<?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;
في جولة حصرية داخل “الغرفة الزرقاء” بقناة BBC العربية، نكشف كواليس واحدة من أكثر غرف الأخبار تطورًا في العالم.
كيف الذكاء اصطناعي يتحكم بالبث دون تدخل بشري، لتقدم تجربة بصرية مذهلة.
الفيديو يستعرض كيف تمزج BBC بين التقنية والاحتراف لتصنع نشرات إخبارية من قلب المستقبل.