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PluginsDevKitHooks & Events

Hooks & Events

Moodle 4.5+ Hooks

Three hooks registered in db/hooks.php. All gated by devkit::is_enabled() && debugbar::is_enabled().

HookCallbackWhat it does
core\hook\after_confighook_callbacks::after_config()Loads Composer autoloader. Wraps $DB with PDO tracing. Adds PDO to debug bar database collector.
core\hook\output\before_standard_head_html_generationhook_callbacks::before_standard_head_html_generation()Injects debug bar CSS/JS in <head>.
core\hook\output\before_footer_html_generationhook_callbacks::before_footer_html_generation()Injects debug bar HTML at page bottom.

Event Observer

Wildcard observer registered in db/events.php. Catches EVERY Moodle event.

$observers = [
    [
        'eventname' => '*',
        'callback' => '\local_devkit\local\observer::observe_all_events',
        'priority' => 999999,
    ],
];

Logs each event to debug bar Timeline tab: event name, class, description, data, context, URL.

Handy for seeing what events fire during any action.

DevelopmentInstallation