Fix several issues.

mindplot/src/main/javascript/model/IMindmap.js

@@ -69,7 +69,7 @@ mindplot.model.IMindmap = new Class({
         $assert(!child.getParent(), 'Child model seems to be already connected');
 
         //  Connect node...
-        parent._appendChild(child);
+        parent.appendChild(child);
 
         // Remove from the branch ...
         this.removeBranch(child);
@@ -80,7 +80,7 @@ mindplot.model.IMindmap = new Class({
         $assert(child, 'Child can not be null.');
         $assert(parent, 'Child model seems to be already connected');
 
-        parent._removeChild(child);
+        parent.removeChild(child);
 
         this.addBranch(child);
     },
@@ -111,40 +111,21 @@ mindplot.model.IMindmap = new Class({
 
         var branches = this.getBranches();
         result = result + "version:" + this.getVersion();
+        result = result + " , [";
+
         for (var i = 0; i < branches.length; i++) {
             var node = branches[i];
             if (i != 0) {
-                result = result + ', ';
+                result = result + ',\n ';
             }
-            result = result + this._toString(node);
+            result = result + "(" + i + ") =>" + node.inspect();
         }
+        result = result + "]";
+
         result = result + ' } ';
         return result;
     },
 
-    _toString : function(node) {
-        var result = node.inspect();
-        var children = node.getChildren();
-
-        for (var i = 0; i < children.length; i++) {
-            var child = children[i];
-
-            if (i == 0) {
-                result = result + '-> {';
-            } else {
-                result = result + ', ';
-            }
-
-            result = result + this._toString(child);
-
-            if (i == children.length - 1) {
-                result = result + '}';
-            }
-        }
-
-        return result;
-    },
-
     copyTo : function(target) {
         var source = this;
         var version = source.getVersion();

mindplot/src/main/javascript/model/INodeModel.js

@@ -190,6 +190,16 @@ mindplot.model.INodeModel = new Class({
         return this.getParent() != null;
     },
 
+    appendChild : function(node) {
+        throw "Unsupported operation";
+    },
+
+
+    connectTo  : function(parent) {
+        $assert(parent, "parent can not be null");
+        var mindmap = this.getMindmap();
+        mindmap.connect(parent, this);
+    },
 
     getPropertiesKeys : function() {
         throw "Unsupported operation";
@@ -268,7 +278,10 @@ mindplot.model.INodeModel = new Class({
     },
 
     inspect  : function() {
-        return '(type:' + this.getType() + ' , id: ' + this.getId() + ')';
+        return '{ type: ' + this.getType() +
+            ' , id: ' + this.getId() +
+            ' , text: ' + this.getText() +
+            ' }';
     },
 
     copyTo : function(target) {
@@ -276,7 +289,7 @@ mindplot.model.INodeModel = new Class({
         var keys = source.getPropertiesKeys();
         keys.forEach(function(key) {
             var value = source.getProperty(key);
-            target.putProperty(value);
+            target.putProperty(key, value);
         });
         return target;
     }

mindplot/src/main/javascript/model/NodeModel.js

@@ -67,6 +67,12 @@ mindplot.model.NodeModel = new Class({
         return result;
     },
 
+    addChildren : function(){
+        $assert(child && child.isNodeModel(), 'Only NodeModel can be appended to Mindmap object');
+           this._children.push(child);
+           child._parent = this;
+    },
+
     createLink  : function(url) {
         $assert(url, 'Link URL must be specified.');
         return new mindplot.model.LinkModel(url, this);
@@ -116,13 +122,13 @@ mindplot.model.NodeModel = new Class({
         this._icons.pop();
     },
 
-    _appendChild  : function(child) {
+    appendChild  : function(child) {
         $assert(child && child.isNodeModel(), 'Only NodeModel can be appended to Mindmap object');
         this._children.push(child);
         child._parent = this;
     },
 
-    _removeChild  : function(child) {
+    removeChild  : function(child) {
         $assert(child && child.isNodeModel(), 'Only NodeModel can be appended to Mindmap object.');
         this._children.erase(child);
         child._parent = null;
@@ -217,12 +223,6 @@ mindplot.model.NodeModel = new Class({
 
     },
 
-    connectTo  : function(parent) {
-        var mindmap = this.getMindmap();
-        mindmap.connect(parent, this);
-        this._parent = parent;
-    },
-
     deleteNode  : function() {
         var mindmap = this._mindmap;