Replace ExternalService ServiceTag elements with Link/@rel="external-service"

[mmarum-sugarcrm]

Original author: [email protected] (April 07, 2012 20:04:49)

SPECIFICATION BUGS ONLY - Description
=====================================
A new "external-service" rel value can be defined to replace the existing ExternalService mechanism, eliminate extraneous elements from the gadget spec vocabulary and simplify the overall format.. for instance..

instead of...

<Module>
...
<ExternalServices>
<ServiceTag alias="opensocial:my.external.service">foo</ServiceTag>
</ExternalServices>
<Content type="html">
<script>
gadgets.io.makeRequest("",function(res){...},{"alias":"foo"};
</script>
</Content>
</Module>

it would be..

<Module>
<ModulePrefs>
...
<Link rel="external-service" label="foo" href="opensocial:my.external.service" />
...
</ModulePrefs>
<Content type="html">
<script>
osapi.links["foo"].get().execute(function(res) {...});
</script>
</Content>
</Module>

By combining this change with the Links API, we can completely streamline how external linked resources are accessed and make it absolutely seamless and consistent across the board.

Document affected:
==================
1.) Please attach a patch for the document if appropriate.
2.) Post a thread at
http://groups.google.com/group/opensocial-and-gadgets-spec/topics
linking to this issue report.
3.) Post a comment on this issue, linking back to the thread.

Original issue: http://code.google.com/p/opensocial-resources/issues/detail?id=1295