[Jaffa-svn] SF.net SVN: jaffa:[4897] branches/JAFFA_5_7_RELEASE/JaffaRIA/source/html/js /extjs/ux/maximgb/treegrid/TreeGridStores.js

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Revision: 4897
          http://jaffa.svn.sourceforge.net/jaffa/?rev=4897&view=rev
Author:   gautamj
Date:     2010-11-24 22:49:52 +0000 (Wed, 24 Nov 2010)

Log Message:
-----------
Optimized the loadRecords() function in TreeGridStores.js to bunch all newly created rows in a single 'add' event, rather than firing a separate event for each row. This greatly speeds up rendering, especially when displaying hundreds of records.

Modified Paths:
--------------
    branches/JAFFA_5_7_RELEASE/JaffaRIA/source/html/js/extjs/ux/maximgb/treegrid/TreeGridStores.js

Modified: branches/JAFFA_5_7_RELEASE/JaffaRIA/source/html/js/extjs/ux/maximgb/treegrid/TreeGridStores.js
===================================================================
--- branches/JAFFA_5_7_RELEASE/JaffaRIA/source/html/js/extjs/ux/maximgb/treegrid/TreeGridStores.js	2010-11-24 20:57:04 UTC (rev 4896)
+++ branches/JAFFA_5_7_RELEASE/JaffaRIA/source/html/js/extjs/ux/maximgb/treegrid/TreeGridStores.js	2010-11-24 22:49:52 UTC (rev 4897)
@@ -208,15 +208,16 @@
         this.removeNodeDescendants(loaded_node);
       }
       this.suspendEvents();
-      updated = {};
+      updated = null;
       for (i = 0, len = r.length; i < len; i++) {
         record = r[i];
         idx = this.indexOfId(record.id);
         if (idx == -1) {
-          updated[record.id] = false;
           this.add(record);
         }
         else {
+          if (!updated)
+            updated = {};
           updated[record.id] = true;
           prev_record = this.getAt(idx);
           prev_record.reject();
@@ -239,15 +240,18 @@
         return result;
       });
       
-      for (i = 0, len = r.length; i < len; i++) {
-        record = r[i];
-        if (updated[record.id] == true) {
-          this.fireEvent('update', this, record, Ext.data.Record.COMMIT);
+      if (updated) {
+        for (i = 0, len = r.length; i < len; i++) {
+          record = r[i];
+          if (updated[record.id] == true) {
+            this.fireEvent('update', this, record, Ext.data.Record.COMMIT);
+          }
+          else {
+            this.fireEvent("add", this, [record], this.data.indexOf(record));
+          }
         }
-        else {
-          this.fireEvent("add", this, [record], this.data.indexOf(record));
-        }
-      }
+      } else
+        this.fireEvent("add", this, r, this.data.indexOf(r[0]));
     }
     this.fireEvent("load", this, r, options);
     if (options.callback) {


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