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Code Issues Projects Releases Packages Wiki Activity Actions

Wiki enhancement: edit locking (uses AJAX)

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This commit is contained in:
sam_marshall 2006-09-25 17:42:32 +00:00
parent f775a510d6
commit 22e846cde2
10 changed files with 291 additions and 11 deletions
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118
mod/wiki/view.php
View file

@ -2,11 +2,12 @@
/// Extended by Michael Schneider
/// This page prints a particular instance of wiki
global $CFG;
global $CFG,$USER;
require_once("../../config.php");
require_once("lib.php");
#require_once("$CFG->dirroot/course/lib.php"); // For side-blocks
#require_once("$CFG->dirroot/course/lib.php"); // For side-blocks
require_once(dirname(__FILE__).'/../../lib/ajax/ajaxlib.php');
$ewiki_action = optional_param('ewiki_action', '', PARAM_ALPHA); // Action on Wiki-Page
$id = optional_param('id', 0, PARAM_INT); // Course Module ID, or
@ -21,6 +22,27 @@
// Only want to add edit log entries if we have made some changes ie submitted a form
$editsave = optional_param('thankyou', '');
if($page) {
// Split page command into action and page
$actions = explode('/', $page,2);
if(count($actions)==2) {
$pagename=$actions[1];
}
} else {
$actions=array('');
$pagename='';
}
// If true, we are 'really' on an editing page, not just on edit/something
$reallyedit=$actions[0]=='edit' && !$editsave && !$canceledit;
if(!$reallyedit && isset($_SESSION['lockid'])) {
if(!delete_records('wiki_locks','id',$_SESSION['lockid'])) {
unset($_SESSION['lockid']);
error("Unable to delete lock record. ".$_SESSION['lockid']);
}
unset($_SESSION['lockid']);
}
if ($id) {
if (! $cm = get_coursemodule_from_id('wiki', $id)) {
error("Course Module ID was incorrect");
@ -370,12 +392,100 @@
/// actions will have the form [action]/[pagename]. If the action is 'view' or the '/'
/// isn't there (so the action defaults to 'view'), filter it.
/// If the page does not yet exist, the display will default to 'edit'.
$actions = explode('/', $page);
if((count($actions) < 2 || $actions[0] == "view") &&
record_exists('wiki_pages', 'pagename', addslashes($page), 'wiki', $wiki_entry->id)) {
print(format_text($content, $moodle_format));
} else if($actions[0]=='edit' && $reallyedit) {
// Check the page isn't locked before printing out standard wiki content. (Locking
// is implemented as a wrapper over the existing wiki.)
$goahead=true;
$alreadyownlock=false;
if($lock=get_record('wiki_locks','pagename',$pagename,'wikiid', $wiki->id)) {
// Consider the page locked if the lock has been confirmed within WIKI_LOCK_PERSISTENCE seconds
if($lock->lockedby==$USER->id) {
// Cool, it's our lock, do nothing
$alreadyownlock=true;
$lockid=$lock->id;
} else if(time()-$lock->lockedseen < WIKI_LOCK_PERSISTENCE) {
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
$canoverridelock = has_capability('mod/wiki:overridelock', $modcontext);
$a=new stdClass;
$a->since=userdate($lock->lockedsince);
$a->seen=userdate($lock->lockedseen);
$user=get_record('user','id',$lock->lockedby);
$a->name=fullname($user,
has_capability('moodle/site:viewfullnames', $modcontext));
print_string('pagelocked','wiki',$a);
if($canoverridelock) {
$pageesc=htmlspecialchars($page);
$stroverrideinfo=get_string('overrideinfo','wiki');
$stroverridebutton=get_string('overridebutton','wiki');
$sesskey=sesskey();
print "
<form id='overridelock' method='post' action='overridelock.php'>
<input type='hidden' name='sesskey' value='$sesskey' />
<input type='hidden' name='id' value='$id' />
<input type='hidden' name='page' value='$pageesc' />
$stroverrideinfo
<input type='submit' value='$stroverridebutton' />
</form>
";
}
$goahead=false;
} else {
// Not locked any more. Get rid of the lock record.
if(!delete_records('wiki_locks','pagename',$pagename,'wikiid', $wiki->id)) {
error('Unable to delete lock record');
}
}
}
if($goahead) {
if(!$alreadyownlock) {
// Lock page
$newlock=new stdClass;
$newlock->lockedby=$USER->id;
$newlock->lockedsince=time();
$newlock->lockedseen=$newlock->lockedsince;
$newlock->wikiid=$wiki->id;
$newlock->pagename=$pagename;
if(!$lockid=insert_record('wiki_locks',$newlock)) {
error('Unable to insert lock record');
}
}
$_SESSION['lockid']=$lockid;
// Require AJAX library
print_require_js(array('yui_yahoo','yui_connection'));
$strlockcancelled=get_string('lockcancelled','wiki');
$intervalms=WIKI_LOCK_RECONFIRM*1000;
print "
<script type='text/javascript'>
var intervalID;
function handleResponse(o) {
if(o.responseText=='cancel') {
document.forms['ewiki'].elements['preview'].disabled=true;
document.forms['ewiki'].elements['save'].disabled=true;
clearInterval(intervalID);
alert('$strlockcancelled');
}
else {
}
function handleFailure(o) {
// Ignore for now
}
intervalID=setInterval(function() {
YAHOO.util.Connect.asyncRequest('POST','confirmlock.php',
{success:handleResponse,failure:handleFailure},'lockid=$lockid');
},$intervalms);
</script>
";
// Print editor etc
print $content;
}
} else {
print $content;
}
print $content2;