Current File : //home2/vacivi36/ava/analytics/classes/admin_setting_predictor.php
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Extension to show an error message if the selected predictor is not available.
*
* @package core_analytics
* @copyright 2017 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_analytics;
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__ . '/../../lib/adminlib.php');
/**
* Extension to show an error message if the selected predictor is not available.
*
* @package core_analytics
* @copyright 2017 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class admin_setting_predictor extends \admin_setting_configselect {
/**
* Save a setting
*
* @param string $data
* @return string empty of error string
*/
public function write_setting($data) {
if (!$this->load_choices() or empty($this->choices)) {
return '';
}
if (!array_key_exists($data, $this->choices)) {
return '';
}
// Calling it here without checking if it is ready because we check it below and show it as a controlled case.
$selectedprocessor = \core_analytics\manager::get_predictions_processor($data, false);
$isready = $selectedprocessor->is_ready();
if ($isready !== true) {
return get_string('errorprocessornotready', 'analytics', $isready);
}
$currentvalue = get_config('analytics', 'predictionsprocessor');
if (!empty($currentvalue) && $currentvalue != str_replace('\\\\', '\\', $data)) {
// Clear all models data.
$models = \core_analytics\manager::get_all_models();
foreach ($models as $model) {
$model->clear();
}
}
return ($this->config_write($this->name, $data) ? '' : get_string('errorsetting', 'admin'));
}
}
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