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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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* Course breakdown.
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*
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* @package report_coursesize
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* @copyright 2017 Catalyst IT {@link http://www.catalyst.net.nz}
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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_once('../../config.php');
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require_once($CFG->libdir.'/adminlib.php');
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$courseid = required_param('id', PARAM_INT);
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admin_externalpage_setup('reportcoursesize');
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$course = $DB->get_record('course', array('id' => $courseid));
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$context = context_course::instance($course->id);
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$contextcheck = $context->path . '/%';
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$sizesql = "SELECT a.component, a.filearea, SUM(a.filesize) as filesize
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FROM (SELECT DISTINCT f.contenthash, f.component, f.filesize, f.filearea
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FROM {files} f
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JOIN {context} ctx ON f.contextid = ctx.id
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WHERE ".$DB->sql_concat('ctx.path', "'/'")." LIKE ?
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AND f.filename != '.') a
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GROUP BY a.component, a.filearea";
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$cxsizes = $DB->get_recordset_sql($sizesql, array($contextcheck));
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$coursetable = new html_table();
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$coursetable->align = array('right', 'right', 'right');
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$coursetable->head = array(get_string('plugin'), get_string('filearea', 'report_coursesize'), get_string('size'));
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$coursetable->data = array();
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foreach ($cxsizes as $cxdata) {
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$row = array();
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$row[] = $cxdata->component;
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$row[] = $cxdata->filearea;
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$row[] = display_size($cxdata->filesize);
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$coursetable->data[] = $row;
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}
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$cxsizes->close();
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// Calculate filesize shared with other courses.
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$sizesql = "SELECT SUM(filesize) FROM (SELECT DISTINCT contenthash, filesize
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FROM {files} f
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JOIN {context} ctx ON f.contextid = ctx.id
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WHERE ".$DB->sql_concat('ctx.path', "'/'")." NOT LIKE ?
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AND f.contenthash IN (SELECT DISTINCT f.contenthash
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FROM {files} f
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JOIN {context} ctx ON f.contextid = ctx.id
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WHERE ".$DB->sql_concat('ctx.path', "'/'")." LIKE ?
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AND f.filename != '.')) b";
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$size = $DB->get_field_sql($sizesql, array($contextcheck, $contextcheck));
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if (!empty($size)) {
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$size = display_size($size);
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}
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// All the processing done, the rest is just output stuff.
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print $OUTPUT->header();
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print $OUTPUT->heading(get_string('coursesize', 'report_coursesize'). " - ". format_string($course->fullname));
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print $OUTPUT->box(get_string('coursereport', 'report_coursesize'));
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if (!empty($size)) {
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print $OUTPUT->box(get_string('sharedusagecourse', 'report_coursesize', $size));
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}
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print html_writer::table($coursetable);
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print $OUTPUT->footer();
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