/home/sharedstore/public_html/prestashop.sharedstore.ma/classes
Edit: /home/sharedstore/public_html/prestashop.sharedstore.ma/classes/Search.php (59229B)
* @copyright Since 2007 PrestaShop SA and Contributors
* @license https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
*/
/* Copied from Drupal search module, except for \x{0}-\x{2f} that has been replaced by \x{0}-\x{2c}\x{2e}-\x{2f} in order to keep the char '-' */
define(
'PREG_CLASS_SEARCH_EXCLUDE',
'\x{0}-\x{2c}\x{2e}-\x{2f}\x{3a}-\x{40}\x{5b}-\x{60}\x{7b}-\x{bf}\x{d7}\x{f7}\x{2b0}-' .
'\x{385}\x{387}\x{3f6}\x{482}-\x{489}\x{559}-\x{55f}\x{589}-\x{5c7}\x{5f3}-' .
'\x{61f}\x{640}\x{64b}-\x{65e}\x{66a}-\x{66d}\x{670}\x{6d4}\x{6d6}-\x{6ed}' .
'\x{6fd}\x{6fe}\x{700}-\x{70f}\x{711}\x{730}-\x{74a}\x{7a6}-\x{7b0}\x{901}-' .
'\x{903}\x{93c}\x{93e}-\x{94d}\x{951}-\x{954}\x{962}-\x{965}\x{970}\x{981}-' .
'\x{983}\x{9bc}\x{9be}-\x{9cd}\x{9d7}\x{9e2}\x{9e3}\x{9f2}-\x{a03}\x{a3c}-' .
'\x{a4d}\x{a70}\x{a71}\x{a81}-\x{a83}\x{abc}\x{abe}-\x{acd}\x{ae2}\x{ae3}' .
'\x{af1}-\x{b03}\x{b3c}\x{b3e}-\x{b57}\x{b70}\x{b82}\x{bbe}-\x{bd7}\x{bf0}-' .
'\x{c03}\x{c3e}-\x{c56}\x{c82}\x{c83}\x{cbc}\x{cbe}-\x{cd6}\x{d02}\x{d03}' .
'\x{d3e}-\x{d57}\x{d82}\x{d83}\x{dca}-\x{df4}\x{e31}\x{e34}-\x{e3f}\x{e46}-' .
'\x{e4f}\x{e5a}\x{e5b}\x{eb1}\x{eb4}-\x{ebc}\x{ec6}-\x{ecd}\x{f01}-\x{f1f}' .
'\x{f2a}-\x{f3f}\x{f71}-\x{f87}\x{f90}-\x{fd1}\x{102c}-\x{1039}\x{104a}-' .
'\x{104f}\x{1056}-\x{1059}\x{10fb}\x{10fc}\x{135f}-\x{137c}\x{1390}-\x{1399}' .
'\x{166d}\x{166e}\x{1680}\x{169b}\x{169c}\x{16eb}-\x{16f0}\x{1712}-\x{1714}' .
'\x{1732}-\x{1736}\x{1752}\x{1753}\x{1772}\x{1773}\x{17b4}-\x{17db}\x{17dd}' .
'\x{17f0}-\x{180e}\x{1843}\x{18a9}\x{1920}-\x{1945}\x{19b0}-\x{19c0}\x{19c8}' .
'\x{19c9}\x{19de}-\x{19ff}\x{1a17}-\x{1a1f}\x{1d2c}-\x{1d61}\x{1d78}\x{1d9b}-' .
'\x{1dc3}\x{1fbd}\x{1fbf}-\x{1fc1}\x{1fcd}-\x{1fcf}\x{1fdd}-\x{1fdf}\x{1fed}-' .
'\x{1fef}\x{1ffd}-\x{2070}\x{2074}-\x{207e}\x{2080}-\x{2101}\x{2103}-\x{2106}' .
'\x{2108}\x{2109}\x{2114}\x{2116}-\x{2118}\x{211e}-\x{2123}\x{2125}\x{2127}' .
'\x{2129}\x{212e}\x{2132}\x{213a}\x{213b}\x{2140}-\x{2144}\x{214a}-\x{2b13}' .
'\x{2ce5}-\x{2cff}\x{2d6f}\x{2e00}-\x{3005}\x{3007}-\x{303b}\x{303d}-\x{303f}' .
'\x{3099}-\x{309e}\x{30a0}\x{30fb}\x{30fd}\x{30fe}\x{3190}-\x{319f}\x{31c0}-' .
'\x{31cf}\x{3200}-\x{33ff}\x{4dc0}-\x{4dff}\x{a015}\x{a490}-\x{a716}\x{a802}' .
'\x{e000}-\x{f8ff}\x{fb29}\x{fd3e}-\x{fd3f}\x{fdfc}-\x{fdfd}' .
'\x{fd3f}\x{fdfc}-\x{fe6b}\x{feff}-\x{ff0f}\x{ff1a}-\x{ff20}\x{ff3b}-\x{ff40}' .
'\x{ff5b}-\x{ff65}\x{ff70}\x{ff9e}\x{ff9f}\x{ffe0}-\x{fffd}'
);
define(
'PREG_CLASS_NUMBERS',
'\x{30}-\x{39}\x{b2}\x{b3}\x{b9}\x{bc}-\x{be}\x{660}-\x{669}\x{6f0}-\x{6f9}' .
'\x{966}-\x{96f}\x{9e6}-\x{9ef}\x{9f4}-\x{9f9}\x{a66}-\x{a6f}\x{ae6}-\x{aef}' .
'\x{b66}-\x{b6f}\x{be7}-\x{bf2}\x{c66}-\x{c6f}\x{ce6}-\x{cef}\x{d66}-\x{d6f}' .
'\x{e50}-\x{e59}\x{ed0}-\x{ed9}\x{f20}-\x{f33}\x{1040}-\x{1049}\x{1369}-' .
'\x{137c}\x{16ee}-\x{16f0}\x{17e0}-\x{17e9}\x{17f0}-\x{17f9}\x{1810}-\x{1819}' .
'\x{1946}-\x{194f}\x{2070}\x{2074}-\x{2079}\x{2080}-\x{2089}\x{2153}-\x{2183}' .
'\x{2460}-\x{249b}\x{24ea}-\x{24ff}\x{2776}-\x{2793}\x{3007}\x{3021}-\x{3029}' .
'\x{3038}-\x{303a}\x{3192}-\x{3195}\x{3220}-\x{3229}\x{3251}-\x{325f}\x{3280}-' .
'\x{3289}\x{32b1}-\x{32bf}\x{ff10}-\x{ff19}'
);
define(
'PREG_CLASS_PUNCTUATION',
'\x{21}-\x{23}\x{25}-\x{2a}\x{2c}-\x{2f}\x{3a}\x{3b}\x{3f}\x{40}\x{5b}-\x{5d}' .
'\x{5f}\x{7b}\x{7d}\x{a1}\x{ab}\x{b7}\x{bb}\x{bf}\x{37e}\x{387}\x{55a}-\x{55f}' .
'\x{589}\x{58a}\x{5be}\x{5c0}\x{5c3}\x{5f3}\x{5f4}\x{60c}\x{60d}\x{61b}\x{61f}' .
'\x{66a}-\x{66d}\x{6d4}\x{700}-\x{70d}\x{964}\x{965}\x{970}\x{df4}\x{e4f}' .
'\x{e5a}\x{e5b}\x{f04}-\x{f12}\x{f3a}-\x{f3d}\x{f85}\x{104a}-\x{104f}\x{10fb}' .
'\x{1361}-\x{1368}\x{166d}\x{166e}\x{169b}\x{169c}\x{16eb}-\x{16ed}\x{1735}' .
'\x{1736}\x{17d4}-\x{17d6}\x{17d8}-\x{17da}\x{1800}-\x{180a}\x{1944}\x{1945}' .
'\x{2010}-\x{2027}\x{2030}-\x{2043}\x{2045}-\x{2051}\x{2053}\x{2054}\x{2057}' .
'\x{207d}\x{207e}\x{208d}\x{208e}\x{2329}\x{232a}\x{23b4}-\x{23b6}\x{2768}-' .
'\x{2775}\x{27e6}-\x{27eb}\x{2983}-\x{2998}\x{29d8}-\x{29db}\x{29fc}\x{29fd}' .
'\x{3001}-\x{3003}\x{3008}-\x{3011}\x{3014}-\x{301f}\x{3030}\x{303d}\x{30a0}' .
'\x{30fb}\x{fd3e}\x{fd3f}\x{fe30}-\x{fe52}\x{fe54}-\x{fe61}\x{fe63}\x{fe68}' .
'\x{fe6a}\x{fe6b}\x{ff01}-\x{ff03}\x{ff05}-\x{ff0a}\x{ff0c}-\x{ff0f}\x{ff1a}' .
'\x{ff1b}\x{ff1f}\x{ff20}\x{ff3b}-\x{ff3d}\x{ff3f}\x{ff5b}\x{ff5d}\x{ff5f}-' .
'\x{ff65}'
);
/*
* Matches all CJK characters that are candidates for auto-splitting
* (Chinese, Japanese, Korean).
* Contains kana and BMP ideographs.
*/
define('PREG_CLASS_CJK', '\x{3041}-\x{30ff}\x{31f0}-\x{31ff}\x{3400}-\x{4db5}\x{4e00}-\x{9fbb}\x{f900}-\x{fad9}');
class SearchCore
{
/**
* @var int
*/
private static $totalWordInSearchWordTable;
/**
* @var int
*/
public static $coefMin;
/**
* @var int
*/
public static $coefMax;
/**
* @var int
*/
public static $targetLengthMin;
/**
* @var int
*/
public static $targetLengthMax;
public const PS_SEARCH_MAX_WORDS_IN_TABLE = 100000; /* Max numer of words in ps_search_word, above which $coefs for target length will be everytime equal to 1 */
public const PS_DEFAULT_SEARCH_MAX_WORD_LENGTH = 30; /* default max word length, for when we are not in fuzzy search mode */
public const PS_SEARCH_ORDINATE_MIN = 0.5;
public const PS_SEARCH_ORDINATE_MAX = -1;
public const PS_SEARCH_ABSCISSA_MIN = 0.5;
public const PS_SEARCH_ABSCISSA_MAX = 2;
public const PS_DISTANCE_MAX = 8;
/**
* Method that takes a raw string (sentence) and extract all keywords it can find.
*
* @param string $string Search expression
* @param int $id_lang Language ID
* @param bool $indexation Are we in indexation mode or not
* @param bool|string $iso_code Iso code to use in sanitization function, to perform some tasks
*/
public static function extractKeyWords($string, $id_lang, $indexation = false, $iso_code = false)
{
// If nothing was passed, nothing to do here
if (empty($string)) {
return [];
}
// First, we take the string and clean it as a whole.
// This removes special characters, tags, blacklisted words, hyphens etc.
// So, "Prestashop Tést A-1000" becomes "prestashop test a 1000";
$sanitizedString = Search::sanitize($string, $id_lang, $indexation, $iso_code, false);
// And we separate it by words to get array
// So we get an array ["prestashop", "test", "a", "1000"]
$words = explode(' ', $sanitizedString);
/*
* Now, because we want to maximize the number of keywords we can get from the expression,
* we will also try to handle words with hyphens in them. People can search A 1000, A-1000, A1000, we don't know.
*
* For this reason, if the original expression contained a dash, we will do the process once again,
* but keeping the dashes.
*/
if (strpos($string, '-') !== false) {
// So, one more sanitization with different parameter, one more separation to get array.
// We get an array ["prestashop", "test", "a-1000"]
$sanitizedStringWithHyphens = Search::sanitize($string, $id_lang, $indexation, $iso_code, true);
$wordsWithHyphens = explode(' ', $sanitizedStringWithHyphens);
// And we add all words to our final list, in both dashed and non dashed version.
foreach ($wordsWithHyphens as $word) {
if (strpos($word, '-') === false) {
continue;
}
$words[] = $word;
$word = str_replace('-', '', $word);
if (!empty($word)) {
$words[] = $word;
}
}
}
return array_unique($words);
}
public static function sanitize($string, $id_lang, $indexation = false, $iso_code = false, $keepHyphens = false)
{
// If we get some nonsense or space, just return empty string
if (null === $string || empty($string = trim($string))) {
return '';
}
// The string gets into this method in a raw form of, like "Prestashop Tést A-1000".
// This get rid of all tags, special characters and convert everything to lowercase.
$string = Tools::strtolower(strip_tags($string));
$string = html_entity_decode($string, ENT_NOQUOTES, 'utf-8');
$string = preg_replace('/([' . PREG_CLASS_NUMBERS . ']+)[' . PREG_CLASS_PUNCTUATION . ']+(?=[' . PREG_CLASS_NUMBERS . '])/u', '\1', $string);
$string = preg_replace('/[' . PREG_CLASS_SEARCH_EXCLUDE . ']+/u', ' ', $string);
// Now, our string looks something like "prestashop test a-1000".
if ($indexation) {
if (!$keepHyphens) {
$string = str_replace(['.', '_', '-'], ' ', $string);
} else {
$string = str_replace(['.', '_'], ' ', $string);
}
} else {
/*
* Now, we will search for all aliases, that are contained in our query.
* Our string looks something like "prestashop test a-1000".
* Aliases must be searched for in a raw form, with no special characters.
*/
$query = '
SELECT a.alias, a.search
FROM `' . _DB_PREFIX_ . 'alias` a
WHERE \'' . pSQL($string) . '\' %s AND `active` = 1
';
// Check if we can we use '\b' (faster)
$useICU = (bool) Db::getInstance((bool) _PS_USE_SQL_SLAVE_)->getValue(
'SELECT 1 FROM DUAL WHERE \'icu regex\' REGEXP \'\\\\bregex\''
);
$aliases = Db::getInstance((bool) _PS_USE_SQL_SLAVE_)->executeS(
sprintf(
$query,
$useICU
? 'REGEXP CONCAT(\'\\\\b\', alias, \'\\\\b\')'
: 'REGEXP CONCAT(\'(^|[[:space:]]|[[:<:]])\', alias, \'([[:space:]]|[[:>:]]|$)\')'
)
);
$words = explode(' ', $string);
$processed_words = [];
foreach ($aliases as $alias) {
$processed_words = array_merge($processed_words, explode(' ', $alias['search']));
// delete words that are being replaced with aliases
$words = array_diff($words, explode(' ', $alias['alias']));
}
$string = implode(' ', array_unique(array_merge($processed_words, $words)));
$string = str_replace(['.', '_'], '', $string);
if (!$keepHyphens) {
$string = ltrim(preg_replace('/([^ ])-/', '$1 ', ' ' . $string));
}
}
// Remove all blacklisted words from the search string
$blacklist = Tools::strtolower(Configuration::get('PS_SEARCH_BLACKLIST', $id_lang));
if (!empty($blacklist)) {
$string = preg_replace('/(?<=\s)(' . $blacklist . ')(?=\s)/Su', '', $string);
$string = preg_replace('/^(' . $blacklist . ')(?=\s)/Su', '', $string);
$string = preg_replace('/(?<=\s)(' . $blacklist . ')$/Su', '', $string);
$string = preg_replace('/^(' . $blacklist . ')$/Su', '', $string);
}
// If the language is constituted with symbol and there is no "words", then split every chars.
// This concerns asian languages.
if (in_array($iso_code, ['zh', 'tw', 'ja'])) {
// Cut symbols from letters
$symbols = '';
$letters = '';
foreach (explode(' ', $string) as $mb_word) {
if (strlen(Tools::replaceAccentedChars($mb_word)) == mb_strlen(Tools::replaceAccentedChars($mb_word))) {
$letters .= $mb_word . ' ';
} else {
$symbols .= $mb_word . ' ';
}
}
if (preg_match_all('/./u', $symbols, $matches)) {
$symbols = implode(' ', $matches[0]);
}
$string = $letters . $symbols;
} elseif ($indexation) {
$minWordLen = (int) Configuration::get('PS_SEARCH_MINWORDLEN');
if ($minWordLen > 1) {
--$minWordLen;
$string = preg_replace('/(?<=\s)[^\s]{1,' . $minWordLen . '}(?=\s)/Su', ' ', $string);
$string = preg_replace('/^[^\s]{1,' . $minWordLen . '}(?=\s)/Su', '', $string);
$string = preg_replace('/(?<=\s)[^\s]{1,' . $minWordLen . '}$/Su', '', $string);
$string = preg_replace('/^[^\s]{1,' . $minWordLen . '}$/Su', '', $string);
}
}
// Do some more cleaning to the string and return it
$string = Tools::replaceAccentedChars(trim(preg_replace('/\s+/', ' ', $string)));
return $string;
}
/**
* The holy method to search for products.
*
* @param int $id_lang Language identifier
* @param string $expr Search expression
* @param int $page_number Start from page
* @param int $page_size Number of products to return
* @param $order_by
* @param $order_way
* @param bool $ajax Specifies the return structure of data
* @param bool $use_cookie unused
* @param Context $context Context to use when searching data. Current context will be used if missing.
*
* @return array|bool search results returned in certain structure, depending on $ajax parameter
*/
public static function find(
$id_lang,
$expr,
$page_number = 1,
$page_size = 1,
$order_by = 'position',
$order_way = 'desc',
$ajax = false,
$use_cookie = true,
Context $context = null
) {
if (!$context) {
$context = Context::getContext();
}
// Get database instance to use
$db = Db::getInstance(_PS_USE_SQL_SLAVE_);
// Initialize pagination if nonsense was passed
if (empty($page_number)) {
$page_number = 1;
}
if (empty($page_size)) {
$page_size = 1;
}
// Initialize and validate sorting
if (!Validate::isOrderBy($order_by) || !Validate::isOrderWay($order_way)) {
return false;
}
/*
* Variables related to fuzzy search.
*
* $psFuzzySearch to see if fuzzy search is enabled.
* $fuzzyMaxLoop configuration to limit how many times we try to fuzzy search for each word.
* $fuzzyLoop to track how many times we tried to fuzzy search, so we can break the loop.
*/
$fuzzyLoop = 0;
$fuzzyMaxLoop = (int) Configuration::get('PS_SEARCH_FUZZY_MAX_LOOP');
$psFuzzySearch = (int) Configuration::get('PS_SEARCH_FUZZY');
// Score array to keep track of words we will get weights for (for relevance)
$scoreArray = [];
// Word count to track how many words we got for given expression
$wordCnt = 0;
// Final resulting array with product IDs found
$foundProductIds = [];
// Expressions to search for. If user passes search expressions separated with semicolon, they will be treated separately
$expressions = explode(';', $expr);
// Minimal word length configuration, so we don't search for extremely short words
$psSearchMinWordLength = (int) Configuration::get('PS_SEARCH_MINWORDLEN');
// Ok, now let's go through each expression. It's usually only one.
foreach ($expressions as $expression) {
$productIdsFoundForCurrentExpression = null;
// Get all words from current expression
$words = Search::extractKeyWords($expression, $id_lang, false, $context->language->iso_code);
foreach ($words as $key => $word) {
// Skip all empty words or shorter than our limit
if (empty($word) || strlen($word) < $psSearchMinWordLength) {
unset($words[$key]);
continue;
}
// We prepare a basic part of SQL query that we will be searching
$sql = 'SELECT DISTINCT si.id_product ' .
'FROM ' . _DB_PREFIX_ . 'search_word sw ' .
'LEFT JOIN ' . _DB_PREFIX_ . 'search_index si ON sw.id_word = si.id_word ' .
'LEFT JOIN ' . _DB_PREFIX_ . 'product_shop product_shop ON (product_shop.`id_product` = si.`id_product`) ' .
'WHERE sw.id_lang = ' . (int) $id_lang . ' ' .
'AND sw.id_shop = ' . $context->shop->id . ' ' .
'AND product_shop.`active` = 1 ' .
'AND product_shop.`visibility` IN ("both", "search") ' .
'AND product_shop.indexed = 1 ' .
'AND sw.word LIKE ';
/*
* Now, find all products from the index, that have this keyword.
* We start with the word itself wrapped in %%, coming from getSearchParamFromWord.
*
* If we don't find anything, we will leverage levenshtein algorithm to find a closest keyword
* via findClosestWeightestWord method.
*
* We will keep searching with different expressions, until we find something
* or we exceed our fuzzy search limit.
*/
$sql_param_search = self::getSearchParamFromWord($word);
while (!($result = $db->executeS($sql . "'" . $sql_param_search . "';", true, false))) {
if (!$psFuzzySearch
|| $fuzzyLoop++ > $fuzzyMaxLoop
|| !($sql_param_search = static::findClosestWeightestWord($context, $word))
) {
break;
}
}
// If nothing was found after X retries, skip this keyword
if (!$result) {
unset($words[$key]);
continue;
}
/*
* Extremely important step that someone broke in the past.
* Now if we found something, we need to intersect it with the the previously found products.
* If we search for "Red car", we want to get products that contain "red" AND contain "car".
* Somebody broke it before and it found all things "car" and all things "red".
*/
$productIdsFoundForCurrentWord = array_column($result, 'id_product');
if ($productIdsFoundForCurrentExpression === null) {
$productIdsFoundForCurrentExpression = $productIdsFoundForCurrentWord;
} else {
$productIdsFoundForCurrentExpression = array_intersect($productIdsFoundForCurrentExpression, $productIdsFoundForCurrentWord);
}
// Add the expresion to our score array, so we can later calculate the relevance
$scoreArray[] = 'sw.word LIKE \'' . $sql_param_search . '\'';
}
$wordCnt += count($words);
if ($productIdsFoundForCurrentExpression) {
$foundProductIds = array_merge($foundProductIds, $productIdsFoundForCurrentExpression);
}
}
// Remove all duplicates from product IDs
$foundProductIds = array_unique($foundProductIds);
// If we didn't end up anything now, we can immediately return empty response.
// No sense in calculating weights of nothing.
if (!$wordCnt || !count($foundProductIds)) {
return $ajax ? [] : ['total' => 0, 'result' => []];
}
/*
* Now, we have a list of randomly ordered product IDs for our search,
* but we don't know if they are active, should be displayed, nothing.
*/
/*
* This is a subquery that selects weight for each keyword.
* This is used as "relevance" sort order.
*/
$sqlScore = '';
if (!empty($scoreArray) && is_array($scoreArray)) {
$sqlScore = ',( ' .
'SELECT SUM(weight) ' .
'FROM ' . _DB_PREFIX_ . 'search_word sw ' .
'LEFT JOIN ' . _DB_PREFIX_ . 'search_index si ON sw.id_word = si.id_word ' .
'WHERE sw.id_lang = ' . (int) $id_lang . ' ' .
'AND sw.id_shop = ' . $context->shop->id . ' ' .
'AND si.id_product = p.id_product ' .
'AND (' . implode(' OR ', $scoreArray) . ') ' .
') position';
}
$sqlGroups = '';
if (Group::isFeatureActive()) {
$groups = FrontController::getCurrentCustomerGroups();
$sqlGroups = 'AND cg.`id_group` ' . (count($groups) ? 'IN (' . implode(',', $groups) . ')' : '=' . (int) Group::getCurrent()->id);
}
// Select products from the list of IDs that should be displayed and can be returned.
$results = $db->executeS(
'SELECT DISTINCT cp.`id_product` ' .
'FROM `' . _DB_PREFIX_ . 'category_product` cp ' .
(Group::isFeatureActive() ? 'INNER JOIN `' . _DB_PREFIX_ . 'category_group` cg ON cp.`id_category` = cg.`id_category`' : '') . ' ' .
'INNER JOIN `' . _DB_PREFIX_ . 'category` c ON cp.`id_category` = c.`id_category` ' .
'INNER JOIN `' . _DB_PREFIX_ . 'product` p ON cp.`id_product` = p.`id_product` ' .
Shop::addSqlAssociation('product', 'p', false) . ' ' .
'WHERE c.`active` = 1 ' .
'AND product_shop.`active` = 1 ' .
'AND product_shop.`visibility` IN ("both", "search") ' .
'AND product_shop.indexed = 1 ' .
'AND cp.id_product IN (' . implode(',', $foundProductIds) . ')' . $sqlGroups,
true,
false
);
// And again, extract their IDs
$eligibleProducts = [];
foreach ($results as $row) {
$eligibleProducts[] = $row['id_product'];
}
// If we didn't end up anything now, we can immediately return empty response.
// No sense in getting more data for nothing.
if (!count($eligibleProducts)) {
return $ajax ? [] : ['total' => 0, 'result' => []];
}
/*
* Now, we have a list of (also) randomly ordered product IDs for our search,
* but we know that they are real, active products that should be returned.
*/
$product_pool = ' IN (' . implode(',', $eligibleProducts) . ') ';
if ($ajax) {
$sql = 'SELECT DISTINCT p.id_product, pl.name pname, cl.name cname,
cl.link_rewrite crewrite, pl.link_rewrite prewrite ' . $sqlScore . '
FROM ' . _DB_PREFIX_ . 'product p
INNER JOIN `' . _DB_PREFIX_ . 'product_lang` pl ON (
p.`id_product` = pl.`id_product`
AND pl.`id_lang` = ' . (int) $id_lang . Shop::addSqlRestrictionOnLang('pl') . '
)
' . Shop::addSqlAssociation('product', 'p') . '
INNER JOIN `' . _DB_PREFIX_ . 'category_lang` cl ON (
product_shop.`id_category_default` = cl.`id_category`
AND cl.`id_lang` = ' . (int) $id_lang . Shop::addSqlRestrictionOnLang('cl') . '
)
WHERE p.`id_product` ' . $product_pool . '
ORDER BY position DESC LIMIT 10';
return $db->executeS($sql, true, false);
}
if (strpos($order_by, '.') > 0) {
$order_by = explode('.', $order_by);
$order_by = pSQL($order_by[0]) . '.`' . pSQL($order_by[1]) . '`';
}
$alias = '';
if ($order_by == 'price') {
$alias = 'product_shop.';
} elseif (in_array($order_by, ['date_upd', 'date_add'])) {
$alias = 'p.';
}
$sql = 'SELECT p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) as quantity,
pl.`description_short`, pl.`available_now`, pl.`available_later`, pl.`link_rewrite`, pl.`name`,
image_shop.`id_image` id_image, il.`legend`, m.`name` manufacturer_name ' . $sqlScore . ',
DATEDIFF(
p.`date_add`,
DATE_SUB(
"' . date('Y-m-d') . ' 00:00:00",
INTERVAL ' . (Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20) . ' DAY
)
) > 0 new' . (Combination::isFeatureActive() ? ', product_attribute_shop.minimal_quantity AS product_attribute_minimal_quantity, IFNULL(product_attribute_shop.`id_product_attribute`,0) id_product_attribute' : '') . '
FROM ' . _DB_PREFIX_ . 'product p
' . Shop::addSqlAssociation('product', 'p') . '
INNER JOIN `' . _DB_PREFIX_ . 'product_lang` pl ON (
p.`id_product` = pl.`id_product`
AND pl.`id_lang` = ' . (int) $id_lang . Shop::addSqlRestrictionOnLang('pl') . '
)
' . (Combination::isFeatureActive() ? 'LEFT JOIN `' . _DB_PREFIX_ . 'product_attribute_shop` product_attribute_shop FORCE INDEX (id_product)
ON (p.`id_product` = product_attribute_shop.`id_product` AND product_attribute_shop.`default_on` = 1 AND product_attribute_shop.id_shop=' . (int) $context->shop->id . ')' : '') . '
' . Product::sqlStock('p', 0) . '
LEFT JOIN `' . _DB_PREFIX_ . 'manufacturer` m FORCE INDEX (PRIMARY)
ON m.`id_manufacturer` = p.`id_manufacturer`
LEFT JOIN `' . _DB_PREFIX_ . 'image_shop` image_shop FORCE INDEX (id_product)
ON (image_shop.`id_product` = p.`id_product` AND image_shop.cover=1 AND image_shop.id_shop=' . (int) $context->shop->id . ')
LEFT JOIN `' . _DB_PREFIX_ . 'image_lang` il ON (image_shop.`id_image` = il.`id_image` AND il.`id_lang` = ' . (int) $id_lang . ')
WHERE p.`id_product` ' . $product_pool . '
GROUP BY product_shop.id_product';
if ($order_by !== 'price') {
$sql .= ($order_by ? ' ORDER BY ' . $alias . $order_by : '') . ($order_way ? ' ' . $order_way : '') . '
LIMIT ' . (int) (($page_number - 1) * $page_size) . ',' . (int) $page_size;
}
$result = $db->executeS($sql, true, false);
if ($order_by === 'price') {
Tools::orderbyPrice($result, $order_way);
$result = array_slice($result, (int) (($page_number - 1) * $page_size), (int) $page_size);
}
$sql = 'SELECT COUNT(*)
FROM ' . _DB_PREFIX_ . 'product p
' . Shop::addSqlAssociation('product', 'p') . '
INNER JOIN `' . _DB_PREFIX_ . 'product_lang` pl ON (
p.`id_product` = pl.`id_product`
AND pl.`id_lang` = ' . (int) $id_lang . Shop::addSqlRestrictionOnLang('pl') . '
)
LEFT JOIN `' . _DB_PREFIX_ . 'manufacturer` m ON m.`id_manufacturer` = p.`id_manufacturer`
WHERE p.`id_product` ' . $product_pool;
$total = $db->getValue($sql, false);
if (!$result) {
$result_properties = false;
} else {
$result_properties = Product::getProductsProperties((int) $id_lang, $result);
}
return ['total' => $total, 'result' => $result_properties];
}
/**
* @param Db $db
* @param int $id_product
* @param int $id_lang
*
* @return string
*/
public static function getTags($db, $id_product, $id_lang)
{
$tags = '';
$tagsArray = $db->executeS('
SELECT t.name FROM ' . _DB_PREFIX_ . 'product_tag pt
LEFT JOIN ' . _DB_PREFIX_ . 'tag t ON (pt.id_tag = t.id_tag AND t.id_lang = ' . (int) $id_lang . ')
WHERE pt.id_product = ' . (int) $id_product, true, false);
foreach ($tagsArray as $tag) {
$tags .= $tag['name'] . ' ';
}
return $tags;
}
/**
* @param Db $db
* @param int $id_product
* @param int $id_lang
*
* @return string
*/
public static function getAttributes($db, $id_product, $id_lang)
{
if (!Combination::isFeatureActive()) {
return '';
}
$attributes = '';
$attributesArray = $db->executeS('
SELECT al.name FROM ' . _DB_PREFIX_ . 'product_attribute pa
INNER JOIN ' . _DB_PREFIX_ . 'product_attribute_combination pac ON pa.id_product_attribute = pac.id_product_attribute
INNER JOIN ' . _DB_PREFIX_ . 'attribute_lang al ON (pac.id_attribute = al.id_attribute AND al.id_lang = ' . (int) $id_lang . ')
' . Shop::addSqlAssociation('product_attribute', 'pa') . '
WHERE pa.id_product = ' . (int) $id_product, true, false);
foreach ($attributesArray as $attribute) {
$attributes .= $attribute['name'] . ' ';
}
return $attributes;
}
/**
* @param Db $db
* @param int $id_product
* @param int $id_lang
*
* @return string
*/
public static function getFeatures($db, $id_product, $id_lang)
{
if (!Feature::isFeatureActive()) {
return '';
}
$features = '';
$featuresArray = $db->executeS('
SELECT fvl.value FROM ' . _DB_PREFIX_ . 'feature_product fp
LEFT JOIN ' . _DB_PREFIX_ . 'feature_value_lang fvl ON (fp.id_feature_value = fvl.id_feature_value AND fvl.id_lang = ' . (int) $id_lang . ')
WHERE fp.id_product = ' . (int) $id_product, true, false);
foreach ($featuresArray as $feature) {
$features .= $feature['value'] . ' ';
}
return $features;
}
/**
* @param array $weight_array
*
* @return string
*/
protected static function getSQLProductAttributeFields(&$weight_array)
{
$sql = '';
if (is_array($weight_array)) {
foreach ($weight_array as $key => $weight) {
if ((int) $weight) {
switch ($key) {
case 'pa_reference':
$sql .= ', pa.reference AS pa_reference';
break;
case 'pa_supplier_reference':
$sql .= ', pa.supplier_reference AS pa_supplier_reference';
break;
case 'pa_ean13':
$sql .= ', pa.ean13 AS pa_ean13';
break;
case 'pa_isbn':
$sql .= ', pa.isbn AS pa_isbn';
break;
case 'pa_upc':
$sql .= ', pa.upc AS pa_upc';
break;
case 'pa_mpn':
$sql .= ', pa.mpn AS pa_mpn';
break;
}
}
}
}
return $sql;
}
protected static function getProductsToIndex($total_languages, $id_product = false, $limit = 50, $weight_array = [])
{
$ids = null;
if (!$id_product) {
// Limit products for each step but be sure that each attribute is taken into account
$sql = 'SELECT p.id_product FROM ' . _DB_PREFIX_ . 'product p
' . Shop::addSqlAssociation('product', 'p', true, null, true) . '
WHERE product_shop.`indexed` = 0
AND product_shop.`visibility` IN ("both", "search")
AND product_shop.`active` = 1
ORDER BY product_shop.`id_product` ASC
LIMIT ' . (int) $limit;
$res = Db::getInstance()->executeS($sql, false);
while ($row = Db::getInstance()->nextRow($res)) {
$ids[] = $row['id_product'];
}
}
// Now get every attribute in every language
$sql = 'SELECT p.id_product, pl.id_lang, pl.id_shop, l.iso_code';
if (is_array($weight_array)) {
foreach ($weight_array as $key => $weight) {
if ((int) $weight) {
switch ($key) {
case 'pname':
$sql .= ', pl.name pname';
break;
case 'reference':
$sql .= ', p.reference';
break;
case 'supplier_reference':
$sql .= ', p.supplier_reference';
break;
case 'ean13':
$sql .= ', p.ean13';
break;
case 'isbn':
$sql .= ', p.isbn';
break;
case 'upc':
$sql .= ', p.upc';
break;
case 'mpn':
$sql .= ', p.mpn';
break;
case 'description_short':
$sql .= ', pl.description_short';
break;
case 'description':
$sql .= ', pl.description';
break;
case 'cname':
$sql .= ', cl.name cname';
break;
case 'mname':
$sql .= ', m.name mname';
break;
}
}
}
}
$sql .= ' FROM ' . _DB_PREFIX_ . 'product p
LEFT JOIN ' . _DB_PREFIX_ . 'product_lang pl
ON p.id_product = pl.id_product
' . Shop::addSqlAssociation('product', 'p', true, null, true) . '
LEFT JOIN ' . _DB_PREFIX_ . 'category_lang cl
ON (cl.id_category = product_shop.id_category_default AND pl.id_lang = cl.id_lang AND cl.id_shop = product_shop.id_shop)
LEFT JOIN ' . _DB_PREFIX_ . 'manufacturer m
ON m.id_manufacturer = p.id_manufacturer
LEFT JOIN ' . _DB_PREFIX_ . 'lang l
ON l.id_lang = pl.id_lang
WHERE product_shop.indexed = 0
AND product_shop.visibility IN ("both", "search")
' . ($id_product ? 'AND p.id_product = ' . (int) $id_product : '') . '
' . ($ids ? 'AND p.id_product IN (' . implode(',', array_map('intval', $ids)) . ')' : '') . '
AND product_shop.`active` = 1
AND pl.`id_shop` = product_shop.`id_shop`';
return Db::getInstance()->executeS($sql, true, false);
}
/**
* @param Db $db
* @param int $id_product
* @param string $sql_attribute
*
* @return array|null
*/
protected static function getAttributesFields($db, $id_product, $sql_attribute)
{
return $db->executeS('SELECT id_product ' . $sql_attribute . ' FROM ' .
_DB_PREFIX_ . 'product_attribute pa WHERE pa.id_product = ' . (int) $id_product, true, false);
}
/**
* @param array $product_array
* @param array $weight_array
* @param string $key
* @param string $value
* @param int $id_lang
* @param string|bool $iso_code
*/
protected static function fillProductArray(&$product_array, $weight_array, $key, $value, $id_lang, $iso_code)
{
if (strncmp($key, 'id_', 3) && isset($weight_array[$key])) {
$words = Search::extractKeyWords($value, (int) $id_lang, true, $iso_code);
foreach ($words as $word) {
if (!empty($word)) {
$word = Tools::substr($word, 0, self::getMaximumWordLength());
if (!isset($product_array[$word])) {
$product_array[$word] = 0;
}
$product_array[$word] += $weight_array[$key];
}
}
}
}
public static function indexation($full = false, $id_product = false)
{
$db = Db::getInstance();
if ($id_product) {
$full = false;
}
if ($full && Context::getContext()->shop->getContext() == Shop::CONTEXT_SHOP) {
$db->execute('DELETE si, sw FROM `' . _DB_PREFIX_ . 'search_index` si
INNER JOIN `' . _DB_PREFIX_ . 'product` p ON (p.id_product = si.id_product)
' . Shop::addSqlAssociation('product', 'p') . '
INNER JOIN `' . _DB_PREFIX_ . 'search_word` sw ON (sw.id_word = si.id_word AND product_shop.id_shop = sw.id_shop)
WHERE product_shop.`visibility` IN ("both", "search")
AND product_shop.`active` = 1');
$db->execute('UPDATE `' . _DB_PREFIX_ . 'product` p
' . Shop::addSqlAssociation('product', 'p') . '
SET p.`indexed` = 0, product_shop.`indexed` = 0
WHERE product_shop.`visibility` IN ("both", "search")
AND product_shop.`active` = 1
');
} elseif ($full) {
$db->execute('TRUNCATE ' . _DB_PREFIX_ . 'search_index');
$db->execute('TRUNCATE ' . _DB_PREFIX_ . 'search_word');
ObjectModel::updateMultishopTable('Product', ['indexed' => 0]);
} else {
$db->execute('DELETE si FROM `' . _DB_PREFIX_ . 'search_index` si
INNER JOIN `' . _DB_PREFIX_ . 'product` p ON (p.id_product = si.id_product)
' . Shop::addSqlAssociation('product', 'p') . '
WHERE product_shop.`visibility` IN ("both", "search")
AND product_shop.`active` = 1
AND ' . ($id_product ? 'p.`id_product` = ' . (int) $id_product : 'product_shop.`indexed` = 0'));
$db->execute('UPDATE `' . _DB_PREFIX_ . 'product` p
' . Shop::addSqlAssociation('product', 'p') . '
SET p.`indexed` = 0, product_shop.`indexed` = 0
WHERE product_shop.`visibility` IN ("both", "search")
AND product_shop.`active` = 1
AND ' . ($id_product ? 'p.`id_product` = ' . (int) $id_product : 'product_shop.`indexed` = 0'));
}
// Every fields are weighted according to the configuration in the backend
$weight_array = [
'pname' => Configuration::get('PS_SEARCH_WEIGHT_PNAME'),
'reference' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'pa_reference' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'supplier_reference' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'pa_supplier_reference' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'ean13' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'pa_ean13' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'isbn' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'pa_isbn' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'upc' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'pa_upc' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'mpn' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'pa_mpn' => Configuration::get('PS_SEARCH_WEIGHT_REF'),
'description_short' => Configuration::get('PS_SEARCH_WEIGHT_SHORTDESC'),
'description' => Configuration::get('PS_SEARCH_WEIGHT_DESC'),
'cname' => Configuration::get('PS_SEARCH_WEIGHT_CNAME'),
'mname' => Configuration::get('PS_SEARCH_WEIGHT_MNAME'),
'tags' => Configuration::get('PS_SEARCH_WEIGHT_TAG'),
'attributes' => Configuration::get('PS_SEARCH_WEIGHT_ATTRIBUTE'),
'features' => Configuration::get('PS_SEARCH_WEIGHT_FEATURE'),
];
// Those are kind of global variables required to save the processed data in the database every X occurrences, in order to avoid overloading MySQL
$count_words = 0;
$query_array3 = [];
// Retrieve the number of languages
$total_languages = count(Language::getIDs(false));
$sql_attribute = Search::getSQLProductAttributeFields($weight_array);
// Products are processed 50 by 50 in order to avoid overloading MySQL
while (($products = Search::getProductsToIndex($total_languages, $id_product, 50, $weight_array)) && (count($products) > 0)) {
$products_array = [];
// Now each non-indexed product is processed one by one, language by language
foreach ($products as $product) {
if ((int) $weight_array['tags']) {
$product['tags'] = Search::getTags($db, (int) $product['id_product'], (int) $product['id_lang']);
}
if ((int) $weight_array['attributes']) {
$product['attributes'] = Search::getAttributes($db, (int) $product['id_product'], (int) $product['id_lang']);
}
if ((int) $weight_array['features']) {
$product['features'] = Search::getFeatures($db, (int) $product['id_product'], (int) $product['id_lang']);
}
if ($sql_attribute) {
$attribute_fields = Search::getAttributesFields($db, (int) $product['id_product'], $sql_attribute);
if ($attribute_fields) {
$product['attributes_fields'] = $attribute_fields;
}
}
// Data must be cleaned of html, bad characters, spaces and anything, then if the resulting words are long enough, they're added to the array
$product_array = [];
foreach ($product as $key => $value) {
if ($key == 'attributes_fields') {
foreach ($value as $pa_array) {
foreach ($pa_array as $pa_key => $pa_value) {
Search::fillProductArray($product_array, $weight_array, $pa_key, $pa_value, $product['id_lang'], $product['iso_code']);
}
}
} else {
Search::fillProductArray($product_array, $weight_array, $key, $value, $product['id_lang'], $product['iso_code']);
}
}
// If we find words that need to be indexed, they're added to the word table in the database
if (is_array($product_array) && !empty($product_array)) {
$query_array = $query_array2 = [];
foreach ($product_array as $word => $weight) {
if ($weight) {
$query_array[$word] = '(' . (int) $product['id_lang'] . ', ' . (int) $product['id_shop'] . ', \'' . pSQL($word) . '\')';
$query_array2[] = '\'' . pSQL($word) . '\'';
}
}
if (is_array($query_array) && !empty($query_array)) {
// The words are inserted...
$db->execute('
INSERT IGNORE INTO ' . _DB_PREFIX_ . 'search_word (id_lang, id_shop, word)
VALUES ' . implode(',', $query_array), false);
}
$word_ids_by_word = [];
if (is_array($query_array2) && !empty($query_array2)) {
// ...then their IDs are retrieved
$added_words = $db->executeS('
SELECT sw.id_word, sw.word
FROM ' . _DB_PREFIX_ . 'search_word sw
WHERE sw.word IN (' . implode(',', $query_array2) . ')
AND sw.id_lang = ' . (int) $product['id_lang'] . '
AND sw.id_shop = ' . (int) $product['id_shop'], true, false);
foreach ($added_words as $word_id) {
$word_ids_by_word['_' . $word_id['word']] = (int) $word_id['id_word'];
}
}
}
foreach ($product_array as $word => $weight) {
if (!$weight) {
continue;
}
if (!isset($word_ids_by_word['_' . $word])) {
continue;
}
$id_word = $word_ids_by_word['_' . $word];
if (!$id_word) {
continue;
}
$query_array3[] = '(' . (int) $product['id_product'] . ',' .
(int) $id_word . ',' . (int) $weight . ')';
// Force save every 200 words in order to avoid overloading MySQL
if (++$count_words % 200 == 0) {
Search::saveIndex($query_array3);
}
}
$products_array[] = (int) $product['id_product'];
}
$products_array = array_unique($products_array);
Search::setProductsAsIndexed($products_array);
// One last save is done at the end in order to save what's left
Search::saveIndex($query_array3);
}
return true;
}
public static function removeProductsSearchIndex($products)
{
if (is_array($products) && !empty($products)) {
Db::getInstance()->execute('DELETE FROM ' . _DB_PREFIX_ . 'search_index WHERE id_product IN (' . implode(',', array_unique(array_map('intval', $products))) . ')');
ObjectModel::updateMultishopTable('Product', ['indexed' => 0], 'a.id_product IN (' . implode(',', array_map('intval', $products)) . ')');
}
}
protected static function setProductsAsIndexed(&$products)
{
if (is_array($products) && !empty($products)) {
ObjectModel::updateMultishopTable('Product', ['indexed' => 1], 'a.id_product IN (' . implode(',', array_map('intval', $products)) . ')');
}
}
/** $queryArray3 is automatically emptied in order to be reused immediately */
protected static function saveIndex(&$queryArray3)
{
if (is_array($queryArray3) && !empty($queryArray3)) {
$query = 'INSERT INTO ' . _DB_PREFIX_ . 'search_index (id_product, id_word, weight)
VALUES ' . implode(',', $queryArray3) . '
ON DUPLICATE KEY UPDATE weight = weight + VALUES(weight)';
Db::getInstance()->execute($query, false);
}
$queryArray3 = [];
}
public static function searchTag(
$id_lang,
$tag,
$count = false,
$pageNumber = 0,
$pageSize = 10,
$orderBy = false,
$orderWay = false,
$useCookie = true,
Context $context = null
) {
if (!$context) {
$context = Context::getContext();
}
// Only use cookie if id_customer is not present
if ($useCookie) {
$id_customer = (int) $context->customer->id;
} else {
$id_customer = 0;
}
if (!is_numeric($pageNumber) || !is_numeric($pageSize) || !Validate::isBool($count) || !Validate::isValidSearch($tag)
|| $orderBy && !$orderWay || ($orderBy && !Validate::isOrderBy($orderBy)) || ($orderWay && !Validate::isOrderBy($orderWay))
) {
return false;
}
if ($pageNumber < 1) {
$pageNumber = 1;
}
if ($pageSize < 1) {
$pageSize = 10;
}
$id = Context::getContext()->shop->id;
$id_shop = $id ? $id : Configuration::get('PS_SHOP_DEFAULT');
$sqlGroups = '';
if (Group::isFeatureActive()) {
$groups = FrontController::getCurrentCustomerGroups();
$sqlGroups = 'AND cg.`id_group` ' . (count($groups) ? 'IN (' . implode(',', $groups) . ')' : '=' . (int) Group::getCurrent()->id);
}
if ($count) {
return (int) Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue(
'SELECT COUNT(DISTINCT pt.`id_product`) nb ' .
'FROM ' .
'`' . _DB_PREFIX_ . 'tag` t ' .
'STRAIGHT_JOIN `' . _DB_PREFIX_ . 'product_tag` pt ON (pt.`id_tag` = t.`id_tag` AND t.`id_lang` = ' . (int) $id_lang . ') ' .
'STRAIGHT_JOIN `' . _DB_PREFIX_ . 'product` p ON (p.`id_product` = pt.`id_product`) ' .
Shop::addSqlAssociation('product', 'p') . ' ' .
'LEFT JOIN `' . _DB_PREFIX_ . 'category_product` cp ON (cp.`id_product` = p.`id_product`) ' .
'LEFT JOIN `' . _DB_PREFIX_ . 'category_shop` cs ON (cp.`id_category` = cs.`id_category` AND cs.`id_shop` = ' . (int) $id_shop . ') ' .
(Group::isFeatureActive() ? 'LEFT JOIN `' . _DB_PREFIX_ . 'category_group` cg ON (cg.`id_category` = cp.`id_category`)' : '') . ' ' .
'WHERE product_shop.`active` = 1 ' .
'AND product_shop.`visibility` IN (\'both\', \'search\') ' .
'AND cs.`id_shop` = ' . (int) Context::getContext()->shop->id . ' ' .
$sqlGroups . ' ' .
'AND t.`name` LIKE \'%' . pSQL($tag) . '%\''
);
}
$sql = 'SELECT DISTINCT p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) as quantity, pl.`description_short`, pl.`link_rewrite`, pl.`name`, pl.`available_now`, pl.`available_later`,
MAX(image_shop.`id_image`) id_image, il.`legend`, m.`name` manufacturer_name, 1 position,
DATEDIFF(
p.`date_add`,
DATE_SUB(
"' . date('Y-m-d') . ' 00:00:00",
INTERVAL ' . (Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20) . ' DAY
)
) > 0 new
FROM
`' . _DB_PREFIX_ . 'tag` t
STRAIGHT_JOIN `' . _DB_PREFIX_ . 'product_tag` pt ON (pt.`id_tag` = t.`id_tag` AND t.`id_lang` = ' . (int) $id_lang . ')
STRAIGHT_JOIN `' . _DB_PREFIX_ . 'product` p ON (p.`id_product` = pt.`id_product`)
INNER JOIN `' . _DB_PREFIX_ . 'product_lang` pl ON (
p.`id_product` = pl.`id_product`
AND pl.`id_lang` = ' . (int) $id_lang . Shop::addSqlRestrictionOnLang('pl') . '
)
' . Shop::addSqlAssociation('product', 'p', false) . '
LEFT JOIN `' . _DB_PREFIX_ . 'product_attribute_shop` product_attribute_shop
ON (p.`id_product` = product_attribute_shop.`id_product` AND product_attribute_shop.`default_on` = 1 AND product_attribute_shop.id_shop=' . (int) $context->shop->id . ')
LEFT JOIN `' . _DB_PREFIX_ . 'image_shop` image_shop
ON (image_shop.`id_product` = p.`id_product` AND image_shop.cover=1 AND image_shop.id_shop=' . (int) $context->shop->id . ')
LEFT JOIN `' . _DB_PREFIX_ . 'image_lang` il ON (image_shop.`id_image` = il.`id_image` AND il.`id_lang` = ' . (int) $id_lang . ')
LEFT JOIN `' . _DB_PREFIX_ . 'manufacturer` m ON (m.`id_manufacturer` = p.`id_manufacturer`)
LEFT JOIN `' . _DB_PREFIX_ . 'category_product` cp ON (cp.`id_product` = p.`id_product`)
' . (Group::isFeatureActive() ? 'LEFT JOIN `' . _DB_PREFIX_ . 'category_group` cg ON (cg.`id_category` = cp.`id_category`)' : '') . '
LEFT JOIN `' . _DB_PREFIX_ . 'category_shop` cs ON (cp.`id_category` = cs.`id_category` AND cs.`id_shop` = ' . (int) $id_shop . ')
' . Product::sqlStock('p', 0) . '
WHERE product_shop.`active` = 1
AND product_shop.`visibility` IN (\'both\', \'search\')
AND cs.`id_shop` = ' . (int) Context::getContext()->shop->id . '
' . $sqlGroups . '
AND t.`name` LIKE \'%' . pSQL($tag) . '%\'
GROUP BY product_shop.id_product
ORDER BY position DESC' . ($orderBy ? ', ' . $orderBy : '') . ($orderWay ? ' ' . $orderWay : '') . '
LIMIT ' . (int) (($pageNumber - 1) * $pageSize) . ',' . (int) $pageSize;
if (!$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql, true, false)) {
return false;
}
return Product::getProductsProperties((int) $id_lang, $result);
}
/**
* Prepare a word for the SQL requests (Remove hyphen if present, add percentage signs).
*
* @internal Public for tests
*
* @param string $word
*
* @return string
*/
public static function getSearchParamFromWord($word)
{
$word = str_replace(['%', '_'], ['\\%', '\\_'], $word);
$start_search = Configuration::get('PS_SEARCH_START') ? '%' : '';
$end_search = Configuration::get('PS_SEARCH_END') ? '' : '%';
$psSearchMawWordLenth = self::getMaximumWordLength();
$start_pos = (int) ($word[0] == '-');
return $start_search . pSQL(Tools::substr($word, $start_pos, $psSearchMawWordLenth)) . $end_search;
}
/**
* @param Context $context
* @param string $queryString
*
* @return string
*
* @throws PrestaShopDatabaseException
*/
public static function findClosestWeightestWord($context, $queryString)
{
$distance = []; // cache levenshtein distance
$searchMinWordLength = (int) Configuration::get('PS_SEARCH_MINWORDLEN');
$psSearchMaxWordLength = (int) Configuration::get('PS_SEARCH_MAX_WORD_LENGTH');
if (!self::$totalWordInSearchWordTable) {
$sql = 'SELECT count(*) FROM `' . _DB_PREFIX_ . 'search_word`;';
self::$totalWordInSearchWordTable = (int) Db::getInstance()->getValue($sql);
}
/* If the ps_search_word table size is superior to PS_SEARCH_MAX_WORDS_IN_TABLE, that mean that the DB is really huge.
* To reduce the server load, we are looking only for words with same length that the query word.
* If we use the auto-acale && self::$totalWordInSearchWordTable > PS_SEARCH_MAX_WORDS_IN_TABLE,
* we will get $coefMax < 1 following by $coefMax < $coefMin, this is a non-sense.
* So, we test it before and assign a right value for both target lengths */
if (self::$totalWordInSearchWordTable > static::PS_SEARCH_MAX_WORDS_IN_TABLE) {
self::$targetLengthMin = self::$targetLengthMax = (int) (strlen($queryString));
} else {
/* This part of code can be considered like an auto-scale mechanism.
* The table ps_search_word can grow huge, and exceed server resources.
* So, we need a mechanism to reduce the server load depending the DB size.
* Here will be calculated ranges of target length depending the ps_search_word table size.
* If ps_search_word table size tends to PS_SEARCH_MAX_WORDS_IN_TABLE, $coefMax and $coefMin will tend to 1.
* If ps_search_word table size tends to 0, $coefMax will tends to 2, and $coefMin will tends to 0.5.
* Computations are made with the linear function y = ax + b.
* With actual constant values, we have :
* Linear function for $coefMin : a = 0.5 / 100000, b = 0.5
* Linear function for $coefMax : a = -1 / 100000, b = 2
* Results :
* 500 words id DB give coefMin : 0.5025, coefMax : 1.995
* 20,000 words id DB give $coefMin : 0.6, $coefMax : 1.8
* 40,000 words id DB give $coefMin : 0.7, $coefMax : 1.6
* 60,000 words id DB give $coefMin : 0.8, $coefMax : 1.4
* 80,000 words id DB give $coefMin : 0.9, $coefMax : 1.2
* 100,000 words id DB give $coefMin : 1, $coefMax : 1*/
if (!self::$coefMin) {
//self::$coefMin && self::$coefMax depend on the number of total words in ps_search_word table, need to calculate only for every search
self::$coefMin = (
(static::PS_SEARCH_ORDINATE_MIN / static::PS_SEARCH_MAX_WORDS_IN_TABLE)
* self::$totalWordInSearchWordTable
) + static::PS_SEARCH_ABSCISSA_MIN; //y = ax + b
self::$coefMax = (
(static::PS_SEARCH_ORDINATE_MAX / static::PS_SEARCH_MAX_WORDS_IN_TABLE)
* self::$totalWordInSearchWordTable
) + static::PS_SEARCH_ABSCISSA_MAX; //y = ax + b
}
// self::$targetLengthMin depends of the length of the $queryString, need to calculate for every word
self::$targetLengthMin = (int) (strlen($queryString) * self::$coefMin);
self::$targetLengthMax = (int) (strlen($queryString) * self::$coefMax);
if (self::$targetLengthMin < $searchMinWordLength) {
self::$targetLengthMin = $searchMinWordLength;
}
if (self::$targetLengthMax > $psSearchMaxWordLength) {
self::$targetLengthMax = $psSearchMaxWordLength;
}
// Could happen when $queryString length * $coefMin > $psSearchMaxWordLength
if (self::$targetLengthMax < self::$targetLengthMin) {
return '';
}
}
$sql = 'SELECT null as levenshtein, -SUM(weight) as weight, sw.`word` ' .
'FROM `' . _DB_PREFIX_ . 'search_word` sw ' .
'LEFT JOIN `' . _DB_PREFIX_ . 'search_index` si ON (sw.`id_word` = si.`id_word`) ' .
'LEFT JOIN `' . _DB_PREFIX_ . 'product_shop` product_shop ON (product_shop.`id_product` = si.`id_product`) ' .
'WHERE sw.`id_lang` = ' . (int) $context->language->id . ' ' .
'AND sw.`id_shop` = ' . (int) $context->shop->id . ' ' .
'AND LENGTH(sw.`word`) >= ' . self::$targetLengthMin . ' ' .
'AND LENGTH(sw.`word`) <= ' . self::$targetLengthMax . ' ' .
'AND product_shop.`active` = 1 ' .
'AND product_shop.`visibility` IN ("both", "search") ' .
'AND product_shop.indexed = 1 ' .
'GROUP BY sw.`word`;';
$selectedWords = Db::getInstance()->executeS($sql);
$closestWord = array_reduce(
$selectedWords,
static function ($a, $b) use ($queryString) {
/* The 'null as levenshtein' column is used as cache
* if $b win, next loop, it will be $a. So, no need to assign $a['levenshtein']*/
$b['levenshtein'] = levenshtein($b['word'], $queryString);
/* The array comparison will follow the order keys as follow: levenshtein, weight, word
* So, were looking for the smaller levenshtein distance, then the smallest weight (-SUM(weight))*/
return $a < $b ? $a : $b;
},
['word' => 'initial', 'weight' => 0, 'levenshtein' => 100]
);
return $closestWord['levenshtein'] < static::PS_DISTANCE_MAX ? $closestWord['word'] : '';
}
/**
* Get the maximum word length value from configuration or default value
* depending on the activation of the fuzzy search mechanism
*
* @return int|string
*/
public static function getMaximumWordLength()
{
if (Configuration::get('PS_SEARCH_FUZZY')) {
return Configuration::get('PS_SEARCH_MAX_WORD_LENGTH');
}
return self::PS_DEFAULT_SEARCH_MAX_WORD_LENGTH;
}
}