source: branches/XPressMU/xpressme_integration_kit/include/onuninstall.php

<?php
$mydirname = basename( dirname( dirname( __FILE__ ) ) ) ;

eval( ' function xoops_module_uninstall_'.$mydirname.'( $module ) { return xpress_onuninstall_base( $module , "'.$mydirname.'" ) ; } ' ) ;


if( ! function_exists( 'xpress_onuninstall_base' ) ) {

function xpress_onuninstall_base( $module , $mydirname )
{
        // transations on module uninstall

        global $ret ; // TODO :-D

        // for Cube 2.1
        if( defined( 'XOOPS_CUBE_LEGACY' ) ) {
                $root =& XCube_Root::getSingleton();
                $root->mDelegateManager->add( 'Legacy.Admin.Event.ModuleUninstall.' . ucfirst($mydirname) . '.Success' , 'xpress_message_append_onuninstall' ) ;
                $ret = array() ;
        } else {
                if( ! is_array( $ret ) ) $ret = array() ;
        }

        $db =& Database::getInstance() ;
        $mid = $module->getVar('mid') ;
        
        $xp_prefix = $mydirname;
        if ($xp_prefix == 'wordpress'){
                $xp_prefix = 'wp';
        }
        
        $xoops_prefix = $db->prefix();

        if (empty($xoops_prefix) || empty($xp_prefix)) {
                $ret[] = '<span style="color:#ff0000;">ERROR: Empty Prefix.</span><br />';
                return false;
        }
        
        $prefix_mod = $xoops_prefix  . '_' . $xp_prefix;
        $sql = "SHOW TABLES LIKE '$prefix_mod%'";
        if ($result = $db->query($sql)) {
                while ($table = $db->fetchRow($result)){
                        $drop_sql = 'DROP TABLE '. $table[0] ;
                        if (!$db->queryF($drop_sql)) {
                                $ret[] = '<span style="color:#ff0000;">ERROR: Could not drop table <b>'.htmlspecialchars($table[0]).'<b>.</span><br />';
                        } else {
                                $ret[] = 'Table <b>'.htmlspecialchars($table[0]).'</b> dropped.<br />';
                        }
                }
        } else {
                $ret[] = '<span style="color:#ff0000;">ERROR: Table not found of prefix <b>'.htmlspecialchars($prefix_mod).'<b> .</span><br />';
                return false;
        }


        // TEMPLATES (Not necessary because modulesadmin removes all templates)
        /* $tplfile_handler =& xoops_gethandler( 'tplfile' ) ;
        $templates =& $tplfile_handler->find( null , 'module' , $mid ) ;
        $tcount = count( $templates ) ;
        if( $tcount > 0 ) {
                $ret[] = 'Deleting templates...' ;
                for( $i = 0 ; $i < $tcount ; $i ++ ) {
                        if( ! $tplfile_handler->delete( $templates[$i] ) ) {
                                $ret[] = '<span style="color:#ff0000;">ERROR: Could not delete template '.$templates[$i]->getVar('tpl_file','s').' from the database. Template ID: <b>'.$templates[$i]->getVar('tpl_id','s').'</b></span><br />';
                        } else {
                                $ret[] = 'Template <b>'.$templates[$i]->getVar('tpl_file','s').'</b> deleted from the database. Template ID: <b>'.$templates[$i]->getVar('tpl_id','s').'</b><br />';
                        }
                }
        }
        unset($templates); */


        return true ;
}

function xpress_message_append_onuninstall( &$module_obj , &$log )
{
        if( is_array( @$GLOBALS['ret'] ) ) {
                foreach( $GLOBALS['ret'] as $message ) {
                        $log->add( strip_tags( $message ) ) ;
                }
        }

        // use mLog->addWarning() or mLog->addError() if necessary
}

}

?>