+ /**
+ * \brief Forward a query to the manifold backend
+ * \param query (dict) the query to be executed asynchronously
+ * \param callback (function) the function to be called when the query terminates
+ * Deprecated:
+ * \param domid (string) the domid to be notified about the results (null for using the pub/sub system
+ */
+ forward: function(query, callback /*domid*/) {
+ var query_json = JSON.stringify(query);
+ $.post(manifold.proxy_url, {'json': query_json} , manifold.success_closure(query, query.query_uuid, callback/*domid*/));
+ },
+
+ /*!
+ * Returns whether a query expects a unique results.
+ * This is the case when the filters contain a key of the object
+ * \fn query_expects_unique_result(query)
+ * \memberof Manifold
+ * \param ManifoldQuery query Query for which we are testing whether it expects a unique result
+ */
+ query_expects_unique_result: function(query) {
+ /* XXX we need functions to query metadata */
+ //var keys = MANIFOLD_METADATA[query.object]['keys']; /* array of array of field names */
+ /* TODO requires keys in metadata */
+ return true;
+ },
+
+ /*!
+ * Publish result
+ * \fn publish_result(query, results)
+ * \memberof Manifold
+ * \param ManifoldQuery query Query which has received results
+ * \param array results results corresponding to query
+ */
+ publish_result: function(query, result) {
+ /* Publish an update announce */
+ var channel="/results/" + query.query_uuid + "/changed";
+ if (manifold.asynchroneous_debug)
+ messages.debug("publishing result on " + channel);
+ if (typeof result === 'undefined')
+ result = [];
+ jQuery.publish(channel, [result, query]);
+ },
+
+ /*!
+ * Recursively publish result
+ * \fn publish_result_rec(query, result)
+ * \memberof Manifold
+ * \param ManifoldQuery query Query which has received result
+ * \param array result result corresponding to query
+ */
+ publish_result_rec: function(query, result) {
+ /* If the result is not unique, only publish the top query;
+ * otherwise, publish the main object as well as subqueries
+ * XXX how much recursive are we ?
+ */
+ if (manifold.query_expects_unique_result(query)) {
+ /* Also publish subqueries */
+ jQuery.each(query.subqueries, function(object, subquery) {
+ manifold.publish_result_rec(subquery, result[0][object]);
+ /* TODO remove object from result */
+ });
+ }
+ manifold.publish_result(query, result);
+ },
+