/**
* modify an existing list
* this function is registered in xajax
* @todo this function uses a query to alter table
* @param string $former_title former title of this list
* @param string $title title of the new list
* @param string $description description of the new list
* @param array $new_definition_values new definition of current list that is to be modified
* @param string $old_definition_str definition of current list that is to be modified
* @return xajaxResponse every xajax registered function needs to return this object
*/
function action_modify_list($former_title, $title, $description, $new_definition_values)
{
global $database;
global $logging;
global $user;
global $list_table_description;
global $user_start_time_array;
$logging->info("USER_ACTION " . __METHOD__ . " (user="******", former_title={$former_title}, title={$title})");
# store start time
$user_start_time_array[__METHOD__] = microtime(TRUE);
# create necessary objects
$response = new xajaxResponse();
$json = new Services_JSON();
$list_table = new ListTable($former_title);
if ($list_table->get_is_valid() == FALSE) {
$logging->warn("create list object returns false");
$error_message_str = $list_table->get_error_message_str();
$error_log_str = $list_table->get_error_log_str();
$error_str = $list_table->get_error_str();
set_error_message("action_bar_button_modify", "above", $error_message_str, $error_log_str, $error_str, $response);
return $response;
}
$list_table_note = $list_table->get_list_table_note();
# check if title and description have been given
if (!check_title_and_description($title, $description, $response)) {
return $response;
}
# check if the new definition is correct
$new_definition = check_definition($new_definition_values, $response);
if (count($new_definition) == 0) {
return $response;
}
# transform listtable (with new definition which contains id's)
if ($list_table->transform($former_title, $title, $description, $new_definition) == FALSE) {
$logging->warn("transform list returns false");
$error_message_str = $list_table->get_error_message_str();
$error_log_str = $list_table->get_error_log_str();
$error_str = $list_table->get_error_str();
set_error_message("action_bar_button_modify", "above", $error_message_str, $error_log_str, $error_str, $response);
return $response;
}
# reset current list name only when name of active list has been changed
if ($former_title != $title && $former_title == $user->get_current_list_name()) {
$user->set_current_list_name("");
}
set_info_message("action_bar_button_modify", "above", "LABEL_LIST_MODIFICATIONS_DONE", $response);
# log total time for this function
$logging->info(get_function_time_str(__METHOD__));
return $response;
}