def test_managed_edits(self):
with revision:
queen = Artist(name='Queen')
queen.save()
self.assertEquals(len(Artist.objects.versions(queen)), 0)
prince = Artist(name='Prince')
prince.save()
self.assertEquals(len(Artist.objects.versions(prince)), 0)
prince.name = 'The Artist Formerly Known As Prince'
prince.save()
self.assertEquals(len(Artist.objects.versions(prince)), 0)
prince.name = 'Prince'
prince.save()
self.assertEquals(len(Artist.objects.versions(prince)), 0)
# Finish the versioning session.
# Verify that we have only commited once for all of the edits.
self.assertEquals(len(Artist.objects.versions(prince)), 1)
self.assertEquals(len(Artist.objects.versions(queen)), 1)
# Verify that both edits to Queen and Prince were tracked in the same revision.
self.assertEquals(Artist.objects.versions(prince), Artist.objects.versions(queen))
def test_revision_retrieval(self):
with revision:
prince = Artist(name='Prince')
prince.save()
first_revision = revision.latest_transactions['default']
with revision:
prince.name = 'The Artist Formerly Known As Prince'
prince.save()
second_revision = revision.latest_transactions['default']
with revision:
prince.name = 'Prince'
prince.save()
third_revision = revision.latest_transactions['default']
first_prince = Artist.objects.version(first_revision).get(pk=prince.pk)
self.assertEquals(first_prince.name, 'Prince')
self.assertEquals(first_prince._versions_revision, first_revision)
second_prince = Artist.objects.version(second_revision).get(pk=prince.pk)
self.assertEquals(second_prince.name, 'The Artist Formerly Known As Prince')
self.assertEquals(second_prince._versions_revision, second_revision)
third_prince = Artist.objects.version(third_revision).get(pk=prince.pk)
self.assertEquals(third_prince.name, 'Prince')
self.assertEquals(third_prince._versions_revision, third_revision)
