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contextmove.php
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contextmove.php
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<?php // $Id$
/**
* Allows someone with appropriate permissions to move a category and associated
* files to another context.
*
* @author Jamie Pratt
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
* @package questionbank
*/
require_once("../config.php");
require_once($CFG->dirroot."/question/editlib.php");
require_once($CFG->dirroot."/question/contextmove_form.php");
list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) = question_edit_setup('categories');
// get values from form for actions on this page
$toparent = required_param('toparent', PARAM_SEQUENCE);
$cattomove = required_param('cattomove', PARAM_INT);
$totop = optional_param('totop', 0, PARAM_INT); // optional param moves category to top of peers. Default is
//to add it to the bottom.
$onerrorurl = $CFG->wwwroot.'/question/category.php?'.$thispageurl->get_query_string();
list($toparent, $contextto) = explode(',', $toparent);
if (!empty($toparent)){//not top level category, make it a child of $toparent
if (!$toparent = get_record('question_categories', 'id', $toparent)){
print_error('Invalid category id for parent!', '', $onerrorurl);
}
$contextto = $toparent->contextid;
} else {
$toparent = new object();
$toparent->id = 0;
$toparent->contextid = $contextto;
}
if (!$cattomove = get_record('question_categories', 'id', $cattomove)){
print_error('Invalid category id to move!', '', $onerrorurl);
}
if ($cattomove->contextid == $contextto){
print_error("You shouldn't have got here if you're not moving a category to another context.", '', $onerrorurl);
}
$cattomove->categorylist = question_categorylist($cattomove->id);
$thispageurl->params(array('cattomove'=>$cattomove->id,
'toparent'=>"{$toparent->id},{$toparent->contextid}",
'totop'=>$totop));
$contextfrom = get_context_instance_by_id($cattomove->contextid);
$contextto = get_context_instance_by_id($contextto);
$contexttostring = print_context_name($contextto);
require_capability('moodle/question:managecategory', $contextfrom);
require_capability('moodle/question:managecategory', $contextto);
$fromcoursefilesid = get_filesdir_from_context($contextfrom);//siteid or courseid
$tocoursefilesid = get_filesdir_from_context($contextto);//siteid or courseid
if ($fromcoursefilesid != $tocoursefilesid){
$questions = get_records_select('question', "category IN ({$cattomove->categorylist})");
$urls = array();
if ($questions){
foreach ($questions as $id => $question){
$QTYPES[$questions[$id]->qtype]->get_question_options($questions[$id]);
$urls = array_merge_recursive($urls, $QTYPES[$questions[$id]->qtype]->find_file_links($questions[$id], $fromcoursefilesid));
}
}
ksort($urls);
} else {
$urls = array();
}
$brokenurls = array();
foreach (array_keys($urls) as $url){
if (!file_exists($CFG->dataroot."/$fromcoursefilesid/".$url)){
$brokenurls[] = $url;
}
}
if ($fromcoursefilesid == SITEID){
$fromareaname = get_string('filesareasite', 'question');
} else {
$fromareaname = get_string('filesareacourse', 'question');
}
if ($tocoursefilesid == SITEID){
$toareaname = get_string('filesareasite', 'question');
} else {
$toareaname = get_string('filesareacourse', 'question');
}
$contextmoveform = new question_context_move_form($thispageurl,
compact('urls', 'fromareaname', 'toareaname', 'brokenurls',
'fromcoursefilesid', 'tocoursefilesid'));
if ($contextmoveform->is_cancelled()){
$thispageurl->remove_params('cattomove', 'toparent', 'totop');
redirect($CFG->wwwroot."/question/category.php?".$thispageurl->get_query_string());
}elseif ($moveformdata = $contextmoveform->get_data()) {
if (isset($moveformdata->urls) && is_array($moveformdata->urls)){
check_dir_exists($CFG->dataroot."/$tocoursefilesid/", true);
$flipurls = array_keys($urls);
foreach ($moveformdata->urls as $key => $urlaction){
$source = $CFG->dataroot."/$fromcoursefilesid/".$flipurls[$key];
$destination = $flipurls[$key];
if (($urlaction != QUESTION_FILEDONOTHING) && ($urlaction != QUESTION_FILEMOVELINKSONLY)){
// Ensure the target folder exists.
check_dir_exists(dirname($CFG->dataroot."/$tocoursefilesid/".$destination), true);
// Then make sure the destination file name does not exist. If it does, change the name to be unique.
while (file_exists($CFG->dataroot."/$tocoursefilesid/".$destination)){
$matches = array();
//check for '_'. copyno after filename, before extension.
if (preg_match('!\_([0-9]+)(\.[^\.\\/]+)?$!', $destination, $matches)){
$copyno = $matches[1]+1;
} else {
$copyno = 1;
}
//replace old copy no with incremented one.
$destination = preg_replace('!(\_[0-9]+)?(\.[^\.\\/]+)?$!', '_'.$copyno.'\\2', $destination, 1);
}
}
switch ($urlaction){
case QUESTION_FILECOPY :
if (!copy($source, $CFG->dataroot."/$tocoursefilesid/".$destination)){
print_error('errorfilecannotbecopied', 'question', $onerrorurl, $source);
}
break;
case QUESTION_FILEMOVE :
if (!rename($source, $CFG->dataroot."/$tocoursefilesid/".$destination)){
print_error('errorfilecannotbemoved', 'question', $onerrorurl, $source);
}
break;
case QUESTION_FILEDONOTHING :
case QUESTION_FILEMOVELINKSONLY :
break;
default :
print_error('Invalid action selected!', '', $onerrorurl);
}
switch ($urlaction){
//now search and replace urls in questions.
case QUESTION_FILECOPY :
case QUESTION_FILEMOVE :
case QUESTION_FILEMOVELINKSONLY :
$url = $flipurls[$key];
$questionids = array_unique($urls[$url]);
foreach ($questionids as $questionid){
$question = $questions[$questionid];
$QTYPES[$question->qtype]->replace_file_links($question, $fromcoursefilesid, $tocoursefilesid, $url, $destination);
}
break;
case QUESTION_FILEDONOTHING :
default :
break;
}
}
}
//adjust sortorder before we make the cat a peer of it's new peers
$peers = get_records_select_menu('question_categories', "contextid = {$toparent->contextid} AND ".
"parent = {$toparent->id}", "sortorder ASC",
"id, id");
$peers = array_keys($peers);
if ($totop){
array_unshift($peers, $cattomove->id);
} else {
$peers[] = $cattomove->id;
}
$sortorder = 0;
foreach ($peers as $peer) {
if (! set_field('question_categories', "sortorder", $sortorder, "id", $peer)) {
print_error('listupdatefail', '', $onerrorurl);
}
$sortorder++;
}
//now move category
$cat = new object();
$cat->id = $cattomove->id;
$cat->parent = $toparent->id;
//set context of category we are moving and all children also!
if (!execute_sql("UPDATE {$CFG->prefix}question_categories SET contextid = {$contextto->id} WHERE id IN ({$cattomove->categorylist})", false)){
print_error("Could not move the category '$newname' to ".$contexttostring, '', $onerrorurl);
}
//finally set the new parent id
if (!update_record("question_categories", $cat)) {
print_error("Could not update the category '$updatename'", '', $onerrorurl);
}
$thispageurl->remove_params('cattomove', 'toparent', 'totop');
redirect($CFG->wwwroot."/question/category.php?".$thispageurl->get_query_string(array('cat'=>"{$cattomove->id},{$contextto->id}")));
}
$streditingcategories = get_string('editcategories', 'quiz');
$crumbs = array();
if ($cm!==null) {
// Page header
$strupdatemodule = has_capability('moodle/course:manageactivities', $contexts->lowest())
? update_module_button($cm->id, $COURSE->id, get_string('modulename', $cm->modname))
: "";
$crumbs[] = array('name' => get_string('modulenameplural', $cm->modname),
'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$COURSE->id",
'type' => 'activity');
$crumbs[] = array('name' => format_string($module->name),
'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?id={$cm->id}",
'type' => 'title');
} else {
// Print basic page layout.
$strupdatemodule = '';
}
$crumbs[] = array('name' => $streditingcategories, 'link' => $thispageurl->out(), 'type' => 'title');
$crumbs[] = array('name' => get_string('movingcategory', 'question'), 'link' => '', 'type' => 'title');
$navigation = build_navigation($crumbs);
print_header_simple($streditingcategories, '', $navigation, "", "", true, $strupdatemodule);
// print tabs
if ($cm!==null) {
$currenttab = 'edit';
$mode = 'categories';
${$cm->modname} = $module;
include($CFG->dirroot."/mod/{$cm->modname}/tabs.php");
} else {
$currenttab = 'categories';
$context = $contexts->lowest();
include('tabs.php');
}
//parameter for get_string
$cattomove->contextto = $contexttostring;
if (count($urls)){
$defaults = array();
for ($default_key = 0; $default_key < count($urls); $default_key++){
$defaults['urls'][$default_key] = QUESTION_FILECOPY;
}
$contextmoveform->set_data($defaults);
//some parameters for get_string
$cattomove->urlcount = count($urls);
$cattomove->toareaname = $toareaname;
$cattomove->fromareaname = $fromareaname;
print_box(get_string('movingcategoryandfiles', 'question', $cattomove), 'boxwidthnarrow boxaligncenter generalbox');
} else {
print_box(get_string('movingcategorynofiles', 'question', $cattomove), 'boxwidthnarrow boxaligncenter generalbox');
}
$contextmoveform->display();
print_footer($COURSE);
?>