Release Specific Upgrade Considerations
This document lists things you may wish to take into account as you upgrade. This includes:
- changes to the database schema or contents which deserve special notice
- changes to basic template operation
Part of keeping modern is embracing newer PHP versions. You will need to address various common issues with PHP version incompatibility.
Be sure external links are constructed with
Zen Cart 1.5.8 (currently in development phase, not released yet)
zen_cfg_read_onlyhas been added to the core. This means any plugin authors who use this function should remove it from the plugin (for 1.5.7+) or wrap it in
if (!function_exists('zen_cfg_read_only'))(for older versions of Zen Cart).
The misspelled notifier
NOTIFIY_ORDER_CART_SUBTOTAL_CALCULATEhas been deprecated and replaced by
NOTIFY_ORDER_CART_SUBTOTAL_CALCULATE. (Because of the event aliasing feature, older code that references the misspelled notifier will continue to work, but you should still upgrade your plugins to use the correct one.)
Zen Cart 1.5.7
The configuration constant
UPLOAD_FILENAME_EXTENSIONSwas removed from the database and replaced with an entry in
includes/classes/upload.php. If you have modified this constant from its original setting of
jpg,jpeg,gif,png,eps,cdr,ai,pdf,tif,tiff,bmp,zipyou will want to make the same change in the aforementioned file.
Internal changes necessitated removing the following inclusions from
If you have created additional cron jobs and used this file as a base, please apply the 1.5.7 changes to your custom files.
products_description.products_viewedhas been deprecated. It will be deleted in a future release. Product view tracking is now done using the table
External links have been updated to use
rel="noreferrer noopener". If you use external links (for social networking, manufacturer sites, product URLs, etc.) you should update your template to adopt this practice.
A number of constants which were unused by the core were removed from language files. If you use a plugin which relied on these defines, you should expect a PHP Notice in your
/logsfolder. To resolve this, define the needed constants in a plugin specific file. Some of the defines removed are
DATE_TIME_FORMAT, which some plugins may have used even though core Zen Cart code does not.
Zen Cart 1.5.6
$downloads, returned from
includes/modules/downloads, changed from a query result to an array. The following template files had to be updated to accommodate this change:
You will want to adjust any copies of these files in your template to process an array rather than a database query.
The table containing the EZ-Pages data (
ezpages) was split into two tables,
ezpages_content. This was done in order to add multi-language capabilities. Accordingly, any files (template overrides or custom files) which reference the
ezpagestable will need adjustment to account for this division.
Date format updates began in this release - see date standardization.
Zen Cart 1.5.5
The arguments for the notifier
NOTIFY_ORDER_AFTER_SEND_ORDER_EMAILwere changed. This necessitated a code change in the observers watching for it.
responsive_classictemplate was introduced in this release. If you are coming from an older release with an older template, be sure to check and verify that your template performs properly on mobile devices. If not, you can use Responsive Classic or select another responsive template.
Starting in this version, the email css was pulled out of the individual templates into a shared file called
email/email_common.css. If you are creating or updating email templates, you should follow this new practice.
header('X-Frame-Options:SAMEORIGIN');to prevent clickjacking. If your template is older than 1.5.5, you will need to manually incorporate this change.
Zen Cart 1.5.2
- The list of pages created by
includes/modules/pages/header_php.phpchanged from a query result to an array. So the template file
includes/templates/YOURTEMPLATE/templates/tpl_page_default.phphad to be updated to accommodate this change.
Zen Cart 1.5.0
- The admin menus are no longer built by files ending in
.dhtml. Instead, a new database table called
admin_pageswas introduced. Mods which create their own menu entries must also follow this convention. Guidelines for upgrading plugins to 1.5 include instructions on this step.