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编辑当前文件:/home2/sdektunc/www/cepali/blocks/participants/block_participants.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/>.

defined('MOODLE_INTERNAL') || die();

require_once($CFG->dirroot . '/course/lib.php');

/**
 * Participants block
 *
 * @package    block_participants
 * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class block_participants extends block_list {
    function init() {
        $this->title = get_string('pluginname', 'block_participants');
    }

function get_content() {

global $CFG, $OUTPUT;

if (empty($this->instance)) {
            $this->content = '';
            return $this->content;
        }

$this->content = new stdClass();
        $this->content->items = array();
        $this->content->icons = array();
        $this->content->footer = '';

// user/index.php expect course context, so get one if page has module context.
        $currentcontext = $this->page->context->get_course_context(false);

if (empty($currentcontext)) {
            $this->content = '';
            return $this->content;
        } else if ($this->page->course->id == SITEID) {
            if (!course_can_view_participants(context_system::instance())) {
                $this->content = '';
                return $this->content;
            }
        } else {
            if (!course_can_view_participants($currentcontext)) {
                $this->content = '';
                return $this->content;
            }
        }

$icon = $OUTPUT->pix_icon('i/users', '');
        $this->content->items[] = '<a title="'.get_string('listofallpeople').'" href="'.
                                  $CFG->wwwroot.'/user/index.php?contextid='.$currentcontext->id.'">'.$icon.get_string('participants').'</a>';

return $this->content;
    }

// my moodle can only have SITEID and it's redundant here, so take it away
    function applicable_formats() {
        return array('all' => true, 'my' => false, 'tag' => false);
    }

}