/**
* Validates a number value.
*
* @param string $value The value to validate.
*
* @return bool|string Returns boolean TRUE upon successfull validation, and an error message string upon failure.
*/
public function validate(&$value)
{
$required = get::array_def($this->attributes, 'required', false) == 'required';
$integeronly = get::array_def($this->attributes, 'integeronly', false, array(true, false));
$msglbl = get::array_def($this->attributes, 'msglbl', get::array_def($this->attributes, 'name', $this->getId()));
if ($required && (!isset($value) || strlen(trim($value)) < 1)) {
return sprintf('"%s" is a required field.', $msglbl);
}
if (isset($value) && strlen(trim($value)) > 0) {
$value = trim($value);
$valid = $integeronly ? preg_match('/^[+-]?\\d+$/', $value) ? (int) $value : false : is::float($value);
$errorText = $integeronly ? 'integer' : 'number';
$min = get::array_def($this->attributes, 'min', null);
$max = get::array_def($this->attributes, 'max', null);
if ($valid === false) {
return sprintf('"%s" is not a valid %s.', $msglbl, $errorText);
} elseif (isset($min) && $valid < $min) {
return sprintf('"%s" is not allowed to be less than %s.', $msglbl, $min);
} elseif (isset($max) && $valid > $max) {
return sprintf('"%s" is not allowed to be greater than %s.', $msglbl, $max);
}
$value = $valid;
}
return true;
}
