Fixed #9640, #10549: BooleanFields with choices, a default, and null=False now correctly doesn't generate a blank option.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10500 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/fields/__init__.py

@@ -401,6 +401,12 @@ class BooleanField(Field):
         return bool(value)
 
     def formfield(self, **kwargs):
+        # Unlike most fields, BooleanField figures out include_blank from
+        # self.null instead of self.blank.
+        if self.choices:
+            include_blank = self.null or not (self.has_default() or 'initial' in kwargs)
+            defaults = {'choices': self.get_choices(include_blank=include_blank)}
+        else:
             defaults = {'form_class': forms.BooleanField}
         defaults.update(kwargs)
         return super(BooleanField, self).formfield(**defaults)

tests/regressiontests/model_fields/tests.py

@@ -1,6 +1,7 @@
 import datetime
 import unittest
 import django.test
+from django import forms
 from django.db import models
 from django.core.exceptions import ValidationError
 from models import Foo, Bar, Whiz, BigD, BigS
@@ -87,6 +88,18 @@ class BooleanFieldTests(unittest.TestCase):
     def test_nullbooleanfield_get_db_prep_lookup(self):
         self._test_get_db_prep_lookup(models.NullBooleanField())
 
+    def test_booleanfield_choices_blank(self):
+        """
+        Test that BooleanField with choices and defaults doesn't generate a
+        formfield with the blank option (#9640, #10549).
+        """
+        choices = [(1, u'Si'), (2, 'No')]
+        f = models.BooleanField(choices=choices, default=1, null=True)
+        self.assertEqual(f.formfield().choices, [('', '---------')] + choices)
+
+        f = models.BooleanField(choices=choices, default=1, null=False)
+        self.assertEqual(f.formfield().choices, choices)
+
 class ChoicesTests(django.test.TestCase):
     def test_choices_and_field_display(self):
         """