function checkAddNode($pid, $isConnector, $link1, $link2, $link3)
{
$count = getCountByPid($pid);
if ($count >= 6) {
return "Pattern is full";
}
if ($isConnector == 1) {
if (getConnectorByPid($pid) != null) {
return "already exist a connector in this pattern";
}
} elseif ($isConnector == 0) {
if (getConnectorByPid($pid) == null) {
return "This pattern do not exist,please create a connector for it";
}
if ($link1 == null && $link2 == null && $link3 == null) {
return "A normal node must need to connect to the other node(s)";
}
}
if (getLinkCountByNid($link1) >= 3) {
return "Can not connect to Node" . $link1 . " because it has already connected with three nodes";
}
if (getLinkCountByNid($link2) >= 3) {
return "Can not connect to Node" . $link2 . " because it has already connected with three nodes";
}
if (getLinkCountByNid($link3) >= 3) {
return "Can not connect to Node" . $link3 . " because it has already connected with three nodes";
}
return "true";
}
// return;
}
if (count($nodes1) < 1) {
echo "You need to connect to at least one node\n";
$flag = false;
}
if ($flag) {
insertNode($nid, 1, $pid, $pName, $nName, "yes", $did);
foreach ($nodes1 as $key => $value) {
insertLink($nid, $value);
}
echo "success";
}
} else {
$pid = $_POST['pid'];
$count = getCountByPid($pid);
if ($count >= 6) {
echo "The pattern is full\n";
$flag = false;
}
$nodes0 = $_POST['nodes0'];
if ($nodes0 == null) {
echo "You need to connect to at least one node\n";
$flag = false;
}
if (count($nodes0) == 0) {
echo "You need to connect to at least one node\n";
$flag = false;
}
if (count($nodes0) > 3) {
echo "Please select at most three nodes\n";
