From ca33d307dee3cf68cc9cd2ccfae00c7ff23ea890 Mon Sep 17 00:00:00 2001
From: Adrian Holovaty <adrian@holovaty.com>
Date: Sat, 15 Sep 2007 21:57:25 +0000
Subject: queryset-refactor: Merged to [6300]

git-svn-id: http://code.djangoproject.com/svn/django/branches/queryset-refactor@6340 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 django/db/models/base.py            |  4 +++-
 django/db/models/fields/__init__.py | 10 ++++++++++
 django/db/models/manager.py         |  4 ++++
 django/db/models/manipulators.py    |  3 +--
 4 files changed, 18 insertions(+), 3 deletions(-)

(limited to 'django/db/models')

diff --git a/django/db/models/base.py b/django/db/models/base.py
index b728150a40..208dfadddd 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -247,6 +247,7 @@ class Model(object):
                     qn(self._meta.order_with_respect_to.column))
                 cursor.execute(subsel, (getattr(self, self._meta.order_with_respect_to.attname),))
                 db_values.append(cursor.fetchone()[0])
+            record_exists = False
             if db_values:
                 cursor.execute("INSERT INTO %s (%s) VALUES (%s)" % \
                     (qn(self._meta.db_table), ','.join(field_names),
@@ -261,7 +262,8 @@ class Model(object):
         transaction.commit_unless_managed()
 
         # Run any post-save hooks.
-        dispatcher.send(signal=signals.post_save, sender=self.__class__, instance=self)
+        dispatcher.send(signal=signals.post_save, sender=self.__class__,
+                instance=self, created=(not record_exists))
 
     save.alters_data = True
 
diff --git a/django/db/models/fields/__init__.py b/django/db/models/fields/__init__.py
index 8fa091dd76..5b7adb2fb9 100644
--- a/django/db/models/fields/__init__.py
+++ b/django/db/models/fields/__init__.py
@@ -919,11 +919,21 @@ class PhoneNumberField(IntegerField):
 class PositiveIntegerField(IntegerField):
     def get_manipulator_field_objs(self):
         return [oldforms.PositiveIntegerField]
+    
+    def formfield(self, **kwargs):
+        defaults = {'min_value': 0}
+        defaults.update(kwargs)
+        return super(PositiveIntegerField, self).formfield(**defaults) 
 
 class PositiveSmallIntegerField(IntegerField):
     def get_manipulator_field_objs(self):
         return [oldforms.PositiveSmallIntegerField]
 
+    def formfield(self, **kwargs):
+        defaults = {'min_value': 0}
+        defaults.update(kwargs)
+        return super(PositiveSmallIntegerField, self).formfield(**defaults) 
+
 class SlugField(CharField):
     def __init__(self, *args, **kwargs):
         kwargs['max_length'] = kwargs.get('max_length', 50)
diff --git a/django/db/models/manager.py b/django/db/models/manager.py
index 040b86656a..7b2e916738 100644
--- a/django/db/models/manager.py
+++ b/django/db/models/manager.py
@@ -111,3 +111,7 @@ class ManagerDescriptor(object):
         if instance != None:
             raise AttributeError, "Manager isn't accessible via %s instances" % type.__name__
         return self.manager
+
+class EmptyManager(Manager):
+    def get_query_set(self):
+        return self.get_empty_query_set()
diff --git a/django/db/models/manipulators.py b/django/db/models/manipulators.py
index c3e5292198..e0085d13ff 100644
--- a/django/db/models/manipulators.py
+++ b/django/db/models/manipulators.py
@@ -9,7 +9,6 @@ from django.utils.datastructures import DotExpandedDict
 from django.utils.text import capfirst
 from django.utils.encoding import smart_str
 from django.utils.translation import ugettext as _
-import types
 
 def add_manipulators(sender):
     cls = sender
@@ -38,7 +37,7 @@ class ManipulatorDescriptor(object):
                 bases = [self.base]
                 if hasattr(model, 'Manipulator'):
                     bases = [model.Manipulator] + bases
-                self.man = types.ClassType(self.name, tuple(bases), {})
+                self.man = type(self.name, tuple(bases), {})
                 self.man._prepare(model)
             return self.man
 
-- 
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