Remove now-unused NullCharField

It would be straightforward if we just needed to remove the field class
definition, but we also need to update all migrations that referenced it
so we don't have problems starting and migrating from scratch.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 8 deletions

diff --git a/mirrors/models.py b/mirrors/models.py
index c23622fa..19437610 100644
--- a/mirrors/models.py
+++ b/mirrors/models.py
@@ -5,14 +5,6 @@ from django.db import models
 from django.core.exceptions import ValidationError
 from django_countries import CountryField
 
-class NullCharField(models.CharField):
-    description = "String (up to %(max_length)s), NULL if value is empty"
-    _south_introspects = True
-
-    def get_prep_value(self, value):
-        if value == '':
-            return None
-        return self.to_python(value)
 
 TIER_CHOICES = (
     (0, 'Tier 0'),
@@ -21,6 +13,7 @@ TIER_CHOICES = (
     (-1, 'Untiered'),
 )
 
+
 class Mirror(models.Model):
     name = models.CharField(max_length=255, unique=True)
     tier = models.SmallIntegerField(default=2, choices=TIER_CHOICES)