fix nested m2m recipes

model_mommy/recipe.py

@@ -55,7 +55,7 @@ def _mapping(self, new_attrs):
                 recipe_attrs = mommy.filter_rel_attrs(k, **a)
                 mapping[k] = v.recipe.make(**recipe_attrs)
             elif isinstance(v, related):
-                mapping[k] = v.prepare()
+                mapping[k] = v.make()
         mapping.update(new_attrs)
         mapping.update(rel_fields_attrs)
         return mapping
@@ -151,10 +151,9 @@ def __init__(self, *args):
             else:
                 raise TypeError('Not a recipe')
 
-    def prepare(self):
+    def make(self):
         """
-            Django related manager saves related set.
-            No need to persist at first
+         Persists objects to m2m relation
         """
-        return [m.prepare() for m in self.related]
+        return [m.make() for m in self.related]
 

test/generic/mommy_recipes.py

@@ -59,6 +59,10 @@
     friends_with=related(dog, dog),
 )
 
+dog_with_more_friends = dog.extend(
+    friends_with=related(dog_with_friends),
+)
+
 extended_dog = dog.extend(
     breed = 'Super basset',
 )

test/generic/tests/test_recipes.py

@@ -353,6 +353,12 @@ def test_create_many_to_many(self):
             self.assertEqual(friend.breed, 'Pug')
             self.assertEqual(friend.owner.name, 'John Doe')
 
+    def test_create_nested(self):
+        dog = mommy.make_recipe('test.generic.dog_with_more_friends')
+        self.assertEqual(len(dog.friends_with.all()), 1)
+        friend = dog.friends_with.all()[0]
+        self.assertEqual(len(friend.friends_with.all()), 2)
+
 
 class TestSequences(TestCase):
     def test_increment_for_strings(self):