def test_autocommit_transaction(backend):
backend.filter(Movie, {}).delete()
try:
backend.autocommit = True
movie = Movie({'name': 'The Godfather', 'year': 1979, 'type': 'US'})
movie.save(backend)
backend.delete(movie)
movie.name = 'Star Wars IV'
movie.save(backend)
with pytest.raises(Movie.DoesNotExist):
backend.get(Movie, {
'name': 'The Godfather',
'year': 1979,
'type': 'US'
})
assert backend.get(Movie, {
'name': 'Star Wars IV',
'year': 1979
}) == movie
assert len(backend.filter(Movie, {'type': 'US'})) == 1
finally:
backend.autocommit = False
def test_advanced_transaction(backend):
backend.begin()
backend.filter(Movie, {}).delete()
movie = Movie({'name': 'The Godfather', 'year': 1979, 'type': 'US'})
movie.save(backend)
backend.commit()
backend.delete(movie)
movie.name = 'Star Wars IV'
movie.save(backend)
with pytest.raises(Movie.DoesNotExist):
backend.get(Movie, {
'name': 'The Godfather',
'year': 1979,
'type': 'US'
})
backend.rollback()
assert backend.get(Movie, {'name': 'The Godfather', 'year': 1979}) == movie
assert len(backend.filter(Movie, {'type': 'US'})) == 1
def test_advanced_transaction(transactional_backend):
transactional_backend.begin()
transactional_backend.filter(Movie, {}).delete()
transactional_backend.rollback()
movie = Movie({'name': 'The Godfather', 'year': 1979, 'type': 'US'})
movie.save(transactional_backend)
transactional_backend.commit()
transactional_backend.delete(movie)
movie.name = 'Star Wars IV'
movie.save(transactional_backend)
transactional_backend.rollback()
assert transactional_backend.get(Movie, {
'name': 'The Godfather',
'year': 1979,
'type': 'US'
}).name == 'The Godfather'
assert transactional_backend.get(Movie, {
'name': 'The Godfather',
'year': 1979
}) == movie
assert len(transactional_backend.filter(Movie, {'type': 'US'})) == 1
def test_autocommit_transaction(transactional_backend):
transactional_backend.filter(Movie,{}).delete()
try:
transactional_backend.autocommit = True
movie = Movie({'name' : 'The Godfather','year' : 1979,'type' : 'US'})
movie.save(transactional_backend)
transactional_backend.delete(movie)
movie.name = 'Star Wars IV'
movie.save(transactional_backend)
with pytest.raises(Movie.DoesNotExist):
transactional_backend.get(Movie,{'name' : 'The Godfather','year' : 1979,'type' : 'US'})
assert transactional_backend.get(Movie,{'name' : 'Star Wars IV','year' : 1979}) == movie
assert len(transactional_backend.filter(Movie,{'type':'US'})) == 1
finally:
transactional_backend.autocommit = False
def test_advanced_transaction(transactional_backend):
transactional_backend.begin()
transactional_backend.filter(Movie,{}).delete()
movie = Movie({'name' : 'The Godfather','year' : 1979,'type' : 'US'})
movie.save(transactional_backend)
transactional_backend.commit()
transactional_backend.delete(movie)
movie.name = 'Star Wars IV'
movie.save(transactional_backend)
with pytest.raises(Movie.DoesNotExist):
transactional_backend.get(Movie,{'name' : 'The Godfather','year' : 1979,'type' : 'US'})
transactional_backend.rollback()
assert transactional_backend.get(Movie,{'name' : 'The Godfather','year' : 1979}) == movie
assert len(transactional_backend.filter(Movie,{'type':'US'})) == 1
