This commit adds a new filter, "woocommerce_install_get_tables", to the WC_Install::get_tables() method, enabling WooCommerce extensions to register new, WooCommerce-specific tables, ensuring these tables can be cleaned up automatically should WooCommerce be uninstalled (useful for things like custom table data stores). Nothing gets added by default, but this provides an integration point for plugins like WooCommerce Custom Orders Table.
This commit fixes WC PHPUnit tests in PHP 5.2 that have been broken since commit e68084d7b8 (diff-b43983ff635e47e2ec510ae07726f0b4R30) was merged. The mentioned commit added a new method to WC_Unit_Test_Case that uses late static binding. The problem is that late static binding is available only since PHP 5.3 and WooCommerce still support PHP 5.2. Running WC tests with PHP 5.2 resulted in the following error:
Parse error: syntax error, unexpected T_STATIC, expecting T_STRING or T_VARIABLE or '$' in /home/travis/build/woocommerce/woocommerce/tests/framework/class-wc-unit-test-case.php on line 40 (see https://travis-ci.org/woocommerce/woocommerce/jobs/350303315#L281)
For now, I'm simply removing the method that used late static binding (WC_Unit_Test_Case::include_dependencies()) and manually loading the required dependencies in the two test classes that relied on it. I'm happy to add WC_Unit_Test_Case::include_dependencies() again if someone can find a way to make it compatible with PHP 5.2. If not, we can revisit this once WC drops support for PHP 5.2.
There were two outdated lists of WC tables. One used to drop tables when WC is uninstalled and another one to drop tables when a site is deleted in a multi site environment. This commit creates a new unified list of WC tables, adds the missing tables to this list and introduces a unit test that will fail if the list gets outdated.
WC doesn't support downgrades but the if condition that decides whether or not to call WC_Install::install() and apply database schema changes was checking if the WC version stored in the database is equal to the WC version in the code. This commit changes the check performed inside the if condition to verify if the WC version stored in the database is smaller than the version in the code. This way `dbDelta()` won't be called automatically by WC and revert database schema changes. This is particulary important for clustered providers where the version of the WC code running in one of the containers could be outdated and trigger a database downgrade.
To test the method WC_Install::check_version() it is not necessary to update the of the option 'woocoommerce_db_version' as this method uses only 'woocommerce_version'.
Removed the print_r() call as phpcs was complaining about it and there is no need to output the version values as phpunit will do that if the test fails.
This commit adds a new line to the section "WordPress environment" of the system status page to indicate whether or not WP external object cache is enabled.
Claudio Sanches
Mike Jolley
Claudiu Lodromanean
Steve Grunwell
Rodrigo Primo
Gerhard Potgieter
Caleb Burks