79 lines
2.1 KiB
PHP
79 lines
2.1 KiB
PHP
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<?php
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namespace common\behaviors;
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use dosamigos\transliterator\TransliteratorHelper;
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use yii;
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use yii\base\Behavior;
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use yii\db\ActiveRecord;
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use yii\helpers\Inflector;
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class Slug extends Behavior
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{
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public $in_attribute = 'name';
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public $out_attribute = 'slug';
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public $translit = true;
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public function events()
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{
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return [
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ActiveRecord::EVENT_BEFORE_VALIDATE => 'getSlug'
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];
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}
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public function getSlug($event)
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{
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if (empty($this->owner->{$this->out_attribute})) {
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$this->owner->{$this->out_attribute} = $this->generateSlug($this->owner->{$this->in_attribute});
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} else {
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$this->owner->{$this->out_attribute} = $this->generateSlug($this->owner->{$this->out_attribute});
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}
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}
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private function generateSlug($slug)
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{
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$slug = $this->slugify($slug);
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if ($this->checkUniqueSlug($slug)) {
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return $slug;
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} else {
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for ($suffix = 2; !$this->checkUniqueSlug($new_slug = $slug . '-' . $suffix); $suffix++) {
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}
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return $new_slug;
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}
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}
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private function slugify($slug)
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{
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if ($this->translit) {
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return Inflector::slug(TransliteratorHelper::process($slug), '-', true);
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} else {
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return $this->slug($slug, '-', true);
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}
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}
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private function slug($string, $replacement = '-', $lowercase = true)
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{
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$string = preg_replace('/[^\p{L}\p{Nd}]+/u', $replacement, $string);
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$string = trim($string, $replacement);
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return $lowercase ? strtolower($string) : $string;
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}
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private function checkUniqueSlug($slug)
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{
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$pk = $this->owner->primaryKey();
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$pk = $pk[0];
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$condition = $this->out_attribute . ' = :out_attribute';
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$params = [':out_attribute' => $slug];
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if (!$this->owner->isNewRecord) {
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$condition .= ' and ' . $pk . ' != :pk';
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$params[':pk'] = $this->owner->{$pk};
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}
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return !$this->owner->find()
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->where($condition, $params)
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->one();
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}
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}
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