/**
 * Obtains shared data that is used in print_section when displaying a
 * course-module entry.
 *
 * Calls format_text or format_string as appropriate, and obtains the correct icon.
 *
 * This data is also used in other areas of the code.
 * @param cm_info $cm Course-module data (must come from get_fast_modinfo)
 * @param object $course Moodle course object
 * @return array An array with the following values in this order:
 *   $content (optional extra content for after link),
 *   $instancename (text of link)
 */
function get_print_section_cm_text(cm_info $cm, $course)
{
    global $OUTPUT;
    // Get content from modinfo if specified. Content displays either
    // in addition to the standard link (below), or replaces it if
    // the link is turned off by setting ->url to null.
    if (($content = $cm->get_content()) !== '') {
        // Improve filter performance by preloading filter setttings for all
        // activities on the course (this does nothing if called multiple
        // times)
        filter_preload_activities($cm->get_modinfo());
        // Get module context
        $modulecontext = get_context_instance(CONTEXT_MODULE, $cm->id);
        $labelformatoptions = new stdClass();
        $labelformatoptions->noclean = true;
        $labelformatoptions->overflowdiv = true;
        $labelformatoptions->context = $modulecontext;
        $content = format_text($content, FORMAT_HTML, $labelformatoptions);
    } else {
        $content = '';
    }
    // Get course context
    $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
    $stringoptions = new stdClass();
    $stringoptions->context = $coursecontext;
    $instancename = format_string($cm->name, true, $stringoptions);
    return array($content, $instancename);
}

    /**
     * Returns the content to display on course/overview page, formatted and passed through filters
     *
     * if $options['context'] is not specified, the module context is used
     *
     * @param array|stdClass $options formatting options, see {@link format_text()}
     * @return string
     */
    public function get_formatted_content($options = array()) {
        $this->obtain_view_data();
        if (empty($this->content)) {
            return '';
        }
        // Improve filter performance by preloading filter setttings for all
        // activities on the course (this does nothing if called multiple
        // times)
        filter_preload_activities($this->get_modinfo());

        $options = (array)$options;
        if (!isset($options['context'])) {
            $options['context'] = $this->get_context();
        }
        return format_text($this->content, FORMAT_HTML, $options);
    }

 /**
  * Returns the name to display on course/overview page, formatted and passed through filters
  *
  * if $options['context'] is not specified, the module context is used
  *
  * @param array|stdClass $options formatting options, see {@link format_string()}
  * @return string
  */
 public function get_formatted_name($options = array())
 {
     global $CFG;
     $options = (array) $options;
     if (!isset($options['context'])) {
         $options['context'] = $this->get_context();
     }
     // Improve filter performance by preloading filter setttings for all
     // activities on the course (this does nothing if called multiple
     // times).
     if (!empty($CFG->filterall)) {
         filter_preload_activities($this->get_modinfo());
     }
     return format_string($this->get_name(), true, $options);
 }

 private function assert_matches($modinfo)
 {
     global $FILTERLIB_PRIVATE;
     // Use preload cache...
     $FILTERLIB_PRIVATE = new stdClass();
     filter_preload_activities($modinfo);
     // Get data and check no queries are made
     $before = $this->testdb->perf_get_reads();
     $plfilters1 = filter_get_active_in_context($this->activity1context);
     $plfilters2 = filter_get_active_in_context($this->activity2context);
     $after = $this->testdb->perf_get_reads();
     $this->assertEqual($before, $after);
     // Repeat without cache and check it makes queries now
     $FILTERLIB_PRIVATE = new stdClass();
     $before = $this->testdb->perf_get_reads();
     $filters1 = filter_get_active_in_context($this->activity1context);
     $filters2 = filter_get_active_in_context($this->activity2context);
     $after = $this->testdb->perf_get_reads();
     $this->assertTrue($after > $before);
     // Check they match
     $this->assertEqual($plfilters1, $filters1);
     $this->assertEqual($plfilters2, $filters2);
 }

/**
 * Prints a section full of activity modules
 *
 * @author Steve Beaudry
 * date    2011-06-03
 * @global object $CFG The Moodle configuration object
 * @param object course information
 * @param array section information
 * @param array mod modules of the course
 * @return string section table
 */
function print_course_section($course, $section, $mods)
{
    global $CFG;
    $sectiontable = '<div>';
    $modinfo = get_fast_modinfo($course);
    filter_preload_activities($modinfo);
    if (!empty($section->sequence)) {
        $sectionmods = explode(",", $section->sequence);
        foreach ($sectionmods as $modnumber) {
            if (empty($mods[$modnumber])) {
                continue;
            }
            $mod = $mods[$modnumber];
            // Is this course-module available to the user?
            if (!$mod->uservisible && empty($mod->availableinfo)) {
                continue;
                // Not available, do not list.
            }
            if ($mod->visible) {
                $content = $mod->get_formatted_content(array('overflowdiv' => true, 'noclean' => true));
                $instancename = $mod->get_formatted_name(array('overflowdiv' => true, 'noclean' => true));
                if (strlen($content) > 0) {
                    $instancename = strip_tags($content);
                }
                $fullinstancename = urldecode($instancename);
                $cm = $modinfo->get_cm($modnumber);
                if (!empty($cm->extra)) {
                    $extra = urldecode($cm->extra);
                } else {
                    $extra = '';
                }
                // Normal activity.
                $compilable = get_config("local_compile", $mod->modname);
                if ($compilable && $mod->visible) {
                    if (!strlen(trim($instancename))) {
                        $instancename = $mod->modfullname;
                    }
                    if ($mod->modname != 'resource') {
                        $sectiontable .= '<tr>';
                        $sectiontable .= '<td class="compile-select-spacer"></td>';
                        $sectiontable .= '<td class="compile-select-checkcell">' . "<input type=checkbox checked onclick=\"setparent(" . $modnumber . "," . $section->id . ")\"  class=\"section-{$section->id}\" id=\"{$modnumber}\" name=checkboxlist[] value=\"{$modnumber}\" />" . '</td>';
                        $sectiontable .= '<td class="compile-select-desccell">' . "<a href=\"{$CFG->wwwroot}/mod/{$mod->modname}/view.php?id={$mod->id}\">" . "<img src=\"{$CFG->wwwroot}/mod/{$mod->modname}/pix/icon.png\">{$fullinstancename}</a>" . '</td>';
                        $sectiontable .= '</tr>';
                    } else {
                        require_once $CFG->dirroot . '/mod/resource/lib.php';
                        $info = resource_get_coursemodule_info($mod);
                        if ($info->icon) {
                            $sectiontable .= '<tr>';
                            $sectiontable .= '<td class="compile-select-spacer"></td>';
                            $sectiontable .= '<td class="compile-select-checkcell">' . "<input type=checkbox onclick=\"setparent(" . $modnumber . "," . $section->id . ")\" checked class=\"section-{$section->id}\" " . "id={$modnumber} name=checkboxlist[] value={$modnumber} />" . '</td>';
                            $sectiontable .= '<td class="compile-select-desccell">' . "<a href=\"{$CFG->wwwroot}/mod/{$mod->modname}/view.php?id={$mod->id}\">" . "<img src=\"{$CFG->wwwroot}/pix/{$info->icon}.png\">{$fullinstancename}</a>" . '</td>';
                            $sectiontable .= '</tr>';
                        } else {
                            if (!$info->icon) {
                                $sectiontable .= '<tr>';
                                $sectiontable .= '<td class="compile-select-spacer"></td>';
                                $sectiontable .= '<td class="compile-select-checkcell">' . "<input type=checkbox onclick=\"setparent(" . $modnumber . "," . $section->id . ")\" checked class=\"section-{$section->id}\" " . "id=\"{$modnumber}\" name=checkboxlist[] value=\"{$modnumber}\" />" . '</td>';
                                $sectiontable .= '<td class="compile-select-desccell">' . "<a href=\"{$CFG->wwwroot}/mod/{$mod->modname}/view.php?id={$mod->id}\">" . "<img src=\"{$CFG->modpixpath}/{$mod->modname}/icon.gif\">{$fullinstancename}</a>" . '</td>';
                                $sectiontable .= '</tr>';
                            }
                        }
                    }
                }
            }
        }
    }
    $sectiontable .= '</div>';
    if ($sectiontable == "<div></div>") {
        $sectiontable = '';
    }
    return $sectiontable;
}