Sorry to tell you, that's the answer. The only *normative* way in the spec to find the public referenceable URI of the pict. is to walk the collection. Impl's *could* use the Location uri as the public referenceable uri, but it's not required. Impl's *could* return the atom:entry with the response, but that's an unspecified behavior.
Fixing this problem would require us to adopt something like http://www.intertwingly.net/wiki/pie/PaceFixMediaCollections - James John Panzer wrote: >[snip] > Can someone remind me again of the current status: > > How would a client, written defensively so that it doesn't assume the > server returns the entry rep when posting to a media collection, > retrieve the viewable URL of a cat picture for use in embedding inside > an actual entry containing both pictures and text? > > <content ..><img > src="http://example.org/media/pictures/cat001.jpg"/>Hey, look at this > cool cat!</content> > > If the answer is "you have to retrieve the entire media collection and > walk through it, looking for the picture you just posted"... well, I > really don't want to have to stand up and tell people that when I'm > trying to evangelize the APP. Especially to people who are dealing with > applications with potentially thousands of pictures in a collection. > > -John >
![http://example.org/media/pictures/cat001.jpg"/](http://example.org/media/pictures/cat001.jpg"/){kind=link}