- // Loop through query array and use ajax to send back query_uuid_domids (to frontend) with json
- jQuery.each(query_uuid_domids, function(index, tuple) {
- var query=manifold.find_query(tuple.query_uuid);
- var query_json=JSON.stringify (query);
- if (manifold.asynchroneous_debug) {
- console.log ("sending POST on " + manifold.proxy_url + " with query= " + query.__repr());
- }
- // not quite sure what happens if we send a string directly, as POST data is named..
- // this gets reconstructed on the proxy side with ManifoldQuery.fill_from_POST
- jQuery.post(manifold.proxy_url, {'json':query_json} , success_closure(query, tuple.id));
- })
- },
-
- asynchroneous_success : function (data, query, id) {
- if (data) {
- if (!!id) {
- /* Directly inform the requestor */
- jQuery('#' + id).trigger('results', [data]);
+ // We use js function closure to be able to pass the query (array) to the
+ // callback function used when data is received
+ var success_closure = function(query, publish_uuid, domid) {
+ return function(data, textStatus) {manifold.asynchroneous_success(data, query, publish_uuid, domid);}};
+
+ // Loop through input array, and use publish_uuid to publish back results
+ jQuery.each(query_publish_dom_tuples, function(index, tuple) {
+ var query=manifold.find_query(tuple.query_uuid);
+ var query_json=JSON.stringify (query);
+ var publish_uuid=tuple.publish_uuid;
+ // by default we publish using the same uuid of course
+ if (publish_uuid==undefined) publish_uuid=query.query_uuid;
+ if (manifold.asynchroneous_debug) {
+ messages.debug("sending POST on " + manifold.proxy_url + " to be published on " + publish_uuid);
+ messages.debug("... ctd... with actual query= " + query.__repr());
+ }
+ // not quite sure what happens if we send a string directly, as POST data is named..
+ // this gets reconstructed on the proxy side with ManifoldQuery.fill_from_POST
+ jQuery.post(manifold.proxy_url, {'json':query_json} , success_closure(query, publish_uuid, tuple.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);
+ 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);
+ },
+
+ // if set domid allows the result to be directed to just one plugin
+ // most of the time publish_uuid will be query.query_uuid
+ // however in some cases we wish to publish the result under a different uuid
+ // e.g. an updater wants to publish its result as if from the original (get) query
+ asynchroneous_success : function (data, query, publish_uuid, domid) {
+ // xxx should have a nicer declaration of that enum in sync with the python code somehow
+ if (data.code == 2) { // ERROR
+ alert("Your session has expired, please log in again");
+ window.location="/logout/";
+ return;
+ }
+ if (data.code == 1) { // WARNING
+ messages.error("Some errors have been received from the manifold backend at " + MANIFOLD_URL + " [" + data.description + "]");
+ // publish error code and text message on a separate channel for whoever is interested
+ jQuery.publish("/results/" + publish_uuid + "/failed", [data.code, data.description] );
+ }
+ // once everything is checked we can use the 'value' part of the manifoldresult
+ var result=data.value;
+ if (result) {
+ if (!!domid) {
+ /* Directly inform the requestor */
+ if (manifold.asynchroneous_debug) messages.debug("directing result to " + domid);
+ jQuery('#' + domid).trigger('results', [result]);