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<?php |
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/** |
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* Yii2 Translit Validator |
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* |
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* This file contains validator. |
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* |
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* @author Martin Stolz <[email protected]> |
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*/ |
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namespace herroffizier\yii2tv; |
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use URLify; |
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use yii\validators\Validator; |
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class TranslitValidator extends Validator |
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{ |
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/** |
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* Override default behavior of validator - do not skip empty values. |
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* |
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* @var boolean |
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*/ |
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public $skipOnEmpty = false; |
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/** |
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* Name of attribute which value will be transliterated. |
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* |
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* @var string |
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*/ |
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public $sourceAttribute; |
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/** |
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* Whether to lower case transliterated string. |
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* |
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* @var boolean |
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*/ |
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public $lowercase = true; |
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/** |
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* Whether to prepare transliterated string for URL. |
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* |
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* If set to true, all invalid characters matched by $invalidRegexp will be |
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* replaced with $invalidReplacement string. |
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* |
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* @var boolean |
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*/ |
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public $forUrl = true; |
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/** |
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* Regular expression that matched invalid characters for URL. |
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* |
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* By default matches all non-alphanumeric symbols. |
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* |
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* @var string |
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*/ |
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public $invalidRegexp = '/[^a-z0-9]+/i'; |
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/** |
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* String with which all invalid characters will be replaced. |
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* |
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* @var string |
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*/ |
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public $invalidReplacement = '-'; |
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/** |
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* Trim invalid characters at beginning and at end of given string. |
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* |
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* @var boolean |
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*/ |
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public $trimInvalid = false; |
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/** |
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* Cached escaped invalid replacement. |
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* |
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* @var string |
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*/ |
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protected $escapedInvalidReplacement = null; |
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/** |
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* Escape invalid replacement string. |
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* |
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* @return string |
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*/ |
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protected function getEscapedInvalidReplacement() |
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{ |
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if ($this->escapedInvalidReplacement === null) { |
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$this->escapedInvalidReplacement = addcslashes($this->invalidReplacement, '[]().?-*^$/:<>'); |
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} |
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return $this->escapedInvalidReplacement; |
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} |
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/** |
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* Prepare string for URL. |
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* |
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* @param string $value |
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* @return string |
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*/ |
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protected function prepareForUrl($value) |
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{ |
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$escapedInvalidReplacement = $this->getEscapedInvalidReplacement(); |
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// First, replace all invalid characters with replacement string. |
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$value = |
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preg_replace( |
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$this->invalidRegexp, |
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$this->invalidReplacement, |
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$value |
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); |
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// Second, replace all possible repeats of replacement string with single one. |
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$value = |
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preg_replace( |
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'/('.$escapedInvalidReplacement.'){2,}/', |
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$this->invalidReplacement, |
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$value |
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); |
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if ($this->trimInvalid) { |
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$value = |
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preg_replace( |
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'/(^'.$escapedInvalidReplacement.'|'.$escapedInvalidReplacement.'$)/', |
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'', |
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$value |
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); |
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} |
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return $value; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function validateAttribute($model, $attribute) |
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{ |
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// Do not overwrite non-empty values and do not parse empty values. |
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if ($model->$attribute || !$model->{$this->sourceAttribute}) { |
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return; |
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} |
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$value = URLify::downcode($model->{$this->sourceAttribute}); |
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if ($this->lowercase) { |
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$value = strtolower($value); |
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} |
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if ($this->forUrl) { |
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$value = $this->prepareForUrl($value); |
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} |
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$model->$attribute = $value; |
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} |
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} |
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herroffizier /
yii2-translit-validator
