Brendan Taylor wrote:
> I'm attempting to use Exhibit for sorting through a large number of
> computer-generated schedules. I think it will do the job, but I have
> a couple of questions that I can't find answers to on the wiki.
>
> Given JSON looking like this:
>
> {
> properties: {
> "sections" : { valueType: "item" }
> },
> "items" : [
> { label : "c1",
> type : "Set",
> sections : [ "s1", "s2", "s3" ],
> },
> { label : "c2",
> type : "Set",
> sections : [ "s1", "s3" ]
> },
> { label : "s1",
> type : "Section",
> course : "E E 238"
> },
> { label : "s2",
> type : "Section",
> course : "MEC E 250"
> },
> { label : "s3",
> type : "Section",
> course : "CLASS 375"
> }
> ]
>
> }
>
> I want users to be able to view specifically Sets containing:
>
> a. a section of a specific course (eg. E E 238, matches c1 and c2)
> b. a combination of sections of a specific course (eg. E E 238+MEC E 250,
> only matches c1)
>
> I've run into two problems so far.
>
> 1. ex:facets on #exhibit-browse-panel only seems to support one-hop
> expressions. When I try ex:facets=".sections.course", I get:
>
> "The expression '.sections.course' used to specify a facet is not valid."
>
It's something on my to-do list--to allow multiple hops in facets. It's
a little trickier to implement than single hops.
> 2. If I just use ex:facets=".sections", I can select Combinations
> containing a certain Section. If I select "s1" and "s2", it will show me
> combinations containing s1 OR s2. I want it to show me combinations
> containing s1 AND s2. (ex:facets=".sections, .sections" just confuses
> Exhibit)
>
You're right. The current behavior is OR. I wonder how the facet's UI
must be changed to indicate that the behavior is AND. Any suggestion?
> Have I missed something obvious, or am I barking up the wrong tree?
> Thanks!
>
I'm glad you're asking these questions because it's signaling me that
those features are indeed needed. Is Exhibit still useful to you for the
time being without those features?
David
_______________________________________________
General mailing list
[email protected]
http://simile.mit.edu/mailman/listinfo/general
