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<?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/>.
/**
* Exports selected outcomes in CSV format
*
* @package core_grades
* @copyright 2008 Moodle Pty Ltd (http://moodle.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once '../../../config.php';
require_once $CFG->dirroot.'/grade/lib.php';
require_once $CFG->libdir.'/gradelib.php';
$courseid = optional_param('id', 0, PARAM_INT);
$action = optional_param('action', '', PARAM_ALPHA);
/// Make sure they can even access this course
if ($courseid) {
if (!$course = $DB->get_record('course', array('id' => $courseid))) {
print_error('nocourseid');
}
require_login($course);
$context = context_course::instance($course->id);
require_capability('moodle/grade:manage', $context);
if (empty($CFG->enableoutcomes)) {
redirect('../../index.php?id='.$courseid);
}
} else {
require_once $CFG->libdir.'/adminlib.php';
admin_externalpage_setup('outcomes');
}
require_sesskey();
header("Content-Type: text/csv; charset=utf-8");
// TODO: make the filename more useful, include a date, a specific name, something...
header('Content-Disposition: attachment; filename=outcomes.csv');
// sending header with clear names, to make 'what is what' as easy as possible to understand
$header = array('outcome_name', 'outcome_shortname', 'outcome_description', 'scale_name', 'scale_items', 'scale_description');
echo format_csv($header, ';', '"');
$outcomes = array();
if ( $courseid ) {
$outcomes = array_merge(grade_outcome::fetch_all_global(), grade_outcome::fetch_all_local($courseid));
} else {
$outcomes = grade_outcome::fetch_all_global();
}
foreach($outcomes as $outcome) {
$line = array();
$line[] = $outcome->get_name();
$line[] = $outcome->get_shortname();
$line[] = $outcome->get_description();
$scale = $outcome->load_scale();
$line[] = $scale->get_name();
$line[] = $scale->compact_items();
$line[] = $scale->get_description();
echo format_csv($line, ';', '"');
}
/**
* Formats and returns a line of data, in CSV format. This code
* is from http://au2.php.net/manual/en/function.fputcsv.php#77866
*
* @params array-of-string $fields data to be exported
* @params char $delimiter char to be used to separate fields
* @params char $enclosure char used to enclose strings that contains newlines, spaces, tabs or the delimiter char itself
* @returns string one line of csv data
*/
function format_csv($fields = array(), $delimiter = ';', $enclosure = '"') {
$str = '';
$escape_char = '\\';
foreach ($fields as $value) {
if (strpos($value, $delimiter) !== false ||
strpos($value, $enclosure) !== false ||
strpos($value, "\n") !== false ||
strpos($value, "\r") !== false ||
strpos($value, "\t") !== false ||
strpos($value, ' ') !== false) {
$str2 = $enclosure;
$escaped = 0;
$len = strlen($value);
for ($i=0;$i<$len;$i++) {
if ($value[$i] == $escape_char) {
$escaped = 1;
} else if (!$escaped && $value[$i] == $enclosure) {
$str2 .= $enclosure;
} else {
$escaped = 0;
}
$str2 .= $value[$i];
}
$str2 .= $enclosure;
$str .= $str2.$delimiter;
} else {
$str .= $value.$delimiter;
}
}
$str = substr($str,0,-1);
$str .= "\n";
return $str;
}
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