updating media properties on upload - API Questions

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James Jackson-South 489 posts 1747 karma points c-trib

Jun 06, 2015 @ 13:46

Updating media properties on upload.

API Questions

I'm intercepting image uploads to resize images to a maximum size. Easy-peasy except...

I can't seem to get the IMedia properties to update.

// Tap into the Saving event
MediaService.Saving += (sender, args) =>
{
    // Resize code removed for brevity. It works.

    // Set the correct meta values for the image.
    media.SetValue(Constants.Conventions.Media.Width, newWidth);
    media.SetValue(Constants.Conventions.Media.Height, newHeight);
    media.SetValue(Constants.Conventions.Media.Bytes, bytes);
    sender.Save(media, 0, false);
}

Am I saving those values at the wrong time?

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Sebastiaan Janssen 5053 posts 15508 karma points MVP admin hq

Jun 06, 2015 @ 16:01

0

I hope your not doing GetById to get the media item else your writing to it before it's saving so it will then not save anything.

In other words: show your var media = ... something ? :)

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James Jackson-South 489 posts 1747 karma points c-trib

Jun 06, 2015 @ 16:16

0

Nah... I'm looping through the args.SavedEntities enumerable. Basically an enhanced version of the preprocessing example here. http://24days.in/umbraco/2014/all-your-images-are-belong-to-umbraco/

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Morten Bock 1867 posts 2140 karma points MVP 2x admin c-trib

Jun 06, 2015 @ 23:11

0

Could it be that your "saving" event happens before the core code sets the same properties?

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Morten Bock 1867 posts 2140 karma points MVP 2x admin c-trib

Jun 06, 2015 @ 23:34
100
EDIT: My sample was a false positive! Refreshing the media revealed that it was in fact not saved, just modified for display.

Fixed sample:
```
MediaService.Saved += (sender, e) =>
{
    foreach (IMedia entity in e.SavedEntities)
    {
        entity.SetValue(Constants.Conventions.Media.Width, 8878);
        sender.Save(entity, 0, false);
    }
};
```
The above seems to work.
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James Jackson-South 489 posts 1747 karma points c-trib

Jun 07, 2015 @ 15:29

0

Yeah that get's it Morten thanks. I thought it was probably a timing issue.

Morten Christensen reckons this is the probable cause of my issue.

https://github.com/umbraco/Umbraco-CMS/blob/07e9a3a4ea27e167816e2cce8cea1b89258b01a8/src/Umbraco.Web/Strategies/DataTypes/LegacyUploadFieldWorkaround.cs

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