/// <summary>
/// Implements a LevelOrder traversal algorithm to write the tree model data
/// into a SQLite database file.
/// </summary>
/// <param name="solutionRoot"></param>
private int WriteToFile(ISolutionModel solutionRoot
, SQLiteCommand cmd)
{
int result = 0;
int iKey = 0;
var items = TreeLib.BreadthFirst.Traverse.LevelOrder <IItemModel>(solutionRoot.Root
, (i) =>
{
var it = i as IItemChildrenModel;
if (it != null)
{
return(it.Children);
}
// Emulate an emtpy list if items have no children
return(new List <IItemChildrenModel>());
});
foreach (var item in items)
{
int iLevel = item.Level;
IItemModel current = item.Node;
current.Id = iKey++;
long parentId = (current.Parent == null ? -1 : current.Parent.Id);
if (cmd != null)
{
cmd.Parameters.AddWithValue("@id", current.Id);
cmd.Parameters.AddWithValue("@parent", parentId);
cmd.Parameters.AddWithValue("@level", iLevel);
cmd.Parameters.AddWithValue("@name", current.DisplayName);
cmd.Parameters.AddWithValue("@itemtypeid", (int)(current.ItemType));
result += cmd.ExecuteNonQuery();
}
else
{
Console.WriteLine(string.Format("{0,4} - {1} ({2})"
, iLevel, current.GetStackPath(), current.ItemType.ToString()));
}
}
return(result);
}