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<?php |
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namespace Horat1us\Yii\Validators; |
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use Yii; |
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use yii\helpers\StringHelper; |
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use yii\validators\Validator; |
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/** |
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* NumberValidator validates that the attribute value is a number. |
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* |
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* The format of the number must match the regular expression specified in [[integerPattern]] or [[numberPattern]]. |
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* Optionally, you may configure the [[max]] and [[min]] properties to ensure the number |
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* is within certain range. |
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* |
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* Difference from original yii2 number validator is possibility to set min and max as callables |
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* |
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* @author Alexander Letnikow <[email protected]> |
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* @since 2.0 |
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*/ |
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class NumberValidator extends Validator |
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{ |
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/** |
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* @var bool whether the attribute value can only be an integer. Defaults to false. |
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*/ |
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public $integerOnly = false; |
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/** |
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* @var int|float|callable upper limit of the number. Defaults to null, meaning no upper limit. |
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* @see tooBig for the customized message used when the number is too big. |
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*/ |
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public $max; |
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/** |
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* @var int|float|callable lower limit of the number. Defaults to null, meaning no lower limit. |
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* @see tooSmall for the customized message used when the number is too small. |
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*/ |
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public $min; |
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/** |
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* @var string user-defined error message used when the value is bigger than [[max]]. |
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*/ |
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public $tooBig; |
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/** |
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* @var string user-defined error message used when the value is smaller than [[min]]. |
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*/ |
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public $tooSmall; |
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/** |
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* @var string the regular expression for matching integers. |
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*/ |
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public $integerPattern = '/^\s*[+-]?\d+\s*$/'; |
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/** |
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* @var string the regular expression for matching numbers. It defaults to a pattern |
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* that matches floating numbers with optional exponential part (e.g. -1.23e-10). |
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*/ |
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public $numberPattern = '/^\s*[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?\s*$/'; |
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/** |
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* @inheritdoc |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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if ($this->message === null) { |
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$this->message = $this->integerOnly ? Yii::t('yii', '{attribute} must be an integer.') |
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: Yii::t('yii', '{attribute} must be a number.'); |
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} |
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if ($this->min !== null && $this->tooSmall === null) { |
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$this->tooSmall = Yii::t('yii', '{attribute} must be no less than {min}.'); |
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} |
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if ($this->max !== null && $this->tooBig === null) { |
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$this->tooBig = Yii::t('yii', '{attribute} must be no greater than {max}.'); |
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} |
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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, $attribute) |
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{ |
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$value = $model->$attribute; |
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if (is_array($value) || (is_object($value) && !method_exists($value, '__toString'))) { |
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$this->addError($model, $attribute, $this->message); |
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return; |
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} |
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$pattern = $this->integerOnly ? $this->integerPattern : $this->numberPattern; |
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if (!preg_match($pattern, StringHelper::normalizeNumber($value))) { |
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$this->addError($model, $attribute, $this->message); |
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} |
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$min = is_callable($this->min) ? call_user_func($this->min) : $this->min; |
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if ($min !== null && $value < $min) { |
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$this->addError($model, $attribute, $this->tooSmall, ['min' => $min]); |
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} |
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$max = is_callable($this->max) ? call_user_func($this->max) : $this->max; |
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if ($max !== null && $value > $max) { |
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$this->addError($model, $attribute, $this->tooBig, ['max' => $max]); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function validateValue($value) |
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{ |
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if (is_array($value) || is_object($value)) { |
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return [Yii::t('yii', '{attribute} is invalid.'), []]; |
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} |
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$pattern = $this->integerOnly ? $this->integerPattern : $this->numberPattern; |
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if (!preg_match($pattern, StringHelper::normalizeNumber($value))) { |
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return [$this->message, []]; |
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} elseif ( |
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$this->min !== null |
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&& $value < ($min = (is_callable($this->min) ? call_user_func($this->min) : $this->min)) |
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) { |
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return [$this->tooSmall, ['min' => $min]]; |
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} elseif ( |
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$this->max !== null |
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&& $value > ($max = (is_callable($this->max) ? call_user_func($this->max) : $this->max)) |
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) { |
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return [$this->tooBig, ['max' => $max]]; |
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} |
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return null; |
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} |
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} |
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Horat1us /
yii2-base
