index.php

<?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/>.

/**
 * Local plugin "bulkenrol" - Enrolment page
 *
 * @package   local_bulkenrol
 * @copyright 2017 Soon Systems GmbH on behalf of Alexander Bias, Ulm University <alexander.bias@uni-ulm.de>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

use local_bulkenrol\bulkenrol_form;
use local_bulkenrol\confirm_form;

require_once('../../config.php');

require_once($CFG->libdir.'/adminlib.php');
require_once($CFG->dirroot.'/local/bulkenrol/locallib.php');

global $PAGE, $OUTPUT, $SESSION;

$id = required_param('id', PARAM_INT);
$localbulkenrolkey = optional_param('key', 0, PARAM_ALPHANUMEXT);

$context = context_system::instance();

if (!empty($id)) {
    $course = $DB->get_record('course', ['id' => $id], '*', MUST_EXIST);
    $context = context_course::instance($course->id, MUST_EXIST);

    $PAGE->set_context($context);
    $PAGE->set_url('/local/bulkenrol/index.php', ['id' => $id]);
    $PAGE->set_title("$course->shortname: ".get_string('pluginname', 'local_bulkenrol'));
    $PAGE->set_heading($course->fullname);

    require_login($course);
}

if (!has_capability('local/bulkenrol:enrolusers', $context)) {
    throw new \moodle_exception('nopermissions', 'error', '', 'local/bulkenrol:enrolusers');
}

$PAGE->set_pagelayout('incourse');


if (empty($localbulkenrolkey)) {
    $form = new bulkenrol_form(null, ['courseid' => $id]);
    if ($formdata = $form->get_data()) {
        $emails = $formdata->usermails;
        $courseid = $formdata->id;

        $checkedmails = local_bulkenrol_check_user_mails($emails, $courseid);

        // Create local_bulkenrol array in Session.
        if (!isset($SESSION->local_bulkenrol)) {
            $SESSION->local_bulkenrol = [];
        }
        // Save data in Session.
        $localbulkenrolkey = $courseid.'_'.time();
        $SESSION->local_bulkenrol[$localbulkenrolkey] = $checkedmails;

        // Create local_bulkenrol_inputs array in session.
        if (!isset($SESSION->local_bulkenrol_inputs)) {
            $SESSION->local_bulkenrol_inputs = [];
        }
        $localbulkenroldata = $localbulkenrolkey.'_data';
        $SESSION->local_bulkenrol_inputs[$localbulkenroldata] = $emails;
    } else if ($form->is_cancelled()) {
        if (!empty($id)) {
            redirect($CFG->wwwroot .'/course/view.php?id='.$id, '', 0);
        } else {
            redirect($CFG->wwwroot, '', 0);
        }
    } else {
        echo $OUTPUT->header();
        echo $OUTPUT->heading(get_string('pluginname', 'local_bulkenrol'));
        echo $form->display();
        echo $OUTPUT->footer();
    }
}

if ($localbulkenrolkey) {
    $form2 = new confirm_form(null, ['local_bulkenrol_key' => $localbulkenrolkey, 'courseid' => $id]);

    if ($formdata = $form2->get_data()) {
        if (!empty($localbulkenrolkey) && !empty($SESSION->local_bulkenrol) &&
                array_key_exists($localbulkenrolkey, $SESSION->local_bulkenrol)) {
            set_time_limit(600);

            $msg = local_bulkenrol_users($localbulkenrolkey);

            if ($msg->status == 'error') {
                redirect($CFG->wwwroot .'/user/index.php?id='.$id, "$msg->text", null, \core\output\notification::NOTIFY_ERROR);
            } else {
                redirect($CFG->wwwroot .'/user/index.php?id='.$id, "$msg->text", null, \core\output\notification::NOTIFY_SUCCESS);
            }

        } else {
            redirect($CFG->wwwroot .'/local/bulkenrol/index.php?id='.$id, '', 0);
        }
    } else if ($form2->is_cancelled()) {
        redirect($CFG->wwwroot .'/local/bulkenrol/index.php?id='.$id, '', 0);
    } else {
        $PAGE->set_url('/local/bulkenrol/index.php', ['id' => $id]);

        echo $OUTPUT->header();
        echo $OUTPUT->heading(get_string('pluginname', 'local_bulkenrol'));
        if (!empty($localbulkenrolkey) && !empty($SESSION->local_bulkenrol) &&
                array_key_exists($localbulkenrolkey, $SESSION->local_bulkenrol)) {
            $localbulkenroldata = $SESSION->local_bulkenrol[$localbulkenrolkey];

            if (!empty($localbulkenroldata)) {
                local_bulkenrol_display_table($localbulkenroldata, LOCALBULKENROL_HINT);
                local_bulkenrol_display_table($localbulkenroldata, LOCALBULKENROL_GROUPINFOS);
                local_bulkenrol_display_table($localbulkenroldata, LOCALBULKENROL_ENROLUSERS);
            }
        }

        // Show notification if there aren't any valid email addresses to enrol.
        if (!empty($localbulkenroldata) && isset($localbulkenroldata->validemailfound) &&
                empty($localbulkenroldata->validemailfound)) {
            $a = new stdClass();
            $url = new \core\url('/local/bulkenrol/index.php', ['id' => $id, 'editlist' => $localbulkenrolkey]);
            $a->url = $url->out();
            $notification = new \core\output\notification(
                    get_string('error_no_valid_email_in_list', 'local_bulkenrol', $a),
                    \core\output\notification::NOTIFY_WARNING);
            $notification->set_show_closebutton(false);
            echo $OUTPUT->render($notification);


            // Otherwise show the enrolment details and the form with the enrol users button.
        } else {
            local_bulkenrol_display_enroldetails();
            echo $form2->display();
        }

        echo $OUTPUT->footer();
    }
}