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implement semantic search by stopwords settings

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ghost 2023-08-29 15:38:32 +03:00
parent 2c62c94083
commit 5b03f386fe
3 changed files with 28 additions and 13 deletions
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27
src/library/sphinx.php
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@ -11,20 +11,20 @@ class Sphinx {
$this->_sphinx->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);
}
public function searchMagnetsTotal(string $keyword, string $mode = 'default') : int
public function searchMagnetsTotal(string $keyword, string $mode = 'default', array $stopWords = []) : int
{
$query = $this->_sphinx->prepare('SELECT COUNT(*) AS `total` FROM `magnet` WHERE MATCH(?)');
$query->execute(
[
self::_match($keyword, $mode)
self::_match($keyword, $mode, $stopWords)
]
);
return $query->fetch()->total;
}
public function searchMagnets(string $keyword, int $start, int $limit, int $maxMatches, string $mode = 'default')
public function searchMagnets(string $keyword, int $start, int $limit, int $maxMatches, string $mode = 'default', array $stopWords = [])
{
$query = $this->_sphinx->prepare("SELECT *
@ -40,14 +40,14 @@ class Sphinx {
$query->execute(
[
self::_match($keyword, $mode)
self::_match($keyword, $mode, $stopWords)
]
);
return $query->fetchAll();
}
private static function _match(string $keyword, string $mode = 'default') : string
private static function _match(string $keyword, string $mode = 'default', array $stopWords = []) : string
{
$keyword = trim($keyword);
@ -67,15 +67,17 @@ class Sphinx {
$result = [];
foreach ((array) explode(' ', $keyword) as $i => $value)
$keyword = preg_replace('/[\d]/ui', ' ', $keyword);
$keyword = preg_replace('/[\s]+/ui', ' ', $keyword);
$keyword = trim($keyword);
foreach ((array) explode(' ', $keyword) as $value)
{
if (mb_strlen($value) > 5)
{
$result[] = sprintf('@metaTitle "%s" | @dn "%s"', $value, $value);
if ($i > 3)
if (!in_array(mb_strtolower($value), $stopWords))
{
break;
$result[] = sprintf('@metaTitle "%s" | @dn "%s"', $value, $value);
}
}
}
@ -97,7 +99,10 @@ class Sphinx {
foreach ((array) explode(' ', $keyword) as $value)
{
$result[] = sprintf('@"*%s*"', $value);
if (!in_array(mb_strtolower($value), $stopWords))
{
$result[] = sprintf('@"*%s*"', $value);
}
}
return implode(' | ', $result);