Lee Feigenbaum wrote:
> Hi everyone,
>
> I'm wondering if there's a (easy) way to get the JSON for an Exhibit
> database. That is, I'm looking for the equivalent of doing:
>
> ---
>
> <link href="data.js" type="application/json" rel="exhibit/data" />
> ...
> <script>
> window.database = Exhibit.Database.create();
> window.database.loadDataLinks(
> function() {
> var json = window.database.getAsJSON();
> }
> );
> </script>
>
> ---
>
> ...and have the json variable be either the JavaScript object or JSON
> string representation of the data.js file. (If it's a string, I clearly
> don't care whether it preserves whitespace/indentation etc.)
>
Try
Exhibit.ExhibitJsonExporter.exportMany(database.getAllItems(), database)
which would give you a string. I actually am not sure whether the string
is JSON proper. That exporter is implemented in
http://simile.mit.edu/repository/exhibit/branches/2.0/src/webapp/api/scripts/exporters/exhibit-json-exporter.js
If you're using Exhibit 2.0, then in the typical case "database" is a
global variable. If not, then you need to call exhibit.getDatabase() and
supposedly you already have a reference to "exhibit".
> I'm looking to do this so that I can send the JSON back to a server to
> udpate some data items, so if anyone has an existing approach to this
> more general problem (updating selected parts of Exhibit databases or,
> even more generally, server-based JSON files), I'd love to hear them too.
>
That's not really what Exhibit was designed for ... but let me know how
that goes for you.
David
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