[dev] Ansel Tags

[Chuck Hagenbuch]

Quoting Michael Rubinsky <mike at theupstairsroom.com>:

> So, just to walk through the process *without* related tags - since   
> there would be no way to narrow the tag search, or "browse down' if   
> you will, we'd have to add a 'view similar images' link (in addition  
>  to the individual tag links) to the image and gallery views. So,  
> we'd  be able to view both 1) all resources that match a single tag  
> or 2)  all the tags the resource is tagged with.

I guess I don't see the "view similar" bit as essential, but I might  
be misunderstanding. Either way sounds okay, and I really just need to  
sit down and click through Ansel for a while to figure this out for  
myself.

> The permissions problem also expresses itself with the tag cloud.   
> Since there is no way of knowing if the resources that are tagged  
> with  each tagged are viewable by the current user (witout checking  
> *every*  tagged resource) it's possible to be shown tags in the  
> cloud that  would result in no viewable images on the results page.   
> I think this  one we will either have to live with, or just do  
> without the cloud all  together as I don't see any way of fixing  
> that with the current  permission code.

I think it's fine for the tag cloud to include tags that you might not  
be able to see any images for.

>> cached where possible. I think we need a concept of permission atoms,
>> that can be individually cached and arbitrarily combined. But that's
>> definitely a Horde 4/roles item.
>
> This sounds interesting. Out of curiosity, how would that help in a   
> case like this?  We'd still need to check the indivdidual  
> permissions  of each gallery that contains images that are tagged  
> with our search  tags....

Right, but if those permissions were already calculated, you could  
also cache combinations of them, or do the combinations very quickly.

> Cool! A 1.0 for Ansel!

Yup, I think it's generally complete enough and should be one of the  
FW_3_2 apps.

-chuck