constant MAINTENANCE_MODE

1 core/authorize.php MAINTENANCE_MODE
1 core/install.php MAINTENANCE_MODE
1 core/update.php MAINTENANCE_MODE

Global flag indicating that update.php is being run.

When this flag is set, various operations do not take place, such as invoking hook_init() and hook_exit(), css/js preprocessing, and translation.

This constant is defined using define() instead of const so that PHP versions older than 5.3 can display the proper PHP requirements instead of causing a fatal error.

8 uses of MAINTENANCE_MODE

ajax_footer in core/includes/ajax.inc: Performs end-of-Ajax-request tasks.
backdrop_exit in core/includes/common.inc: Performs end-of-request tasks.
backdrop_installation_attempted in core/includes/bootstrap.inc: Returns TRUE if a Backdrop installation is currently being attempted.
dashboard_user_login in core/modules/dashboard/dashboard.module: Implements hook_user_login().
error_displayable in core/includes/errors.inc: Determines whether an error should be displayed.

... See full list

File

core/update.php, line 47: Administrative page for handling updates from one Backdrop version to another.

Code

define('MAINTENANCE_MODE', 'update')