C:/xampp/htdocs/moodle/grade/import/grade_import_form.php

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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/>.

if (!defined('MOODLE_INTERNAL')) {
    die('Direct access to this script is forbidden.');    
}

require_once $CFG->libdir.'/formslib.php';
require_once($CFG->libdir.'/gradelib.php');

class grade_import_form extends moodleform {
    function definition (){
        global $COURSE;

        $mform =& $this->_form;

        if (isset($this->_customdata)) {  // hardcoding plugin names here is hacky
            $features = $this->_customdata;
        } else {
            $features = array();
        }

        // course id needs to be passed for auth purposes
        $mform->addElement('hidden', 'id', optional_param('id', 0, PARAM_INT));
        $mform->setType('id', PARAM_INT);
        $mform->addElement('header', 'general', get_string('importfile', 'grades'));
        // file upload
        $mform->addElement('filepicker', 'userfile', get_string('file'));
        $mform->addRule('userfile', null, 'required');
        $textlib = textlib_get_instance();
        $encodings = $textlib->get_encodings();
        $mform->addElement('select', 'encoding', get_string('encoding', 'grades'), $encodings);

        if (!empty($features['includeseparator'])) {
            $radio = array();
            $radio[] = &MoodleQuickForm::createElement('radio', 'separator', null, get_string('septab', 'grades'), 'tab');
            $radio[] = &MoodleQuickForm::createElement('radio', 'separator', null, get_string('sepcomma', 'grades'), 'comma');
            $mform->addGroup($radio, 'separator', get_string('separator', 'grades'), ' ', false);
            $mform->setDefault('separator', 'comma');
        }

        if (!empty($features['verbosescales'])) {
            $options = array(1=>get_string('yes'), 0=>get_string('no'));
            $mform->addElement('select', 'verbosescales', get_string('verbosescales', 'grades'), $options);
        }

        $options = array('10'=>10, '20'=>20, '100'=>100, '1000'=>1000, '100000'=>100000);
        $mform->addElement('select', 'previewrows', get_string('rowpreviewnum', 'grades'), $options); // TODO: localize
        $mform->setType('previewrows', PARAM_INT);
        $mform->addElement('hidden', 'groupid', groups_get_course_group($COURSE));
        $mform->setType('groupid', PARAM_INT);
        $this->add_action_buttons(false, get_string('uploadgrades', 'grades'));
    }
}

class grade_import_mapping_form extends moodleform {

    function definition () {
        global $CFG, $COURSE;
        $mform =& $this->_form;

        // this is an array of headers
        $header = $this->_customdata['header'];
        // course id

        $mform->addElement('header', 'general', get_string('identifier', 'grades'));
        $mapfromoptions = array();

        if ($header) {
            foreach ($header as $i=>$h) {
                $mapfromoptions[$i] = s($h);
            }
        }
        $mform->addElement('select', 'mapfrom', get_string('mapfrom', 'grades'), $mapfromoptions);

        $maptooptions = array('userid'=>'userid', 'username'=>'username', 'useridnumber'=>'useridnumber', 'useremail'=>'useremail', '0'=>'ignore');
        $mform->addElement('select', 'mapto', get_string('mapto', 'grades'), $maptooptions);

        $mform->addElement('header', 'general', get_string('mappings', 'grades'));

        // add a comment option

        $comments = array();
        if ($gradeitems = $this->_customdata['gradeitems']) {
            foreach ($gradeitems as $itemid => $itemname) {
                $comments['feedback_'.$itemid] = 'comments for '.$itemname;
            }
        }

        if ($header) {
            $i = 0; // index
            foreach ($header as $h) {
                $h = trim($h);
                // this is what each header maps to
                $mform->addElement('selectgroups', 'mapping_'.$i, s($h),
                    array('others'=>array('0'=>'ignore', 'new'=>'new gradeitem'),
                    'gradeitems'=>$gradeitems,
                    'comments'=>$comments));
                $i++;
            }
        }

        // course id needs to be passed for auth purposes
        $mform->addElement('hidden', 'map', 1);
        $mform->setType('map', PARAM_INT);
        $mform->addElement('hidden', 'id');
        $mform->setType('id', PARAM_INT);
        $mform->addElement('hidden', 'importcode');
        $mform->setType('importcode', PARAM_FILE);
        $mform->addElement('hidden', 'verbosescales', 1);
        $mform->setType('separator', PARAM_ALPHA);
        $mform->addElement('hidden', 'separator', 'comma');
        $mform->setType('verbosescales', PARAM_INT);
        $mform->addElement('hidden', 'groupid', groups_get_course_group($COURSE));
        $mform->setType('groupid', PARAM_INT);
        $this->add_action_buttons(false, get_string('uploadgrades', 'grades'));

    }
}