' . JText::_( 'UPGRADE NEEDED!' ) . '
' . JText::_('A previous version of SQL 2 Excel is detected. An upgrade of the SQL 2 Excel table structure is needed in order to use this version of SQL 2 Excel with your existing table data. Click on the button below to perform the upgrade.') . '
 . 'components/com_sql2excel/assets/images/upgrade_now.png)
';
// Version 0.9.2 - Check #__sql2excel_worksheets columns
$db = & JFactory::getDBO();
$query = 'SHOW COLUMNS FROM #__sql2excel_worksheets';
$db->setQuery( $query );
$cols = $db->loadObjectList();
// Pro 1.0.1, 1.1.3, 1.2.2, 1.6.0, 1.7.0, 2.1.0, 2.4.0, 2.5.0
if ( count($cols) < 40 ) {
return $upgrade;
} else {
// Pro 1.0.1 - (15)
// Pro 1.2.0 - (17)
// Pro 1.6.0 - (19)
// Pro 1.9.0 - (20)
// Pro 2.4.0 - (23)
// Pro 2.5.0 - (24)
$db = & JFactory::getDBO();
$query = 'SHOW COLUMNS FROM #__sql2excel_workbooks';
$db->setQuery( $query );
$cols = $db->loadObjectList();
if ( count($cols) < 24 ) {
return $upgrade;
} else {
if ( ! Sql2excelControlPanel::tableExists('#__sql2excel_databases') ) {
return $upgrade;
} else {
// 1.6.0 (23)
// 1.8.0 (36)
$db = & JFactory::getDBO();
$query = 'SHOW COLUMNS FROM #__sql2excel_schedules';
$db->setQuery( $query );
$cols = $db->loadObjectList();
if ( count($cols) < 36 ) {
return $upgrade;
} else {
return '';
}
}
}
}
}
function tableExists($tableName) {
$db = & JFactory::getDBO();
$prefix = $db->getPrefix();
$tableName = str_replace('#__', $prefix, $tableName);
$tableList = $db->getTableList($db);
if ( in_array($tableName,$tableList) ) {
return true;
} else {
return false;
}
}
}