moodle/blocks/admin/block_admin.php

<?php //$Id$

class block_admin extends block_base {
    function init() {
        $this->title = get_string('administration');
        $this->content_type = BLOCK_TYPE_LIST;
        $this->version = 2004081200;
    }

    function get_content() {

        if($this->content !== NULL) {
            return $this->content;
        }

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

        if (empty($this->instance)) {
            $this->content = '';
        } else if ($this->instance->pageid == SITEID) {
            $this->load_content_for_site();
        } else {
            $this->load_content_for_course();
        }

        return $this->content;
    }


    function load_content_for_site() {
        global $CFG, $USER;

        if (isadmin()) {
            $this->content->items[] = '<a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/configure.php">'.get_string('configuration').'</a>...';
            $this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/admin.gif" height="16" width="16" alt="" />';

            $this->content->items[] = '<a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/users.php">'.get_string('users').'</a>...';
            $this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/users.gif" height="16" width="16" alt="" />';

            $this->content->items[]='<a href="'.$CFG->wwwroot.'/backup/backup.php?id='.SITEID.'">'.get_string('backup').'...</a>';
            $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/backup.gif" height="16" width="16" alt="" />';

            $this->content->items[]='<a href="'.$CFG->wwwroot.'/files/index.php?id='.SITEID.'&amp;wdir=/backupdata">'.get_string('restore').'...</a>';
            $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/restore.gif" height="16" width="16" alt="" />';
        }

        if (iscreator()) {
            $this->content->items[] = '<a href="'.$CFG->wwwroot.'/course/index.php?edit=on&amp;sesskey='.$USER->sesskey.'">'.get_string('courses').'</a>';
            $this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/course.gif" height="16" width="16" alt="" />';
        }

        if (isadmin()) {
            $this->content->items[] = '<a href="'.$CFG->wwwroot.'/course/log.php?id='.SITEID.'">'.get_string('logs').'</a>';
            $this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/log.gif" height="16" width="16" alt="" />';

            $this->content->items[] = '<a href="'.$CFG->wwwroot.'/files/index.php?id='.SITEID.'">'.get_string('sitefiles').'</a>';
            $this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/files.gif" height="16" width="16" alt="" />';

            if (file_exists($CFG->dirroot.'/'.$CFG->admin.'/'.$CFG->dbtype)) {
                $this->content->items[] = '<a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/'.$CFG->dbtype.'/frame.php">'.get_string('managedatabase').'</a>';
                $this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/db.gif" height="16" width="16" alt="" />';
            }
            $this->content->footer = '<a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/">'.get_string('admin').'</a>...';
        }
    }

    function load_content_for_course() {
        global $CFG, $USER;

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

        if (isguest()) {
            return $this->content;
        }

        $course = get_record('course', 'id', $this->instance->pageid);

        if (isteacher($this->instance->pageid)) {

            $isteacheredit = isteacheredit($this->instance->pageid);

            if ($isteacheredit) {
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/edit.gif" height="16" width="16" alt="" />';
                if (isediting($this->instance->pageid)) {
                    $this->content->items[]='<a href="view.php?id='.$this->instance->pageid.'&amp;edit=off">'.get_string('turneditingoff').'</a>';
                } else {
                    $this->content->items[]='<a href="view.php?id='.$this->instance->pageid.'&amp;edit=on">'.get_string('turneditingon').'</a>';
                }
                $this->content->items[]='<a href="edit.php?id='.$this->instance->pageid.'">'.get_string('settings').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/settings.gif" height="16" width="16" alt="" />';

                if (iscreator() || !empty($CFG->teacherassignteachers)) {
                    if (!$course->teachers) {
                        $course->teachers = get_string('defaultcourseteachers');
                    }
                    $this->content->items[]='<a href="teacher.php?id='.$this->instance->pageid.'">'.$course->teachers.'...</a>';
                    $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/users.gif" height="16" width="16" alt="" />';
                }

                if (!$course->students) {
                    $course->students = get_string('defaultcoursestudents');
                }
                $this->content->items[]='<a href="student.php?id='.$this->instance->pageid.'">'.$course->students.'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/users.gif" height="16" width="16" alt="" />';

                $this->content->items[]='<a href="'.$CFG->wwwroot.'/backup/backup.php?id='.$this->instance->pageid.'">'.get_string('backup').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/backup.gif" height="16" width="16" alt="" />';

                $this->content->items[]='<a href="'.$CFG->wwwroot.'/files/index.php?id='.$this->instance->pageid.'&amp;wdir=/backupdata">'.get_string('restore').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/restore.gif" height="16" width="16" alt="" />';
                $this->content->items[]='<a href="scales.php?id='.$this->instance->pageid.'">'.get_string('scales').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/scales.gif" height="16" width="16" alt="" />';
            }

            $this->content->items[]='<a href="grades.php?id='.$this->instance->pageid.'">'.get_string('grades').'...</a>';
            $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/grades.gif" height="16" width="16" alt="" />';

            $this->content->items[]='<a href="log.php?id='.$this->instance->pageid.'">'.get_string('logs').'...</a>';
            $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/log.gif" height="16" width="16" alt="" />';

            if ($isteacheredit) {
                $this->content->items[]='<a href="'.$CFG->wwwroot.'/files/index.php?id='.$this->instance->pageid.'">'.get_string('files').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/files.gif" height="16" width="16" alt="" />';
            }

            $this->content->items[]='<a href="'.$CFG->wwwroot.'/doc/view.php?id='.$this->instance->pageid.'&amp;file=teacher.html">'.get_string('help').'...</a>';
            $this->content->icons[]='<img src="'.$CFG->modpixpath.'/resource/icon.gif" height="16" width="16" alt="" />';

            if ($teacherforum = forum_get_course_forum($this->instance->pageid, 'teacher')) {
                $this->content->items[]='<a href="'.$CFG->wwwroot.'/mod/forum/view.php?f='.$teacherforum->id.'">'.get_string('nameteacher', 'forum').'</a>';
                $this->content->icons[]='<img src="'.$CFG->modpixpath.'/forum/icon.gif" height="16" width="16" alt="" />';
            }

        } else if (!isguest()) {  // Students menu

            if ($course->showgrades) {
                $this->content->items[]='<a href="grade.php?id='.$this->instance->pageid.'">'.get_string('grades').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/grades.gif" height="16" width="16" alt="" />';
            }
            if ($course->showreports) {
                $this->content->items[]='<a href="user.php?id='.$this->instance->pageid.'&amp;user='.$USER->id.'">'.get_string('activityreport').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/report.gif" height="16" width="16" alt="" />';
            }
            if (is_internal_auth()) {
                $this->content->items[]='<a href="'.$CFG->wwwroot.'/login/change_password.php?id='.$this->instance->pageid.'">'.get_string('changepassword').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" height="16" width="16" alt="" />';
            } else if ($CFG->changepassword) {
                $this->content->items[]='<a href="'.$CFG->changepassword.'">'.get_string('changepassword').'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" height="16" width="16" alt="" />';
            }
            if ($CFG->allowunenroll) {
                $this->content->items[]='<a href="unenrol.php?id='.$this->instance->pageid.'">'.get_string('unenrolme', '', $course->shortname).'...</a>';
                $this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" height="16" width="16" alt="" />';
            }
        }
    }
}

?>