The Ggapi plugin component simplifies credit card processing using the First Data/Yourpay/Linkpoint Global Gateway API. It supports testing and live configurations, along with local to remote field mapping.
Once configured, all you have to do is feed the component an array of order data (fields used are up to you) and it will map the fields, build the XML string, submit the string, read the response from the gateway, and convert the response back into an array.
Installation
git clone or submodule add to your your app/plugins directory
Requirements
PHP5 with curl support
CakePHP - tested on 1.3 only but should work fine with 1.2
Example usage in your controller
12345678910111213141516171819202122232425262728
<?php// attempt the charge (array $data, boolean $testing)$response=$this->Ggapi->ggProcess($data,true);// update the order table with the responseif($response){if($response['r_approved']=='APPROVED'){// merge the response data with the order data$this->data['Order']=array_merge($this->data['Order'],$response);}else{// card was DECLINED$error=explode(':',$response['r_error']);$this->Session->setFlash('Your credit card was declined. The message was: '.$error[1],'modal',array('class'=>'modal error'));$this->redirect(array('controller'=>'orders','action'=>'checkout'));}}else{// no response from the gateway$this->Session->setFlash('There was a problem connecting to our payment gateway, please try again.','modal',array('class'=>'modal error'));$this->redirect(array('controller'=>'orders','action'=>'checkout'));}