Fast and Easy Checkout

[numinix]

First, I need to update the page on a shipping selection without redirecting to another page. I've started another thread specific to this using JavaScript:

http://www.zen-cart.com/forum/showthread.php?t=76152

[numinix]

My latest code to bypass the checkout_confirmation page has the following errors:

Warning: reset() [function.reset]: Passed variable is not an array or object in /home/public_html/1pagecheckout/includes/modules/order_total/ot_group_pricing.php on line 77

Warning: Variable passed to each() is not an array or object in /home/public_html/1pagecheckout/includes/modules/order_total/ot_group_pricing.php on line 78

Warning: reset() [function.reset]: Passed variable is not an array or object in /home/public_html/1pagecheckout/includes/modules/order_total/ot_group_pricing.php on line 77

Warning: Variable passed to each() is not an array or object in /home/public_html/1pagecheckout/includes/modules/order_total/ot_group_pricing.php on line 78

Warning: Cannot modify header information - headers already sent by (output started at /home/public_html/1pagecheckout/includes/modules/order_total/ot_group_pricing.php:77) in /home/public_html/1pagecheckout/includes/functions/functions_general.php on line 44

Here is the code from the header_php.php file:

<?php  
  $zco_notifier->notify('NOTIFY_HEADER_START_CHECKOUT_SHIPPING');
  $zco_notifier->notify('NOTIFY_HEADER_START_CHECKOUT_PAYMENT');
  require(DIR_WS_CLASSES . 'order_total.php');
  $order_total_modules = new order_total;
  $order_total_modules->collect_posts();
  $order_total_modules->pre_confirmation_check();
 
  require(DIR_WS_CLASSES . 'order.php');
  $order = new order;
  require(DIR_WS_CLASSES . 'payment.php');
  $payment_modules = new payment($payment);
  $flagOnSubmit = sizeof($payment_modules->selection());
  require(DIR_WS_CLASSES . 'shipping.php');
  $shipping_modules = new shipping;
 
  require_once(DIR_WS_CLASSES . 'http_client.php');
 
// if there is nothing in the customers cart, redirect them to the shopping cart page
  if ($_SESSION['cart']->count_contents() <= 0) {
    zen_redirect(zen_href_link(FILENAME_TIME_OUT));
  }
 
// if the customer is not logged on, redirect them to the login page
  if (!$_SESSION['customer_id']) {
    $_SESSION['navigation']->set_snapshot();
    zen_redirect(zen_href_link(FILENAME_LOGIN, '', 'SSL'));
  } else {
    // validate customer
    if (zen_get_customer_validate_session($_SESSION['customer_id']) == false) {
      $_SESSION['navigation']->set_snapshot();
      zen_redirect(zen_href_link(FILENAME_LOGIN, '', 'SSL'));
    }
  }
 
// avoid hack attempts during the checkout procedure by checking the internal cartID
  if (isset($_SESSION['cart']->cartID) && $_SESSION['cartID']) {
    if ($_SESSION['cart']->cartID != $_SESSION['cartID']) {
      zen_redirect(zen_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'));
    }
  }
 
// Validate Cart for checkout
  $_SESSION['valid_to_checkout'] = true;
  $_SESSION['cart']->get_products(true);
  if ($_SESSION['valid_to_checkout'] == false) {
    $messageStack->add('header', ERROR_CART_UPDATE, 'error');
    zen_redirect(zen_href_link(FILENAME_SHOPPING_CART));
  }
// Stock Check
  if ( (STOCK_CHECK == 'true') && (STOCK_ALLOW_CHECKOUT != 'true') ) {
    $products = $_SESSION['cart']->get_products();
    for ($i=0, $n=sizeof($products); $i<$n; $i++) {
      if (zen_check_stock($products[$i]['id'], $products[$i]['quantity'])) {
        zen_redirect(zen_href_link(FILENAME_SHOPPING_CART));
        break;
      }
    }
  }
// if no billing destination address was selected, use the customers own address as default
  if (!$_SESSION['billto']) {
    $_SESSION['billto'] = $_SESSION['customer_default_address_id'];
  } else {
    // verify the selected billing address
    $check_address_query = "SELECT count(*) AS total FROM " . TABLE_ADDRESS_BOOK . "
                            WHERE customers_id = :customersID
                            AND address_book_id = :addressBookID";
    $check_address_query = $db->bindVars($check_address_query, ':customersID', $_SESSION['customer_id'], 'integer');
    $check_address_query = $db->bindVars($check_address_query, ':addressBookID', $_SESSION['billto'], 'integer');
    $check_address = $db->Execute($check_address_query);
    if ($check_address->fields['total'] != '1') {
      $_SESSION['billto'] = $_SESSION['customer_default_address_id'];
      $_SESSION['payment'] = '';
    }
  }
 
// if no shipping destination address was selected, use the customers own address as default
  if (!$_SESSION['sendto']) {
    $_SESSION['sendto'] = $_SESSION['customer_default_address_id'];
  } else {
// verify the selected shipping address
    $check_address_query = "SELECT count(*) AS total
                            FROM   " . TABLE_ADDRESS_BOOK . "
                            WHERE  customers_id = :customersID
                            AND    address_book_id = :addressBookID";
    $check_address_query = $db->bindVars($check_address_query, ':customersID', $_SESSION['customer_id'], 'integer');
    $check_address_query = $db->bindVars($check_address_query, ':addressBookID', $_SESSION['sendto'], 'integer');
    $check_address = $db->Execute($check_address_query);
    if ($check_address->fields['total'] != '1') {
      $_SESSION['sendto'] = $_SESSION['customer_default_address_id'];
      $_SESSION['shipping'] = '';
    }
  }
 
  $total_weight = $_SESSION['cart']->show_weight();
  $total_count = $_SESSION['cart']->count_contents();
 
  // load all enabled shipping modules
  if ( defined('MODULE_ORDER_TOTAL_SHIPPING_FREE_SHIPPING') && (MODULE_ORDER_TOTAL_SHIPPING_FREE_SHIPPING == 'true') ) {
    $pass = false;
    switch (MODULE_ORDER_TOTAL_SHIPPING_DESTINATION) {
      case 'national':
        if ($order->delivery['country_id'] == STORE_COUNTRY) {
          $pass = true;
        }
        break;
      case 'international':
        if ($order->delivery['country_id'] != STORE_COUNTRY) {
          $pass = true;
        }
        break;
      case 'both':
        $pass = true;
        break;
    }
    $free_shipping = false;
    if ( ($pass == true) && ($_SESSION['cart']->show_total() >= MODULE_ORDER_TOTAL_SHIPPING_FREE_SHIPPING_OVER) ) {
      $free_shipping = true;
    }
  } else {
    $free_shipping = false;
  }
 
// get all available shipping quotes
  $quotes = $shipping_modules->quote();
// if no shipping method has been selected, automatically select the cheapest method.
// if the modules status was changed when none were available, to save on implementing
// a javascript force-selection method, also automatically select the cheapest shipping
// method if more than one module is now enabled
  if ( !$_SESSION['shipping'] || ( $_SESSION['shipping'] && ($_SESSION['shipping'] == false) && (zen_count_shipping_modules() > 1) ) ) $_SESSION['shipping'] = $shipping_modules->cheapest();
  // Should address-edit button be offered?
  $displayAddressEdit = (MAX_ADDRESS_BOOK_ENTRIES >= 2);
  // if shipping-edit button should be overridden, do so
  $editShippingButtonLink = zen_href_link(FILENAME_CHECKOUT_SHIPPING_ADDRESS, '', 'SSL'); 
  if (isset($_SESSION['payment']) && method_exists($$_SESSION['payment'], 'alterShippingEditButton')) {
    $theLink = $$_SESSION['payment']->alterShippingEditButton();
    if ($theLink) {
      $editShippingButtonLink = $theLink;
      $displayAddressEdit = true;
    }
  }
  $total_weight = $_SESSION['cart']->show_weight();
  $total_count = $_SESSION['cart']->count_contents();
 
  require(DIR_WS_MODULES . zen_get_module_directory('require_languages.php'));
  if (isset($_GET['payment_error']) && is_object(${$_GET['payment_error']}) && ($error = ${$_GET['payment_error']}->get_error())) {
    $messageStack->add('checkout_payment', $error['error'], 'error');
  }
 
 
  // Load the selected shipping module(needed to calculate tax correctly)
  $shipping_modules = new shipping($_SESSION['shipping']);
 
  $comments = $_SESSION['comments']; // process comments
 
  if (isset($_POST['payment'])) $_SESSION['payment'] = $_POST['payment'];
  if (isset($_POST['comments'])) $_SESSION['comments'] = zen_db_prepare_input($_POST['comments']);
 
  switch ($_GET['action']) {
 case 'process':
   $form_action_url = zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL');
      if (zen_not_null($_POST['comments'])) {
        $_SESSION['comments'] = zen_db_prepare_input($_POST['comments']);
      }
      $comments = $_SESSION['comments'];
 
      if ( (zen_count_shipping_modules() > 0) || ($free_shipping == true) ) {
        if ( (isset($_POST['shipping'])) && (strpos($_POST['shipping'], '_')) ) {
          $_SESSION['shipping'] = $_POST['shipping']; // process shipping
          list($module, $method) = explode('_', $_SESSION['shipping']);
          if ( is_object($$module) || ($_SESSION['shipping'] == 'free_free') ) {
            if ($_SESSION['shipping'] == 'free_free') {
              $quote[0]['methods'][0]['title'] = FREE_SHIPPING_TITLE;
             $quote[0]['methods'][0]['cost'] = '0';
            } else {
              $quote = $shipping_modules->quote($method, $module);
            }
            if (isset($quote['error'])) {
              $_SESSION['shipping'] = '';
            } else {
              if ( (isset($quote[0]['methods'][0]['title'])) && (isset($quote[0]['methods'][0]['cost'])) ) {
                $_SESSION['shipping'] = array('id' => $_SESSION['shipping'],
                                  'title' => (($free_shipping == true) ?  $quote[0]['methods'][0]['title'] : $quote[0]['module'] . ' (' . $quote[0]['methods'][0]['title'] . ')'),
                                  'cost' => $quote[0]['methods'][0]['cost']);
                zen_redirect(zen_href_link(FILENAME_CHECKOUT_CONFIRMATION, '', 'SSL')); 
              }
            }
          } else {
            $_SESSION['shipping'] = false;
          }
        }
      } else {
        $_SESSION['shipping'] = false;
        zen_redirect(zen_href_link(FILENAME_CHECKOUT_CONFIRMATION, '', 'SSL')); 
      }
      break;
    case 'update': 
      $form_action_url = zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL');   
      if (zen_not_null($_POST['comments'])) {
       $_SESSION['comments'] = zen_db_prepare_input($_POST['comments']);
      }
      $comments = $_SESSION['comments'];
 
      if ( (zen_count_shipping_modules() > 0) || ($free_shipping == true) ) {
        if ( (isset($_POST['shipping'])) && (strpos($_POST['shipping'], '_')) ) {
          $_SESSION['shipping'] = $_POST['shipping']; // process shipping
          list($module, $method) = explode('_', $_SESSION['shipping']);
          if ( is_object($$module) || ($_SESSION['shipping'] == 'free_free') ) {
            if ($_SESSION['shipping'] == 'free_free') {
              $quote[0]['methods'][0]['title'] = FREE_SHIPPING_TITLE;
              $quote[0]['methods'][0]['cost'] = '0';
            } else {
              $quote = $shipping_modules->quote($method, $module);
            }
            if (isset($quote['error'])) {
              $_SESSION['shipping'] = '';
            } else {
              if ( (isset($quote[0]['methods'][0]['title'])) && (isset($quote[0]['methods'][0]['cost'])) ) {
                $_SESSION['shipping'] = array('id' => $_SESSION['shipping'],
                                  'title' => (($free_shipping == true) ?  $quote[0]['methods'][0]['title'] : $quote[0]['module'] . ' (' . $quote[0]['methods'][0]['title'] . ')'),
                                  'cost' => $quote[0]['methods'][0]['cost']);
 
                zen_redirect(zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL')); 
              }
            }
          } else {
            $_SESSION['shipping'] = false;
          }
        }
      } else {
        $_SESSION['shipping'] = false;
     zen_redirect(zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL'));  
      }
      break;
    case 'submit':  
      if (isset($$_SESSION['payment']->form_action_url)) {
     $form_action_url = $$_SESSION['payment']->form_action_url;
     } else {
    $form_action_url = zen_href_link(FILENAME_CHECKOUT_PROCESS, '', 'SSL');
      }
      // process comments 
   if (zen_not_null($_POST['comments'])) {
        $_SESSION['comments'] = zen_db_prepare_input($_POST['comments']);
      }
      $comments = $_SESSION['comments'];
      // process shipping
      if ( (zen_count_shipping_modules() > 0) || ($free_shipping == true) ) {
        if ( (isset($_POST['shipping'])) && (strpos($_POST['shipping'], '_')) ) {
          $_SESSION['shipping'] = $_POST['shipping']; // process shipping
          list($module, $method) = explode('_', $_SESSION['shipping']);
          if ( is_object($$module) || ($_SESSION['shipping'] == 'free_free') ) {
            if ($_SESSION['shipping'] == 'free_free') {
              $quote[0]['methods'][0]['title'] = FREE_SHIPPING_TITLE;
              $quote[0]['methods'][0]['cost'] = '0';
            } else {
              $quote = $shipping_modules->quote($method, $module);
            }
            if (isset($quote['error'])) {
              $_SESSION['shipping'] = '';
            } else {
              if ( (isset($quote[0]['methods'][0]['title'])) && (isset($quote[0]['methods'][0]['cost'])) ) {
                $_SESSION['shipping'] = array('id' => $_SESSION['shipping'],
                                              'title' => (($free_shipping == true) ?  $quote[0]['methods'][0]['title'] : $quote[0]['module'] . ' (' . $quote[0]['methods'][0]['title'] . ')'),
                                              'cost' => $quote[0]['methods'][0]['cost']);
          if (isset($$_SESSION['payment']->form_action_url)) {
         zen_redirect($$_SESSION['payment']->form_action_url);
         } else {
         zen_redirect(zen_href_link(FILENAME_CHECKOUT_PROCESS, '', 'SSL'));
          }
              }
            }
          } else {
            $_SESSION['shipping'] = false;
          }
        }
      } else {
        $_SESSION['shipping'] = false;
        if (isset($$_SESSION['payment']->form_action_url)) {
    zen_redirect($$_SESSION['payment']->form_action_url);
  } else {
    zen_redirect(zen_href_link(FILENAME_CHECKOUT_PROCESS, '', 'SSL'));
     }
      }
      break;
    case 'null':
      $form_action_url = zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL');
      break;
    default:
      $form_action_url = zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL');
      zen_redirect(zen_href_link(FILENAME_CHECKOUT, 'action=null', 'SSL'));
      break;
  }
 
  $breadcrumb->add(NAVBAR_TITLE_1, zen_href_link(FILENAME_CHECKOUT, '', 'SSL'));  
 
  $zco_notifier->notify('NOTIFY_HEADER_END_CHECKOUT_SHIPPING');
  $zco_notifier->notify('NOTIFY_HEADER_END_CHECKOUT_PAYMENT');
 
  if (FEC_ONE_PAGE == 'true') {
  $zco_notifier->notify('NOTIFY_HEADER_START_CHECKOUT_CONFIRMATION');  
// update customers_referral with $_SESSION['gv_id']
    if ($_SESSION['cc_id']) {
      $discount_coupon_query = "SELECT coupon_code
                                FROM " . TABLE_COUPONS . "
                                WHERE coupon_id = :couponID";
 
      $discount_coupon_query = $db->bindVars($discount_coupon_query, ':couponID', $_SESSION['cc_id'], 'integer');
      $discount_coupon = $db->Execute($discount_coupon_query);
      $customers_referral_query = "SELECT customers_referral
                                   FROM " . TABLE_CUSTOMERS . "
                                   WHERE customers_id = :customersID";
      $customers_referral_query = $db->bindVars($customers_referral_query, ':customersID', $_SESSION['customer_id'], 'integer');
      $customers_referral = $db->Execute($customers_referral_query);
// only use discount coupon if set by coupon
      if ($customers_referral->fields['customers_referral'] == '' and CUSTOMERS_REFERRAL_STATUS == 1) {
        $sql = "UPDATE " . TABLE_CUSTOMERS . "
                SET customers_referral = :customersReferral
                WHERE customers_id = :customersID";
        $sql = $db->bindVars($sql, ':customersID', $_SESSION['customer_id'], 'integer');
        $sql = $db->bindVars($sql, ':customersReferral', $discount_coupon->fields['coupon_code'], 'string');
        $db->Execute($sql);
      } else {
        // do not update referral was added before
      }
    }
  $zco_notifier->notify('NOTIFY_HEADER_END_CHECKOUT_CONFIRMATION');
  }
?>

[numinix]

Script is ready for bug testing:

http://www.numinix.com/1pagecheckout/

The script is called Fast and Easy Checkout for Zen Cart and includes either a 2 step process (shipping/payment + confirmation), or the option to have a one page checkout without the confirmation page.

The script updates the order_total on the same page using a refresh function so that confirmation is not needed. It also auto refreshes if you enter a discount coupon. The script also will not validate if you forget to choose a payment method or select the terms and conditions checkbox and an error message is printed at the top of the form.

I've tested it in IE7 and FF without errors.

[yellow1912]

Does it touch any core code numinix?

[numinix]

It only overwrites one file, filenames.php and it just defines FILENAME_CHECKOUT_SHIPPING and FILENAME_CHECKOUT_PAYMENT as 'checkout'

I'm going to see if there is a way to override the filenames.php page. I'd also like to be able to do some conditional statements in this page so that the module can be turned on or off as a whole by putting the definitions back to normal.

At the moment, I haven't tried or figured a way to do this...

[yellow1912]

One of the possible ways, is to define it in table configuration, the constants will be available throughout the site.

[numinix]

Yes, but then when I placed that conditional statement in filenames.php I think I received an error. I'm going to try it again now and post back.

[numinix]

I remember the issue, filenames.php doesn't have require('includes/application_top.php');

[yellow1912]

I see what you mean, not really anything serious though. We can try to define it at the init_loaders but I think it's not necessary, just 2 small changes in filesname.php. I hope DrByte can suggest something tho.

Good job by the way. I'll check this out at the end of this week and let you know if it works out okie. Which payment method did you check with this by the way? I'm currently using Paypal, Linkpoint, check/money order.

[numinix]

Only with PayPal, it uses the same process to redirect to the payment processors so I doubt there will be any issues.