/**
* Checks if a whole branch of pages exists
*
* Tests the branch under $pid (like doesRecordExist). It doesn't test the page with $pid as uid. Use doesRecordExist() for this purpose
* Returns an ID-list or "" if OK. Else -1 which means that somewhere there was no permission (eg. to delete).
* if $recurse is set, then the function will follow subpages. This MUST be set, if we need the idlist for deleting pages or else we get an incomplete list
*
* @param string List of page uids, this is added to and outputted in the end
* @param integer Page ID to select subpages from.
* @param integer Perms integer to check each page record for.
* @param boolean Recursion flag: If set, it will go out through the branch.
* @return string List of integers in branch
*/
function doesBranchExist($inList, $pid, $perms, $recurse)
{
global $TCA;
$pid = intval($pid);
$perms = intval($perms);
if ($pid >= 0) {
$mres = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid, perms_userid, perms_groupid, perms_user, perms_group, perms_everybody', 'pages', 'pid=' . intval($pid) . $this->deleteClause('pages'), '', 'sorting');
while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($mres)) {
if ($this->admin || $this->BE_USER->doesUserHaveAccess($row, $perms)) {
// IF admin, then it's OK
$inList .= $row['uid'] . ',';
if ($recurse) {
// Follow the subpages recursively...
$inList = $this->doesBranchExist($inList, $row['uid'], $perms, $recurse);
if ($inList == -1) {
return -1;
}
// No permissions somewhere in the branch
}
} else {
return -1;
// No permissions
}
}
$GLOBALS['TYPO3_DB']->sql_free_result($mres);
}
return $inList;
}