One-Page Checkout [Support Thread]

[BillJ]

Sorry, after months of not having time to look into this, yet wishing I had OPC, I've finally got round to looking into it again.

I've come up against another issue with OPC. Whenever I try to confirm an order, I end up back on the checkout page with the message:
"Your order's details have changed. Please review the current values and re-submit."

This is Zen Cart 1.57c with OPC 2.3.9 and using the Responsive Classic template.

Running the opc_debug_redirection_error tool over the log highlights a single, very significant difference:

2021-12-22 00:07:00: Found a redirection back to <code>checkout_one</code>, difference follows.<br><br>  'securityToken' => '00c23d84c0826846b46f1c1500e43b00',
  'customers_host_address' => 'xxxxx',
  'opc' => 
  OnePageCheckout::__set_state(array(
     'isGuestCheckoutEnabled' => true,
     'registeredAccounts' => false,
     'guestIsActive' => true,
     'isEnabled' => true,
     'tempAddressValues' => 
    array (
      'ship' => 
      array (
        'which' => 'bill',
        'company' => 'Saabits Ltd',
        'firstname' => 'Bill',
        'lastname' => 'Jones',
        'street_address' => 'Unit 9, Dainton Manor Estate',
        'suburb' => 'Dainton',
        'city' => 'Newton Abbot',
        'state' => 'Devon',
        'zone_id' => '',
        'postcode' => 'TQ12 5TZ',
        'zone_country_id' => '222',
        'gender' => false,
        'country' => '222',
        'zone_name' => '',
        'error_state_input' => false,
        'country_has_zones' => false,
        'show_pulldown_states' => true,
        'error' => false,
        'validated' => true,
        'selected_country' => '222',
        'state_field_label' => '',
      ),
      'bill' => 
      array (
        'which' => 'bill',
        'company' => 'Saabits Ltd',
        'firstname' => 'Bill',
        'lastname' => 'Jones',
        'street_address' => 'Unit 9, Dainton Manor Estate',
        'suburb' => 'Dainton',
        'city' => 'Newton Abbot',
        'state' => 'Devon',
        'zone_id' => '',
        'postcode' => 'TQ12 5TZ',
        'zone_country_id' => '222',
        'gender' => false,
        'country' => '222',
        'zone_name' => '',
        'error_state_input' => false,
        'country_has_zones' => false,
        'show_pulldown_states' => true,
        'error' => false,
        'validated' => true,
        'selected_country' => '222',
        'state_field_label' => '',
      ),
    ),
     'guestCustomerInfo' => 
    array (
      'firstname' => 'Bill',
      'lastname' => 'Jones',
      'email_address' => '[email protected]',
      'telephone' => '01392 581185',
      'dob' => '',
    ),
     'guestCustomerId' => 9403,
     'tempBilltoAddressBookId' => 11434,
     'tempSendtoAddressBookId' => 11435,
     'dbStringType' => 'stringIgnoreNull',
     'paypalAddressOverride' => NULL,
     'paypalTotalValue' => NULL,
     'paypalTotalValueChanged' => NULL,
     'paypalNoShipping' => NULL,
     'customerInfoOk' => true,
     'billtoTempAddrOk' => true,
     'sendtoTempAddrOk' => true,
     'isVirtualOrder' => false,
     'billtoAddressChangeable' => true,
     'sendtoAddressChangeable' => true,
     'observerAliases' => 
    array (
      'NOTIFIY_ORDER_CART_SUBTOTAL_CALCULATE' => 'NOTIFY_ORDER_CART_SUBTOTAL_CALCULATE',
    ),
     'label_params' => ' class="inputLabel"',
  )),
  'cartID' => '62612',
  'cart' => 
  shoppingCart::__set_state(array(
     'contents' => 
    array (
      377 => 
      array (
        'qty' => 1.0,
      ),
    ),
     'total' => 78.43000000000000682121026329696178436279296875,
     'weight' => 2.5,
     'cartID' => '62612',
     'content_type' => 'physical',
     'free_shipping_item' => 0,
     'free_shipping_weight' => 0,
     'free_shipping_price' => 0.0,
     'download_count' => 0,
     'total_before_discounts' => 65.3599999999999994315658113919198513031005859375,
     'display_debug_messages' => false,
     'flag_duplicate_msgs_set' => false,
     'flag_duplicate_quantity_msgs_set' => 
    array (
    ),
     'observerAliases' => 
    array (
      'NOTIFIY_ORDER_CART_SUBTOTAL_CALCULATE' => 'NOTIFY_ORDER_CART_SUBTOTAL_CALCULATE',
    ),
  )),
  'language' => 'english',
  'languages_id' => '1',
  'languages_code' => 'en',
  'check_valid_prod' => true,
  'layoutType' => 'legacy',
  'currency' => 'GBP',
  'today_is' => '2021-12-22',
  'updateExpirations' => true,
  'antispam_fieldname' => 'AhD5oDXadE',
  'tass' => 
  taxamo_assure::__set_state(array(
     'token' => 'seller_token_uvHTz3pPyqBsdv38I4lNiZUfKHudCCoaD4YU3d95b6U',
     'url' => 'https://seller-transaction-api.marketplace.taxamo.com',
     'transaction' => NULL,
     'transaction_key' => NULL,
     'stored' => false,
     'ioss' => NULL,
     'enabled' => false,
     'error' => NULL,
     'tass_debug' => false,
  )),
  'session_counter' => true,
  'customers_ip_address' => 'xx.xx.xx.xx',
  'inc_ex_tax' => true,
  'new_products_id_in_cart' => '377',
  'valid_to_checkout' => true,
  'cart_errors' => '',
  'cart_country_id' => '222',
  'country_info' => 
  array (
    'countries_name' => 'United Kingdom',
    'countries_iso_code_2' => 'GB',
    'countries_iso_code_3' => 'GBR',
  ),
  'shipping_weight' => 2.5099999999999997868371792719699442386627197265625,
  'is_guest_checkout' => true,
  'customer_id' => 9403,
  'customer_default_address_id' => 11434,
  'customer_country_id' => '222',
  'customer_zone_id' => '',
  'customers_authorization' => '0',
  'billto' => 11434,
  'sendto' => 11434,
  'customer_first_name' => 'xxxxx',
  'customer_last_name' => 'xxxxx',
  'shipping' => 
  array (
    'id' => 'rmbusinessuk_rm48',
    'title' => 'Royal Mail (2nd Class Tracked (Delivered normally within 2-5 working days of despatch))',
    'cost' => 4.9199999999999999289457264239899814128875732421875,
  ),
  'shipping_tax_amount' => 0.9839999999999997637445403597666881978511810302734375,
  'shipping_tax_description' => 'VAT 20%',
  'order_current_total' => <del>'0',
)
</del> <ins>'£84.34',
)
</ins> <hr><br><br>Report completed.

At some point, order_current_total is seen as 0, which clearly isn't the correct value. I'm not sure where to start looking, to be honest.

Everything else appears fine while going through checkout and it all adds up correctly. If I comment out the check on line 277 of includes/modules/pages/checkout_one_confirmation/header_php.php, then the sale completes successfully and the correct amount is charged.

[lat9]

@BillJ, that would imply that OPC can't "find" the order-total value for validation. What template is in use and what's the configured value for the OPC's Order Total, jQuery Selector?

[BillJ]

@BillJ, that would imply that OPC can't "find" the order-total value for validation. What template is in use and what's the configured value for the OPC's Order Total, jQuery Selector?

Thanks. The template is a clone of Responsive Classic with only stylesheet changes and necessary changes for various plug-ins.
The Order Total, jQuery Selector value is:
#ottotal > div:first-child

[BillJ]

This is where #ottotal appears in the HTML source:

<div id="otshipping">
    <div class="vatBox larger forward"></div>
    <div class="totalBox larger forward">&pound;4.92</div>
    <div class="lineTitle larger forward">Royal Mail (2nd Class Tracked (Delivered normally within 2-5 working days of despatch)):</div>
</div>
<br class="clearBoth" />
<div id="ottax">
    <div class="vatBox larger forward"></div>
    <div class="totalBox larger forward">&pound;10.98</div>
    <div class="lineTitle larger forward">VAT 20%:</div>
</div>
<br class="clearBoth" />
<div id="ottotal">
    <div class="vatBox larger forward"></div>
    <div class="totalBox larger forward">&pound;65.89</div>
    <div class="lineTitle larger forward">Total:</div>
</div>

[lat9]

This is where #ottotal appears in the HTML source:

<div id="otshipping">
    <div class="vatBox larger forward"></div>
    <div class="totalBox larger forward">&pound;4.92</div>
    <div class="lineTitle larger forward">Royal Mail (2nd Class Tracked (Delivered normally within 2-5 working days of despatch)):</div>
</div>
<br class="clearBoth" />
<div id="ottax">
    <div class="vatBox larger forward"></div>
    <div class="totalBox larger forward">&pound;10.98</div>
    <div class="lineTitle larger forward">VAT 20%:</div>
</div>
<br class="clearBoth" />
<div id="ottotal">
    <div class="vatBox larger forward"></div>
    <div class="totalBox larger forward">&pound;65.89</div>
    <div class="lineTitle larger forward">Total:</div>
</div>

That would be the issue, since the vatBox div is the first-child. Try changing that configuration setting to #ottotal .totalBox.

[BillJ]

That would be the issue, since the vatBox div is the first-child. Try changing that configuration setting to #ottotal .totalBox.

Thank you so much :)
Setting Order Total, jQuery Selector to #ottotal .totalBox has fixed the problem.

[dbltoe]

may have been in error

[lat9]

I've just submitted v2.3.10 of One-Page Checkout (OPC) for the Zen Cart moderators' review and will post back here when it's available for download.

This release contains changes associated with the following GitHub issues:

#298: Removing duplicate definition from ot_coupon language override.
#302: Correct "Add to Address Book" label, incorrect for=.
#303: Include zc157-added definitions to ot_coupon language override.
#306: Load OPC observer earlier, so it responses to all calls to zen_in_guest_checkout.

Note: This will be the last release supporting Zen Cart versions prior to zc157 (fully patched).

[lat9]

I've just submitted v2.3.10 of One-Page Checkout (OPC) for the Zen Cart moderators' review and will post back here when it's available for download.

This release contains changes associated with the following GitHub issues:

#298: Removing duplicate definition from ot_coupon language override.
#302: Correct "Add to Address Book" label, incorrect for=.
#303: Include zc157-added definitions to ot_coupon language override.
#306: Load OPC observer earlier, so it responses to all calls to zen_in_guest_checkout.

Note: This will be the last release supporting Zen Cart versions prior to zc157 (fully patched).

Now available for download: https://www.zen-cart.com/downloads.php?do=file&id=2095

[lat9]

I've just submitted v2.3.11 of One-Page Checkout for the Zen Cart moderators' review. This version corrects a PHP Fatal error introduced in v2.3.10 ... as identified in GitHub issue #308.

I'll post back here when it's available for download.