private async Task RemoveFolder(FolderDbItem folder, CancellationToken cancellationToken)
{
List <FolderDbItem> subFolders;
int skip = 0;
int limit = 1000;
do
{
subFolders = await context.Folders
.Where(x => x.ParentId == folder.Id && x.UserIdentity == folder.UserIdentity)
.Take(limit)
.Skip(skip)
.ToListAsync(cancellationToken);
foreach (var subFolder in subFolders)
{
await RemoveFolder(subFolder, cancellationToken);
}
skip += limit;
}while (subFolders.Any());
context.Folders.Remove(folder);
}
private static Folder ToModel(FolderDbItem dbItem) => new Folder(
new FolderIdentity(dbItem.Id, dbItem.UserIdentity),
dbItem.Name,
dbItem.ParentId != null? new FolderIdentity(dbItem.ParentId.Value, dbItem.UserIdentity) : null,
dbItem.ParentsPath.Split(',', StringSplitOptions.RemoveEmptyEntries).Select(x => new FolderIdentity(new Guid(x), dbItem.UserIdentity)).ToList());
