Fixed #16246 -- Fixed GenericIPAddressField tests on PostgreSQL.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16395 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/fields/__init__.py

@@ -910,6 +910,7 @@ class BigIntegerField(IntegerField):
     empty_strings_allowed = False
     description = _("Big (8 byte) integer")
     MAX_BIGINT = 9223372036854775807
+
     def get_internal_type(self):
         return "BigIntegerField"
 
@@ -922,6 +923,7 @@ class BigIntegerField(IntegerField):
 class IPAddressField(Field):
     empty_strings_allowed = False
     description = _("IPv4 address")
+
     def __init__(self, *args, **kwargs):
         kwargs['max_length'] = 15
         Field.__init__(self, *args, **kwargs)
@@ -956,6 +958,11 @@ class GenericIPAddressField(Field):
                 self.unpack_ipv4, self.error_messages['invalid'])
         return value
 
+    def get_db_prep_value(self, value, connection, prepared=False):
+        if not prepared:
+            value = self.get_prep_value(value)
+        return value or None
+
     def get_prep_value(self, value):
         if value and ':' in value:
             try:

django/forms/fields.py

@@ -965,8 +965,8 @@ class GenericIPAddressField(CharField):
         super(GenericIPAddressField, self).__init__(*args, **kwargs)
 
     def to_python(self, value):
-        if not value:
-            return ''
+        if value in validators.EMPTY_VALUES:
+            return u''
         if value and ':' in value:
                 return clean_ipv6_address(value,
                     self.unpack_ipv4, self.error_messages['invalid'])

tests/modeltests/validation/models.py

@@ -84,9 +84,9 @@ class UniqueErrorsModel(models.Model):
     number = models.IntegerField(unique=True, error_messages={'unique': u'Custom unique number message.'})
 
 class GenericIPAddressTestModel(models.Model):
-    generic_ip = models.GenericIPAddressField(blank=True, unique=True)
-    v4_ip = models.GenericIPAddressField(blank=True, protocol="ipv4")
-    v6_ip = models.GenericIPAddressField(blank=True, protocol="ipv6")
+    generic_ip = models.GenericIPAddressField(blank=True, null=True, unique=True)
+    v4_ip = models.GenericIPAddressField(blank=True, null=True, protocol="ipv4")
+    v6_ip = models.GenericIPAddressField(blank=True, null=True, protocol="ipv6")
 
 class GenericIPAddrUnpackUniqueTest(models.Model):
     generic_v4unpack_ip = models.GenericIPAddressField(blank=True, unique=True, unpack_ipv4=True)