Fixed #1443 -- Django's various bits now support dates before 1900. Thanks to SmileyChris, Chris Green, Fredrik Lundh and others for patches and design help

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7946 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/serializers/base.py

@@ -8,6 +8,7 @@ except ImportError:
     from StringIO import StringIO
 from django.db import models
 from django.utils.encoding import smart_str, smart_unicode
+from django.utils import datetime_safe
 
 class SerializationError(Exception):
     """Something bad happened during serialization."""
@@ -59,7 +60,8 @@ class Serializer(object):
         Convert a field's value to a string.
         """
         if isinstance(field, models.DateTimeField):
-            value = getattr(obj, field.name).strftime("%Y-%m-%d %H:%M:%S")
+            d = datetime_safe.new_datetime(getattr(obj, field.name))
+            value = d.strftime("%Y-%m-%d %H:%M:%S")
         else:
             value = field.flatten_data(follow=None, obj=obj).get(field.name, "")
         return smart_unicode(value)

django/core/serializers/json.py

@@ -6,6 +6,7 @@ import datetime
 from django.utils import simplejson
 from django.core.serializers.python import Serializer as PythonSerializer
 from django.core.serializers.python import Deserializer as PythonDeserializer
+from django.utils import datetime_safe
 try:
     from cStringIO import StringIO
 except ImportError:
@@ -20,7 +21,7 @@ class Serializer(PythonSerializer):
     Convert a queryset to JSON.
     """
     internal_use_only = False
-    
+
     def end_serialization(self):
         self.options.pop('stream', None)
         self.options.pop('fields', None)
@@ -51,9 +52,11 @@ class DjangoJSONEncoder(simplejson.JSONEncoder):
 
     def default(self, o):
         if isinstance(o, datetime.datetime):
-            return o.strftime("%s %s" % (self.DATE_FORMAT, self.TIME_FORMAT))
+            d = datetime_safe.new_datetime(o)
+            return d.strftime("%s %s" % (self.DATE_FORMAT, self.TIME_FORMAT))
         elif isinstance(o, datetime.date):
-            return o.strftime(self.DATE_FORMAT)
+            d = datetime_safe.new_date(o)
+            return d.strftime(self.DATE_FORMAT)
         elif isinstance(o, datetime.time):
             return o.strftime(self.TIME_FORMAT)
         elif isinstance(o, decimal.Decimal):