Wim,
Right now the way to express your data is as follows:
{
items: [
{ type: "Call",
date: "2007-03-31",
label: "Morning",
id: "call-1",
props: [ "prop-1-1", "prop-1-2" ]
},
{ type: "Prop",
label: "prop-1-1",
country: "US",
avgtime: 3
},
{ type: "Prop",
label: "prop-1-2",
country: "UK",
avgtime: 8
},
{ type: "Call",
date: "2007-03-31",
label: "Afternoon",
props: [ "prop-2-1", "prop-2-2" ]
},
{ type: "Prop",
label: "prop-2-1",
country: "US",
avgtime: 4
},
{ type: "Prop",
label: "prop-2-2",
country: "UK",
avgtime: 9
}
],
properties: {
props: {
valueType: "item"
}
}
}
Essentially, the "props" things are first class items themselves. I
added "id" for the calls just in case you have several calls with the
same labels. If you don't have "id", then the label is used as the
item's locally unique id. And if you have several items with the same
label and no explicit id, Exhibit consider them to be the same
item--which isn't what you want.
Say you are making a lens template for the calls, then to display the
properties of props, do something like this:
<div ex:role="exhibit-lens">
label of call: <span ex:content=".label"></span>
<ul ex:content=".props">
<li>country: <span ex:content=".country"></span>, avgtime: <span
ex:content=".avgtime"></span></li>
</ul>
</div>
What's happening there is that the HTML inside <ul> is used as a
template for the props of the call.
If you're making a tabular view, then you can also display the props'
properties like so:
<div ex:role="exhibit-view" ex:viewClass="Exhibit.TabularView"
ex:columns=".label, .date, .props.country"></div>
You'll get 3 columns: labels of calls, dates of calls, and countries of
calls' props.
To filter on country, specify a facet with the expression ".props.country".
Hope that helps,
David
Wim Godden wrote:
> Hi,
>
> Is there a way to use an extra level in Exhibit. What I mean is :
>
>
> {
> "items" : [
> {
> type : "Call",
> "date" : "2007-03-31",
> "label" : "Morning",
> "props" : [
> {
> "country" : "US",
> "avgtime" : 3
> ),
> {
> "country" : "UK",
> "avgtime" : 8
> }
> ]
> },
> {
> type : "Call",
> "date" : "2007-03-31",
> "label" : "Afternoon",
> "props" : [
> {
> "country" : "US",
> "avgtime" : 4
> ),
> {
> "country" : "UK",
> "avgtime" : 9
> }
> ]
> }
> ]
> }
>
> Is there a way to filter on the country part ?
> I can't seem to even display the contents of 'props' anywhere.
>
>
> Any help much appreciated !
>
> Kind regards,
>
> Wim
>
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>
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