/* Update requests from plugins */
var SET_ADD = 201;
var SET_REMOVED = 202;
+var RUN_UPDATE = 203;
/* Query status */
var STATUS_NONE = 500; // Query has not been started yet
-function QueryExt(query, parent_query, main_query) {
+function QueryExt(query, parent_query_ext, main_query_ext, update_query_ext, disabled) {
/* Constructor */
if (typeof query == "undefined")
throw "Must pass a query in QueryExt constructor";
this.query = query
- this.parent_query_ext = (typeof parent_query == "undefined") ? false : parent_query
- this.main_query_ext = (typeof main_query == "undefined") ? false : main_query
+ this.parent_query_ext = (typeof parent_query_ext == "undefined") ? null : parent_query_ext
+ this.main_query_ext = (typeof main_query_ext == "undefined") ? null : main_query_ext
+ this.update_query_ext = (typeof update_query_ext == "undefined") ? null : update_query_ext
+ this.disabled = (typeof update_query_ext == "undefined") ? false : disabled
this.status = null;
this.results = null;
- this.update_query = null; // null unless we are a main_query (aka parent_query == null); only main_query_fields can be updated...
+ // update_query null unless we are a main_query (aka parent_query == null); only main_query_fields can be updated...
}
function QueryStore() {
this.insert = function(query)
{
+ // We expect only main_queries are inserted
+
+ /* If the query has not been analyzed, then we analyze it */
if (query.analyzed_query == null) {
query.analyze_subqueries();
}
- query_ext = new QueryExt(query, null, null)
+ /* We prepare the update query corresponding to the main query and store both */
+ /* Note: they have the same UUID */
+
+ // XXX query.change_action() should become deprecated
+ update_query = query.clone();
+ update_query.action = 'update';
+ update_query.analyzed_query.action = 'update';
+ update_query.params = {};
+ update_query_ext = new QueryExt(update_query);
+ console.log("Update query created from Get query", update_query);
+
+ /* We store the main query */
+ query_ext = new QueryExt(query, null, null, update_query_ext, false);
manifold.query_store.main_queries[query.query_uuid] = query_ext;
+ /* Note: the update query does not have an entry! */
+
+
+ // The query is disabled; since it is incomplete until we know the content of the set of subqueries
+ // XXX unless we have no subqueries ???
+ // we will complete with params when records are received... this has to be done by the manager
+ // SET_ADD, SET_REMOVE will change the status of the elements of the set
+ // UPDATE will change also, etc.
+ // XXX We need a proper structure to store this information...
// We also need to insert all queries and subqueries from the analyzed_query
// XXX We need the root of all subqueries
sq_ext = new QueryExt(sq, parent_query_ext, query_ext)
manifold.query_store.analyzed_queries[sq.query_uuid] = sq_ext;
});
+
+ // XXX We have spurious update queries...
}
/* Searching */
} catch (err) { messages.debug("Cannot turn spins on/off " + err); }
},
+ /**************************************************************************
+ * Metadata management
+ **************************************************************************/
+
+ metadata: {
+
+ get_table: function(method)
+ {
+ var table = MANIFOLD_METADATA[method];
+ return (typeof table === 'undefined') ? null : table;
+ },
+
+ get_columns: function(method)
+ {
+ var table = this.get_table(method);
+ if (!table) {
+ return null;
+ }
+
+ return (typeof table.column === 'undefined') ? null : table.column;
+ },
+
+ get_key: function(method)
+ {
+ var table = this.get_table(method);
+ if (!table)
+ return null;
+
+ return (typeof table.key === 'undefined') ? null : table.key;
+ },
+
+
+ get_column: function(method, name)
+ {
+ var columns = this.get_columns(method);
+ if (!columns)
+ return null;
+
+ $.each(columns, function(i, c) {
+ if (c.name == name)
+ return c
+ });
+ return null;
+ },
+
+ get_type: function(method, name)
+ {
+ var table = this.get_table(method);
+ if (!table)
+ return null;
+
+ return (typeof table.type === 'undefined') ? null : table.type;
+ }
+
+ },
+
/**************************************************************************
* Query management
**************************************************************************/
/* query is the query we sent to the backend; we need to find the
* corresponding analyezd_query in manifold.all_queries
*/
+
+ // XXX We might need to update the corresponding update_query here
+ query_ext = manifold.query_store.find_query_ext(query.query_uuid);
+ query = query_ext.query;
+
+ // We don't prepare an update query if the result has more than 1 entry
+ if (result.length == 1) {
+ var res = result[0];
+
+ console.log("Locating update query for updating params", update_query);
+ update_query_ext = query_ext.update_query_ext;
+ update_query = update_query_ext.query;
+
+ // Testing whether the result has subqueries (one level deep only)
+ // iif the query has subqueries
+ var count = 0;
+ var obj = query.analyzed_query.subqueries;
+ for (method in obj) {
+ if (obj.hasOwnProperty(method)) {
+ var key = manifold.metadata.get_key(method);
+ if (!key)
+ continue;
+ if (key.length > 1)
+ continue;
+ key = key[0];
+ var sq_keys = [];
+ var records = res[method];
+ if (!records)
+ continue
+ $.each(records, function (i, obj) {
+ sq_keys.push(obj[key]);
+ });
+ update_query.params[method] = sq_keys;
+ count++;
+ }
+ }
+
+ if (count > 0) {
+ update_query_ext.disabled = false;
+ }
+
+ }
+
+
+
+ // We have results from the main query
+ // inspect subqueries and get the key for each
+
+ // XXX note that we might need the name for each relation, but
+ // this might be for SET_ADD, since we need to recursively find
+ // the path from the main query
+
+
tmp_query = manifold.find_query(query.query_uuid);
manifold.publish_result_rec(tmp_query.analyzed_query, result);
//}
// XXX we can only update subqueries of the main query. Check !
// assert query_ext.parent_query == query_ext.main_query
- update_query = query_ext.parent_query_ext.update_query;
-
+ update_query = query_ext.main_query_ext.update_query_ext.query;
+
+ var path = "";
+ var sq = query_ext;
+ while (sq.parent_query_ext) {
+ if (path != "")
+ path = '.' + path;
+ path = sq.query.object + path;
+ sq = sq.parent_query_ext;
+ }
+
+ update_query.params[path].push(value);
+ console.log('Updated query params', update_query);
// NOTE: update might modify the fields in Get
// NOTE : we have to modify all child queries
// NOTE : parts of a query might not be started (eg slice.measurements, how to handle ?)
case SET_REMOVED:
// Query uuid has been updated with the key of a removed element
break;
+
+ case RUN_UPDATE:
+ update_query = query_ext.main_query_ext.update_query_ext.query;
+
+ manifold.asynchroneous_exec ( [ {'query_uuid': update_query.query_uuid, 'publish_uuid' : query_uuid} ], false);
+ break;
+
case FILTER_ADDED:
break;
case FILTER_REMOVED:
git://git.onelab.eu / myslice.git / blobdiff