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