function preProcess()
 {
     $this->_id = CRM_Utils_Request::retrieve('id', 'Positive', $this, FALSE);
     require_once 'CRM/Utils/Rule.php';
     if (!CRM_Utils_Rule::positiveInteger($this->_id)) {
         CRM_Core_Error::fatal(ts('We need a valid discount ID for view'));
     }
     $this->assign('id', $this->_id);
     $defaults = array();
     $params = array('id' => $this->_id);
     require_once 'CRM/CiviDiscount/BAO/Item.php';
     CRM_CiviDiscount_BAO_Item::retrieve($params, $defaults);
     $this->assign('code_id', $defaults['id']);
     $this->assign('code', $defaults['code']);
     $this->assign('description', $defaults['description']);
     $this->assign('amount', $defaults['amount']);
     $this->assign('amount_type', $defaults['amount_type']);
     $this->assign('count_use', $defaults['count_use']);
     $this->assign('count_max', $defaults['count_max']);
     $this->assign('is_active', $defaults['is_active']);
     $this->assign('discount_term', $defaults['discount_term']);
     if (array_key_exists('expire_on', $defaults)) {
         $this->assign('expire_on', $defaults['expire_on']);
     }
     if (array_key_exists('active_on', $defaults)) {
         $this->assign('active_on', $defaults['active_on']);
     }
     if (array_key_exists('organization_id', $defaults)) {
         $this->assign('organization_id', $defaults['organization_id']);
         require_once 'CRM/Contact/BAO/Contact.php';
         $orgname = CRM_Contact_BAO_Contact::displayName($defaults['organization_id']);
         $this->assign('organization', $orgname);
     }
     $this->_multiValued = array('autodiscount' => NULL, 'memberships' => NULL, 'events' => NULL, 'pricesets' => NULL, 'pp_types' => NULL);
     foreach ($this->_multiValued as $mv => $info) {
         if (!empty($defaults[$mv])) {
             $v = substr($defaults[$mv], 1, -1);
             $values = explode(CRM_Core_DAO::VALUE_SEPARATOR, $v);
             $defaults[$mv] = array();
             if (!empty($values)) {
                 foreach ($values as $val) {
                     $defaults[$mv][] = $val;
                 }
             }
         }
     }
     require_once 'CRM/CiviDiscount/Utils.php';
     require_once 'CRM/Member/BAO/MembershipType.php';
     if (array_key_exists('pp_types', $defaults)) {
         $pp_types = CRM_CiviDiscount_Utils::getPaymentProcessorTypes();
         $defaults['pp_types'] = CRM_CiviDiscount_Utils::getIdsTitles($defaults['pp_types'], $pp_types);
         $this->assign('pp_types', $defaults['pp_types']);
     }
     if (array_key_exists('events', $defaults)) {
         $events = CRM_CiviDiscount_Utils::getEvents();
         $defaults['events'] = CRM_CiviDiscount_Utils::getIdsTitles($defaults['events'], $events);
         $this->assign('events', $defaults['events']);
     }
     $membershipTypes = CRM_Member_BAO_MembershipType::getMembershipTypes(FALSE);
     if (array_key_exists('memberships', $defaults)) {
         $defaults['memberships'] = CRM_CiviDiscount_Utils::getIdsTitles($defaults['memberships'], $membershipTypes);
         $this->assign('memberships', $defaults['memberships']);
     }
     if (array_key_exists('autodiscount', $defaults)) {
         $defaults['autodiscount'] = CRM_CiviDiscount_Utils::getIdsTitles($defaults['autodiscount'], $membershipTypes);
         $this->assign('autodiscount', $defaults['autodiscount']);
     }
     if (array_key_exists('pricesets', $defaults)) {
         $priceSets = CRM_CiviDiscount_Utils::getPriceSets();
         $defaults['pricesets'] = CRM_CiviDiscount_Utils::getIdsTitles($defaults['pricesets'], $priceSets);
         $this->assign('pricesets', $defaults['pricesets']);
     }
     CRM_Utils_System::setTitle($defaults['code']);
 }