Re: [Treebase-devel] Understanding OAI-PMH Verbs

[Carl B. <cbo...@gm...>]

On Wed, May 11, 2011 at 5:16 PM, William Piel <wil...@ya...> wrote:
>
> On May 11, 2011, at 8:03 PM, Carl Boettiger wrote:
>
>> For instance, it will ListRecord will take "after" as well as "until"?
>
> it should...
hmm, I don't think I have the right adjective, seems that "after"
gives me the whole of treebase independent of the date.  Same with
"since" Can I look up the vocabulary somewhere?

I was extracting dates from <dc:dates> but pulling with
ListRecord=until, which was using the <datestamp> date instead, which
is why I got 1980s dates.    Sorry about that.

So I guess the only way to query by author date is to pull the
metadata for all studies and filter from there?  Fine for treebase at
it's current size I suppose...

-Carl

>
>> It seems that the date used by ListRecord corresponds to the datestamp
>> in the header, which isn't the year of the publication?
>
> that's right... so the main motivation for creating this service was to allow Dryad to mirror TreeBASE -- any modifications to old records get an updated time-stamp, which allows Dryad to not just suck down new records, but also update existing records that have changed.
>
>>  I thought it might be the date added to TreeBASE, but some go back to 1980?
>
> Oh... whoops. Maybe I'm wrong about this. The earliest date should be 1995-11-04. I'll have to check this.
>
>>  Is this spelled out a bit more anywhere?
>
> It ought to be...
>
> bp
>
>
>



-- 
Carl Boettiger
UC Davis
http://www.carlboettiger.info/