settings.php

<?php // $Id$

require_once('../config.php');
require_once($CFG->libdir.'/adminlib.php');

$section = required_param('section', PARAM_SAFEDIR);
$return = optional_param('return','', PARAM_ALPHA);
$adminediting = optional_param('adminedit', -1, PARAM_BOOL);

/// no guest autologin
require_login(0, false);
$PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
$PAGE->set_url($CFG->admin . '/settings.php', array('section' => $section));
$PAGE->set_pagetype('admin-setting-' . $section);

$adminroot = admin_get_root(); // need all settings
$settingspage = $adminroot->locate($section, true);

if (empty($settingspage) or !($settingspage instanceof admin_settingpage)) {
    print_error('sectionerror', 'admin', "$CFG->wwwroot/$CFG->admin/");
    die;
}

if (!($settingspage->check_access())) {
    print_error('accessdenied', 'admin');
    die;
}

/// WRITING SUBMITTED DATA (IF ANY) -------------------------------------------------------------------------------

$statusmsg = '';
$errormsg  = '';
$focus = '';

if ($data = data_submitted() and confirm_sesskey()) {
    if (admin_write_settings($data)) {
        $statusmsg = get_string('changessaved');
    }

    if (empty($adminroot->errors)) {
        switch ($return) {
            case 'site': redirect("$CFG->wwwroot/");
            case 'admin': redirect("$CFG->wwwroot/$CFG->admin/");
        }
    } else {
        $errormsg = get_string('errorwithsettings', 'admin');
        $firsterror = reset($adminroot->errors);
        $focus = $firsterror->id;
    }
    $adminroot = admin_get_root(true); //reload tree
    $settingspage = $adminroot->locate($section, true);
}

if ($PAGE->user_allowed_editing() && $adminediting != -1) {
    $USER->editing = $adminediting;
}

/// print header stuff ------------------------------------------------------------
if (empty($SITE->fullname)) {
    print_header($settingspage->visiblename, $settingspage->visiblename, '', $focus);
    print_simple_box(get_string('configintrosite', 'admin'), 'center', '50%');

    if ($errormsg !== '') {
        notify ($errormsg);

    } else if ($statusmsg !== '') {
        notify ($statusmsg, 'notifysuccess');
    }

    // ---------------------------------------------------------------------------------------------------------------

    echo '<form action="settings.php" method="post" id="adminsettings">';
    echo '<div class="settingsform clearfix">';
    echo $PAGE->url->hidden_params_out();
    echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
    echo '<input type="hidden" name="return" value="'.$return.'" />';

    echo $settingspage->output_html();

    echo '<div class="form-buttons"><input class="form-submit" type="submit" value="'.get_string('savechanges','admin').'" /></div>';

    echo '</div>';
    echo '</form>';

} else {
    // Note: MDL-19010 there will be further changes to printing header and blocks.
    // The code will be much nicer than this eventually.
    $pageblocks = blocks_setup($PAGE);

    $preferred_width_left = blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]);
    $preferred_width_right = blocks_preferred_width($pageblocks[BLOCK_POS_RIGHT]);

    if ($PAGE->user_allowed_editing()) {
        $options = $PAGE->url->params();
        if ($PAGE->user_is_editing()) {
            $caption = get_string('blockseditoff');
            $options['adminedit'] = 'off';
        } else {
            $caption = get_string('blocksediton');
            $options['adminedit'] = 'on';
        }
        $buttons = print_single_button($PAGE->url->out(false), $options, $caption, 'get', '', true);
    }

    $visiblepathtosection = array_reverse($settingspage->visiblepath);
    $navlinks = array();
    foreach ($visiblepathtosection as $element) {
        $navlinks[] = array('name' => $element, 'link' => null, 'type' => 'misc');
    }
    $navigation = build_navigation($navlinks);

    print_header("$SITE->shortname: " . implode(": ",$visiblepathtosection), $SITE->fullname, $navigation, $focus, '', true, $buttons, '');

    echo '<table id="layout-table"><tr>';
    $lt = (empty($THEME->layouttable)) ? array('left', 'middle', 'right') : $THEME->layouttable;
    foreach ($lt as $column) {
        switch ($column) {
            case 'left':
    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>';
            break;
            case 'middle':
    echo '<td id="middle-column">';
    print_container_start();
    echo '<a name="startofcontent"></a>';

    if ($errormsg !== '') {
        notify ($errormsg);

    } else if ($statusmsg !== '') {
        notify ($statusmsg, 'notifysuccess');
    }

    // ---------------------------------------------------------------------------------------------------------------

    echo '<form action="settings.php" method="post" id="adminsettings">';
    echo '<div class="settingsform clearfix">';
    echo $PAGE->url->hidden_params_out();
    echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
    echo '<input type="hidden" name="return" value="'.$return.'" />';
    print_heading($settingspage->visiblename);

    echo $settingspage->output_html();

    echo '<div class="form-buttons"><input class="form-submit" type="submit" value="'.get_string('savechanges','admin').'" /></div>';

    echo '</div>';
    echo '</form>';

    print_container_end();
    echo '</td>';
            break;
            case 'right':
    if (blocks_have_content($pageblocks, BLOCK_POS_RIGHT)) {
        echo '<td style="width: '.$preferred_width_right.'px;" id="right-column">';
        print_container_start();
        blocks_print_group($PAGE, $pageblocks, BLOCK_POS_RIGHT);
        print_container_end();
        echo '</td>';
    }
            break;
        }
    }
    echo '</tr></table>';
}

print_footer();

?>