"initialData" option add

Author: nikitaeverywhere

package.json

@@ -1,7 +1,7 @@
 {
   "name": "LightPivotTable",
   "author": "ZitRo",
-  "version": "1.6.4",
+  "version": "1.6.5",
   "description": "A lightweight pivot table for MDX2JSON source for InterSystems Cache",
   "main": "test/testServer.js",
   "repository": {

readme.md

@@ -80,6 +80,7 @@ var setup = { // Object that contain settings. Properties in brackets can be mis
         [ , enableListingSelect: true ] // enable listing selection, true by default
         [ , showListingRowsNumber: true ] // show rows number in listing and tables if paginated
         [ , rowCount: 5 ] // number of rows to show. Use lp.setRowCount(N) to change rowCount. Manual lp.refresh() needed to apply.
+        [ , initialData: { ... } ] // initial data from /MDX query (if present, in MDX2JSON format). Pivot won't request /MDX first time if initial data set. Check twice that dataSource.basicMDX is consistent with the data in this option.
     },
     lp = new LightPivotTable(setup);
 

source/js/DataSource.js

@@ -6,9 +6,10 @@
  * @param {Object} config
  * @param {Object} globalConfig
  * @param {LightPivotTable} lpt
+ * @param {number=1} [drillLevel]
  * @constructor
  */
-var DataSource = function (config, globalConfig, lpt) {
+var DataSource = function (config, globalConfig, lpt, drillLevel) {
 
     this.SOURCE_URL = config.MDX2JSONSource ||
         location.host + ":" + location.port + "/" + (location.pathname.split("/") || [])[1];
@@ -18,9 +19,9 @@ var DataSource = function (config, globalConfig, lpt) {
     this.LPT = lpt;
     this.GLOBAL_CONFIG = globalConfig;
     this.SEND_COOKIES = config["sendCookies"] || false;
+    this.DRILL_LEVEL = typeof drillLevel !== "number" ? 1 : drillLevel;
 
     this.BASIC_MDX = config.basicMDX;
-
     /**
      * Name of data source pivot.
      *
@@ -232,18 +233,27 @@ DataSource.prototype.getCurrentData = function (callback) {
 
         if (_.LPT.CONFIG["logs"]) console.log("LPT MDX request:", mdx);
 
+        var setData = function (data) {
+            _.LPT.pivotView.removeMessage();
+            ready.data = data;
+            ready.state++;
+            handleDataReady();
+        };
+
+        // fill initial data first time and exit
+        if (_.DRILL_LEVEL === 0 && _.LPT.CONFIG["initialData"]) {
+            setData(_.LPT.CONFIG["initialData"]);
+            return;
+        }
+
         _._post(
             _.SOURCE_URL + "/" +
             (mdxType === "drillthrough" ? "MDXDrillthrough" : "MDX")
             + (_.NAMESPACE ? "?Namespace=" + _.NAMESPACE : ""
         ), {
             MDX: mdx
-        }, function (data) {
-            _.LPT.pivotView.removeMessage();
-            ready.data = data;
-            ready.state++;
-            handleDataReady();
-        });
+        }, setData);
+
     };
 
     _.LPT.pivotView.displayLoading();

source/js/LightPivotTable.js

@@ -183,7 +183,9 @@ LightPivotTable.prototype.pushDataSource = function (config) {
     var newDataSource;
 
     this.DRILL_LEVEL++;
-    this._dataSourcesStack.push(newDataSource = new DataSource(config || {}, this.CONFIG, this));
+    this._dataSourcesStack.push(
+        newDataSource = new DataSource(config || {}, this.CONFIG, this, this.DRILL_LEVEL)
+    );
     this.dataSource = newDataSource;
 
     return newDataSource;