One-Page Checkout [Support Thread]

Davis, it sounds like you're missing the tpl_modules_checkout_one_shipping.php file from either your template_default/templates directory or it's been damaged in some way.

lat9:

Davis, it sounds like you're missing the tpl_modules_checkout_one_shipping.php file from either your template_default/templates directory or it's been damaged in some way.

Hi lat9

I've upload tpl_modules_checkout_one_shipping.php file again, but still doesn't work.

Is it necessary to add ob_flush (); line? If I remove this line, then the plugin works well.

require ($template->get_template_dir ('tpl_modules_checkout_one_shipping.php', DIR_WS_TEMPLATE, $current_page_base, 'templates'). '/tpl_modules_checkout_one_shipping.php');
                    $shipping_html = ob_get_clean ();
return $shipping_html;
ob_flush ();

Dave, your version of /includes/classes/ajax/zcAjaxOnePageCheckout.php is the one that's apparently damaged. In the as-shipped version there is no "return $shipping_html;" statement at that point of the code.

lat9:

Dave, your version of /includes/classes/ajax/zcAjaxOnePageCheckout.php is the one that's apparently damaged. In the as-shipped version there is no "return $shipping_html;" statement at that point of the code.

sorry, my mistake, return $shipping_html is added for debug purpose. After removing this line, I still got the messy code in the response.

y051313:

Is it necessary to add ob_flush (); line? If I remove this line, then the plugin works well.

require ($template->get_template_dir ('tpl_modules_checkout_one_shipping.php', DIR_WS_TEMPLATE, $current_page_base, 'templates'). '/tpl_modules_checkout_one_shipping.php');
$shipping_html = ob_get_clean ();
return $shipping_html;
ob_flush ();

Although I'm not familiar with this module and only have the small piece of code posted to go by, I too, wonder about the ob_flush (); 
Usually, if used, it is at the beginning of the code and not the end.

lat9 can give more details on it but I would say if it corrects your problem and doesn't create any new ones, then remove it.

@Website Rob, the as-shipped code fragment reads:

                    ob_start ();
                    require ($template->get_template_dir ('tpl_modules_checkout_one_shipping.php', DIR_WS_TEMPLATE, $current_page_base, 'templates'). '/tpl_modules_checkout_one_shipping.php');
                    $shipping_html = ob_get_clean ();
                    ob_flush ();

@y051313, I used the credentials you sent on April 15 to login and went to checkout. It looks to me like the AJAX request/response information is correctly flowing properly on your beta .net site. I didn't click through to completion, since there was a product in the test-user's cart when I got there. Please advise.

lat9:

@Website Rob, the as-shipped code fragment reads:

                ob_start ();
                require ($template->get_template_dir ('tpl_modules_checkout_one_shipping.php', DIR_WS_TEMPLATE, $current_page_base, 'templates'). '/tpl_modules_checkout_one_shipping.php');
                $shipping_html = ob_get_clean ();
                ob_flush ();

> @y051313, I used the credentials you sent on April 15 to login and went to checkout.  It looks to me like the AJAX request/response information is correctly flowing properly on your beta .net site.  I didn't click through to completion, since there was a product in the test-user's cart when I got there.  Please advise.

Hi lay9

I've removed the ob_flush (); line on the test site, that's why you didn't see any error.

I've added ob_flush(); back, now when you check/uncheck the "Shipping Address, Same as Billing?" checkbox, you will see error msg.

error: status=parsererror, errorThrown = SyntaxError: Unexpected end of JSON input, override: [object Object]

Best
Davis

There's a bunch of other AJAX-related handling on that site, @y051313. Have you checked that the version of /jscript/jscript_framework.php in your lite_red template's folder is the version shipped with OPC?

lat9:

There's a bunch of other AJAX-related handling on that site, @y051313. Have you checked that the version of /jscript/jscript_framework.php in your lite_red template's folder is the version shipped with OPC?

Yes, I'm sure. I've re-upload jscript_framework.php file in my own template and template_default folder

y051313:

Yes, I'm sure. I've re-upload jscript_framework.php file in my own template and template_default folder

Hi lat9

It turns out the issue is caused by the gzip setting in the zen cart admin page. If this option is set to off, then the plugin works.

ob_flush and gzip can't be used together.

Best
Davis

y051313:

Hi lat9

It turns out the issue is caused by the gzip setting in the zen cart admin page. If this option is set to off, then the plugin works.

ob_flush and gzip can't be used together.

Best
Davis
Nice detective work, Davis! That gives me something to (hopefully) reproduce ... and correct.

lat9:

Nice detective work, Davis! That gives me something to (hopefully) reproduce ... and correct.

Beg to differ: ob_flush() and Gzip (in admin) are working fine together, no issues at all.

lat9:

Nice detective work, Davis! That gives me something to (hopefully) reproduce ... and correct.

frank18:

Beg to differ: ob_flush() and Gzip (in admin) are working fine together, no issues at all.
Hmm, then something's different between the two installations. Would you both "remind" me of the Zen Cart and PHP versions and template that your stores are using?

lat9:

Hmm, then something's different between the two installations. Would you both "remind" me of the Zen Cart and PHP versions and template that your stores are using?

Thanks Cindy, my store runs ZC 1.5.5e with PHP 5.6.x, template is a cloned Responsive Classic (just different colors), so pretty much standard.

frank18:

Thanks Cindy, my store runs ZC 1.5.5e with PHP 5.6.x, template is a cloned Responsive Classic (just different colors), so pretty much standard.

Just swapped to** PHP Version:** 7.0.18 (Zend: 3.0.0), did a test order (direct bank deposit) and had no issues with Gzip switched on.

frank18:

Just swapped to** PHP Version:** 7.0.18 (Zend: 3.0.0), did a test order (direct bank deposit) and had no issues with Gzip switched on.

I'm using
PHP Version: 5.6.9 (Zend: 2.6.0)
ZC v1.5.5e

http://stackoverflow.com/questions/12089348/gzip-or-ob-flush-which-is-better

Has anyone tested OPC with the popular Ozpost shipping module (found here https://www.zen-cart.com/downloads.php?do=file&id=899 ) ??

Any feedback is much appreciated. Thanks

frank18:

Has anyone tested OPC with the popular Ozpost shipping module (found here https://www.zen-cart.com/downloads.php?do=file&id=899 ) ??

Any feedback is much appreciated. Thanks

Can answer my own question: The Ozpost shipping module works fine with OPC. I have it working on 2 local and 1 live installation. No issues, no code modifications needed.

frank18:

Can answer my own question: The Ozpost shipping module works fine with OPC. I have it working on 2 local and 1 live installation. No issues, no code modifications needed.
Thanks, @frank18, for the follow-up. I'll update the OPC readme to reflect your interoperability report!

This is a great add-on. The Best.

Anyway, I have been running OPC version 1.0.5, so I am trying to update to 1.2.0.

My problem comes when I try to modify the tpl_checkout_one_default.php for my template override to make it better match my template and preferred flow of checkout. If I move the shipping selection div at all it stops being able to update the total when you change the shipping method.

I'm pretty sure I'm missing something simple, so any help would be appreciated.