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<?php
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// This file is part of Moodle - https://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Provides the {@link \core_analytics\stats} class.
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*
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* @package core_analytics
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* @copyright 2019 David Mudrák <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core_analytics;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Provides stats and meta information about the analytics usage on this site.
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*
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* @copyright 2019 David Mudrák <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class stats {
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/**
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* Return the number of models enabled on this site.
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*
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* @return int
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*/
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public static function enabled_models(): int {
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return count(manager::get_all_models(true));
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}
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/**
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* Return the number of predictions generated by the system.
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*
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* @return int
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*/
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public static function predictions(): int {
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global $DB;
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return $DB->count_records('analytics_predictions');
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}
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/**
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* Return the number of suggested actions executed by users.
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*
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* @return int
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*/
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public static function actions(): int {
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global $DB;
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return $DB->count_records('analytics_prediction_actions');
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}
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/**
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* Return the number of suggested actions flagged as not useful.
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*
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* @return int
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*/
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public static function actions_not_useful(): int {
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global $DB;
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// Simple version using core's TYPE_NEGATIVE actions.
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return $DB->count_records_select('analytics_prediction_actions',
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'actionname = :notuseful OR actionname = :incorrectlyflagged',
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['notuseful' => prediction::ACTION_NOT_USEFUL, 'incorrectlyflagged' => prediction::ACTION_INCORRECTLY_FLAGGED]);
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}
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}
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