# START note = Note(title="my first note", text="Yay!") note = Note(title="my second note", text="Whee!") address1.save() address2.save() # COMMIT
def register(request):
user = None
if request.method == 'POST':
form = UserForm(request.POST)
if form.is_valid():
customer = Customer.create("subscription",
email = form.cleaned_data['email'],
description = form.cleaned_data['name'],
card = form.cleaned_data['stripe_token'],
plan="gold",
)
cd = form.cleaned_data
try:
user = User.create(cd['name'], cd['email'], cd['password'],
cd['last_4_digits'])
if customer:
user.stripe_id = customer.id
user.save()
else:
UnpaidUsers(email=cd['email']).save()
except IntegrityError:
form.addError(cd['email'] + ' is already a member')
else:
request.session['user'] = user.pk
return HttpResponseRedirect('/')
else:
form = UserForm()
return render_to_response(
'register.html',
{
'form': form,
'months': range(1, 12),
'publishable': settings.STRIPE_PUBLISHABLE,
'soon': soon(),
'user': user,
'years': range(2011, 2036),
},
context_instance=RequestContext(request)
)
cd = form.cleaned_data
try:
user = User.create(cd['name'], cd['email'], cd['password'], cd['last_4_digits'])
if customer:
user.stripe_id = customer.id
user.save()
else:
UnpaidUsers(email=cd['email']).save()
except IntegrityError:
@mock.patch('payments.models.UnpaidUsers.save', side_effect = IntegrityError)
def test_registering_user_when_strip_is_down_all_or_nothing(self, save_mock):
#create the request used to test the view
self.request.session = {}
self.request.method='POST'
self.request.POST = {'email' : 'python@rocks.com',
'name' : 'pyRock',
'stripe_token' : '...',
'last_4_digits' : '4242',
'password' : 'bad_password',
'ver_password' : 'bad_password',
}
#mock out stripe and ask it to throw a connection error
with mock.patch('stripe.Customer.create', side_effect =
socket.error("can't connect to stripe")) as stripe_mock:
#run the test
resp = register(self.request)
#assert there is no record in the database without stripe id.
users = User.objects.filter(email="python@rocks.com")
self.assertEquals(len(users), 0)
#check the associated table also didn't get updated
unpaid = UnpaidUsers.objects.filter(email="python@rocks.com")
self.assertEquals(len(unpaid), 0)
resp = register(self.request)
#assert there is no record in the database without stripe_id. users = User.objects.filter(email="python@rocks.com") self.assertEquals(len(users), 0) #check the associated table also didn't get updated unpaid = UnpaidUsers.objects.filter(email="python@rocks.com") self.assertEquals(len(unpaid), 0)
====================================================================== FAIL: test_registering_user_when_strip_is_down_all_or_nothing (tests.payments.testViews.RegisterPageTests) ---------------------------------------------------------------------- Traceback (most recent call last): File "/Users/j1z0/.virtualenvs/django_1.6/lib/python2.7/site-packages/mock.py", line 1201, in patched return func(*args, **keywargs) File "/Users/j1z0/Code/RealPython/mvp_for_Adv_Python_Web_Book/tests/payments/testViews.py", line 266, in test_registering_user_when_strip_is_down_all_or_nothing self.assertEquals(len(users), 0) AssertionError: 1 != 0 ----------------------------------------------------------------------
from django.db import transaction
try:
with transaction.atomic():
user = User.create(cd['name'], cd['email'], cd['password'], cd['last_4_digits'])
if customer:
user.stripe_id = customer.id
user.save()
else:
UnpaidUsers(email=cd['email']).save()
except IntegrityError:
form.addError(cd['email'] + ' is already a member')
@transaction.atomic():
def register(request):
...snip....
try:
user = User.create(cd['name'], cd['email'], cd['password'], cd['last_4_digits'])
if customer:
user.stripe_id = customer.id
user.save()
else:
UnpaidUsers(email=cd['email']).save()
except IntegrityError:
form.addError(cd['email'] + ' is already a member')
from django.db import transaction
try:
with transaction.atomic():
user = User.create(cd['name'], cd['email'], cd['password'], cd['last_4_digits'])
if customer:
user.stripe_id = customer.id
user.save()
else:
UnpaidUsers(email=cd['email']).save()
except IntegrityError:
form.addError(cd['email'] + ' is already a member')
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(SITE_ROOT, 'test.db'),
'ATOMIC_REQUEST': True,
}
}
@transaction.atomic()
def save_points(self,save=True):
user = User.create('jj','inception','jj','1234')
sp1 = transaction.savepoint()
user.name = 'zheli hui guadiao, T.T'
user.stripe_id = 4
user.save()
if save:
transaction.savepoint_commit(sp1)
else:
transaction.savepoint_rollback(sp1)
user.name = 'zheli hui guadiao, T.T' user.stripe_id = 4 user.save()
def test_savepoint_rollbacks(self): self.save_points(False) #verify that everything was stored users = User.objects.filter(email="inception") self.assertEquals(len(users), 1) #note the values here are from the original create call self.assertEquals(users[0].stripe_id, '') self.assertEquals(users[0].name, 'jj') def test_savepoint_commit(self): self.save_points(True) #verify that everything was stored users = User.objects.filter(email="inception") self.assertEquals(len(users), 1) #note the values here are from the update calls self.assertEquals(users[0].stripe_id, '4') self.assertEquals(users[0].name, 'starting down the rabbit hole')
@transaction.atomic()
def save_points(self,save=True):
user = User.create('jj','inception','jj','1234')
sp1 = transaction.savepoint()
user.name = 'starting down the rabbit hole'
user.save()
user.stripe_id = 4
user.save()
if save:
transaction.savepoint_commit(sp1)
else:
transaction.savepoint_rollback(sp1)
user.create('limbo','illbehere@forever','mind blown',
'1111')
@transaction.atomic()
def save_points(self,save=True):
user = User.create('jj','inception','jj','1234')
sp1 = transaction.savepoint()
user.name = 'starting down the rabbit hole'
user.save()
user.stripe_id = 4
user.save()
if save:
transaction.savepoint_commit(sp1)
else:
transaction.savepoint_rollback(sp1)
try:
with transaction.atomic():
user.create('limbo','illbehere@forever','mind blown',
'1111')
if not save: raise DatabaseError
except DatabaseError:
pass
def test_savepoint_rollbacks(self):
self.save_points(False)
#verify that everything was stored
users = User.objects.filter(email="inception")
self.assertEquals(len(users), 1)
#savepoint was rolled back so we should have original values
self.assertEquals(users[0].stripe_id, '')
self.assertEquals(users[0].name, 'jj')
#this save point was rolled back because of DatabaseError
limbo = User.objects.filter(email="illbehere@forever")
self.assertEquals(len(limbo),0)
def test_savepoint_commit(self):
self.save_points(True)
#verify that everything was stored
users = User.objects.filter(email="inception")
self.assertEquals(len(users), 1)
#savepoint was committed
self.assertEquals(users[0].stripe_id, '4')
self.assertEquals(users[0].name, 'starting down the rabbit hole')
#save point was committed by exiting the context_manager without an exception
limbo = User.objects.filter(email="illbehere@forever")
self.assertEquals(len(limbo),1)
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