changes to support mongoose 3.0

Author: briankircho

lib/tree.js

@@ -22,7 +22,7 @@ function tree(schema, options) {
   });
 
   schema.pre('save', function(next) {
-    var isParentChange = this.modifiedPaths.indexOf('parent') !== -1;
+    var isParentChange = this.isModified('parent');
 
     if(this.isNew || isParentChange) {
       if(!this.parent) {

package.json

@@ -11,7 +11,7 @@
   "version": "0.0.1",
   "engine": "node >= 0.4.0",
   "dependencies": {
-    "mongoose": "~2.7.1"
+    "mongoose": "~3.0.0"
   },
   "devDependencies": {
     "async": "~0.1.22",

test/tree.js

@@ -64,7 +64,7 @@ describe('tree tests', function() {
         emily.remove(function(err) {
           should.not.exist(err);
 
-          User.find({}, ['name'], function(err, users) {
+          User.find(['name'], function(err, users) {
             should.not.exist(err);
             users.length.should.equal(4);
             _.pluck(users, 'name').should.not.include('Emily');
@@ -80,7 +80,7 @@ describe('tree tests', function() {
         user.remove(function(err) {
           should.not.exist(err);
 
-          User.find({}, ['name'], function(err, users) {
+          User.find(['name'], function(err, users) {
             should.not.exist(err);
 
             users.length.should.equal(2);