SlugHelper.php
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<?php
namespace artbox\core\helpers;
use artbox\core\models\Alias;
use artbox\core\models\Language;
use yii\helpers\Inflector;
/**
* Class SlugHelper
* Class to work with slugs, transliteration and aliases
*/
class SlugHelper
{
/**
* SlugHelper constructor. Private in order to restict instance creation.
*/
private function __construct()
{
}
/**
* Custom trasliteration rules.
*
* @param string $string string to translit
* @param string $setting all, letter, symbol possible variants
*
* @return string
*/
static function translit(string $string, string $setting = 'all'): string
{
$letter = [
'а' => 'a',
'б' => 'b',
'в' => 'v',
'г' => 'g',
'д' => 'd',
'е' => 'e',
'ё' => 'e',
'ж' => 'zh',
'з' => 'z',
'и' => 'i',
'й' => 'y',
'к' => 'k',
'л' => 'l',
'м' => 'm',
'н' => 'n',
'о' => 'o',
'п' => 'p',
'р' => 'r',
'с' => 's',
'т' => 't',
'у' => 'u',
'ф' => 'f',
'х' => 'h',
'ц' => 'c',
'ч' => 'ch',
'ш' => 'sh',
'щ' => 'sch',
'ь' => "",
'ы' => 'y',
'ъ' => "",
'э' => 'e',
'ю' => 'yu',
'я' => 'ya',
'ї' => 'yi',
'є' => 'ye',
'і' => 'ee',
'А' => 'A',
'Б' => 'B',
'В' => 'V',
'Г' => 'G',
'Д' => 'D',
'Е' => 'E',
'Ё' => 'E',
'Ж' => 'Zh',
'З' => 'Z',
'И' => 'I',
'Й' => 'Y',
'К' => 'K',
'Л' => 'L',
'М' => 'M',
'Н' => 'N',
'О' => 'O',
'П' => 'P',
'Р' => 'R',
'С' => 'S',
'Т' => 'T',
'У' => 'U',
'Ф' => 'F',
'Х' => 'H',
'Ц' => 'C',
'Ч' => 'Ch',
'Ш' => 'Sh',
'Щ' => 'Sch',
'Ь' => "",
'Ы' => 'Y',
'Ъ' => "",
'Э' => 'E',
'Ю' => 'Yu',
'Я' => 'Ya',
'Ї' => 'Yi',
'Є' => 'Ye',
'І' => 'Ee',
];
$symbol = [
' ' => '-',
"'" => '',
'"' => '',
'!' => '',
"@" => '',
'#' => '',
'$' => '',
"%" => '',
'^' => '',
';' => '',
"*" => '',
'(' => '',
')' => '',
"+" => '',
'~' => '',
'.' => '',
',' => '-',
'?' => '',
'…' => '',
'№' => 'N',
'°' => '',
'`' => '',
'|' => '',
'&' => '-and-',
'<' => '',
'>' => '',
];
if ($setting == 'letter') {
$converter = $letter;
} else if ($setting == 'symbol') {
$converter = $symbol;
} else {
$converter = $letter + $symbol;
}
$url = strtr($string, $converter);
$url = str_replace("---", '-', $url);
$url = str_replace("--", '-', $url);
return $url;
}
/**
* Generate slug
*
* @param string $string string to translit
* @param bool $translit whether to use custom translit
* @param string $replacement
* @param bool $lowercase whether to lowercase result
*
* @see Inflector::slug()
* @return string
*/
static function slugify(
string $string,
bool $translit = true,
string $replacement = '-',
bool $lowercase = true
): string {
return Inflector::slug($translit ? SlugHelper::translit($string) : $string, $replacement, $lowercase);
}
/**
* Get unique to alias table slug
*
* @param string $string string to translit
* @param \artbox\core\models\Alias $alias Current alias
* @param int|null $languageId
*
* @return string
*/
static function unify(string $string, Alias $alias = null, int $languageId = null): string
{
$new_string = $string;
$suffix = 2;
while (!self::checkUnique($new_string, $alias, $languageId)) {
$new_string = $string . '-' . $suffix;
$suffix++;
}
return $new_string;
}
/**
* Checks uniqueness of the slug
*
* @param string $string
* @param \artbox\core\models\Alias $alias
* @param int|null $languageId
*
* @return bool
*/
private static function checkUnique(string $string, Alias $alias = null, int $languageId = null): bool
{
if (empty($languageId)) {
$languageId = Language::$current->id;
}
$query = Alias::find()
->where(
[
'value' => $string,
'language_id' => $languageId,
]
);
if (!empty($alias) && !$alias->isNewRecord) {
$query->andWhere(
[
'not',
[ 'id' => $alias->id ],
]
);
}
return !$query->exists();
}
}