/// <exception cref="InvalidClientDataException">On invalid client input vales.</exception>
public SerializableNtwkNode CreateNode(SerializableNtwkNode node, int parentID = 0)
{
if (node.ID == 0)
{
var modelNode = new NtwkNode();
try {
modelNode.CopyFromSerializable(node);
}
catch (FormatException) {
throw new InvalidClientDataException("Incorrect ip address format.");
}
if (parentID == 0) //root children
{
db.Nodes.Add(modelNode);
db.SaveChanges();
}
else
{
var bruddas = db.Nodes.Include(n => n.Children)
.SingleOrDefault(n => n.ID == parentID)?.Children;
if (bruddas == null)
{
throw new InvalidClientDataException(
"Trying to create node with nonexisting parent.");
}
bruddas.Add(modelNode);
db.SaveChanges();
}
return(db.Nodes.AsNoTracking()
.Include(n => n.Parent)
.Single(n => n.ID == modelNode.ID)
.IntoSerializable());
}
else
{
throw new InvalidClientDataException(
"Only entries with ID=0 are accepted.");
}
}
/// <exception cref="InvalidClientDataException">On invalid client input vales.</exception>
public void UpdateNode(SerializableNtwkNode node, int parentID = 0)
{
if (node.ID != 0)
{
NtwkNode entry = db.Nodes
.Include(n => n.Parent)
.SingleOrDefault(n => n.ID == node.ID);
NtwkNode parent = null;
if (entry == null)
{
throw new InvalidClientDataException(
"Can't update nonexisting node");
}
if (parentID != 0)
{
parent = db.Nodes.Find(parentID);
if (parent == null)
{
throw new InvalidClientDataException(
"Trying to set node's parent to nonexistent entry."
);
}
}
try {
entry.CopyFromSerializable(node);
}
catch (FormatException) {
throw new InvalidClientDataException("Incorrect ip address format.");
}
if (parent != null)
{
entry.Parent = parent;
}
}
db.SaveChanges();
}