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
Note: Please be sure to also check Template Changes.
ALL Versions
-
Part of staying up to date is monitoring not just your Zen Cart version, but all your other software dependencies, such as JavaScript. Use a tool like Google Chrome Lighthouse to find outdated JavaScript libraries with known vulnerabilities.
-
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
rel="noreferrer noopener"
. -
If you use a custom template, check it against the template changes list.
Zen Cart 1.5.8 (currently in development phase, not released yet)
-
Most “functions” (both admin and non-admin) have been consolidated into files located in
/includes/functions/
. Some have been merged together. Some changes are listed below. -
Language file inclusions must be changed to comply with the new language file format. See Developer Information on Array based Language files for more details.
-
The function
zen_parse_search_string
input parameters have been reversed. Plugins that use this function will require modification. -
The function
zen_get_countries
returns different array keys than previously. Admin plugins that use this function may use the new admin functionzen_get_countries_for_admin_pulldown
. -
The function
zen_cfg_read_only
has been added. This means any plugin authors who provided their own version of this function should remove it from their plugin (for 1.5.7+) or wrap it inif (!function_exists('zen_cfg_read_only'))
(for older versions of Zen Cart). -
The misspelled notifier
NOTIFIY_ORDER_CART_SUBTOTAL_CALCULATE
has been deprecated and replaced byNOTIFY_ORDER_CART_SUBTOTAL_CALCULATE
. Code that references the misspelled notifier will continue to work (due to the event aliasing feature), but plugins should be updated to use the corrected name. -
The constant
ROBOTS_PAGES_TO_SKIP
was previously located in the language filemeta_tags.php
despite not being language-related.
It has been moved to its own file in/includes/extra_configures/robots_pages_to_skip.php
.
Plugin pages that do not require indexing (such as Back In Stock subscribe/unsubscribe) should be added to the list in the constant definition.
Zen Cart 1.5.7
-
The configuration constant
UPLOAD_FILENAME_EXTENSIONS
was removed from the database and replaced with an entry inincludes/classes/upload.php
. If you have modified this constant from its original setting ofjpg,jpeg,gif,png,eps,cdr,ai,pdf,tif,tiff,bmp,zip
you will want to add a custom define (in a new file) in both your/includes/extra_configures/
andYOUR_ADMIN/includes/extra_configures/
directories to set all the allowed extensions you want to support site-wide. -
Internal changes necessitated removing the following inclusions from
admin/includes/auto_loaders/currency_cron.core.php
:class.base.php
init_file_db_names.php
init_database.php
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.
-
The database field
products_description.products_viewed
has been deprecated. It will be deleted in a future release. Product view tracking is now done using the tablecount_product_views
. -
External links have been updated to use
rel="noopener"
orrel="noreferrer noopener"
. If you use external links (for social networking, manufacturer sites, product URLs, etc.) you should update your template to adopt this practice. -
The
shopping_cart
page no longer usesTEXT_INFORMATION
from theshopping_cart.php
language file. You will need to move the content of that define to the newhtml_includes/YOURTEMPLATE/define_shopping_cart.php
page. -
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
/logs
folder. To resolve this, define the needed constants in a plugin specific file or an override, as appropriate. Some of the defines removed areDATE_FORMAT_SHORT
andDATE_TIME_FORMAT
, which some plugins may have used even though core Zen Cart code does not. -
The Display Logs plugin is now built-in. If you had its files installed in prior versions, remove all those files as part of your upgrade. Then if you want to enable the plugin simply go to Admin > Modules > Plugins.
-
The Admin Login as Customer plugin, which allowed you to login on a customer’s behalf, is now built-in. If you had its files installed in prior versions, remove all those files as part of your upgrade, and configure as described on the Place Order help page.
-
The login form built by
includes/templates/template_default/templates/tpl_login_default.php
was changed so that theid
andclass
are bothloginForm
, rather thanlogin
, as in prior releases. This is important since a direct reference tologinForm
is made in includes/modules/pages/login/on_load_main.js.
Zen Cart 1.5.6
-
The variable
$downloads
, returned fromincludes/modules/downloads
, changed from a query result to an array. The following template files had to be updated to accommodate this change:tpl_modules_downloads.php
tpl_account_history_info_default.php
(possibly)
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
andezpages_content
. This was done in order to add multi-language capabilities. Accordingly, any files (template overrides or custom files) which reference theezpages
table 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_EMAIL
were changed. This necessitated a code change in the observers watching for it. -
The
responsive_classic
template 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. -
The phpBB object was removed
Zen Cart 1.5.2
- The list of pages created by
includes/modules/pages/header_php.php
changed from a query result to an array. So the template fileincludes/templates/YOURTEMPLATE/templates/tpl_page_default.php
had 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 calledadmin_pages
was 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.