I am working on a site that displays a list of venues and would like to add a Foursquare 'save' button for each venue in the list. Is it possible to show multiple Foursquare 'save' buttons on a single page? I've tried creating multiple vCard blocks (one for each venue) and inserting a 'save' button in each block but the locations are not being picked up.
After inspecting the source of the widgets.js and widgets.asyncbundle.js I discovered that setting thedata-context atribute of the 'Save to Foursquare' button to the ID of the VCard will link these two. Like so:
<div id="hcard-Station-Amsterdam-Centraal" class="vcard">
<span class="fn">
<span class="given-name">Station Amsterdam Centraal</span>
</span>
<div class="adr">
<div class="street-address">stationsplein 15</div>
<span class="locality">Amsterdam</span>,
<span class="region">Amsterdam</span> ,
<span class="postal-code">1012AB</span>
</div>
</div>
<div id="hcard-Jaarbeursplein" class="vcard">
<span class="fn">
<span class="given-name">Jaarbeursplein</span>
</span>
<div class="adr">
<div class="street-address">Jaarbeursplein</div>
<span class="locality">Utrecht</span>,
<span class="region">Utrecht</span>,
<span class="postal-code">3521AL</span>
</div>
</div>
<a href="https://foursquare.com/intent/venue.html" class="fourSq-widget" data-context="hcard-Station-Amsterdam-Centraal" data-variant="wide">Save to foursquare</a>
<a href="https://foursquare.com/intent/venue.html" class="fourSq-widget" data-context="hcard-Jaarbeursplein" data-variant="wide">Save to foursquare</a>
But for the fact that this isn't documented, it may be changed in the near future.