Choosing the right method for a custom traversal

@jensens thank you for your input!

I tried to follow your suggestions, but now I got a problem with image resolveuid.. the way I added the adapter make all traverse for my object fall into my view https://github.com/collective/collective.liveblog/pull/25/commits/32cf761a6f56022ad153dced449df96dcdda3a24

Obviously I did something wrong, any help would be appreciated!