boulder-oracle-sprint: Fixed #4093 and added tests that cover it and the tricky datetime

fields.


git-svn-id: http://code.djangoproject.com/svn/django/branches/boulder-oracle-sprint@5046 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/backends/oracle/base.py

@@ -454,7 +454,8 @@ def get_query_set_class(DefaultQuerySet):
                 return select, " ".join(sql), params
 
         def resolve_columns(self, row, fields=()):
-            from django.db.models.fields import DateField, DateTimeField, TimeField
+            from django.db.models.fields import DateField, DateTimeField, \
+                TimeField, BooleanField, NullBooleanField
             values = []
             for value, field in map(None, row, fields):
                 if isinstance(value, Database.LOB):
@@ -464,6 +465,9 @@ def get_query_set_class(DefaultQuerySet):
                 # where we undo that treachery.
                 if value == ' ':
                     value = ''
+                # Convert 1 or 0 to True or False
+                elif value in (1, 0) and isinstance(field, (BooleanField, NullBooleanField)):
+                    value = bool(value)
                 # cx_Oracle always returns datetime.datetime objects for
                 # DATE and TIMESTAMP columns, but Django wants to see a
                 # python datetime.date, .time, or .datetime.  We use the type

django/db/models/fields/__init__.py

@@ -537,6 +537,7 @@ class DateTimeField(DateField):
             # neither database supports microseconds.
             if settings.DATABASE_ENGINE in ('mysql', 'oracle') and hasattr(value, 'microsecond'):
                 value = value.replace(microsecond=0)
+            value = str(value)
         return Field.get_db_prep_save(self, value)
 
     def get_db_prep_lookup(self, lookup_type, value):

tests/modeltests/datatypes/models.py

@@ -0,0 +1,60 @@
+"""
+1. Simple data types testing.
+
+This is a basic model to test saving and loading boolean and date-related
+types, which in the past were problematic for some database backends.
+"""
+
+from django.db import models
+
+class Donut(models.Model):
+    name = models.CharField(maxlength=100)
+    is_frosted = models.BooleanField(default=False)
+    has_sprinkles = models.NullBooleanField()
+    baked_date = models.DateField(null=True)
+    baked_time = models.TimeField(null=True)
+    consumed_at = models.DateTimeField(null=True)
+
+    class Meta:
+        ordering = ('consumed_at',)
+
+    def __str__(self):
+        return self.name
+
+__test__ = {'API_TESTS': """
+# No donuts are in the system yet.
+>>> Donut.objects.all()
+[]
+
+>>> d = Donut(name='Apple Fritter')
+
+# Ensure we're getting True and False, not 0 and 1
+>>> d.is_frosted
+False
+>>> d.has_sprinkles
+>>> d.has_sprinkles = True
+>>> d.has_sprinkles
+True
+>>> d.save()
+>>> d2 = Donut.objects.all()[0]
+>>> d2
+<Donut: Apple Fritter>
+>>> d2.is_frosted
+False
+>>> d2.has_sprinkles
+True
+
+>>> import datetime
+>>> d2.baked_date = datetime.date(year=1938, month=6, day=4)
+>>> d2.baked_time = datetime.time(hour=5, minute=30)
+>>> d2.consumed_at = datetime.datetime(year=2007, month=4, day=20, hour=16, minute=19, second=59)
+>>> d2.save()
+
+>>> d3 = Donut.objects.all()[0]
+>>> d3.baked_date
+datetime.date(1938, 6, 4)
+>>> d3.baked_time
+datetime.time(5, 30)
+>>> d3.consumed_at
+datetime.datetime(2007, 4, 20, 16, 19, 59)
+"""}