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/home/tahkoom/public_html/wp-content/plugins/chatbot/includes/class-wpwbot-search.php
<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( ! class_exists( 'wpwBot_Search' ) ) :
/**
* Class for plugin search
*/
class wpwBot_Search {
/**
* @var AWS_Search Array of all plugin data $data
*/
private $data = array();
/**
* Return a singleton instance of the current class
*
* @return object
*/
public static function factory() {
static $instance = false;
if ( ! $instance ) {
$instance = new self();
}
return $instance;
}
/**
* Constructor
*/
public function __construct() {}
/*
* Search
*/
public function search( $keyword = '' ) {
global $wpdb;
$special_chars = $this->get_special_chars();
$s = $keyword ? esc_attr( $keyword ) : esc_attr( $_POST['keyword'] );
$s = stripslashes( $s );
$s = str_replace( array( "\r", "\n" ), '', $s );
$s = str_replace( $special_chars, '', $s );
$show_cats = 'true';
$show_tags = 'true';
$search_in = 'true';
$outofstock = 'true';
$search_in_arr = explode( ',', 'title,content,category,excerpt,tag,sku');
// Search in title if all options is disabled
if ( ! $search_in ) {
$search_in_arr = array( 'title' );
}
$categories_array = array();
$tags_array = array();
$this->data['s'] = $s;
$this->data['results_num'] = 50;//This static before setting option on wpwbot admin panel.
$this->data['search_terms'] = array();
$this->data['search_terms'] = array_unique( explode( ' ', $s ) );
$this->data['search_in'] = $search_in_arr;
$this->data['outofstock'] = $outofstock;
$posts_ids = $this->query_index_table();
$products_array = $this->get_products( $posts_ids );
return $products_array;
}
/*
* Get special characters that must be striped
*/
public function get_special_chars() {
$chars = array(
'-',
'_',
'|',
'+',
'`',
'~',
'!',
'@',
'#',
'$',
'%',
'^',
'&',
'*',
'(',
')',
'\\',
'?',
';',
':',
"'",
'"',
".",
",",
"<",
">",
"{",
"}",
"/",
"[",
"]",
);
return apply_filters( 'aws_special_chars', $chars );
}
/*
* Query in index table
*/
private function query_index_table() {
global $wpdb;
$table_name = $wpdb->prefix . QCLD_wpCHATBOT_INDEX_TABLE;
$search_in_arr = $this->data['search_in'];
$results_num = $this->data['results_num'];
$outofstock = $this->data['outofstock'];
$reindex_version = get_option( 'aws_reindex_version' );
$query = array();
$query['search'] = '';
$query['source'] = '';
$query['relevance'] = '';
$query['stock'] = '';
$query['visibility'] = '';
$query['lang'] = '';
$search_array = array();
$source_array = array();
$relevance_array = array();
$new_relevance_array = array();
foreach ( $this->data['search_terms'] as $search_term ) {
$search_term_len = strlen( $search_term );
$relevance_title = 200 + 20 * $search_term_len;
$relevance_content = 35 + 4 * $search_term_len;
$relevance_title_like = 40 + 2 * $search_term_len;
$relevance_content_like = 35 + 1 * $search_term_len;
$search_term_like = preg_replace( '/(s|es|ies)$/i', '', $search_term );
$like = '%' . $wpdb->esc_like( $search_term_like ) . '%';
if ( $search_term_len > 1 ) {
$search_array[] = $wpdb->prepare( '( term LIKE %s )', $like );
} else {
$search_array[] = $wpdb->prepare( '( term = "%s" )', $search_term );
}
foreach ( $search_in_arr as $search_in_term ) {
switch ( $search_in_term ) {
case 'title':
$relevance_array['title'][] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );
$relevance_array['title'][] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );
break;
case 'content':
$relevance_array['content'][] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
$relevance_array['content'][] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
break;
case 'excerpt':
$relevance_array['content'][] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
$relevance_array['content'][] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
break;
case 'category':
$relevance_array['category'][] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );
$relevance_array['category'][] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );
break;
case 'tag':
$relevance_array['tag'][] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );
$relevance_array['tag'][] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );
break;
case 'sku':
$relevance_array['sku'][] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );
$relevance_array['sku'][] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );
break;
}
}
}
// Sort 'relevance' queries in the array by search priority
foreach ( $search_in_arr as $search_in_item ) {
if ( isset( $relevance_array[$search_in_item] ) ) {
$new_relevance_array[$search_in_item] = implode( ' + ', $relevance_array[$search_in_item] );
}
}
foreach ( $search_in_arr as $search_in_term ) {
$source_array[] = "term_source = '{$search_in_term}'";
}
$query['relevance'] .= sprintf( ' (SUM( %s )) ', implode( ' + ', $new_relevance_array ) );
$query['search'] .= sprintf( ' AND ( %s )', implode( ' OR ', $search_array ) );
$query['source'] .= sprintf( ' AND ( %s )', implode( ' OR ', $source_array ) );
if ( $reindex_version && version_compare( $reindex_version, '1.16', '>=' ) ) {
if ( $outofstock !== 'true' ) {
$query['stock'] .= " AND in_stock = 1";
}
$query['visibility'] .= " AND NOT visibility LIKE '%hidden%'";
}
if ( ( defined( 'ICL_SITEPRESS_VERSION' ) || function_exists( 'pll_current_language' ) ) && $reindex_version && version_compare( $reindex_version, '1.20', '>=' ) ) {
$current_lang = false;
if ( has_filter('wpml_current_language') ) {
$current_lang = apply_filters( 'wpml_current_language', NULL );
} elseif ( function_exists( 'pll_current_language' ) ) {
$current_lang = pll_current_language();
}
if ( $current_lang ) {
$query['lang'] .= $wpdb->prepare( " AND ( lang LIKE %s OR lang = '' )", $current_lang );
}
} elseif( function_exists( 'qtranxf_getLanguage' ) ) {
$current_lang = qtranxf_getLanguage();
if ( $current_lang ) {
$query['lang'] .= $wpdb->prepare( " AND ( lang LIKE %s OR lang = '' )", $current_lang );
}
}
$sql = $wpdb->prepare("SELECT
distinct ID,
{$query['relevance']} as relevance
FROM
{$table_name}
WHERE
type = 'product'
{$query['source']}
{$query['search']}
{$query['stock']}
{$query['visibility']}
{$query['lang']}
GROUP BY ID
ORDER BY
relevance DESC
LIMIT 0, %d
", $results_num);
//SQL was processed through $wpdb->prepare() in many steps.
$posts_ids = $this->get_posts_ids( $sql ); //DB Call OK, No Caching OK
return $posts_ids;
}
/*
* Get array of included to search result posts ids
*/
private function get_posts_ids( $sql ) {
global $wpdb;
$posts_ids = array();
/**Passed SQL was processed using $wpdb->prepare() in line 198 and above*/
// phpcs:ignore
$search_results = $wpdb->get_results( $sql ); //DB Call OK, No Caching OK
if ( !empty( $search_results ) && !is_wp_error( $search_results ) && is_array( $search_results ) ) {
foreach ( $search_results as $search_result ) {
$post_id = intval( $search_result->ID );
if ( ! in_array( $post_id, $posts_ids ) ) {
$posts_ids[] = $post_id;
}
}
}
unset( $search_results );
return $posts_ids;
}
/**
* @param $posts_ids
* @return array
*/
public function get_load_more_products($posts_ids){
return $this->get_products($posts_ids);
}
/*
* Get products info
*/
private function get_products( $posts_ids ) {
$product_per_page = get_option('qlcd_wp_chatbot_ppp') != '' ? get_option('qlcd_wp_chatbot_ppp') : 10;
$products_array = array();
$more_product_ids=array();
$products_num =count( $posts_ids );
if ( $products_num > 0 ) {
//if result products ids are more than per_page then keep remaing ids as load more option.
if($products_num >$product_per_page){
$more_product_ids=array_slice($posts_ids,$product_per_page);
$current_product_ids=array_slice($posts_ids,0,$product_per_page);
}else{
$current_product_ids=$posts_ids;
}
foreach ( $current_product_ids as $post_id ) {
$product = wc_get_product( $post_id );
$products_array[] = $product;
}
}
return array('products'=>$products_array,'more_ids'=>$more_product_ids,'total_products'=>$products_num);
}
}
endif;
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