Add method $getRef to $firebase objects, fixes #252

Author: anantn

angularfire.js

@@ -43,18 +43,16 @@
       if (input) {
         if (!input.$getIndex || typeof input.$getIndex != "function") {
           // input is not an angularFire instance
-          if( angular.isArray(input) ) {
-            // if input is an array, copy it
+          if (angular.isArray(input)) {
+            // If input is an array, copy it
             sorted = input.slice(0);
-          }
-          else if( angular.isObject(input) ) {
+          } else if (angular.isObject(input)) {
             // If input is an object, map it to an array
             angular.forEach(input, function(prop) {
               sorted.push(prop);
             });
           }
-        }
-        else {
+        } else {
           // input is an angularFire instance
           var index = input.$getIndex();
           if (index.length > 0) {
@@ -140,7 +138,7 @@
       var self = this;
       var object = {};
 
-      // Set the $id val equal to the firebase reference's name() function.
+      // Set the $id val equal to the Firebase reference's name() function.
       object.$id = self._fRef.ref().name();
 
       // Establish a 3-way data binding (implicit sync) with the specified
@@ -391,6 +389,11 @@
         return angular.copy(self._index);
       };
 
+      // Return the reference used by this object.
+      object.$getRef = function() {
+        return self._fRef.ref();
+      };
+
       self._object = object;
       self._getInitialValue();
 

angularfire.min.js

@@ -126,6 +126,14 @@ casper.then(function() {
   }, "Testing if $add, $set, $save and $remove return a promise");
 });
 
+casper.then(function() {
+  this.test.assertEval(function() {
+    if (_scope.messages.$getRef().toString() != _url) return false;
+    if (!(_scope.messages.$getRef() instanceof Firebase)) return false;
+    return true;
+  }, "Testing if $getRef returns valid Firebase reference");
+});
+
 casper.then(function() {
   this.test.assertEval(function() {
     var empty = function() {};