Yii location validator. Sample Location: 41 29

PointValidator.php

<?php
 
/**
 * PointValidator class for Yii.
 * Author: Furkan Tektas github.com/furkantektas
 * Date: 2014/09/05
 * Version: v1.0
 */
class PointValidator extends CValidator
{
	/**
	 * @var boolean whether the attribute value can be null or empty. Defaults to true,
	 * meaning that if the attribute is empty, it is considered valid.
	 */
	public $allowEmpty=true;
	// regex only accepts locations begins with floating number
	// any number of whitespaces and another floating point. 
	// String should be trimmed before matching.
	const VALIDATOR_REGEX = "/^(\-?\d+(\.\d+)?)[[:blank:]]+(\-?\d+(\.\d+)?)$/";
	/**
	 * @inheritDoc
	 */
	public function validateAttribute($object, $attribute)
	{
		if($this->allowEmpty && $this->isEmpty($object->$attribute))
			return;
		if(!preg_match(PointValidator::VALIDATOR_REGEX,trim($object->{$attribute}))) {
			$message = Yii::t('app', 'The point\'s coordinates are not valid!');
			$this->addError($object, $attribute, $message);
		}
	}
}