Extension Installer/Triggers/onAfterExtensionInstall
From Joomla! Documentation
< Extension Installer | Triggers
The onAfterExtensionInstall trigger occurs after the installation of an extension. It has two parameters:
- installer A copy of the installer instance that was used. This it to get access to any error messages.
- eid The extension ID of the installed extension. The ID may be either a valid numeric value (positive integer), a zero value (when the extension doesn't have a corresponding entry in the extensions table but it is valid) or false if the installation failed.
Note The extension adapter may shift internally to an update procedure from an install procedure. The same information is passed but the functional actions are different.