def handle(self, *apps, **options):
get_module_and_target = lambda x : x.rsplit('.', 1)
def load_module_and_target(mod, target):
module = import_module(mod)
target, pk = target.split(':')
model = getattr(module, target)
return model, pk
models = [load_module_and_target(module, target) for module, target in (get_module_and_target(app) for app in apps)]
number = int(options['number'])
comment = hashlib.md5(str(datetime.datetime.now())).hexdigest()
print "About to create %d revisions of %d models." % (number, len(models))
print "to remove these revisions, use Revision.objects.filter(comment='%s').delete()" % comment
[revision.register(model) for model, creation in models]
for i in range(number):
for model, pk in models:
revision.start()
try:
revision.comment = comment
model = model.objects.get(pk=pk)
model.save()
sys.stdout.write('.')
except:
revision.invalidate()
raise
finally:
revision.end()
sys.stdout.flush()
print "finished."
def edit_object(object, field, format='rest'):
revision.start()
ext = {'rest':'rst','mdown':'md','txtile':'txt','html':'html','plain':'txt'}
filename = tempfile.mktemp('.' + ext[format])
original = getattr(object, field)
open(filename,'w').write(original)
mtime = os.path.getmtime(filename)
p = subprocess.Popen((EDITOR, filename), stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr)
while p.poll() is None:
time.sleep(.2)
ntime = os.path.getmtime(filename)
if ntime > mtime:
mtime = ntime
text = open(filename).read()
if text == original:
continue
setattr(object, field, text)
object.save()
text = open(filename).read()
if text == original:
return False
setattr(object, field, text)
object.save()
revision.end()
def test_get_unique_for_object_returns_appropriate_versions(self):
user = User.objects.create(
username='******' % random.randint(2, 100),
email='*****@*****.**',
)
# make sure the random number is evenly divisible
random_number_of_versions = abs(random.randint(2, 50) & (~0<<1))
revision.register(User)
user = User.objects.get(email='*****@*****.**')
for i in range(random_number_of_versions/2):
try:
revision.start()
user.username = '******' % i
user.save()
except:
revision.invalidate()
finally:
revision.end()
for i in range(random_number_of_versions/2, 0, -1):
try:
revision.start()
user.username = '******' % i
user.save()
except:
revision.invalidate()
finally:
revision.end()
versions = Version.objects.get_unique_for_object(user)
self.assertEqual(len(versions), random_number_of_versions)
def test_get_for_date_returns_version_if_one_is_available(self):
revision.register(User)
try:
revision.start()
user = User.objects.create(
username='******' % random.randint(1, 100),
)
except:
revision.invalidate()
finally:
revision.end()
now = datetime.datetime.now()
version = Version.objects.get_for_date(user, now)
self.assertTrue(version.revision.date_created <= now)
def test_get_for_object_returns_appropriate_versions(self):
user = User.objects.create(
username='******' % random.randint(1, 100),
email='*****@*****.**',
)
random_number_of_versions = random.randint(1, 100)
revision.register(User)
for i in range(random_number_of_versions):
try:
revision.start()
user.username = '******' % i
user.save()
except:
revision.invalidate()
finally:
revision.end()
versions = Version.objects.get_for_object(user)
self.assertEqual(len(versions), random_number_of_versions)
def pre_save(self, model_instance, add):
try:
obj = model_instance._indirect_references.get(self, None)
except AttributeError:
obj = None
if not obj: return None
# Creates a version for current state
revision.start()
obj.save()
revision.end()
# Gets the latest version (the current one was created above)
version = Version.objects.filter(
content_type=self.indirect_content_type,
object_id=obj.pk,
).latest('pk')
# Returns version's id
return version.pk
def setUp(self):
"""Sets up a versioned site model to test."""
revision.register(Site)
try:
revision.start()
site = Site.objects.create(name="site", domain="www.site-rev-1.com")
except:
revision.invalidate()
finally:
revision.end()
try:
revision.start()
site.domain = "www.site-rev-2.com"
site.save()
except:
revision.invalidate()
finally:
revision.end()
self.site = site
def test_get_deleted_object_returns_version_if_one_is_available(self):
revision.register(User)
pk = None
try:
revision.start()
user = User.objects.create(
username='******' % random.randint(1, 100),
)
pk = user.pk
except:
revision.invalidate()
finally:
revision.end()
try:
revision.start()
user.delete()
except:
revision.invalidate()
finally:
revision.end()
version = Version.objects.get_deleted_object(User, pk)
self.assertEqual(version.object_version.object.pk, pk)
def edit_object(model, object):
revision.start()
filename = tempfile.mktemp('.rst')
original = object_to_text(model, object)
open(filename, 'w').write(original.encode('utf-8'))
mtime = os.path.getmtime(filename)
p = subprocess.Popen((EDITOR, filename), stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr)
while p.poll() is None:
time.sleep(.2)
ntime = os.path.getmtime(filename)
if ntime > mtime:
mtime = ntime
text = open(filename).read().decode('utf-8')
if text == original:
continue
original = text
dct = object_from_text(model, text)
if not dct:
open('.blogit.bad', 'w').write(text.encode('utf-8'))
print 'failed to parse'
else:
save_object(object, dct)
newtext = object_to_text(model, object)
open(filename, 'w').write(newtext.encode('utf-8'))
text = open(filename).read()
if text == original:
return False
dct = object_from_text(model, text)
if not dct:
open('.blogit.bad', 'w').write(text.encode('utf-8'))
print 'failed to parse. saved text to ".blogit.bad"'
return False
else:
save_object(object, dct)
revision.end()
def test_get_deleted_returns_appropriate_list_of_deleted_objects_for_model(self):
revision.register(User)
random_number_of_users = random.randint(1, 100)
for i in range(random_number_of_users):
user = None
try:
revision.start()
user = User.objects.create(
username='******' % i
)
except:
revision.invalidate()
finally:
revision.end()
try:
revision.start()
User.objects.all().delete()
except:
revision.invalidate()
finally:
revision.end()
deleted = Version.objects.get_deleted(User)
self.assertEqual(len(deleted), random_number_of_users)
def process_response(self, request, response):
"""Closes the revision."""
while revision.is_active():
revision.end()
return response
def tearDown(self):
while revision.is_active():
revision.end()
def process_response(self, request, response):
"""Closes the revision."""
if revision.is_active():
revision.end()
return response