/// <summary>
/// Creates a directory
/// </summary>
/// <param name="parent">Parent</param>
/// <param name="name">Name</param>
/// <param name="comment">Comment</param>
/// <returns>Rhe directory</returns>
static public IBufferDirectory Create(this IBufferDirectory parent, string name,
string comment)
{
if (parent.GetDirectoryNames().Contains(name))
{
throw new Exception(name + " already exists");
}
IBufferDirectory result = new BufferDirectoryWrapper(parent as BufferDirectoryWrapper,
data.Create(parent.Id, name, comment));
StaticExtensionDataPerformerInterfaces.Data.SubmitChanges();
return(result);
}
/// <summary>
/// Creates a tree
/// </summary>
/// <param name="data">Database interface</param>
/// <returns>roots of trees</returns>
static IBufferDirectory[] CreateTree(this IDatabaseInterface data)
{
Dictionary <object, IParentSet> dictionary = new Dictionary <object, IParentSet>();
IEnumerable <object> list = data.Elements;
List <IBufferDirectory> directories = new List <IBufferDirectory>();
foreach (object o in list)
{
IBufferItem item = data[o];
IParentSet ps = null;
if (item is IBufferData)
{
ps = new BufferItemWrapper(item as IBufferData);
}
else
{
ps = new BufferDirectoryWrapper(item);
}
dictionary[o] = ps;
}
foreach (IParentSet ps in dictionary.Values)
{
IBufferItem it = (ps as IBufferItem);
object o = it.ParentId;
if (!o.Equals(it.Id))
{
if (dictionary.ContainsKey(o))
{
ps.Parent = dictionary[o] as IBufferItem;
}
}
}
List <IBufferDirectory> l = new List <IBufferDirectory>();
foreach (IParentSet ps in dictionary.Values)
{
if (ps is IBufferDirectory)
{
IBufferDirectory item = (ps as IBufferDirectory);
if (item.Parent == null)
{
l.Add(item);
}
}
}
return(l.ToArray());
}
