Sorting the data during tree data loading using the natural sort

algorithm.

This patch takes care of:
* Consistent behaviour during create, update operation on any node.
  - It should return the node data during creating a new object, or
    updating the existing one.
* Now that - we have consistent behaviour during these operations, we
  can consistently move, update the tree item based the node data from
  the server.
* Implemented the methods for each node to get the information about
  that particular node only.
* Using the above changes to implement the 'refresh' operation on tree
  node properly.

I must thank Surinder, and Harshal for helping me implement the 'node'
method, and also changed the behaviour of create & update methods to
return the node data for most of the nodes.

Fixes #1244

web/pgadmin/misc/depends/static/js/depends.js

@@ -123,6 +123,18 @@ define([
                         this.dependenciesPanelVisibilityChanged);
       pgBrowser.Events.on('pgadmin-browser:panel-dependents:' + wcDocker.EVENT.VISIBILITY_CHANGED,
                         this.dependentsPanelVisibilityChanged);
+      pgBrowser.Events.on(
+        'pgadmin:browser:node:updated', function() {
+          if (this.dependenciesPanels && this.dependenciesPanels.length) {
+            $(this.dependenciesPanels[0]).data('node-prop', '');
+            this.dependenciesPanelVisibilityChanged(this.dependenciesPanels[0]);
+          }
+          if (this.dependentsPanels && this.dependentsPanels.length) {
+            $(this.dependentsPanels[0]).data('node-prop', '');
+            this.dependentsPanelVisibilityChanged(this.dependentsPanels[0]);
+          }
+        }, this
+      );
 
       // We will render the grid objects in the panel after some time, because -
       // it is possible, it is not yet available.
@@ -232,7 +244,7 @@ define([
             error: function(coll, xhr, error, message) {
               var _label = treeHierarchy[n_type].label;
               pgBrowser.Events.trigger(
-                'pgadmin:node:retrieval:error', 'depends', xhr, status, error
+                'pgadmin:node:retrieval:error', 'depends', xhr, error, message
               );
               if (
                 !Alertify.pgHandleItemError(xhr, error, message, {
@@ -240,7 +252,7 @@ define([
                 })
               ) {
                 Alertify.pgNotifier(
-                  status, xhr,
+                  error, xhr,
                   S(
                     pgBrowser.messages['ERR_RETRIEVAL_INFO']
                   ).sprintf(message || _label).value(),

web/pgadmin/misc/sql/static/js/sql.js

@@ -25,6 +25,15 @@ define([
         this.sqlPanelVisibilityChanged
       );
 
+      pgBrowser.Events.on(
+        'pgadmin:browser:node:updated', function() {
+          if (this.sqlPanels && this.sqlPanels.length) {
+            $(this.sqlPanels[0]).data('node-prop', '');
+            this.sqlPanelVisibilityChanged(this.sqlPanels[0]);
+          }
+        }, this
+      );
+
       // Hmm.. Did we find the SQL panel, and is it visible (opened)?
       // If that is the case - we need to listen the browser tree selection
       // events.
@@ -88,7 +97,7 @@ define([
                 error: function(xhr, error, message) {
                   var _label = treeHierarchy[n_type].label;
                   pgBrowser.Events.trigger(
-                    'pgadmin:node:retrieval:error', 'sql', xhr, status, error, item
+                    'pgadmin:node:retrieval:error', 'sql', xhr, error, message, item
                   );
                   if (
                     !Alertify.pgHandleItemError(xhr, error, message, {
@@ -96,7 +105,7 @@ define([
                     })
                   ) {
                     Alertify.pgNotifier(
-                      status, xhr,
+                      error, xhr,
                       S(
                         pgBrowser.messages['ERR_RETRIEVAL_INFO']
                       ).sprintf(message || _label).value(),

web/pgadmin/misc/statistics/static/js/statistics.js

@@ -104,9 +104,19 @@ define([
 
       // We will listen to the visibility change of the statistics panel
       pgBrowser.Events.on(
-          'pgadmin-browser:panel-statistics:' +
-              wcDocker.EVENT.VISIBILITY_CHANGED,
-          this.panelVisibilityChanged);
+        'pgadmin-browser:panel-statistics:' +
+          wcDocker.EVENT.VISIBILITY_CHANGED,
+          this.panelVisibilityChanged
+      );
+
+      pgBrowser.Events.on(
+        'pgadmin:browser:node:updated', function() {
+          if (this.panel && this.panel.length) {
+            $(this.panel[0]).data('node-prop', '');
+            this.panelVisibilityChanged(this.panel[0]);
+          }
+        }, this
+      );
 
       // Hmm.. Did we find the statistics panel, and is it visible (openned)?
       // If that is the case - we need to listen the browser tree selection
@@ -214,7 +224,7 @@ define([
             error: function(xhr, error, message) {
               var _label = treeHierarchy[n_type].label;
               pgBrowser.Events.trigger(
-                'pgadmin:node:retrieval:error', 'statistics', xhr, status, error, item
+                'pgadmin:node:retrieval:error', 'statistics', xhr, error, message, item
               );
               if (
                 !Alertify.pgHandleItemError(xhr, error, message, {
@@ -222,7 +232,7 @@ define([
                 })
               ) {
                 Alertify.pgNotifier(
-                  status, xhr,
+                  error, xhr,
                   S(
                     pgBrowser.messages['ERR_RETRIEVAL_INFO']
                   ).sprintf(message || _label).value(),