Skip to main content

How to Create a Folder Structure with the Core Service?

This topic has been asked recently on StackOverflow. The question was how to create a Folder (or actually a series of nested Folders) like /aaa/bbb/ccc/ddd using the Core Service in Tridion 2011SP1?

The answer is you have to create each individual Folder as a sub-folder of an existing parent. This means the approach is very well suited to be handled with a recursive call.

I created a method called GetOrCreate(path) that checks if the path exists. If it does, it returns the FolderData object. Otherwise, it splits the path into a parent path and a new folder name and applies recursion on the parent path. On the way out of the recursion, the new folders are created as children of the (by now) existing parents.

private FolderData GetOrCreateFolder(string folderPath, SessionAwareCoreServiceClient client)
{
    ReadOptions readOptions = new ReadOptions();

    if (client.IsExistingObject(folderPath))
    {
        return client.Read(folderPath, readOptions) as FolderData;
    }
    else
    {
        int lastSlashIdx = folderPath.LastIndexOf("/");
        string newFolder = folderPath.Substring(lastSlashIdx + 1);
        string parentFolder = folderPath.Substring(0, lastSlashIdx);
        FolderData parentFolderData = GetOrCreateFolder(parentFolder, client);
        FolderData newFolderData = client.GetDefaultData(ItemType.Folder, parentFolderData.Id) as FolderData;
        newFolderData.Title = newFolder;

        return client.Save(newFolderData, readOptions) as FolderData;
    }
}

Note: the method does not validate the folderPath. Rather, it expects it to be syntactically correct and its stem to represent a valid and existing Publication WebDAV URL.

Call this method using a construct like this:

    FolderData folderData = GetOrCreateFolder(
        "/webdav/020 Content/Building Blocks/aaa/bbb/ccc",
        new SessionAwareCoreServiceClient());

You cal also use a CoreServiceSession, as described in my earlier post.

Comments

Nivlong said…
I love being able to Google a Tridion question to find Yet Another example on your blog, Mihai. Definitely helped with some "folder export" code I wanted to try.

"Just say no" to manual folder creation!

Popular posts from this blog

Toolkit - Dynamic Content Queries

This post if part of a series about the  File System Toolkit  - a custom content delivery API for SDL Tridion. This post presents the Dynamic Content Query capability. The requirements for the Toolkit API are that it should be able to provide CustomMeta queries, pagination, and sorting -- all on the file system, without the use third party tools (database, search engines, indexers, etc). Therefore I had to implement a simple database engine and indexer -- which is described in more detail in post Writing My Own Database Engine . The querying logic does not make use of cache. This means the query logic is executed every time. When models are requested, the models are however retrieved using the ModelFactory and those are cached. Query Class This is the main class for dynamic content queries. It is the entry point into the execution logic of a query. The class takes as parameter a Criterion (presented below) which triggers the execution of query in all sub-criteria of a Criterio

A DD4T.net Implementation - Custom Binary Publisher

The default way to publish binaries in DD4T is implemented in class DD4T.Templates.Base.Utils.BinaryPublisher and uses method RenderedItem.AddBinary(Component) . This produces binaries that have their TCM URI as suffix in their filename. In my recent project, we had a requirement that binary file names should be clean (without the TCM URI suffix). Therefore, it was time to modify the way DD4T was publishing binaries. The method in charge with publishing binaries is called PublishItem and is defined in class BinaryPublisher . I therefore extended the BinaryPublisher and overrode method PublishItem. public class CustomBinaryPublisher : BinaryPublisher { private Template currentTemplate; private TcmUri structureGroupUri; In its simplest form, method PublishItem just takes the item and passes it to the AddBinary. In order to accomplish the requirement, we must specify a filename while publishing. This is the file name part of the binary path of Component.BinaryConten

Scaling Policies

This post is part of a bigger topic Autoscaling Publishers in AWS . In a previous post we talked about the Auto Scaling Groups , but we didn't go into details on the Scaling Policies. This is the purpose of this blog post. As defined earlier, the Scaling Policies define the rules according to which the group size is increased or decreased. These rules are based on instance metrics (e.g. CPU), CloudWatch custom metrics, or even CloudWatch alarms and their states and values. We defined a Scaling Policy with Steps, called 'increase_group_size', which is triggered first by the CloudWatch Alarm 'Publish_Alarm' defined earlier. Also depending on the size of the monitored CloudWatch custom metric 'Waiting for Publish', the Scaling Policy with Steps can add a difference number of instances to the group. The scaling policy sets the number of instances in group to 1 if there are between 1000 and 2000 items Waiting for Publish in the queue. It also sets the