Yii 1.1 number validator that allows comma before decimals.

CsNumberValidator.php

<?php

/**
 * CsNumberValidator class file.
 * @copyright 2014 Paweł Bizley Brzozowski
 */

/**
 * CsNumberValidator is the same as CNumberValidator but allows comma instead of dot before decimals.
 * So now 123,45 is valid number.
 */
class CsNumberValidator extends CNumberValidator
{
    /**
     * @var boolean whether the attribute value comma should be replaced with dot. Defaults to true.
     */
    public $replaceComma = true;

    /**
     * Validates the attribute of the object.
     * If there is any error, the error message is added to the object.
     * @see CNumberValidator::validateAttribute
     * @param CModel $object the object being validated
     * @param string $attribute the attribute being validated
     */
    protected function validateAttribute($object, $attribute)
    {
        $value = $object->$attribute;
        
        if (is_string($value)) {
            $value = trim($value);
            $object->$attribute = $value;
            $value = str_replace(',', '.', $value);
        }
        
        if ($this->allowEmpty && $this->isEmpty($value))
            return;
        if (!is_numeric($value)) {
            // https://github.com/yiisoft/yii/issues/1955
            // https://github.com/yiisoft/yii/issues/1669
            $message = $this->message !== null ? $this->message : Yii::t('yii', '{attribute} must be a number.');
            $this->addError($object, $attribute, $message);
            return;
        }
        
        if ($this->replaceComma) {
            $object->$attribute = $value;
        }
        
        if ($this->integerOnly) {
            if (!preg_match($this->integerPattern, "$value")) {
                $message = $this->message !== null ? $this->message : Yii::t('yii', '{attribute} must be an integer.');
                $this->addError($object, $attribute, $message);
            }
        }
        else {
            if (!preg_match($this->numberPattern, "$value")) {
                $message = $this->message !== null ? $this->message : Yii::t('yii', '{attribute} must be a number.');
                $this->addError($object, $attribute, $message);
            }
        }
        if ($this->min !== null && $value < $this->min) {
            $message = $this->tooSmall !== null ? $this->tooSmall : Yii::t('yii', '{attribute} is too small (minimum is {min}).');
            $this->addError($object, $attribute, $message, array('{min}' => $this->min));
        }
        if ($this->max !== null && $value > $this->max) {
            $message = $this->tooBig !== null ? $this->tooBig : Yii::t('yii', '{attribute} is too big (maximum is {max}).');
            $this->addError($object, $attribute, $message, array('{max}' => $this->max));
        }
    }

    /**
     * Returns the JavaScript needed for performing client-side validation.
     * @see CNumberValidator::clientValidateAttribute
     * @param CModel $object the data object being validated
     * @param string $attribute the name of the attribute to be validated.
     * @return string the client-side validation script.
     * @see CActiveForm::enableClientValidation
     * @since 1.1.7
     */
    public function clientValidateAttribute($object, $attribute)
    {
        $label = $object->getAttributeLabel($attribute);

        if (($message = $this->message) === null)
            $message = $this->integerOnly ? Yii::t('yii', '{attribute} must be an integer.') : Yii::t('yii', '{attribute} must be a number.');
        $message = strtr($message, array(
            '{attribute}' => $label,
        ));

        if (($tooBig = $this->tooBig) === null)
            $tooBig = Yii::t('yii', '{attribute} is too big (maximum is {max}).');
        $tooBig = strtr($tooBig, array(
            '{attribute}' => $label,
            '{max}' => $this->max,
        ));

        if (($tooSmall = $this->tooSmall) === null)
            $tooSmall = Yii::t('yii', '{attribute} is too small (minimum is {min}).');
        $tooSmall = strtr($tooSmall, array(
            '{attribute}' => $label,
            '{min}' => $this->min,
        ));

        $js = "value = value.replace(/,/g, '.');";
        
        $pattern = $this->integerOnly ? $this->integerPattern : $this->numberPattern;
        $js .= "
if(!value.match($pattern)) {
	messages.push(" . CJSON::encode($message) . ");
}
";
        if ($this->min !== null) {
            $js.="
if(value<{$this->min}) {
	messages.push(" . CJSON::encode($tooSmall) . ");
}
";
        }
        if ($this->max !== null) {
            $js.="
if(value>{$this->max}) {
	messages.push(" . CJSON::encode($tooBig) . ");
}
";
        }

        if ($this->allowEmpty) {
            $js = "
if(jQuery.trim(value)!='') {
	$js
}
";
        }

        return $js;
    }

}