/**
  * @return InputFilter
  */
 public function getInputFilter()
 {
     parent::getInputFilter();
     $powerOfAttorneyFilter = new PowerOfAttorneyFilter();
     foreach ($powerOfAttorneyFilter->getInputs() as $name => $input) {
         $this->inputFilter->add($input, $name);
     }
     return $this->inputFilter;
 }
 /**
  * @return \Opg\Common\Filter\BaseInputFilter
  */
 public function getInputFilter()
 {
     if (!$this->inputFilter) {
         $this->inputFilter = parent::getInputFilter();
     }
     return $this->inputFilter;
 }