Proyectos de Subversion Moodle

<?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/>.

/**

 * Course list block.

 *

 * @package    block_course_list

 * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

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

class block_course_list extends block_list {

    function init() {

        $this->title = get_string('pluginname', 'block_course_list');

    }

    function has_config() {

        return true;

    }

    function get_content() {

        global $CFG, $USER, $DB, $OUTPUT;

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

            return $this->content;

        }

        $this->content = new stdClass;

        $this->content->items = array();

        $this->content->icons = array();

        $this->content->footer = '';

        $icon = $OUTPUT->pix_icon('i/course', get_string('course'));

        $adminseesall = true;

        if (isset($CFG->block_course_list_adminview)) {

           if ( $CFG->block_course_list_adminview == 'own'){

               $adminseesall = false;

           }

        }

        $allcourselink =

            (has_capability('moodle/course:update', context_system::instance())

            || empty($CFG->block_course_list_hideallcourseslink)) &&

            core_course_category::user_top();

        if (empty($CFG->disablemycourses) and isloggedin() and !isguestuser() and

          !(has_capability('moodle/course:update', context_system::instance()) and $adminseesall)) {    // Just print My Courses

            if ($courses = enrol_get_my_courses()) {

                foreach ($courses as $course) {

                    $coursecontext = context_course::instance($course->id);

                    $linkcss = $course->visible ? "" : " class=\"dimmed\" ";

                    $this->content->items[]="<a $linkcss title=\"" . format_string($course->shortname, true, array('context' => $coursecontext)) . "\" ".

                               "href=\"$CFG->wwwroot/course/view.php?id=$course->id\">".$icon.format_string(get_course_display_name_for_list($course)). "</a>";

                }

                $this->title = get_string('mycourses');

            /// If we can update any course of the view all isn't hidden, show the view all courses link

                if ($allcourselink) {

                    $this->content->footer = "<a href=\"$CFG->wwwroot/course/index.php\">".get_string("fulllistofcourses")."</a> ...";

                }

            }

            $this->get_remote_courses();

            if ($this->content->items) { // make sure we don't return an empty list

                return $this->content;

            }

        }

        // User is not enrolled in any courses, show list of available categories or courses (if there is only one category).

        $topcategory = core_course_category::top();

        if ($topcategory->is_uservisible() && ($categories = $topcategory->get_children())) { // Check we have categories.

            if (count($categories) > 1 || (count($categories) == 1 && $DB->count_records('course') > 200)) {     // Just print top level category links

                foreach ($categories as $category) {

                    $categoryname = $category->get_formatted_name();

                    $linkcss = $category->visible ? "" : " class=\"dimmed\" ";

                    $this->content->items[]="<a $linkcss href=\"$CFG->wwwroot/course/index.php?categoryid=$category->id\">".$icon . $categoryname . "</a>";

                }

            /// If we can update any course of the view all isn't hidden, show the view all courses link

                if ($allcourselink) {

                    $this->content->footer .= "<a href=\"$CFG->wwwroot/course/index.php\">".get_string('fulllistofcourses').'</a> ...';

                }

                $this->title = get_string('categories');

            } else {                          // Just print course names of single category

                $category = array_shift($categories);

                $courses = $category->get_courses();

                if ($courses) {

                    foreach ($courses as $course) {

                        $coursecontext = context_course::instance($course->id);

                        $linkcss = $course->visible ? "" : " class=\"dimmed\" ";

                        $this->content->items[]="<a $linkcss title=\""

                                   . s($course->get_formatted_shortname())."\" ".

                                   "href=\"$CFG->wwwroot/course/view.php?id=$course->id\">"

                                   .$icon. $course->get_formatted_name() . "</a>";

                    }

                /// If we can update any course of the view all isn't hidden, show the view all courses link

                    if ($allcourselink) {

                        $this->content->footer .= "<a href=\"$CFG->wwwroot/course/index.php\">".get_string('fulllistofcourses').'</a> ...';

                    }

                    $this->get_remote_courses();

                } else {

                    $this->content->icons[] = '';

                    $this->content->items[] = get_string('nocoursesyet');

                    if (has_capability('moodle/course:create', context_coursecat::instance($category->id))) {

                        $this->content->footer = '<a href="'.$CFG->wwwroot.'/course/edit.php?category='.$category->id.'">'.get_string("addnewcourse").'</a> ...';

                    }

                    $this->get_remote_courses();

                }

                $this->title = get_string('courses');

            }

        }

        return $this->content;

    }

    function get_remote_courses() {

        global $CFG, $USER, $OUTPUT;

        if (!is_enabled_auth('mnet')) {

            // no need to query anything remote related

            return;

        }

        $icon = $OUTPUT->pix_icon('i/mnethost', get_string('host', 'mnet'));

        // shortcut - the rest is only for logged in users!

        if (!isloggedin() || isguestuser()) {

            return false;

        }

        if ($courses = get_my_remotecourses()) {

            $this->content->items[] = get_string('remotecourses','mnet');

            $this->content->icons[] = '';

            foreach ($courses as $course) {

                $this->content->items[]="<a title=\"" . format_string($course->shortname, true) . "\" ".

                    "href=\"{$CFG->wwwroot}/auth/mnet/jump.php?hostid={$course->hostid}&wantsurl=/course/view.php?id={$course->remoteid}\">"

                    .$icon. format_string(get_course_display_name_for_list($course)) . "</a>";

            }

            // if we listed courses, we are done

            return true;

        }

        if ($hosts = get_my_remotehosts()) {

            $this->content->items[] = get_string('remotehosts', 'mnet');

            $this->content->icons[] = '';

            foreach($USER->mnet_foreign_host_array as $somehost) {

                $this->content->items[] = $somehost['count'].get_string('courseson','mnet').'<a title="'.$somehost['name'].'" href="'.$somehost['url'].'">'.$icon.$somehost['name'].'</a>';

            }

            // if we listed hosts, done

            return true;

        }

        return false;

    }

    /**

     * Returns the role that best describes the course list block.

     *

     * @return string

     */

    public function get_aria_role() {

        return 'navigation';

    }

    /**

     * Return the plugin config settings for external functions.

     *

     * @return stdClass the configs for both the block instance and plugin

     * @since Moodle 3.8

     */

    public function get_config_for_external() {

        global $CFG;

        // Return all settings for all users since it is safe (no private keys, etc..).

        $configs = (object) [

            'adminview' => $CFG->block_course_list_adminview,

            'hideallcourseslink' => $CFG->block_course_list_hideallcourseslink

        ];

        return (object) [

            'instance' => new stdClass(),

            'plugin' => $configs,

        ];

    }

}