Angular 1.2 fix for arrays

A broken watch since it lacked a '.' in 1.2 when object path doesn't use brackets.

Author: davidlgj

src/directives/array.js

@@ -33,6 +33,10 @@ angular.module('schemaForm').directive('sfArray', ['sfSelect', 'schemaForm', 'sf
  // It's the (first) array part of the key, '[]' that needs a number
  // corresponding to an index of the form.
  var once = scope.$watch(attrs.sfArray, function(form) {
+ if (!form) {
+ return;
+ }
+
 
  // An array model always needs a key so we know what part of the model
  // to look at. This makes us a bit incompatible with JSON Form, on the
@@ -42,7 +46,8 @@ angular.module('schemaForm').directive('sfArray', ['sfSelect', 'schemaForm', 'sf
  // We only modify the same array instance but someone might change the array from
  // the outside so let's watch for that. We use an ordinary watch since the only case
  // we're really interested in is if its a new instance.
- scope.$watch('model' + sfPath.normalize(form.key), function(value) {
+ var key = sfPath.normalize(form.key);
+ scope.$watch('model' + (key[0] !== '[' ? '.' : '') + key, function(value) {
  list = scope.modelArray = value;
  });