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<?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/>.
/**
* Delete wiki pages or versions
*
* This will show options for deleting wiki pages or purging page versions
* If user have wiki:managewiki ability then only this page will show delete
* options
*
* @package mod-wiki-2.0
* @copyright 2011 Rajesh Taneja
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../../config.php');
require_once($CFG->dirroot . '/mod/wiki/lib.php');
require_once($CFG->dirroot . '/mod/wiki/locallib.php');
require_once($CFG->dirroot . '/mod/wiki/pagelib.php');
$pageid = required_param('pageid', PARAM_INT); // Page ID
$delete = optional_param('delete', 0, PARAM_INT); // ID of the page to be deleted.
$option = optional_param('option', 1, PARAM_INT); // Option ID
$listall = optional_param('listall', 0, PARAM_INT); // list all pages
$toversion = optional_param('toversion', 0, PARAM_INT); // max version to be deleted
$fromversion = optional_param('fromversion', 0, PARAM_INT); // min version to be deleted
if (!$page = wiki_get_page($pageid)) {
print_error('incorrectpageid', 'wiki');
}
if (!$subwiki = wiki_get_subwiki($page->subwikiid)) {
print_error('incorrectsubwikiid', 'wiki');
}
if (!$cm = get_coursemodule_from_instance("wiki", $subwiki->wikiid)) {
print_error('invalidcoursemodule');
}
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
if (!$wiki = wiki_get_wiki($subwiki->wikiid)) {
print_error('incorrectwikiid', 'wiki');
}
require_login($course->id, true, $cm);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
require_capability('mod/wiki:managewiki', $context);
add_to_log($course->id, "wiki", "admin", "admin.php?pageid=".$page->id, $page->id, $cm->id);
//Delete page if a page ID to delete was supplied
if (!empty($delete) && confirm_sesskey()) {
wiki_delete_pages($context, $delete, $page->subwikiid);
//when current wiki page is deleted, then redirect user to create that page, as
//current pageid is invalid after deletion.
if ($pageid == $delete) {
$params = array('swid' => $page->subwikiid, 'title' => $page->title);
$url = new moodle_url('/mod/wiki/create.php', $params);
redirect($url);
}
}
//delete version if toversion and fromversion are set.
if (!empty($toversion) && !empty($fromversion) && confirm_sesskey()) {
//make sure all versions should not be deleted...
$versioncount = wiki_count_wiki_page_versions($pageid);
$versioncount -= 1; //ignore version 0
$totalversionstodelete = $toversion - $fromversion;
$totalversionstodelete += 1; //added 1 as toversion should be included
if (($totalversionstodelete >= $versioncount) || ($versioncount <= 1)) {
print_error('incorrectdeleteversions', 'wiki');
} else {
$versions = array();
for ($i = $fromversion; $i <= $toversion; $i++) {
//Add all version to deletion list which exist
if (wiki_get_wiki_page_version($pageid, $i)) {
array_push($versions, $i);
}
}
$purgeversions[$pageid] = $versions;
wiki_delete_page_versions($purgeversions);
}
}
//show actual page
$wikipage = new page_wiki_admin($wiki, $subwiki, $cm);
$wikipage->set_page($page);
$wikipage->print_header();
$wikipage->set_view($option, empty($listall)?true:false);
$wikipage->print_content();
$wikipage->print_footer();
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