Fixed #7190 -- Corrected a problem with Boolean value handling on the MySQL backend. Thanks to George Vilches for the initial patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12900 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/backends/mysql/base.py

@@ -125,6 +125,8 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     related_fields_match_type = True
 
 class DatabaseOperations(BaseDatabaseOperations):
+    compiler_module = "django.db.backends.mysql.compiler"
+
     def date_extract_sql(self, lookup_type, field_name):
         # http://dev.mysql.com/doc/mysql/en/date-and-time-functions.html
         if lookup_type == 'week_day':

django/db/backends/mysql/compiler.py

@@ -0,0 +1,27 @@
+from django.db.models.sql import compiler
+
+class SQLCompiler(compiler.SQLCompiler):
+    def resolve_columns(self, row, fields=()):
+        values = []
+        for value, field in map(None, row, fields):
+            if (field and field.get_internal_type() in ("BooleanField", "NullBooleanField") and
+                value in (0, 1)):
+                value = bool(value)
+            values.append(value)
+        return tuple(values)
+
+
+class SQLInsertCompiler(compiler.SQLInsertCompiler, SQLCompiler):
+    pass
+
+class SQLDeleteCompiler(compiler.SQLDeleteCompiler, SQLCompiler):
+    pass
+
+class SQLUpdateCompiler(compiler.SQLUpdateCompiler, SQLCompiler):
+    pass
+
+class SQLAggregateCompiler(compiler.SQLAggregateCompiler, SQLCompiler):
+    pass
+
+class SQLDateCompiler(compiler.SQLDateCompiler, SQLCompiler):
+    pass

tests/regressiontests/model_fields/models.py

@@ -67,6 +67,8 @@ class Post(models.Model):
 class NullBooleanModel(models.Model):
     nbfield = models.NullBooleanField()
 
+class BooleanModel(models.Model):
+    bfield = models.BooleanField()
 
 ###############################################################################
 # ImageField

tests/regressiontests/model_fields/tests.py

@@ -6,7 +6,7 @@ from django import forms
 from django.db import models
 from django.core.exceptions import ValidationError
 
-from models import Foo, Bar, Whiz, BigD, BigS, Image, BigInt, Post, NullBooleanModel
+from models import Foo, Bar, Whiz, BigD, BigS, Image, BigInt, Post, NullBooleanModel, BooleanModel
 
 try:
     from decimal import Decimal
@@ -44,7 +44,7 @@ class BasicFieldTests(django.test.TestCase):
         """
         Regression test for #13071: NullBooleanField should not throw
         a validation error when given a value of None.
-        
+
         """
         nullboolean = NullBooleanModel(nbfield=None)
         try:
@@ -162,6 +162,35 @@ class BooleanFieldTests(unittest.TestCase):
         f = models.BooleanField(choices=choices, default=1, null=False)
         self.assertEqual(f.formfield().choices, choices)
 
+    def test_return_type(self):
+        b = BooleanModel()
+        b.bfield = True
+        b.save()
+        b2 = BooleanModel.objects.get(pk=b.pk)
+        self.assertTrue(isinstance(b2.bfield, bool))
+        self.assertEqual(b2.bfield, True)
+
+        b3 = BooleanModel()
+        b3.bfield = False
+        b3.save()
+        b4 = BooleanModel.objects.get(pk=b3.pk)
+        self.assertTrue(isinstance(b4.bfield, bool))
+        self.assertEqual(b4.bfield, False)
+
+        b = NullBooleanModel()
+        b.nbfield = True
+        b.save()
+        b2 = NullBooleanModel.objects.get(pk=b.pk)
+        self.assertTrue(isinstance(b2.nbfield, bool))
+        self.assertEqual(b2.nbfield, True)
+
+        b3 = NullBooleanModel()
+        b3.nbfield = False
+        b3.save()
+        b4 = NullBooleanModel.objects.get(pk=b3.pk)
+        self.assertTrue(isinstance(b4.nbfield, bool))
+        self.assertEqual(b4.nbfield, False)
+
 class ChoicesTests(django.test.TestCase):
     def test_choices_and_field_display(self):
         """