/**
* remove language data from database
* @param string "all" or "keep_local"
*/
function flush($a_mode = 'all')
{
global $ilDB;
ilObjLanguage::_deleteLangData($this->key, $a_mode == 'keep_local');
if ($a_mode == 'all') {
$ilDB->manipulate("DELETE FROM lng_modules WHERE lang_key = " . $ilDB->quote($this->key, "text"));
}
}
/**
* Import a language file into the ilias database
*
* @param string handling of existing values
* ('keepall','keepnew','replace','delete')
*/
public function importLanguageFile($a_file, $a_mode_existing = 'keepnew')
{
global $ilDB, $ilErr;
// read the new language file
require_once "./Services/Language/classes/class.ilLanguageFile.php";
$import_file_obj = new ilLanguageFile($a_file);
if (!$import_file_obj->read()) {
$ilErr->raiseError($import_file_obj->getErrorMessage(), $ilErr->MESSAGE);
}
switch ($a_mode_existing) {
// keep all existing entries
case 'keepall':
$to_keep = $this->getAllValues();
break;
// keep existing online changes
// keep existing online changes
case 'keepnew':
$to_keep = $this->getChangedValues();
break;
// replace all existing definitions
// replace all existing definitions
case 'replace':
$to_keep = array();
break;
// delete all existing entries
// delete all existing entries
case 'delete':
ilObjLanguage::_deleteLangData($this->key, false);
$ilDB->manipulate("DELETE FROM lng_modules WHERE lang_key = " . $ilDB->quote($this->key, "text"));
$to_keep = array();
break;
default:
return;
}
// process the values of the import file
$to_save = array();
foreach ($import_file_obj->getAllValues() as $key => $value) {
if (!isset($to_keep[$key])) {
$to_save[$key] = $value;
}
}
self::_saveValues($this->key, $to_save, $import_file_obj->getAllComments());
}
