PHP forum_get_course_forum函数代码示例

function FN_update_course($form, $oldformat = false)
{
    global $CFG;
    /// Updates course specific variables.
    /// Variables are: 'showsection0', 'showannouncements'.
    $config_vars = array('showsection0', 'showannouncements', 'sec0title', 'showhelpdoc', 'showclassforum', 'showclasschat', 'logo', 'mycourseblockdisplay', 'showgallery', 'gallerydefault', 'usesitegroups', 'mainheading', 'topicheading', 'activitytracking', 'ttmarking', 'ttgradebook', 'ttdocuments', 'ttstaff', 'defreadconfirmmess', 'usemandatory', 'expforumsec');
    foreach ($config_vars as $config_var) {
        if ($varrec = get_record('course_config_FN', 'courseid', $form->id, 'variable', $config_var)) {
            $varrec->value = $form->{$config_var};
            update_record('course_config_FN', $varrec);
        } else {
            $varrec->courseid = $form->id;
            $varrec->variable = $config_var;
            $varrec->value = $form->{$config_var};
            insert_record('course_config_FN', $varrec);
        }
    }
    /// We need to have the sections created ahead of time for the weekly nav to work,
    /// so check and create here.
    if (!($sections = get_all_sections($form->id))) {
        $sections = array();
    }
    for ($i = 0; $i <= $form->numsections; $i++) {
        if (empty($sections[$i])) {
            $section = new Object();
            $section->course = $form->id;
            // Create a new section structure
            $section->section = $i;
            $section->summary = "";
            $section->visible = 1;
            if (!($section->id = insert_record("course_sections", $section))) {
                notify("Error inserting new section!");
            }
        }
    }
    /// Check for a change to an FN format. If so, set some defaults as well...
    if ($oldformat != 'FN') {
        /// Set the news (announcements) forum to no force subscribe, and no posts or discussions.
        require_once $CFG->dirroot . '/mod/forum/lib.php';
        $news = forum_get_course_forum($form->id, 'news');
        $news->open = 0;
        $news->forcesubscribe = 0;
        update_record('forum', $news);
    }
    rebuild_course_cache($form->id);
}

function FN_update_course($form, $oldformat = false, $resubmission = false)
{
    global $CFG, $DB, $OUTPUT;
    $config_vars = array('showsection0', 'sec0title', 'mainheading', 'topicheading', 'maxtabs');
    foreach ($config_vars as $config_var) {
        if ($varrec = $DB->get_record('course_config_fn', array('courseid' => $form->id, 'variable' => $config_var))) {
            $varrec->value = $form->{$config_var};
            $DB->update_record('course_config_fn', $varrec);
        } else {
            $varrec->courseid = $form->id;
            $varrec->variable = $config_var;
            $varrec->value = $form->{$config_var};
            $DB->insert_record('course_config_fn', $varrec);
        }
    }
    /// We need to have the sections created ahead of time for the weekly nav to work,
    /// so check and create here.
    if (!($sections = get_all_sections($form->id))) {
        $sections = array();
    }
    for ($i = 0; $i <= $form->numsections; $i++) {
        if (empty($sections[$i])) {
            $section = new Object();
            $section->course = $form->id;
            // Create a new section structure
            $section->section = $i;
            $section->summary = "";
            $section->visible = 1;
            if (!($section->id = $DB->insert_record("course_sections", $section))) {
                $OUTPUT->notification("Error inserting new section!");
            }
        }
    }
    /// Check for a change to an FN format. If so, set some defaults as well...
    if ($oldformat != 'FN') {
        /// Set the news (announcements) forum to no force subscribe, and no posts or discussions.
        require_once $CFG->dirroot . '/mod/forum/lib.php';
        $news = forum_get_course_forum($form->id, 'news');
        $news->open = 0;
        $news->forcesubscribe = 0;
        $DB->update_record('forum', $news);
    }
    rebuild_course_cache($form->id);
}

 /**
  * Append a news activity to the given course.
  *
  * @param  stdClass $course        The course to apply to.
  */
 public function add_to_course($course)
 {
     global $DB;
     $forum = forum_get_course_forum($course->id, 'news');
     $data = $this->target->get_datatype()->get_data();
     if (empty($data)) {
         return;
     }
     // Set some extra vars.
     if (isset($data->intro)) {
         $DB->set_field('forum', 'intro', $data->intro, array('id' => $forum->id));
     }
     if (isset($data->showdescription)) {
         $cm = get_coursemodule_from_instance('forum', $forum->id, $course->id);
         if ($cm) {
             $DB->set_field('course_modules', 'showdescription', $data->showdescription, array('id' => $cm->id));
         }
     }
 }

         print_box_end();
     }
 }
 if (isloggedin() and !isguest() and isset($CFG->frontpageloggedin)) {
     $frontpagelayout = $CFG->frontpageloggedin;
 } else {
     $frontpagelayout = $CFG->frontpage;
 }
 foreach (explode(',', $frontpagelayout) as $v) {
     switch ($v) {
         /// Display the main part of the front page.
         case FRONTPAGENEWS:
             if ($SITE->newsitems) {
                 // Print forums only when needed
                 require_once $CFG->dirroot . '/mod/forum/lib.php';
                 if (!($newsforum = forum_get_course_forum($SITE->id, 'news'))) {
                     error('Could not find or create a main news forum for the site');
                 }
                 if (!empty($USER->id)) {
                     $SESSION->fromdiscussion = $CFG->wwwroot;
                     $subtext = '';
                     if (forum_is_subscribed($USER->id, $newsforum)) {
                         if (!forum_is_forcesubscribed($newsforum)) {
                             $subtext = get_string('unsubscribe', 'forum');
                         }
                     } else {
                         $subtext = get_string('subscribe', 'forum');
                     }
                     print_heading_block($newsforum->name);
                     echo '<div class="subscribelink"><a href="mod/forum/subscribe.php?id=' . $newsforum->id . '">' . $subtext . '</a></div>';
                 } else {

 function get_content()
 {
     global $CFG, $USER;
     if ($this->content !== NULL) {
         return $this->content;
     }
     $this->content = new stdClass();
     $this->content->text = '';
     $this->content->footer = '';
     if (empty($this->instance)) {
         return $this->content;
     }
     if ($this->page->course->newsitems) {
         // Create a nice listing of recent postings
         require_once $CFG->dirroot . '/mod/forum/lib.php';
         // We'll need this
         $text = '';
         if (!($forum = forum_get_course_forum($this->page->course->id, 'news'))) {
             return '';
         }
         $modinfo = get_fast_modinfo($this->page->course);
         if (empty($modinfo->instances['forum'][$forum->id])) {
             return '';
         }
         $cm = $modinfo->instances['forum'][$forum->id];
         if (!$cm->uservisible) {
             return '';
         }
         $context = context_module::instance($cm->id);
         /// User must have perms to view discussions in that forum
         if (!has_capability('mod/forum:viewdiscussion', $context)) {
             return '';
         }
         /// First work out whether we can post to this group and if so, include a link
         $groupmode = groups_get_activity_groupmode($cm);
         $currentgroup = groups_get_activity_group($cm, true);
         if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
             $text .= '<div class="newlink"><a href="' . $CFG->wwwroot . '/mod/forum/post.php?forum=' . $forum->id . '">' . get_string('addanewtopic', 'forum') . '</a>...</div>';
         }
         /// Get all the recent discussions we're allowed to see
         if (!($discussions = forum_get_discussions($cm, 'p.modified DESC', false, $currentgroup, $this->page->course->newsitems))) {
             $text .= '(' . get_string('nonews', 'forum') . ')';
             $this->content->text = $text;
             return $this->content;
         }
         /// Actually create the listing now
         $strftimerecent = get_string('strftimerecent');
         $strmore = get_string('more', 'forum');
         /// Accessibility: markup as a list.
         $text .= "\n<ul class='unlist'>\n";
         foreach ($discussions as $discussion) {
             $discussion->subject = $discussion->name;
             $discussion->subject = format_string($discussion->subject, true, $forum->course);
             $text .= '<li class="post">' . '<div class="head clearfix">' . '<div class="date">' . userdate($discussion->modified, $strftimerecent) . '</div>' . '<div class="name">' . fullname($discussion) . '</div></div>' . '<div class="info"><a href="' . $CFG->wwwroot . '/mod/forum/discuss.php?d=' . $discussion->discussion . '">' . $discussion->subject . '</a></div>' . "</li>\n";
         }
         $text .= "</ul>\n";
         $this->content->text = $text;
         $this->content->footer = '<a href="' . $CFG->wwwroot . '/mod/forum/view.php?f=' . $forum->id . '">' . get_string('oldertopics', 'forum') . '</a> ...';
         /// If RSS is activated at site and forum level and this forum has rss defined, show link
         if (isset($CFG->enablerssfeeds) && isset($CFG->forum_enablerssfeeds) && $CFG->enablerssfeeds && $CFG->forum_enablerssfeeds && $forum->rsstype && $forum->rssarticles) {
             require_once $CFG->dirroot . '/lib/rsslib.php';
             // We'll need this
             if ($forum->rsstype == 1) {
                 $tooltiptext = get_string('rsssubscriberssdiscussions', 'forum');
             } else {
                 $tooltiptext = get_string('rsssubscriberssposts', 'forum');
             }
             if (!isloggedin()) {
                 $userid = $CFG->siteguest;
             } else {
                 $userid = $USER->id;
             }
             $this->content->footer .= '<br />' . rss_get_link($context->id, $userid, 'mod_forum', $forum->id, $tooltiptext);
         }
     }
     return $this->content;
 }

function main_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($oldversion == 0) {
        execute_sql("\n          CREATE TABLE `config` (\n            `id` int(10) unsigned NOT NULL auto_increment,\n            `name` varchar(255) NOT NULL default '',\n            `value` varchar(255) NOT NULL default '',\n            PRIMARY KEY  (`id`),\n            UNIQUE KEY `name` (`name`)\n          ) COMMENT='Moodle configuration variables';");
        notify("Created a new table 'config' to hold configuration data");
    }
    if ($oldversion < 2002073100) {
        execute_sql(" DELETE FROM `modules` WHERE `name` = 'chat' ");
    }
    if ($oldversion < 2002080200) {
        execute_sql(" ALTER TABLE `modules` DROP `fullname`  ");
        execute_sql(" ALTER TABLE `modules` DROP `search`  ");
    }
    if ($oldversion < 2002080300) {
        execute_sql(" ALTER TABLE `log_display` CHANGE `table` `mtable` VARCHAR( 20 ) NOT NULL ");
        execute_sql(" ALTER TABLE `user_teachers` CHANGE `authority` `authority` TINYINT( 3 ) DEFAULT '3' NOT NULL ");
    }
    if ($oldversion < 2002082100) {
        execute_sql(" ALTER TABLE `course` CHANGE `guest` `guest` TINYINT(2) UNSIGNED DEFAULT '0' NOT NULL ");
    }
    if ($oldversion < 2002082101) {
        execute_sql(" ALTER TABLE `user` ADD `maildisplay` TINYINT(2) UNSIGNED DEFAULT '2' NOT NULL AFTER `mailformat` ");
    }
    if ($oldversion < 2002090100) {
        execute_sql(" ALTER TABLE `course_sections` CHANGE `summary` `summary` TEXT NOT NULL ");
    }
    if ($oldversion < 2002090701) {
        execute_sql(" ALTER TABLE `user_teachers` CHANGE `authority` `authority` TINYINT( 10 ) DEFAULT '3' NOT NULL ");
        execute_sql(" ALTER TABLE `user_teachers` ADD `role` VARCHAR(40) NOT NULL AFTER `authority` ");
    }
    if ($oldversion < 2002090800) {
        execute_sql(" ALTER TABLE `course` ADD `teachers` VARCHAR( 100 ) DEFAULT 'Teachers' NOT NULL AFTER `teacher` ");
        execute_sql(" ALTER TABLE `course` ADD `students` VARCHAR( 100 ) DEFAULT 'Students' NOT NULL AFTER `student` ");
    }
    if ($oldversion < 2002091000) {
        execute_sql(" ALTER TABLE `user` CHANGE `personality` `secret` VARCHAR( 15 ) NOT NULL DEFAULT ''  ");
    }
    if ($oldversion < 2002091400) {
        execute_sql(" ALTER TABLE `user` ADD `lang` VARCHAR( 3 ) DEFAULT 'en' NOT NULL AFTER `country`  ");
    }
    if ($oldversion < 2002091900) {
        notify("Most Moodle configuration variables have been moved to the database and can now be edited via the admin page.");
        notify("Although it is not vital that you do so, you might want to edit <U>config.php</U> and remove all the unused settings (except the database, URL and directory definitions).  See <U>config-dist.php</U> for an example of how your new slim config.php should look.");
    }
    if ($oldversion < 2002092000) {
        execute_sql(" ALTER TABLE `user` CHANGE `lang` `lang` VARCHAR(5) DEFAULT 'en' NOT NULL  ");
    }
    if ($oldversion < 2002092100) {
        execute_sql(" ALTER TABLE `user` ADD `deleted` TINYINT(1) UNSIGNED DEFAULT '0' NOT NULL AFTER `confirmed` ");
    }
    if ($oldversion < 2002101001) {
        execute_sql(" ALTER TABLE `user` ADD `htmleditor` TINYINT(1) UNSIGNED DEFAULT '1' NOT NULL AFTER `maildisplay` ");
    }
    if ($oldversion < 2002101701) {
        execute_sql(" ALTER TABLE `reading` RENAME `resource` ");
        // Small line with big consequences!
        execute_sql(" DELETE FROM `log_display` WHERE module = 'reading'");
        execute_sql(" INSERT INTO log_display (module, action, mtable, field) VALUES ('resource', 'view', 'resource', 'name') ");
        execute_sql(" UPDATE log SET module = 'resource' WHERE module = 'reading' ");
        execute_sql(" UPDATE modules SET name = 'resource' WHERE name = 'reading' ");
    }
    if ($oldversion < 2002102503) {
        execute_sql(" ALTER TABLE `course` ADD `modinfo` TEXT NOT NULL AFTER `format` ");
        require_once "{$CFG->dirroot}/mod/forum/lib.php";
        require_once "{$CFG->dirroot}/course/lib.php";
        if (!($module = get_record("modules", "name", "forum"))) {
            notify("Could not find forum module!!");
            return false;
        }
        // First upgrade the site forums
        if ($site = get_site()) {
            print_heading("Making News forums editable for main site (moving to section 1)...");
            if ($news = forum_get_course_forum($site->id, "news")) {
                $mod->course = $site->id;
                $mod->module = $module->id;
                $mod->instance = $news->id;
                $mod->section = 1;
                if (!($mod->coursemodule = add_course_module($mod))) {
                    notify("Could not add a new course module to the site");
                    return false;
                }
                if (!($sectionid = add_mod_to_section($mod))) {
                    notify("Could not add the new course module to that section");
                    return false;
                }
                if (!set_field("course_modules", "section", $sectionid, "id", $mod->coursemodule)) {
                    notify("Could not update the course module with the correct section");
                    return false;
                }
            }
        }
        // Now upgrade the courses.
        if ($courses = get_records_sql("SELECT * FROM course WHERE category > 0")) {
            print_heading("Making News and Social forums editable for each course (moving to section 0)...");
            foreach ($courses as $course) {
                if ($course->format == "social") {
                    // we won't touch them
                    continue;
//.........这里部分代码省略.........

$strgroups = get_string('groups');
$strgroupmy = get_string('groupmy');
$editing = $PAGE->user_is_editing();
echo '<table id="layout-table" cellspacing="0" summary="' . get_string('layouttable') . '">';
echo '<tr>';
if (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $editing) {
    echo '<td style="width:' . $preferred_width_left . 'px" id="left-column">';
    print_container_start();
    blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
    print_container_end();
    echo '</td>';
}
echo '<td id="middle-column">';
print_container_start();
echo skip_main_destination();
if ($forum = forum_get_course_forum($course->id, 'social')) {
    print_heading_block(get_string('socialheadline'));
    $cm = get_coursemodule_from_instance('forum', $forum->id);
    $context = get_context_instance(CONTEXT_MODULE, $cm->id);
    echo '<div class="subscribelink">', forum_get_subscribe_link($forum, $context), '</div>';
    forum_print_latest_discussions($course, $forum, 10, 'plain', '', false);
} else {
    notify('Could not find or create a social forum here');
}
print_container_end();
echo '</td>';
// The right column
if (blocks_have_content($pageblocks, BLOCK_POS_RIGHT) || $editing) {
    echo '<td style="width:' . $preferred_width_right . 'px" id="right-column">';
    print_container_start();
    blocks_print_group($PAGE, $pageblocks, BLOCK_POS_RIGHT);

 echo '<td class="left side">&nbsp;</td>';
 echo '<td class="content">';
 echo '<div class="summary">';
 //            echo "<tr>";
 //            echo "<td nowrap class=\"fnweeklyside\" valign=top width=20>&nbsp;</td>";
 //            echo "<td valign=top class=\"fnweeklycontent\" width=\"100%\">";
 echo '<table cellspacing="0" cellpadding="0" border="0" align="center">' . '<tr><td>';
 $summaryformatoptions->noclean = true;
 echo format_text($cobjectsection->summary, FORMAT_HTML, $summaryformatoptions);
 if ($isediting) {
     echo " <a title=\"{$streditsummary}\" " . " href=\"editsection.php?id={$cobjectsection->id}\"><img height=11 width=11 src=\"{$CFG->pixpath}/t/edit.gif\" " . " border=0 alt=\"{$streditsummary}\"></a><br />";
 }
 echo '<br clear="all">';
 /// If showannouncements is off, remove the news forum from the mod list.
 if (empty($cobject->course->showannouncements)) {
     $news = forum_get_course_forum($course->id, 'news');
     $modnum = get_field('modules', 'id', 'name', 'forum');
     foreach ($mods as $key => $mod) {
         if ($mod->module == $modnum && $mod->instance == $news->id) {
             unset($mods[$key]);
             break;
         }
     }
 }
 $cobject->print_section_fn($cobjectsection);
 if ($isediting) {
     $cobject->print_section_add_menus($section);
 }
 echo '</td></tr></table>';
 echo '</td>';
 echo '<td class="right side">&nbsp;</td>';

    /**
     * Alternative rendering of front page news, called from layout/faux_site_index.php which
     * replaces the standard news output with this.
     *
     * @return string
     */
    public function site_frontpage_news()
    {
        global $CFG, $SITE;
        require_once $CFG->dirroot . '/mod/forum/lib.php';
        if (!($forum = forum_get_course_forum($SITE->id, 'news'))) {
            print_error('cannotfindorcreateforum', 'forum');
        }
        $cm = get_coursemodule_from_instance('forum', $forum->id, $SITE->id, false, MUST_EXIST);
        $context = \context_module::instance($cm->id, MUST_EXIST);
        $output = html_writer::start_tag('div', array('id' => 'site-news-forum', 'class' => 'clearfix'));
        $output .= $this->heading(format_string($forum->name, true, array('context' => $context)));
        $groupmode = groups_get_activity_groupmode($cm, $SITE);
        $currentgroup = groups_get_activity_group($cm);
        if (!($discussions = forum_get_discussions($cm, 'p.modified DESC', true, null, $SITE->newsitems, false, -1, $SITE->newsitems))) {
            $output .= html_writer::tag('div', '(' . get_string('nonews', 'forum') . ')', array('class' => 'forumnodiscuss'));
            if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
                $output .= html_writer::link(new moodle_url('/mod/forum/post.php', array('forum' => $forum->id)), get_string('addanewtopic', 'forum'), array('class' => 'btn btn-primary'));
            } else {
                // No news and user cannot edit, so return nothing.
                return '';
            }
            return $output . '</div>';
        }
        $output .= html_writer::start_div('', array('id' => 'news-articles'));
        foreach ($discussions as $discussion) {
            if (!forum_user_can_see_discussion($forum, $discussion, $context)) {
                continue;
            }
            $message = file_rewrite_pluginfile_urls($discussion->message, 'pluginfile.php', $context->id, 'mod_forum', 'post', $discussion->id);
            $imagestyle = '';
            $imgarr = \theme_snap\local::extract_first_image($message);
            if ($imgarr) {
                $imageurl = s($imgarr['src']);
                $imagestyle = " style=\"background-image:url('{$imageurl}')\"";
            }
            $name = format_string($discussion->name, true, array('context' => $context));
            $date = userdate($discussion->timemodified, get_string('strftimedatetime', 'langconfig'));
            $readmorebtn = "<a class='btn btn-default toggle' href='" . $CFG->wwwroot . "/mod/forum/discuss.php?d=" . $discussion->discussion . "'>" . get_string('readmore', 'theme_snap') . "</a>";
            $preview = '';
            $newsimage = '';
            if (!$imagestyle) {
                $preview = html_to_text($message, 0, false);
                $preview = "<div class='news-article-preview'><p>" . shorten_text($preview, 200) . "</p>\n                <p class='text-right'>" . $readmorebtn . "</p></div>";
            } else {
                $newsimage = '<div class="news-article-image toggle"' . $imagestyle . ' title="' . get_string('readmore', 'theme_snap') . '"></div>';
            }
            $close = get_string('close', 'theme_snap');
            $output .= <<<HTML
<div class="news-article clearfix">
    {$newsimage}
    <div class="news-article-inner">
        <div class="news-article-content">
            <h3 class='toggle'><a href="{$CFG->wwwroot}/mod/forum/discuss.php?d={$discussion->discussion}">{$name}</a></h3>
            <em class="news-article-date">{$date}</em>
        </div>
    </div>
    {$preview}
    <div class="news-article-message" tabindex="-1">
        {$message}
        <div><hr><a class="snap-action-icon toggle" href="#">
        <i class="icon icon-close"></i><small>{$close}</small></a></div>
    </div>
</div>
HTML;
        }
        $actionlinks = html_writer::link(new moodle_url('/mod/forum/view.php', array('id' => $cm->id)), get_string('morenews', 'theme_snap'), array('class' => 'btn btn-default'));
        if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
            $actionlinks .= html_writer::link(new moodle_url('/mod/forum/post.php', array('forum' => $forum->id)), get_string('addanewtopic', 'forum'), array('class' => 'btn btn-primary'));
        }
        $output .= html_writer::end_div();
        $output .= "<br><div class='text-center'>{$actionlinks}</div>";
        $output .= html_writer::end_tag('div');
        return $output;
    }

 /**
  * Observer for \core\event\course_updated event.
  *
  * @param \core\event\course_updated $event
  * @return void
  */
 public static function course_updated(\core\event\course_updated $event)
 {
     global $CFG;
     $course = $event->get_record_snapshot('course', $event->objectid);
     $format = course_get_format($course);
     if ($format->supports_news() && !empty($course->newsitems)) {
         require_once $CFG->dirroot . '/mod/forum/lib.php';
         // Auto create the announcements forum.
         forum_get_course_forum($event->objectid, 'news');
     }
 }

 function get_course_mods($id, $username = '')
 {
     global $CFG, $DB;
     $username = utf8_decode($username);
     $username = strtolower($username);
     if ($username) {
         $user = get_complete_user_data('username', $username);
     }
     $modinfo = get_fast_modinfo($id);
     $sections = $modinfo->get_section_info_all();
     $forum = forum_get_course_forum($id, 'news');
     $news_forum_id = $forum->id;
     $mods = get_fast_modinfo($id)->get_cms();
     $modnames = get_module_types_names();
     $modnamesplural = get_module_types_names(true);
     $modnamesused = get_fast_modinfo($id)->get_used_module_names();
     $rawmods = get_course_mods($id);
     $context = context_course::instance($id);
     // Kludge to use username param to get non visible sections and modules
     $username_orig = $username;
     if ($username_orig == 'joomdle_get_not_visible') {
         $username = '';
     }
     $e = array();
     foreach ($sections as $section) {
         if ($username_orig != 'joomdle_get_not_visible') {
             if (!$section->visible) {
                 continue;
             }
         }
         $sectionmods = explode(",", $section->sequence);
         foreach ($sectionmods as $modnumber) {
             if (empty($mods[$modnumber])) {
                 continue;
             }
             $mod = $mods[$modnumber];
             if ($username_orig != 'joomdle_get_not_visible') {
                 if (!$mod->visible) {
                     continue;
                 }
             }
             $resource['completion_info'] = '';
             if ($username) {
                 $cm = get_coursemodule_from_id(false, $mod->id);
                 if (!\core_availability\info_module::is_user_visible($cm, $user->id)) {
                     if (empty($mod->availableinfo)) {
                         // Mod not visible, and no completion info to show
                         continue;
                     }
                     $resource['available'] = 0;
                     $ci = new condition_info($mod);
                     $resource['completion_info'] = $ci->get_full_information();
                 } else {
                     $resource['available'] = 1;
                 }
             } else {
                 $resource['available'] = 1;
             }
             $e[$section->section]['section'] = $section->section;
             $e[$section->section]['name'] = $section->name;
             $e[$section->section]['summary'] = file_rewrite_pluginfile_urls($section->summary, 'pluginfile.php', $context->id, 'course', 'section', $section->id);
             $e[$section->section]['summary'] = str_replace('pluginfile.php', '/auth/joomdle/pluginfile_joomdle.php', $e[$section->section]['summary']);
             $resource['id'] = $mod->id;
             $resource['name'] = $mod->name;
             $resource['mod'] = $mod->modname;
             // Get content
             $resource['content'] = '';
             $modname = $mod->modname;
             $functionname = $modname . "_get_coursemodule_info";
             if (file_exists("{$CFG->dirroot}/mod/{$modname}/lib.php")) {
                 include_once "{$CFG->dirroot}/mod/{$modname}/lib.php";
                 if ($hasfunction = function_exists($functionname)) {
                     if ($info = $functionname($rawmods[$modnumber])) {
                         $resource['content'] = $info->content;
                     }
                 }
             }
             // Format for mod->icon is: f/type-24
             $type = substr($mod->icon, 2);
             $parts = explode('-', $type);
             $type = $parts[0];
             $resource['type'] = $type;
             //In forum, type is unused, so we use it for forum type: news/general
             if ($mod->modname == 'forum') {
                 $cm = get_coursemodule_from_id('forum', $mod->id);
                 if ($cm->instance == $news_forum_id) {
                     $resource['type'] = 'news';
                 }
             }
             /*
             				if ($mod->modname == 'resource')
                             {
                                 // Get display options for resource
                                 $params = array ($mod->instance);
                                 $query = "SELECT display from  {$CFG->prefix}resource where id = ?";
                                 $record = $DB->get_record_sql ($query, $params);
                                 
                                 $resource['display'] = $record->display;
                             }
                             else $resource['display'] = 0;
//.........这里部分代码省略.........

function cms_render_news($course)
{
    global $CFG;
    if ($course->newsitems) {
        // Print forums only when needed
        require_once $CFG->dirroot . '/mod/forum/lib.php';
        if (!($newsforum = forum_get_course_forum($course->id, 'news'))) {
            error('Could not find or create a main news forum for the course');
        }
        if (isset($USER->id)) {
            $SESSION->fromdiscussion = $CFG->wwwroot;
            if (forum_is_subscribed($USER->id, $newsforum->id)) {
                $subtext = get_string('unsubscribe', 'forum');
            } else {
                $subtext = get_string('subscribe', 'forum');
            }
            $headertext = '<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr>' . '<td><div class="title">' . $newsforum->name . '</div></td>' . '<td><div class="link"><a href="mod/forum/subscribe.php?id=' . $newsforum->id . '">' . $subtext . '</a></div></td>' . '</tr></table>';
        } else {
            $headertext = $newsforum->name;
        }
        ob_start();
        print_heading_block($headertext);
        forum_print_latest_discussions($course, $newsforum, $course->newsitems, 'plain', 'p.modified DESC');
        $return = ob_get_contents();
        ob_end_clean();
        return $return;
    }
    return '';
}

/**
 * Same as "full", but removes all subscription or any discussion commandes.
 */
function local_my_print_latestnews_simple()
{
    global $PAGE, $SITE, $CFG, $OUTPUT, $USER, $DB, $SESSION;
    $str = '';
    if ($SITE->newsitems) {
        // Print forums only when needed.
        require_once $CFG->dirroot . '/mod/forum/lib.php';
        if (!($newsforum = forum_get_course_forum($SITE->id, 'news'))) {
            print_error('cannotfindorcreateforum', 'forum');
        }
        $renderer = $PAGE->get_renderer('local_my');
        $renderer->print_forum_link($newforum);
        if (isloggedin()) {
            $SESSION->fromdiscussion = $CFG->wwwroot;
            $subtext = '';
            $str .= '<div class="block">';
            $str .= '<div class="header">';
            $str .= '<div class="title">';
            $str .= '<h2>' . $forumname . '</h2>';
            $str .= '</div></div>';
        } else {
            $str .= '<div class="block">';
            $str .= '<div class="header">';
            $str .= '<div class="title">';
            $str .= '<h2>' . $forumname . '</h2>';
            $str .= '</div></div>';
        }
        $str .= '<div class="content">';
        $str .= '<table width="100%" class="newstable">';
        $newsdiscussions = $DB->get_records('forum_discussions', array('forum' => $newsforum->id), 'timemodified DESC');
        foreach ($newsdiscussions as $news) {
            $str .= '<tr valign="top">';
            $str .= '<td width="80%">';
            $forumurl = new moodle_url('/mod/forum/discuss.php', array('d' => $news->id));
            $str .= '<a href="' . $forumurl . '">' . $news->name . '</a>';
            $str .= '</td>';
            $str .= '<td align="right" width="20%">';
            $str .= '(' . userdate($news->timemodified) . ')';
            $str .= '</td>';
            $str .= '</tr>';
        }
        $str .= '</table>';
        $str .= '</div>';
        $str .= '</div>';
        $str .= html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => 'skipsitenews'));
    }
    return $str;
}

 function get_content()
 {
     global $CFG, $USER, $COURSE;
     if ($this->content !== NULL) {
         return $this->content;
     }
     $this->content = new stdClass();
     $this->content->text = '';
     $this->content->footer = '';
     if (empty($this->instance)) {
         return $this->content;
     }
     if ($COURSE->newsitems) {
         // Create a nice listing of recent postings
         require_once $CFG->dirroot . '/mod/forum/lib.php';
         // We'll need this
         if (!($forum = forum_get_course_forum($COURSE->id, 'news'))) {
             return '';
         }
         $modinfo = get_fast_modinfo($COURSE);
         if (empty($modinfo->instances['forum'][$forum->id])) {
             return '';
         }
         $cm = $modinfo->instances['forum'][$forum->id];
         $context = get_context_instance(CONTEXT_MODULE, $cm->id);
         /// First work out whether we can post to this group and if so, include a link
         $groupmode = groups_get_activity_groupmode($cm);
         $currentgroup = groups_get_activity_group($cm, true);
         /// Get all the recent discussions we're allowed to see
         if (!($discussions = forum_get_discussions($cm, 'p.modified DESC', false, $currentgroup, $COURSE->newsitems))) {
             $this->content->text = '(' . get_string('nonews', 'forum') . ')';
             // add a link to add "a new news item" (nadavkav)
             if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
                 $this->content->footer = '<div class="newlink"><a href="' . $CFG->wwwroot . '/mod/forum/post.php?forum=' . $forum->id . '">' . get_string('addanewitem', 'block_news_items_scrolling') . '</a>...</div>';
             }
             return $this->content;
         }
         // add scrolling effect <marquee> (nadavkav)
         $text = '<marquee width="100%" height="120" align="right" direction="up" scrolldelay="50" scrollamount="1" onmouseout="this.start();" style="padding-top: 2px;" onmouseover="this.stop();" dir="rtl">';
         /// Actually create the listing now
         $strftimerecent = get_string('strftimerecent');
         $strmore = get_string('more', 'block_news_items_scrolling');
         /// Accessibility: markup as a list.
         $text .= "\n<ul class='unlist'>\n";
         foreach ($discussions as $discussion) {
             $discussion->subject = $discussion->name;
             $discussion->subject = format_string($discussion->subject, true, $forum->course);
             //if (! $post = forum_get_post_full($discussion->discussion)) {
             //error("Could not find the first post in this forum");
             //}
             $post = get_record("forum_posts", "discussion", $discussion->discussion);
             $text .= '<li class="post">' . '<div class="head">' . '<div class="info">' . format_text($post->message) . ' ' . '<a href="' . $CFG->wwwroot . '/mod/forum/discuss.php?d=' . $discussion->discussion . '">' . $strmore . '...</a></div>' . "</li>\n";
         }
         $text .= "</ul>\n";
         $text .= '</marquee>';
         $this->content->text = $text;
         $this->content->footer = '<a href="' . $CFG->wwwroot . '/mod/forum/view.php?f=' . $forum->id . '">' . get_string('olditems', 'block_news_items_scrolling') . '</a> ...';
         if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
             $this->content->footer = '<div class="newlink"><a href="' . $CFG->wwwroot . '/mod/forum/post.php?forum=' . $forum->id . '">' . get_string('addanewitem', 'block_news_items_scrolling') . '</a>...</div>';
         }
         /// If RSS is activated at site and forum level and this forum has rss defined, show link
         if (isset($CFG->enablerssfeeds) && isset($CFG->forum_enablerssfeeds) && $CFG->enablerssfeeds && $CFG->forum_enablerssfeeds && $forum->rsstype && $forum->rssarticles) {
             require_once $CFG->dirroot . '/lib/rsslib.php';
             // We'll need this
             if ($forum->rsstype == 1) {
                 $tooltiptext = get_string('rsssubscriberssdiscussions', 'forum', format_string($forum->name));
             } else {
                 $tooltiptext = get_string('rsssubscriberssposts', 'forum', format_string($forum->name));
             }
             if (empty($USER->id)) {
                 $userid = 0;
             } else {
                 $userid = $USER->id;
             }
             $this->content->footer .= '<br />' . rss_get_link($COURSE->id, $userid, 'forum', $forum->id, $tooltiptext);
         }
     }
     return $this->content;
 }

 public function leaf_frontpage_carrousel($device)
 {
     global $COURSE, $CFG;
     if (isloggedin() && !is_siteadmin() && $COURSE->id != 1) {
         return '';
     }
     if (!($this->page->bodyid == 'page-login-index' || $this->page->bodyid == 'page-my-index')) {
         return '';
     }
     require_once $CFG->dirroot . '/mod/forum/lib.php';
     // We'll need this
     $content = '';
     if (!($forum = forum_get_course_forum($COURSE->id, 'news'))) {
         return '';
     }
     $modinfo = get_fast_modinfo($COURSE);
     if (empty($modinfo->instances['forum'][$forum->id])) {
         return '';
     }
     $cm = $modinfo->instances['forum'][$forum->id];
     if (!$cm->uservisible) {
         return '';
     }
     $context = context_module::instance($cm->id);
     /// First work out whether we can post to this group and if so, include a link
     $groupmode = groups_get_activity_groupmode($cm);
     $currentgroup = groups_get_activity_group($cm, true);
     if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm)) {
         $link = '<li><a href="' . $CFG->wwwroot . '/mod/forum/post.php?forum=' . $forum->id . '">' . get_string('addsitenews', 'theme_leaf') . '</a></li>';
         return $link;
     }
     if (!($discussions = leaf_forum_get_discussions($cm, 'p.modified DESC', true, $currentgroup, $COURSE->newsitems))) {
         return '';
     }
     $strftimerecent = get_string('strftimerecent');
     $indicators = '';
     $carousel_items = '';
     $extra = 'active ';
     $count = 0;
     $prev = html_writer::link('#myCarousel' . $device, "&lsaquo;", array('class' => 'carousel-control left', 'data-slide' => 'prev'));
     $next = html_writer::link('#myCarousel' . $device, "&rsaquo;", array('class' => 'carousel-control right', 'data-slide' => 'next'));
     foreach ($discussions as $discussion) {
         $strmore = get_string('read_more', 'theme_leaf');
         if (isset($discussion->message)) {
             if (strlen(strip_tags($discussion->message)) > 400) {
                 $message = substr(strip_tags($discussion->message), 0, 400) . '..';
             } else {
                 $message = $discussion->message;
                 $strmore = '';
             }
         } else {
             $message = '';
         }
         $discussion->subject = format_string($discussion->subject, true, $forum->course);
         $carousel_items .= '<div class="' . $extra . 'item forumpost ">' . '<div class="head clearfix">' . '<div class="info"><h2>' . get_string('sitenews', 'theme_leaf') . '</h2></div>' . '<h3>' . $discussion->subject . '</h3>' . userdate($discussion->modified, $strftimerecent) . '
                      </div><br>' . '<div class="message">' . $message . ' </div>' . '<div class="readmore"><a href="' . $CFG->wwwroot . '/theme/leaf/layout/index.php?d=' . $discussion->discussion . '">' . $strmore . '</a></div>' . "</div>\n";
         $extra = '';
     }
     // Carrousel markup
     $content .= html_writer::start_tag('div', array('class' => 'sitenews' . $device));
     $content .= html_writer::start_tag('div', array('id' => 'myCarousel' . $device, 'class' => 'carousel slide'));
     $content .= html_writer::start_tag('div', array('class' => 'carousel-inner'));
     $content .= '<div class="newscontrols">' . $next . $prev . '</div>';
     $content .= $carousel_items;
     $content .= html_writer::end_tag('div');
     $content .= html_writer::end_tag('div');
     $content .= html_writer::end_tag('div');
     return $content;
 }