else messages.debug ("debug_query: " + msg + " query= " + query);
}
+// http://javascriptweblog.wordpress.com/2011/08/08/fixing-the-javascript-typeof-operator/
+Object.toType = (function toType(global) {
+ return function(obj) {
+ if (obj === global) {
+ return "global";
+ }
+ return ({}).toString.call(obj).match(/\s([a-z|A-Z]+)/)[1].toLowerCase();
+ }
+})(this);
+
/* ------------------------------------------------------------ */
// Constants that should be somehow moved to a plugin.js file
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;
+var FIELD_REQUEST_PENDING = 401;
+var FIELD_REQUEST_SUCCESS = 402;
+var FIELD_REQUEST_FAILURE = 403;
/* Query status */
var STATUS_NONE = 500; // Query has not been started yet
/* Requests for query cycle */
var RUN_UPDATE = 601;
-// A structure for storing queries
+/* MANIFOLD types */
+var TYPE_VALUE = 1;
+var TYPE_RECORD = 2;
+var TYPE_LIST_OF_VALUES = 3;
+var TYPE_LIST_OF_RECORDS = 4;
+// A structure for storing queries
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_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.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.update_query_orig_ext = (typeof update_query_orig_ext == "undefined") ? null : update_query_orig_ext;
+ this.disabled = (typeof update_query_ext == "undefined") ? false : disabled;
this.status = null;
this.results = null;
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 remember the original query to be able to reset it */
+ update_query_orig_ext = new QueryExt(update_query.clone());
+
/* We store the main query */
- query_ext = new QueryExt(query, null, null, update_query_ext, false);
+ query_ext = new QueryExt(query, null, null, update_query_ext, update_query_orig_ext, false);
manifold.query_store.main_queries[query.query_uuid] = query_ext;
/* Note: the update query does not have an entry! */
} catch (err) { messages.debug("Cannot turn spins on/off " + err); }
},
+ get_type: function(variable)
+ {
+ switch(Object.toType(variable)) {
+ case 'number':
+ case 'string':
+ return TYPE_VALUE;
+ case 'object':
+ return TYPE_RECORD;
+ case 'array':
+ if ((variable.length > 0) && (Object.toType(variable[0]) === 'object'))
+ return TYPE_LIST_OF_RECORDS;
+ else
+ return TYPE_LIST_OF_VALUES;
+ }
+ },
+
/**************************************************************************
* Metadata management
**************************************************************************/
manifold.publish_result(query, result);
},
+ process_get_query_records: function(query, records)
+ {
+ /* This consists in managing the update query */
+
+ // We don't prepare an update query if the result has more than 1 entry
+ if (records.length == 1) {
+ var query_ext = manifold.query_store.find_query_ext(query.query_uuid);
+
+ var record = records[0];
+
+ var update_query_ext = query_ext.update_query_ext;
+ var update_query = update_query_ext.query;
+ var update_query_ext = query_ext.update_query_ext;
+ var update_query_orig = query_ext.update_query_orig_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 subrecords = record[method];
+ if (!subrecords)
+ continue
+ $.each(subrecords, function (i, subrecord) {
+ sq_keys.push(subrecord[key]);
+ });
+ update_query.params[method] = sq_keys;
+ update_query_orig.params[method] = sq_keys.slice();
+ count++;
+ }
+ }
+
+ if (count > 0) {
+ update_query_ext.disabled = false;
+ update_query_orig_ext.disabled = false;
+ }
+ }
+
+ /* Publish results */
+ // NOTE: this is redundant only for Get queries
+ tmp_query = manifold.find_query(query.query_uuid);
+ manifold.publish_result_rec(tmp_query.analyzed_query, records);
+ },
+
+ /**
+ *
+ * What we need to do when receiving results from an update query:
+ * - differences between what we had, what we requested, and what we obtained
+ * . what we had : update_query_orig (simple fields and set fields managed differently)
+ * . what we requested : update_query
+ * . what we received : records
+ * - raise appropriate events
+ *
+ * The normal process is that results similar to Get will be pushed in the
+ * pubsub mechanism, thus repopulating everything while we only need
+ * diff's. This means we need to move the publish functionalities in the
+ * previous 'process_get_query_records' function.
+ */
+ process_update_query_records: function(query, records)
+ {
+ // First issue: we request everything, and not only what we modify, so will will have to ignore some fields
+ var query_uuid = query.query_uuid;
+ var query_ext = manifold.query_store.find_analyzed_query_ext(query_uuid);
+ var update_query = query_ext.main_query_ext.update_query_ext.query;
+ var update_query_orig = query_ext.main_query_ext.update_query_orig_ext.query;
+
+ // Since we update objects one at a time, we can get the first record
+ var record = records[0];
+
+ // Let's iterate over the object properties
+ for (var field in record) {
+ switch (this.get_type(record[field])) {
+ case TYPE_VALUE:
+ // Did we ask for a change ?
+ var update_value = update_query[field];
+ if (!update_value)
+ // Not requested, if it has changed: OUT OF SYNC
+ // How we can know ?
+ // We assume it won't have changed
+ continue;
+
+ var result_value = record[field];
+ if (!result_value)
+ throw "Internal error";
+
+ data = {
+ request: FIELD_REQUEST_CHANGE,
+ key : field,
+ value : update_value,
+ status: (update_value == result_value) ? FIELD_REQUEST_SUCCESS : FIELD_REQUEST_FAILURE,
+ }
+ manifold.raise_record_event(query_uuid, FIELD_STATE_CHANGED, data);
+
+ break;
+ case TYPE_RECORD:
+ throw "Not implemented";
+ break;
+
+ case TYPE_LIST_OF_VALUES:
+ // Same as list of records, but we don't have to extract keys
+ var result_keys = record[field]
+
+ // The rest of exactly the same (XXX factorize)
+ var update_keys = update_query_orig.params[field];
+ var query_keys = update_query.params[field];
+ var added_keys = $.grep(query_keys, function (x) { return $.inArray(x, update_keys) == -1 });
+ var removed_keys = $.grep(update_keys, function (x) { return $.inArray(x, query_keys) == -1 });
+
+
+ $.each(added_keys, function(i, key) {
+ if ($.inArray(key, result_keys) == -1) {
+ data = {
+ request: FIELD_REQUEST_ADD,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_FAILURE,
+ }
+ } else {
+ data = {
+ request: FIELD_REQUEST_ADD,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_SUCCESS,
+ }
+ }
+ manifold.raise_record_event(query_uuid, FIELD_STATE_CHANGED, data);
+ });
+ $.each(removed_keys, function(i, key) {
+ if ($.inArray(key, result_keys) == -1) {
+ data = {
+ request: FIELD_REQUEST_REMOVE,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_SUCCESS,
+ }
+ } else {
+ data = {
+ request: FIELD_REQUEST_REMOVE,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_FAILURE,
+ }
+ }
+ manifold.raise_record_event(query_uuid, FIELD_STATE_CHANGED, data);
+ });
+
+
+ break;
+ case TYPE_LIST_OF_RECORDS:
+ // example: slice.resource
+ // - update_query_orig.params.resource = resources in slice before update
+ // - update_query.params.resource = resource requested in slice
+ // - keys from field = resources obtained
+ var key = manifold.metadata.get_key(field);
+ if (!key)
+ continue;
+ if (key.length > 1) {
+ throw "Not implemented";
+ continue;
+ }
+ key = key[0];
+
+ /* XXX should be modified for multiple keys */
+ var result_keys = $.map(record[field], function(x) { return x[key]; });
+
+ var update_keys = update_query_orig.params[field];
+ var query_keys = update_query.params[field];
+ var added_keys = $.grep(query_keys, function (x) { return $.inArray(x, update_keys) == -1 });
+ var removed_keys = $.grep(update_keys, function (x) { return $.inArray(x, query_keys) == -1 });
+
+
+ $.each(added_keys, function(i, key) {
+ if ($.inArray(key, result_keys) == -1) {
+ data = {
+ request: FIELD_REQUEST_ADD,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_FAILURE,
+ }
+ } else {
+ data = {
+ request: FIELD_REQUEST_ADD,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_SUCCESS,
+ }
+ }
+ manifold.raise_record_event(query_uuid, FIELD_STATE_CHANGED, data);
+ });
+ $.each(removed_keys, function(i, key) {
+ if ($.inArray(key, result_keys) == -1) {
+ data = {
+ request: FIELD_REQUEST_REMOVE,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_SUCCESS,
+ }
+ } else {
+ data = {
+ request: FIELD_REQUEST_REMOVE,
+ key : field,
+ value : key,
+ status: FIELD_REQUEST_FAILURE,
+ }
+ }
+ manifold.raise_record_event(query_uuid, FIELD_STATE_CHANGED, data);
+ });
+
+
+ break;
+ }
+ }
+ },
+
+ process_query_records: function(query, records)
+ {
+ if (query.action == 'get') {
+ this.process_get_query_records(query, records);
+ } else if (query.action == 'update') {
+ this.process_update_query_records(query, records);
+ }
+ },
+
// 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
// once everything is checked we can use the 'value' part of the manifoldresult
var result=data.value;
if (result) {
- //if (!!callback /* domid */) {
- // /* Directly inform the requestor */
- // if (manifold.asynchroneous_debug) messages.debug("directing result to callback");
- // callback(result);
- // //if (manifold.asynchroneous_debug) messages.debug("directing result to " + domid);
- // //jQuery('#' + domid).trigger('results', [result]);
- //} else {
- /* XXX Jordan XXX I don't need publish_uuid here... What is it used for ? */
- /* 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
- $.each(records, function (i, obj) {
- sq_keys.push(obj[key]);
- });
- update_query.params[method] = sq_keys;
- count++;
- }
- }
-
- if (count > 0) {
- update_query_ext.disabled = false;
- }
-
- }
-
-
-
- // We have results from the main query
- // inspect subqueries and get the key for each
-
- // XXX note that we might need the name for each relation, but
- // this might be for SET_ADD, since we need to recursively find
- // the path from the main query
-
-
- tmp_query = manifold.find_query(query.query_uuid);
- manifold.publish_result_rec(tmp_query.analyzed_query, result);
- //}
+ /* Eventually update the content of related queries (update, etc) */
+ this.process_query_records(query, result);
+ /* Publish results: disabled here, done in the previous call */
+ //tmp_query = manifold.find_query(query.query_uuid);
+ //manifold.publish_result_rec(tmp_query.analyzed_query, result);
}
},
// 1. Update internal query store about the change in status
// 2. Update the update query
- update_query = query_ext.main_query_ext.update_query_ext.query;
- update_query.params[value.key].push(value.value);
+ update_query = query_ext.main_query_ext.update_query_ext.query;
+ update_query_orig = query_ext.main_query_ext.update_query_orig_ext.query;
+
+ switch(value.request) {
+ case FIELD_REQUEST_CHANGE:
+ update_query.params[value.key] = value.value;
+ break;
+ case FIELD_REQUEST_ADD:
+ if ($.inArray(value.value, update_query_orig.params[value.key]) != -1)
+ value.request = FIELD_REQUEST_RESET;
+ update_query.params[value.key].push(value.value);
+ break;
+ case FIELD_REQUEST_REMOVE:
+ if ($.inArray(value.value, update_query_orig.params[value.key]) == -1)
+ value.request = FIELD_REQUEST_RESET;
+
+ var arr = update_query.params[value.key];
+ arr = $.grep(arr, function(x) { return x != value.value; });
+ update_query.params[value.key] = arr;
+
+ break;
+ case FIELD_REQUEST_RESET:
+ // XXX We would need to keep track of the original query
+ throw "Not implemented";
+ break;
+ }
// 3. Inform others about the change
// a) the main query...
git://git.onelab.eu / myslice.git / commitdiff