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<?php
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// This file is part of Moodle - http://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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*
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* @package report
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* @subpackage coursestats
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* @copyright 2017 Paulo Jr.
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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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require(dirname(__FILE__).'/../../config.php');
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require_once($CFG->libdir.'/adminlib.php');
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require(__DIR__. '/constants.php');
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function get_amount_created_courses($category) {
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global $DB;
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if ($category == ALL_CATEGORIES) {
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return ($DB->count_records(COURSE_TABLE_NAME,
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array('visible'=>'1')) - 1);
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} else {
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return $DB->count_records(COURSE_TABLE_NAME,
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array('visible'=>'1', 'category'=>$category));
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}
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}
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function get_amount_used_courses($category) {
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global $DB;
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if ($category == ALL_CATEGORIES) {
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return $DB->count_records_sql('SELECT COUNT(*) FROM {report_coursestats} cs JOIN {course} co ON co.id = cs.courseid WHERE co.visible = :visible',
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array('visible'=>'1'));
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} else {
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return $DB->count_records_sql('SELECT COUNT(*) FROM {report_coursestats} cs JOIN {course} co ON co.id = cs.courseid WHERE co.category = :cat AND co.visible = :visible',
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array('cat'=>$category, 'visible'=>'1'));
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}
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}
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header('Content-Type: application/excel');
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header('Content-Disposition: attachment; filename="sample.csv"');
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$fp = fopen('php://output', 'w');
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$head = array(get_string('lb_category', 'report_coursestats'), get_string('lb_courses_created_amount', 'report_coursestats'),
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get_string('lb_used_courses', 'report_coursestats'), get_string('lb_percent_of_used_courses', 'report_coursestats'));
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fputcsv($fp, $head);
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$result = $DB->get_records(COURSE_CATEGORIES_TABLE_NAME, null, 'name');
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// All categories
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$co_created = get_amount_created_courses(ALL_CATEGORIES);
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$co_used = get_amount_used_courses(ALL_CATEGORIES);
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if ($co_created > 0) {
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$co_percent = number_format(($co_used / $co_created) * 100, 2);
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} else {
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$co_percent = '-';
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}
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$catdata = array(get_string('lb_all_categories', 'report_coursestats'), $co_created, $co_used, $co_percent);
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fputcsv($fp, $catdata);
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// For each category
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$cat_array = array();
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$created_courses_array = array();
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$used_courses_array = array();
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$percentage_used_courses_array = array();
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foreach ($result as $cs) {
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$co_created = get_amount_created_courses($cs->id);
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$co_used = get_amount_used_courses($cs->id);
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$cat_array[] = $cs->name;
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$created_courses_array[] = $co_created;
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$used_courses_array[] = $co_used;
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if ($co_created > 0) {
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$co_percent = number_format(($co_used / $co_created) * 100, 2);
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$percentage_used_courses_array[] = number_format(($co_used / $co_created) * 100, 2);
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} else {
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$co_percent = '0';
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$percentage_used_courses_array[] = 0;
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}
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$catdata = array($cs->name, $co_created, $co_used, $co_percent);
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fputcsv($fp, $catdata);
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}
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fclose($fp);
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