var CLEAR_FIELDS = 6;
var NEW_RECORD = 7;
var CLEAR_RECORDS = 8;
+var FIELD_STATE_CHANGED = 9;
var IN_PROGRESS = 101;
var DONE = 102;
+/* Update requests related to subqueries */
var SET_ADD = 201;
var SET_REMOVED = 202;
+// request
+var FIELD_REQUEST_CHANGE = 301;
+var FIELD_REQUEST_ADD = 302;
+var FIELD_REQUEST_REMOVE = 303;
+var FIELD_REQUEST_RESET = 304;
+// status
+var FIELD_REQUEST_PENDING = 301;
+var FIELD_REQUEST_SUCCESS = 302;
+var FIELD_REQUEST_FAILURE = 303;
+
+/* Query status */
+var STATUS_NONE = 500; // Query has not been started yet
+var STATUS_GET_IN_PROGRESS = 501; // Query has been sent, no result has been received
+var STATUS_GET_RECEIVED = 502; // Success
+var STATUS_GET_ERROR = 503; // Error
+var STATUS_UPDATE_PENDING = 504;
+var STATUS_UPDATE_IN_PROGRESS = 505;
+var STATUS_UPDATE_RECEIVED = 506;
+var STATUS_UPDATE_ERROR = 507;
+
+/* Requests for query cycle */
+var RUN_UPDATE = 601;
+
// A structure for storing queries
-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 = (typeof parent_query == "undefined") ? false : parent_query
- this.main_query = (typeof main_query == "undefined") ? false : main_query
-
- // How to link to an update query ? they both have the same UUID !!
-
+ this.query = 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;
+ // update_query null unless we are a main_query (aka parent_query == null); only main_query_fields can be updated...
}
function QueryStore() {
- var main_queries = {};
- var analyzed_queries = {};
+ this.main_queries = {};
+ this.analyzed_queries = {};
/* Insertion */
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 = 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
query.iter_subqueries(function(sq, data, parent_query) {
- parent_query_ext = this.find_analyzed_query_ext(parent_query.query_uuid);
- sq_ext = QueryExt(sq, parent_query_ext, query_ext)
- this.analyzed_queries[sq.query_uuid] = sq_ext;
+ if (parent_query)
+ parent_query_ext = manifold.query_store.find_analyzed_query_ext(parent_query.query_uuid);
+ else
+ parent_query_ext = null;
+ // XXX parent_query_ext == false
+ // XXX main.subqueries = {} # Normal, we need analyzed_query
+ 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 */
* Helper functions
**************************************************************************/
+ separator: '__',
+
spin_presets: {},
spin: function(locator, active /*= true */) {
} 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_store: QueryStore(),
+ query_store: new QueryStore(),
// XXX Remaining functions are deprecated since they are replaced by the query store
* \param ManifoldQuery query Query to be added
*/
insert_query : function (query) {
+ // NEW API
+ manifold.query_store.insert(query);
+
+ // FORMER API
if (query.analyzed_query == null) {
query.analyze_subqueries();
}
}
},
+ run_query: function(query, callback)
+ {
+ // default value for callback = null
+ if (typeof callback === 'undefined')
+ callback = null;
+
+ var query_json = JSON.stringify(query);
+
+ /* Nothing related to pubsub here... for the moment at least. */
+ //query.iter_subqueries(function (sq) {
+ // manifold.raise_record_event(sq.query_uuid, IN_PROGRESS);
+ //});
+
+ $.post(manifold.proxy_url, {'json': query_json} , manifold.success_closure(query, null, callback /*domid*/));
+ },
+
// Executes all async. queries
// input queries are specified as a list of {'query_uuid': <query_uuid>, 'id': <possibly null>}
asynchroneous_exec : function (query_publish_dom_tuples) {
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] );
+ if (publish_uuid)
+ $.publish("/results/" + publish_uuid + "/failed", [data.code, data.description] );
$("#notifications").notify("create", "sticky", {
title: 'Warning',
/* 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);
//}
raise_event_handler: function(type, query_uuid, event_type, value)
{
- if (type == 'query') {
- var channels = [ manifold.get_query_channel(query_uuid), manifold.get_query_channel('*') ];
- } else if (type == 'record') {
- var channels = [ manifold.get_record_channel(query_uuid), manifold.get_record_channel('*') ];
-
- } else {
+ if ((type != 'query') && (type != 'record'))
throw 'Incorrect type for manifold.raise_event()';
- }
+
+ var channels = [ manifold.get_channel(type, query_uuid), manifold.get_channel(type, '*') ];
+
$.each(channels, function(i, channel) {
if (value === undefined)
$('.plugin').trigger(channel, [event_type]);
raise_event: function(query_uuid, event_type, value)
{
+ // Query uuid has been updated with the key of a new element
+ query_ext = manifold.query_store.find_analyzed_query_ext(query_uuid);
+ query = query_ext.query;
+
switch(event_type) {
- case SET_ADD:
- // Query uuid has been updated with the key of a new element
- query = manifold.find_query(query_uuid);
+ case FIELD_STATE_CHANGED:
+ // value is an object (request, key, value, status)
+ // update is only possible is the query is not pending, etc
+ // SET_ADD is on a subquery, FIELD_STATE_CHANGED on the query itself
+ // we should map SET_ADD on this...
+
+ // 1. Update internal query store about the change in status
- // XXX We need to find the parent to update the property
- // XXX We need to find the non-analyzed query so that it can be updated also
+ // 2. Update the update query
+ update_query = query_ext.main_query_ext.update_query_ext.query;
+ update_query.params[value.key].push(value.value);
+
+ // 3. Inform others about the change
+ // a) the main query...
+ manifold.raise_record_event(query_uuid, event_type, value);
+
+ // b) subqueries eventually (dot in the key)
+ // XXX make this DOT a global variable... could be '/'
break;
+
+ case SET_ADD:
case SET_REMOVED:
- // Query uuid has been updated with the key of a removed element
+
+ // update is only possible is the query is not pending, etc
+ // CHECK status !
+
+ // XXX we can only update subqueries of the main query. Check !
+ // assert query_ext.parent_query == query_ext.main_query
+ // old // update_query = query_ext.main_query_ext.update_query_ext.query;
+
+ // This SET_ADD is called on a subquery, so we have to
+ // recontruct the path of the key in the main_query
+ // We then call FIELD_STATE_CHANGED which is the equivalent for the main 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;
+ }
+
+ main_query = query_ext.main_query_ext.query;
+ data = {
+ request: (event_type == SET_ADD) ? FIELD_REQUEST_ADD : FIELD_REQUEST_REMOVE,
+ key : path,
+ value : value,
+ status: FIELD_REQUEST_PENDING,
+ };
+ this.raise_event(main_query.query_uuid, FIELD_STATE_CHANGED, data);
+
+ // old //update_query.params[path].push(value);
+ // old // 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 ?)
+
+ // if everything is done right, update_query should not be null. It is updated when we received results from the get query
+ // object = the same as get
+ // filter = key : update a single object for now
+ // fields = the same as get
+ manifold.raise_query_event(query_uuid, event_type, value);
+
+ break;
+
+ case RUN_UPDATE:
+ manifold.run_query(query_ext.main_query_ext.update_query_ext.query);
+ break;
+
+ case FILTER_ADDED:
+ manifold.raise_query_event(query_uuid, event_type, value);
+ break;
+ case FILTER_REMOVED:
+ manifold.raise_query_event(query_uuid, event_type, value);
+ break;
+ case FIELD_ADDED:
+ main_query = query_ext.main_query_ext.query;
+ main_update_query = query_ext.main_query_ext.update_query;
+ query.select(value);
+
+ // Here we need the full path through all subqueries
+ path = ""
+ // XXX We might need the query name in the QueryExt structure
+ main_query.select(value);
+
+ // XXX When is an update query associated ?
+ // XXX main_update_query.select(value);
+
+ manifold.raise_query_event(query_uuid, event_type, value);
+ break;
+
+ case FIELD_REMOVED:
+ query = query_ext.query;
+ main_query = query_ext.main_query_ext.query;
+ main_update_query = query_ext.main_query_ext.update_query;
+ query.unselect(value);
+ main_query.unselect(value);
+
+ // We need to inform about changes in these queries to the respective plugins
+ // Note: query & main_query have the same UUID
+ manifold.raise_query_event(query_uuid, event_type, value);
break;
}
+ // We need to inform about changes in these queries to the respective plugins
+ // Note: query, main_query & update_query have the same UUID
+ manifold.raise_query_event(query_uuid, event_type, value);
+ // We are targeting the same object with get and update
+ // The notion of query is bad, we should have a notion of destination, and issue queries on the destination
+ // NOTE: Editing a subquery == editing a local view on the destination
+
+ // XXX We might need to run the new query again and manage the plugins in the meantime with spinners...
+ // For the time being, we will collect all columns during the first query
},
/* Publish/subscribe channels for internal use */
- get_query_channel: function(uuid) { return '/query/' + uuid },
- get_record_channel: function(uuid) { return '/record/' + uuid },
+ get_channel: function(type, query_uuid)
+ {
+ if ((type !== 'query') && (type != 'record'))
+ return null;
+ return '/' + type + '/' + query_uuid;
+ },
}; // manifold object
/* ------------------------------------------------------------ */
(function($) {
- /* NEW PLUGIN API
- *
- * NOTE: Since we don't have a plugin class, we are extending all jQuery
- * plugins...
- */
-
- /*!
- * \brief Associates a query handler to the current plugin
- * \param uuid (string) query uuid
- * \param handler (function) handler callback
- */
- $.fn.set_query_handler = function(uuid, handler)
- {
- this.on(manifold.get_query_channel(uuid), handler);
- }
-
- $.fn.set_record_handler = function(uuid, handler)
- {
- this.on(manifold.get_record_channel(uuid), handler);
- }
-
// OLD PLUGIN API: extend jQuery/$ with pubsub capabilities
// https://gist.github.com/661855
var o = $({});
git://git.onelab.eu / myslice.git / blobdiff