Updated the tests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8268 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Malcolm Tredinnick 2008-08-09 17:19:44 +00:00
parent dc14b29fb3
commit c763f26173
3 changed files with 8 additions and 2 deletions

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@ -282,6 +282,7 @@ DoesNotExist: Restaurant matching query does not exist.
# The update() command can update fields in parent and child classes at once # The update() command can update fields in parent and child classes at once
# (although it executed multiple SQL queries to do so). # (although it executed multiple SQL queries to do so).
>>> Restaurant.objects.filter(serves_hot_dogs=True, name__contains='D').update(name='Demon Puppies', serves_hot_dogs=False) >>> Restaurant.objects.filter(serves_hot_dogs=True, name__contains='D').update(name='Demon Puppies', serves_hot_dogs=False)
1
>>> r1 = Restaurant.objects.get(pk=r.pk) >>> r1 = Restaurant.objects.get(pk=r.pk)
>>> r1.serves_hot_dogs == False >>> r1.serves_hot_dogs == False
True True

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@ -24,20 +24,21 @@ class RelatedPoint(models.Model):
__test__ = {'API_TESTS': """ __test__ = {'API_TESTS': """
>>> DataPoint(name="d0", value="apple").save() >>> DataPoint(name="d0", value="apple").save()
>>> DataPoint(name="d2", value="banana").save() >>> DataPoint(name="d2", value="banana").save()
>>> d3 = DataPoint(name="d3", value="banana") >>> d3 = DataPoint.objects.create(name="d3", value="banana")
>>> d3.save()
>>> RelatedPoint(name="r1", data=d3).save() >>> RelatedPoint(name="r1", data=d3).save()
Objects are updated by first filtering the candidates into a queryset and then Objects are updated by first filtering the candidates into a queryset and then
calling the update() method. It executes immediately and returns nothing. calling the update() method. It executes immediately and returns nothing.
>>> DataPoint.objects.filter(value="apple").update(name="d1") >>> DataPoint.objects.filter(value="apple").update(name="d1")
1
>>> DataPoint.objects.filter(value="apple") >>> DataPoint.objects.filter(value="apple")
[<DataPoint: d1>] [<DataPoint: d1>]
We can update multiple objects at once. We can update multiple objects at once.
>>> DataPoint.objects.filter(value="banana").update(value="pineapple") >>> DataPoint.objects.filter(value="banana").update(value="pineapple")
2
>>> DataPoint.objects.get(name="d2").value >>> DataPoint.objects.get(name="d2").value
u'pineapple' u'pineapple'
@ -46,12 +47,14 @@ referred to, not anything inside the related object.
>>> d = DataPoint.objects.get(name="d1") >>> d = DataPoint.objects.get(name="d1")
>>> RelatedPoint.objects.filter(name="r1").update(data=d) >>> RelatedPoint.objects.filter(name="r1").update(data=d)
1
>>> RelatedPoint.objects.filter(data__name="d1") >>> RelatedPoint.objects.filter(data__name="d1")
[<RelatedPoint: r1>] [<RelatedPoint: r1>]
Multiple fields can be updated at once Multiple fields can be updated at once
>>> DataPoint.objects.filter(value="pineapple").update(value="fruit", another_value="peaches") >>> DataPoint.objects.filter(value="pineapple").update(value="fruit", another_value="peaches")
2
>>> d = DataPoint.objects.get(name="d2") >>> d = DataPoint.objects.get(name="d2")
>>> d.value, d.another_value >>> d.value, d.another_value
(u'fruit', u'peaches') (u'fruit', u'peaches')
@ -60,6 +63,7 @@ In the rare case you want to update every instance of a model, update() is also
a manager method. a manager method.
>>> DataPoint.objects.update(value='thing') >>> DataPoint.objects.update(value='thing')
3
>>> DataPoint.objects.values('value').distinct() >>> DataPoint.objects.values('value').distinct()
[{'value': u'thing'}] [{'value': u'thing'}]

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@ -767,6 +767,7 @@ Updates that are filtered on the model being updated are somewhat tricky to get
in MySQL. This exercises that case. in MySQL. This exercises that case.
>>> mm = ManagedModel.objects.create(data='mm1', tag=t1, public=True) >>> mm = ManagedModel.objects.create(data='mm1', tag=t1, public=True)
>>> ManagedModel.objects.update(data='mm') >>> ManagedModel.objects.update(data='mm')
1
A values() or values_list() query across joined models must use outer joins A values() or values_list() query across joined models must use outer joins
appropriately. appropriately.