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Fixed #7190. Boolean fields now return bool values instead of 1 or 0.…

… Thanks, Alex Gaynor.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12578 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit 16fe73d918c8a35f7122aed858312bd3163ac454 1 parent 9f4bf52
@jkocherhans jkocherhans authored
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25 django/db/models/fields/__init__.py
@@ -524,9 +524,14 @@ def get_internal_type(self):
return "BooleanField"
def to_python(self, value):
- if value in (True, False): return value
- if value in ('t', 'True', '1'): return True
- if value in ('f', 'False', '0'): return False
+ if value in (True, False):
+ # if value is 1 or 0 than it's equal to True or False, but we want
+ # to return a true bool for semantic reasons.
+ return bool(value)
+ if value in ('t', 'True', '1'):
+ return True
+ if value in ('f', 'False', '0'):
+ return False
raise exceptions.ValidationError(self.error_messages['invalid'])
def get_prep_lookup(self, lookup_type, value):
@@ -934,10 +939,16 @@ def get_internal_type(self):
return "NullBooleanField"
def to_python(self, value):
- if value in (None, True, False): return value
- if value in ('None',): return None
- if value in ('t', 'True', '1'): return True
- if value in ('f', 'False', '0'): return False
+ if value is None:
+ return None
+ if value in (True, False):
+ return bool(value)
+ if value in ('None',):
+ return None
+ if value in ('t', 'True', '1'):
+ return True
+ if value in ('f', 'False', '0'):
+ return False
raise exceptions.ValidationError(self.error_messages['invalid'])
def get_prep_lookup(self, lookup_type, value):
View
11 docs/ref/databases.txt
@@ -326,12 +326,11 @@ Notes on specific fields
Boolean fields
~~~~~~~~~~~~~~
-Since MySQL doesn't have a direct ``BOOLEAN`` column type, Django uses a
-``TINYINT`` column with values of ``1`` and ``0`` to store values for the
-:class:`~django.db.models.BooleanField` model field. Refer to the documentation
-of that field for more details, but usually this won't be something that will
-matter unless you're printing out the field values and are expecting to see
-``True`` and ``False.``.
+.. versionchanged:: 1.2
+
+In previous versions of Django when running under MySQL ``BooleanFields`` would
+return their data as ``ints``, instead of true ``bools``. See the release
+notes for a complete description of the change.
Character fields
~~~~~~~~~~~~~~~~
View
17 docs/ref/models/fields.txt
@@ -342,18 +342,11 @@ A true/false field.
The admin represents this as a checkbox.
-.. admonition:: MySQL users..
-
- A boolean field in MySQL is stored as a ``TINYINT`` column with a value of
- either 0 or 1 (most databases have a proper ``BOOLEAN`` type instead). So,
- for MySQL, only, when a ``BooleanField`` is retrieved from the database
- and stored on a model attribute, it will have the values 1 or 0, rather
- than ``True`` or ``False``. Normally, this shouldn't be a problem, since
- Python guarantees that ``1 == True`` and ``0 == False`` are both true.
- Just be careful if you're writing something like ``obj is True`` when
- ``obj`` is a value from a boolean attribute on a model. If that model was
- constructed using the ``mysql`` backend, the "``is``" test will fail.
- Prefer an equality test (using "``==``") in cases like this.
+.. versionchanged:: 1.2
+
+ In previous versions of Django when running under MySQL ``BooleanFields``
+ would return their data as ``ints``, instead of true ``bools``. See the
+ release notes for a complete description of the change.
``CharField``
-------------
View
10 docs/releases/1.2.txt
@@ -302,6 +302,16 @@ created using ``decorator_from_middleware``.
.. _deprecated-features-1.2:
+``BooleanField`` on MySQL
+--------------------------
+
+In previous versions of Django ``BoleanFields`` under MySQL would return their
+values as either ``1`` or ``0``, instead of ``True`` or ``False``. For most
+people this shouldn't have been a problem because ``bool`` is a subclass of
+``int``, however in Django 1.2 MySQL correctly returns a real ``bool``. The
+only time this should ever be an issue is if you were expecting printing the
+``repr`` of a ``BooleanField`` to print ``1`` or ``0``.
+
Features deprecated in 1.2
==========================
View
10 tests/regressiontests/model_fields/tests.py
@@ -108,12 +108,22 @@ def _test_get_db_prep_lookup(self, f):
self.assertEqual(f.get_db_prep_lookup('exact', 0, connection=connection), [False])
self.assertEqual(f.get_db_prep_lookup('exact', None, connection=connection), [None])
+ def _test_to_python(self, f):
+ self.assertTrue(f.to_python(1) is True)
+ self.assertTrue(f.to_python(0) is False)
+
def test_booleanfield_get_db_prep_lookup(self):
self._test_get_db_prep_lookup(models.BooleanField())
def test_nullbooleanfield_get_db_prep_lookup(self):
self._test_get_db_prep_lookup(models.NullBooleanField())
+ def test_booleanfield_to_python(self):
+ self._test_to_python(models.BooleanField())
+
+ def test_nullbooleanfield_to_python(self):
+ self._test_to_python(models.NullBooleanField())
+
def test_booleanfield_choices_blank(self):
"""
Test that BooleanField with choices and defaults doesn't generate a
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