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<?php
/**
* TValueTypeValidator class.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005 PradoSoft
* @license http://www.pradosoft.com/license/
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
*/
/**
* Using TBaseValidator class
*/
Prado::using('System.Web.UI.WebControls.TBaseValidator');
/**
* TValueTypeValidator class
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
* @since 3.0
*/
class TValueTypeValidator extends TBaseValidator
{
/**
* @return string the data type that the values being compared are converted to before the comparison is made. Defaults to String.
*/
public function getValueType()
{
return $this->getViewState('ValueType','String');
}
/**
* Sets the data type (Integer, Double, Currency, Date, String) that the values being compared are converted to before the comparison is made.
* @param string the data type
*/
public function setValueType($value)
{
$this->setViewState('ValueType',TPropertyValue::ensureEnum($value,'Integer','Double','Date','Currency','String'),'String');
}
/**
* Sets the date format for a date validation
* @param string the date format value
*/
public function setDateFormat($value)
{
$this->setViewState('DateFormat', $value, '');
}
/**
* @return string the date validation date format if any
*/
public function getDateFormat()
{
return $this->getViewState('DateFormat', '');
}
/**
* Determine if the given value is of a particular type using RegExp.
* @param string value to check
* @return boolean true if value fits the type expression.
*/
protected function evaluateDataTypeCheck($value)
{
switch($this->getValueType())
{
case 'Integer':
return preg_match('/^[-+]?[0-9]+$/',trim($value));
case 'Float':
case 'Double':
return preg_match('/^[-+]?([0-9]*\.)?[0-9]+([eE][-+]?[0-9]+)?$/',trim($value));
case 'Currency':
return preg_match('/[-+]?([0-9]*\.)?[0-9]+([eE][-+]?[0-9]+)?$/',trim($value));
case 'Date':
$dateFormat = $this->getDateFormat();
if(strlen($dateFormat))
{
$formatter = Prado::createComponent('System.Data.TSimpleDateFormatter',$dateFormat);
return $formatter->isValidDate($value);
}
else
return strtotime($value) > 0;
}
return true;
}
/**
* This method overrides the parent's implementation.
* The validation succeeds if the input data is of valid type.
* The validation always succeeds if ControlToValidate is not specified
* or the input data is empty.
* @return boolean whether the validation succeeds
*/
public function evaluateIsValid()
{
if(($value=$this->getValidationValue($this->getValidationTarget()))==='')
return true;
return $this->evaluateDataTypeCheck($value);
}
}
?>
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