umbracolibrarygetmedia only finding node on first try after republish entire site - API Questions

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Rob Stevenson-Leggett 38 posts 110 karma points

Dec 10, 2010 @ 17:06

umbraco.library.GetMedia only finding node on first try after Republish Entire Site

Hi,

Strange problem with a 4.5.2 site.

I'm using umbraco.library.GetMedia in some backend code. Here's the code:

public string GetMediaFile(string nodeId)
{
      string url = String.Empty;
      int mediaId = 0;
      if (Int32.TryParse(nodeId, out mediaId))
      {
          XPathNodeIterator xn = umbraco.library.GetMedia(mediaId, false);
          //This movenext fails on the second request
          if (xn.MoveNext())
          {
              XPathNodeIterator xn2 = xn.Current.Select("data[@alias='umbracoFile']");
              if (xn2.MoveNext())
              {
                    url = xn2.Current.Value;
              }
          }
       }
       return url;
}

The thing is it only returns the media item on the first request after a republish.

Very strange. Would anyone have any idea why this might be happening?

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Rob Stevenson-Leggett 38 posts 110 karma points

Dec 10, 2010 @ 17:10
0
Just discovers that setting the umbraco library cache duration to 0 fixes the problem - so something is wrong with the cache? Or should I be using another method to get media url in codebehind?
```
<UmbracoLibraryCacheDuration>0</UmbracoLibraryCacheDuration>
```
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Morten Bock 1867 posts 2140 karma points MVP 2x admin c-trib

Dec 10, 2010 @ 18:34

I was looking at the source, and it seems that there might be a bug.

What does it return if you do this:

public string GetMediaFile(string nodeId)
{
    string url = String.Empty;
    int mediaId = 0;
    if (Int32.TryParse(nodeId, out mediaId))
    {
        XPathNodeIterator xn = umbraco.library.GetMedia(mediaId, false);
        //This movenext fails on the second request
        if (xn.MoveNext())
        {
            return xn.Current.OuterXml;
        }
    }
    return url;
}

I'm guessing you might get something like "<error>No media is maching '{0}'</error>"

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Carlos 338 posts 472 karma points

Aug 06, 2012 @ 20:21

0

We have had the same issue happen to use for about 6-7 months now and could not figure out the issue, but it was happening with our XSLT files. Thanks for the find, but that is kind of a horky fix. Caching would be nice. Is there a fix? We are using Umbraco 4.7.1

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