ) {
        $this->_prefixLength = (int)$value;
 
        return $this;
    }
 
    public function setMaxQueryTerms( $value ) {
        $this->_maxQueryTerms = (int)$value;
 
        return $this;
    }
 
    public function setAnalyzer( $text ) {
        $text = trim( $text );
        $this->_analyzer = $text;
 
        return $this;
    }
 
    public function toArray() {
        $args = [];
        if ( !empty( $this->_fields ) ) {
            $args['fields'] = $this->_fields;
        }
 
        if ( !empty( $this->_analyzer ) ) {
            $args['analyzer'] = $this->_analyzer;
        }
 
        $args['fuzziness'] = ( $this->_fuzziness > 0 ) ? $this->_fuzziness : 0;
 
        $args['like_text'] = $this->_likeText;
        $args['prefix_length'] = $this->_prefixLength;
        $args['ignore_tf'] = $this->_ignoreTF;
        $args['max_query_terms'] = $this->_maxQueryTerms;
 
        $data = parent::toArray();
        $args = array_merge( $args, $data['fuzzy_like_this'] );
 
        return [ 'fuzzy_like_this' => $args ];
    }
}