moodle/question/category.php

<?php // $Id$
/**
 * Allows a teacher to create, edit and delete categories
 *
 * @author Martin Dougiamas and many others.
 *         {@link http://moodle.org}
 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
 * @package questionbank
 */

    require_once("../config.php");
    require_once("editlib.php");
    require_once("category_class.php");



    list($thispageurl, $courseid, $cmid, $cm, $module, $pagevars) = question_edit_setup();


    // get values from form for actions on this page
    $param = new stdClass();


    $param->moveup = optional_param('moveup', 0, PARAM_INT);
    $param->movedown = optional_param('movedown', 0, PARAM_INT);
    $param->left = optional_param('left', 0, PARAM_INT);
    $param->right = optional_param('right', 0, PARAM_INT);
    $param->hide = optional_param('hide', 0, PARAM_INT);
    $param->delete = optional_param('delete', 0, PARAM_INT);
    $param->confirm = optional_param('confirm', 0, PARAM_INT);
    $param->cancel = optional_param('cancel', '', PARAM_ALPHA);
    $param->move = optional_param('move', 0, PARAM_INT);
    $param->moveto = optional_param('moveto', 0, PARAM_INT);
    $param->publish = optional_param('publish', 0, PARAM_INT);
    $param->addcategory = optional_param('addcategory', '', PARAM_NOTAGS);
    $param->edit = optional_param('edit', 0, PARAM_INT);
    $param->updateid = optional_param('updateid', 0, PARAM_INT);

    if (! $course = get_record("course", "id", $courseid)) {
        error("Course ID is incorrect");
    }

    $context = get_context_instance(CONTEXT_COURSE, $courseid);

    require_capability('moodle/question:managecategory', $context);

    $qcobject = new question_category_object($pagevars['cpage'], $thispageurl);

    $streditingcategories = get_string('editcategories', 'quiz');
    if ($qcobject->editlist->process_actions($param->left, $param->right, $param->moveup, $param->movedown)) {
            //processing of these actions is handled in the method and page redirects.
    } else if ($cm!==null) {
        // Page header
        $strupdatemodule = has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_COURSE, $course->id))
            ? update_module_button($cm->id, $course->id, get_string('modulename', $cm->modname))
            : "";
        $navlinks = array();
        $navlinks[] = array('name' => get_string('modulenameplural', $cm->modname), 
                            'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$course->id", 
                            'type' => 'activity');
        $navlinks[] = array('name' => format_string($module->name), 
                            'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?cmid={$cm->id}",
                            'type' => 'title');
        $navlinks[] = array('name' => $streditingcategories, 'link' => '', 'type' => 'title');
        $navigation = build_navigation($navlinks);
        print_header_simple($streditingcategories, '', $navigation, "", "", true, $strupdatemodule);


        $currenttab = 'edit';
        $mode = 'categories';
        ${$cm->modname} = $module;
        include($CFG->dirroot."/mod/{$cm->modname}/tabs.php");
    } else {
        // Print basic page layout.
        $navlinks = array();
        $navlinks[] = array('name' => $streditingcategories, 'link' => '', 'type' => 'title');
        $navigation = build_navigation($navlinks);
           
        print_header_simple($streditingcategories, '', $navigation);

        // print tabs
        $currenttab = 'categories';
        include('tabs.php');
    }

    // Process actions.
    if (isset($_REQUEST['sesskey']) and confirm_sesskey()) { // sesskey must be ok
        if (!empty($param->delete) and empty($param->cancel)) {
            if (!empty($param->confirm)) {
                /// 'confirm' is the category to move existing questions to
                $qcobject->delete_category($param->delete, $param->confirm);
            } else {
                $qcobject->delete_category($param->delete);
            }
        } else if (!empty($param->hide)) {
            $qcobject->publish_category(false, $param->hide);
        } else if (!empty($param->publish)) {
            $qcobject->publish_category(true, $param->publish);
        } else if (!empty($param->addcategory)) {
            $param->newparent   = required_param('newparent',PARAM_INT);
            $param->newcategory = required_param('newcategory',PARAM_NOTAGS);
            $param->newinfo     = required_param('newinfo',PARAM_NOTAGS);
            $param->newpublish  = required_param('newpublish',PARAM_INT);
            $qcobject->add_category($param->newparent, $param->newcategory, $param->newinfo,
                $param->newpublish, $course->id);
        } else if (!empty($param->edit)) {
            $qcobject->edit_single_category($param->edit, $pagevars['cpage']);
        } else if (!empty($param->updateid)) {
            $param->updateparent  = required_param('updateparent',PARAM_INT);
            $param->updatename    = required_param('updatename',PARAM_NOTAGS);
            $param->updateinfo    = required_param('updateinfo',PARAM_NOTAGS);
            $param->updatepublish = required_param('updatepublish',PARAM_INT);
            $qcobject->update_category($param->updateid, $param->updateparent, $param->updatename,
                $param->updateinfo, $param->updatepublish, $course->id);
        }
    }

    // display the user interface
    $qcobject->display_user_interface();

    print_footer($course);
?>