Slug.php
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<?php
namespace artweb\artbox\behaviors;
use yii;
use yii\base\Behavior;
use yii\db\ActiveRecord;
class Slug extends Behavior
{
/**
* @var string
*/
public $inAttribute = 'title';
/**
* @var string
*/
public $outAttribute = 'alias';
/**
* @var bool
*/
public $translit = true;
/**
* @inheritdoc
*/
public function events()
{
return [
ActiveRecord::EVENT_BEFORE_INSERT => 'getSlug',
ActiveRecord::EVENT_BEFORE_UPDATE => 'getSlug',
];
}
/**
* Generate slug
*
* @param yii\base\Event $event
*
* @return void
*/
public function getSlug($event)
{
if(!empty( $this->owner->{$this->inAttribute} )) {
if(empty( $this->owner->{$this->outAttribute} )) {
$this->owner->{$this->outAttribute} = $this->generateSlug($this->owner->{$this->inAttribute});
} else {
$this->owner->{$this->outAttribute} = $this->generateSlug($this->owner->{$this->outAttribute});
}
}
}
/**
* @param string $slug
*
* @return string
*/
private function generateSlug($slug)
{
$slug = $this->slugify($slug);
if($this->checkUniqueSlug($slug)) {
return $slug;
} else {
for($suffix = 2; !$this->checkUniqueSlug($new_slug = $slug . '-' . $suffix); $suffix++) {
}
return $new_slug;
}
}
/**
* @param string $slug
*
* @return string
*/
private function slugify($slug)
{
if($this->translit) {
return yii\helpers\Inflector::slug( $this->translit( $slug ), '-', true );
} else {
return $this->slug($slug, '-', true);
}
}
/**
* @param string $string
* @param string $replacement
* @param bool $lowercase
*
* @return string
*/
private function slug($string, $replacement = '-', $lowercase = true)
{
$string = preg_replace('/[^\p{L}\p{Nd}]+/u', $replacement, $string);
$string = trim($string, $replacement);
return $lowercase ? strtolower($string) : $string;
}
/**
* Check whether current slug is unique
*
* @param string $slug
*
* @return bool
*/
private function checkUniqueSlug($slug)
{
/**
* @var ActiveRecord $owner
*/
$owner = $this->owner;
$query = $owner->find()
->where([
$this->outAttribute => $slug,
]);
if(!$owner->isNewRecord) {
$pks = $owner->primaryKey();
if(!empty( $pks )) {
$pk_rules = [ 'and' ];
foreach($pks as $pk) {
$pk_rules[] = [ $pk => $owner->$pk ];
}
$query->andWhere([
'not',
$pk_rules,
]);
}
}
return !$query->exists();
}
static function translit ($string, $setting = 'all')
{
$letter = array (
'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'
);
$symbol = array (
' ' => '-', "'" => '', '"' => '',
'!' => '', "@" => '', '#' => '',
'$' => '', "%" => '', '^' => '',
';' => '', "*" => '', '(' => '',
')' => '', "+" => '', '~' => '',
'.' => '', ',' => '-', '?' => '',
'…' => '', '№' => 'N', '°' => '',
'`' => '', '|' => '', '&' => '-and-',
'<' => '', '>' => ''
);
if ($setting == 'all')
{
$converter = $letter + $symbol;
}
else if ($setting == 'letter')
{
$converter = $letter;
}
else if ($setting == 'symbol')
{
$converter = $symbol;
}
$url = strtr ($string, $converter);
$url = str_replace ("---", '-', $url);
$url = str_replace ("--", '-', $url);
return $url;
}
}