public function notEquals($value, $isField = FALSE)
 {
     if ($isField === TRUE) {
         return parent::equals($value, $isField);
     }
     return parent::equals(strtoupper($value), $isField);
 }
 public function __construct($property = NULL, $start = NULL, $end = NULL)
 {
     parent::__construct('substring', $property);
     $this->range($start, $end);
 }
 public function __construct($property = NULL)
 {
     parent::__construct('trim', $property);
 }
 public function __construct($property = NULL, $find = NULL, $replace = NULL)
 {
     parent::__construct('replace', $property);
     $this->find = $find;
     $this->replace = $replace;
 }