Yep, you dropped a couple of bits. Try this instead:
<?php
// -----
// Part of the "Zen Tags" plugin for Zen Cart v1.5.6 (and later)
// Copyright (C) 2018-2019, Vinos de Frutas Tropicales (lat9)
// @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
//
class zcObserverZenTagsSearch extends base
{
public function __construct()
{
if (defined('ZEN_TAGS_ENABLE') && ZEN_TAGS_ENABLE == 'true') {
$this->tID = (isset($_GET['tID']) && ((int)$_GET['tID']) > 0) ? ((int)$_GET['tID']) : false;
$this->order_by = '';
if ($this->tID !== false || (defined('ZEN_TAGS_SEARCH_ALWAYS') && ZEN_TAGS_SEARCH_ALWAYS == 'true')) {
$this->attach(
$this,
array(
'NOTIFY_SEARCH_ORDERBY_STRING',
'NOTIFY_SEARCH_FROM_STRING',
'NOTIFY_SEARCH_WHERE_STRING',
'NOTIFY_SEARCH_SELECT_STRING'
)
);
}
}
}
public function update(&$class, $eventID)
{
switch ($eventID) {
case 'NOTIFY_SEARCH_SELECT_STRING':
if (!empty($GLOBALS['keywords']) && !empty($_GET['keyword']) && zen_parse_search_string(stripslashes($_GET['keyword']), $search_keywords)) {
$in_tag_select = '';
foreach ($search_keywords as $current_keyword) {
switch ($current_keyword) {
case '(':
case ')':
case 'and':
case 'or': //- Fall-through from above ...
$in_tag_select .= " $current_keyword ";
break;
default:
$in_tag_select .= "t.tag_name LIKE '%:keywords%'";
$in_tag_select = $GLOBALS['db']->bindVars($in_tag_select, ':keywords', $current_keyword, 'noquotestring');
break;
}
}
$GLOBALS['select_str'] .= ", IF (t2p.tag_mapping_id = p.products_id and t2p.tag_id = t.tag_id AND ($in_tag_select), 1, 0) AS in_tag ";
$this->order_by = ' in_tag DESC,';
}
break;
case 'NOTIFY_SEARCH_FROM_STRING':
$GLOBALS['from_str'] = $this->insertAfter($GLOBALS['from_str'], ' c,', ' ' . TABLE_TAGS . ' t, ');
$GLOBALS['from_str'] .= PHP_EOL . "LEFT JOIN " . TABLE_TAGS_TO_PRODUCTS . ' t2p ON t2p.tag_mapping_id = p.products_id ';
break;
case 'NOTIFY_SEARCH_WHERE_STRING':
global $keywords, $where_str;
if ($this->tID !== false) {
$p2c_str = 'p2c.categories_id = c.categories_id';
$p2c_pos = strpos($where_str, $p2c_str);
$GLOBALS['where_str'] = substr($GLOBALS['where_str'], 0, $p2c_pos + strlen($p2c_str)) . " AND t2p.tag_id = {$this->tID} )";
} else {
if (!empty($GLOBALS['keywords']) && isset($_GET['keyword']) && zen_parse_search_string(stripslashes($_GET['keyword']), $search_keywords)) {
$tags_where = 'AND ((t.tag_id = t2p.tag_id AND (';
foreach ($search_keywords as $current_keyword) {
switch ($current_keyword) {
case '(':
case ')':
case 'and':
case 'or':
$tags_where .= " $current_keyword ";
break;
default:
$tags_where .= "t.tag_name LIKE '%:keywords%'";
$tags_where = $GLOBALS['db']->bindVars($tags_where, ':keywords', $current_keyword, 'noquotestring');
break;
}
}
$GLOBALS['where_str'] = str_replace('AND ((', $tags_where . ')) OR (', $GLOBALS['where_str']);
}
}
break;
case 'NOTIFY_SEARCH_ORDERBY_STRING':
if ($this->tID !== false) {
$GLOBALS['keywords'] = "tag ({$GLOBALS['keywords']})";
}
$GLOBALS['listing_sql'] = str_ireplace('order by', 'order by' . $this->order_by, $GLOBALS['listing_sql']);
break;
default:
break;
}
}
protected function insertAfter($the_string, $insert_after, $insert_string)
{
$insert_pos = strpos($the_string, $insert_after);
if ($insert_pos === false) {
trigger_error("Missing 'anchor' string ($insert_after) from 'base' string ($the_string); the search does not include any tags.", E_USER_WARNING);
} else {
$the_string = substr_replace($the_string, $insert_string, $insert_pos + strlen($insert_after), 0);
}
return $the_string;
}
}
