original_string: public function validateAction()
      {
          // Check for a valid POST request
          if (!$this->getRequest()->isPost()) {
              // Return a "405 Method Not Allowed" response
              $this->getResponse()->setHttpResponseCode(405);
              return;
          }
  
          $data = $this->getRequest()->getPost();
  
          // Check that all of the required fields are present
          if (empty($data) || !isset($data['country_id'], $data['region_id'], $data['street'], $data['city'], $data['postcode'])) {
              // Return a "400 Bad Request" response
              $this->getResponse()->setHttpResponseCode(400);
              return;
          }
  
          $country = Mage::getModel('directory/country')->load($data['country_id'])->getName();
          $region = Mage::getModel('directory/region')->load($data['region_id'])->getCode();
  
          $result = Mage::helper('australia/address')->validate(
              $data['street'],
              $region,
              $data['city'],
              $data['postcode'],
              $country
          );
  
          $this->getResponse()->setHeader('Content-type', 'application/json');
          $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));
      }
code: public function validateAction()
      {
          // Check for a valid POST request
          if (!$this->getRequest()->isPost()) {
              // Return a "405 Method Not Allowed" response
              $this->getResponse()->setHttpResponseCode(405);
              return;
          }
  
          $data = $this->getRequest()->getPost();
  
          // Check that all of the required fields are present
          if (empty($data) || !isset($data['country_id'], $data['region_id'], $data['street'], $data['city'], $data['postcode'])) {
              // Return a "400 Bad Request" response
              $this->getResponse()->setHttpResponseCode(400);
              return;
          }
  
          $country = Mage::getModel('directory/country')->load($data['country_id'])->getName();
          $region = Mage::getModel('directory/region')->load($data['region_id'])->getCode();
  
          $result = Mage::helper('australia/address')->validate(
              $data['street'],
              $region,
              $data['city'],
              $data['postcode'],
              $country
          );
  
          $this->getResponse()->setHeader('Content-type', 'application/json');
          $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));
      }
code_tokens: public function validateAction ( ) { // Check for a valid POST request if ( ! $ this -> getRequest ( ) -> isPost ( ) ) { // Return a "405 Method Not Allowed" response $ this -> getResponse ( ) -> setHttpResponseCode ( 405 ) ; return ; } $ data = $ this -> getRequest ( ) -> getPost ( ) ; // Check that all of the required fields are present if ( empty ( $ data ) || ! isset ( $ data [ 'country_id' ] , $ data [ 'region_id' ] , $ data [ 'street' ] , $ data [ 'city' ] , $ data [ 'postcode' ] ) ) { // Return a "400 Bad Request" response $ this -> getResponse ( ) -> setHttpResponseCode ( 400 ) ; return ; } $ country = Mage :: getModel ( 'directory/country' ) -> load ( $ data [ 'country_id' ] ) -> getName ( ) ; $ region = Mage :: getModel ( 'directory/region' ) -> load ( $ data [ 'region_id' ] ) -> getCode ( ) ; $ result = Mage :: helper ( 'australia/address' ) -> validate ( $ data [ 'street' ] , $ region , $ data [ 'city' ] , $ data [ 'postcode' ] , $ country ) ; $ this -> getResponse ( ) -> setHeader ( 'Content-type' , 'application/json' ) ; $ this -> getResponse ( ) -> setBody ( Mage :: helper ( 'core' ) -> jsonEncode ( $ result ) ) ; }
docstring: Sends a request to the address validation backend to validate the address
  the customer provided on the checkout page.
docstring_tokens: Sends a request to the address validation backend to validate the address the customer provided on the checkout page .