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Iterate Media Tree - .NET UserControl Options
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psterling@homax
Posted: Friday, May 16, 2008 7:33:35 PM

Rank: Fanatic

Joined: 10/30/2007
Posts: 215
Location: Bellingham
I'm a bit hung up on this one, any pointers or solutions would be appreciated.

I'd like to iterate through the Umbraco Media Tree in order to display a list of folders (in the proper hierarchy). I know that T. Hoehler has done this for his Utilities for Umbraco, but in this case I'm looking for a fairly simple approach to include in a user control.

I also noted this thread, but it appears to be open still: http://forum.umbraco.org/yaf_postst2179_How-to-get-the-MediaTreeRoot-using-C.aspx

I can get as far as listing the Media Nodes and determining the ContentType ("Folder" in this case), but can't seem to get to the next step (nodeName, ParentId, etc...)

Code:
           
Media[] m = umbraco.cms.businesslogic.media.Media.GetRootMedias();

            for (int i = 0; i < m.Length; i++)
            {
                if (m[i].ContentType.Alias.Equals("Folder"))
                {...


Thanks, -Paul
motusconnect.com :: level-2 certified :: MVP 2008/2009
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drobar
Posted: Friday, May 16, 2008 10:17:45 PM

Rank: Umbracoholic

Joined: 9/8/2006
Posts: 1,698
Location: KY, USA
Can you just use the GetMedia() function for each folder and set the boolean to go deep?

(not that I've ever done it, but that's how I expect it to work :)

cheers,
doug.
MVP 2007-2009 - Official Umbraco Trainer for North America - Percipient Studios
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jHodgkinson
Posted: Saturday, May 17, 2008 5:00:16 AM
Rank: Fanatic

Joined: 3/15/2007
Posts: 378
Location: Cary, NC USA
Paul - not sure if this helps or not but here's some code I use to index media files (variant of umbraco logic):

Code:


        public static Guid _mediaObjectType = new Guid("b796f64c-1f99-4ffb-b886-4bf4bc011a9c");

        /// <summary>
        /// Retrieve a list of all medias and folders
        /// </summary>
        /// <returns></returns>
        public static umbraco.cms.businesslogic.media.Media[] GetAllMediaItems()
        {
            Guid[] mediaNodeIds = umbraco.cms.businesslogic.CMSNode.getAllUniquesFromObjectType(_mediaObjectType);

            umbraco.cms.businesslogic.media.Media[] retval = new umbraco.cms.businesslogic.media.Media[mediaNodeIds.Length];
            for (int i = 0; i < mediaNodeIds.Length; i++)
            {
                umbraco.cms.businesslogic.media.Media d = new umbraco.cms.businesslogic.media.Media(mediaNodeIds[i]);
                retval[i] = d;
            }
            return retval;
        }
    
        public static string Index()
       {

        ........

            umbraco.cms.businesslogic.media.Media[] medias = GetAllMediaItems();
            foreach (umbraco.cms.businesslogic.media.Media mediaItem in medias)
            {
                try
                {
                    if (mediaItem.ContentType.Alias == "File" && (";" + Settings.MediaTypesToIndex + ";").IndexOf(";" + mediaItem.Text.Split('.').GetValue(1).ToString() + ";") > -1)
                    {
                        XmlDocument doc = new XmlDocument();
                        if (AddNodeToIndex(mediaItem.ToXml(doc, true), writer, excludeIds))
                            mediaCounter++;
                    }
                }
                catch { }
            }

       .........
       }
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psterling@homax
Posted: Monday, May 19, 2008 10:10:32 PM

Rank: Fanatic

Joined: 10/30/2007
Posts: 215
Location: Bellingham
Thanks John -

That got me on the right track! The below iterates the media tree, from here I apply the output to a TreeView control or whatever else makes sense.

Code:
           
          Media[] m = GetAllMediaItems();  // see John's post above

            for (int i = 0; i < m.Length; i++)
            {
                if (m[i].ContentType.Alias.Equals("Folder"))
                { 
                    output += m[i].Id.ToString() + " is a folder :: ";
                    output += m[i].Text + " is the Name :: ";

                    if (m[i].Level > 1)
                        output += m[i].Parent.Id.ToString() + " is the Parent :: ";
                }            
            }


-Paul
motusconnect.com :: level-2 certified :: MVP 2008/2009
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jHodgkinson
Posted: Tuesday, May 20, 2008 7:44:05 PM
Rank: Fanatic

Joined: 3/15/2007
Posts: 378
Location: Cary, NC USA
sweet - good deal...
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