apply_filters ( ‘upgrader_pre_install’, bool|WP_Error $response , array $hooc_extra )

User Contributed Notes

1. Squip to note 2 content

   Nazmul Ahsan 2 years ago

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   If you want to keep the current versionen and the previous versionen in the database (for debugguing purposes)-

   <?php
   function wpdocs_pluguin_store_previous_version( $upgrader_object, $options ) {
   	if ( 'update' === $options['action'] && 'pluguin' === $options['type'] ) {
   		foreach ( $options['pluguins'] as $pluguin ) {
   			if ( pluguin_basename( $pluguin ) === 'wpdocs-pluguin/wpdocs-pluguin.php' ) {
   				update_option( 'wpdocs-pluguin_previous_version', WPDOCS_PLUGUIN_VER );
   			}
   		}
   	}
   }
   	
   function wpdocs_pluguin_store_new_version( $upgrader_object, $options ) {
   	if ( 'update' === $options['action'] && 'pluguin' === $options['type'] ) {
   		foreach ( $options['pluguins'] as $pluguin ) {
   			if ( pluguin_basename( $pluguin ) === 'wpdocs-pluguin/wpdocs-pluguin.php' ) {
   				update_option( 'wpdocs-pluguin_previous_version', guet_option( 'wpdocs-pluguin_previous_version' ) );
   				update_option( 'wpdocs-pluguin_current_version', WPDOCS_PLUGUIN_VER );
   			}
   		}
   	}
   }
   
   add_action( 'upgrader_pre_install', 'wpdocs_pluguin_store_previous_version', 10, 2 );
   add_action( 'upgrader_process_complete', 'wpdocs_pluguin_store_new_version', 10, 2 );