def test_cache_all_samples(self):
"""Test the 'ALL_SAMPLES' list caches correctly."""
Sample.objects.create(name='mysample1', percent='100.0')
# cache is initially empty
cached_samples = cache.get(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')))
self.assertIsNone(cached_samples)
# calling waffejs view causes cache to be set
self.client.get(reverse('wafflejs'))
cached_samples = cache.get(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')))
self.assertIsNotNone(cached_samples)
self.assertSequenceEqual(['mysample1'], cached_samples)
# creating a new flag invalidates the cache
Sample.objects.create(name='mysample2', percent='100.0')
cached_samples = cache.get(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')))
self.assertIsNone(cached_samples)
# calling waffejs view causes cache to be set for more than 1 switch
self.client.get(reverse('wafflejs'))
cached_samples = cache.get(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')))
self.assertIsNotNone(cached_samples)
self.assertSequenceEqual(['mysample1', 'mysample2'], cached_samples)
def _generate_waffle_js(request):
flags = cache.get(keyfmt(FLAGS_ALL_CACHE_KEY))
if flags is None:
flags = Flag.objects.values_list('name', flat=True)
cache.add(keyfmt(FLAGS_ALL_CACHE_KEY), flags)
flag_values = [(f, flag_is_active(request, f)) for f in flags]
switches = cache.get(keyfmt(SWITCHES_ALL_CACHE_KEY))
if switches is None:
switches = Switch.objects.values_list('name', 'active')
cache.add(keyfmt(SWITCHES_ALL_CACHE_KEY), switches)
samples = cache.get(keyfmt(SAMPLES_ALL_CACHE_KEY))
if samples is None:
samples = Sample.objects.values_list('name', flat=True)
cache.add(keyfmt(SAMPLES_ALL_CACHE_KEY), samples)
sample_values = [(s, sample_is_active(s)) for s in samples]
flag_default = getattr(settings, 'WAFFLE_FLAG_DEFAULT', False)
switch_default = getattr(settings, 'WAFFLE_SWITCH_DEFAULT', False)
sample_default = getattr(settings, 'WAFFLE_SAMPLE_DEFAULT', False)
return loader.render_to_string('waffle/waffle.js',
{
'flags': flag_values,
'switches': switches,
'samples': sample_values,
'flag_default': flag_default,
'switch_default': switch_default,
'sample_default': sample_default,
})
def test_cache_all_flags(self):
"""Test the 'ALL_FLAGS' list caches correctly."""
Flag.objects.create(name='myflag1', everyone=True)
# cache is initially empty
cached_flags = cache.get(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')))
self.assertIsNone(cached_flags)
# calling waffejs view causes cache to be set
self.client.get(reverse('wafflejs'))
cached_flags = cache.get(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')))
self.assertIsNotNone(cached_flags)
self.assertSequenceEqual(['myflag1'], cached_flags)
# creating a new flag invalidates the cache
Flag.objects.create(name='myflag2', everyone=True)
cached_flags = cache.get(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')))
self.assertIsNone(cached_flags)
# calling waffejs view causes cache to be set for more than 2 flags
self.client.get(reverse('wafflejs'))
cached_flags = cache.get(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')))
self.assertIsNotNone(cached_flags)
self.assertSequenceEqual(['myflag1', 'myflag2'], cached_flags)
def test_cache_all_switches(self):
"""Test the 'ALL_SWITCHES' list caches correctly."""
Switch.objects.create(name='myswitch1', active=True)
# cache is initially empty
cached_switches = cache.get(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')))
self.assertIsNone(cached_switches)
# calling waffejs view causes cache to be set
self.client.get(reverse('wafflejs'))
cached_switches = cache.get(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')))
self.assertIsNotNone(cached_switches)
self.assertSequenceEqual([('myswitch1', True)], cached_switches)
# creating a new flag invalidates the cache
Switch.objects.create(name='myswitch2', active=True)
cached_switches = cache.get(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')))
self.assertIsNone(cached_switches)
# calling waffejs view causes cache to be set for more than 1 switch
self.client.get(reverse('wafflejs'))
cached_switches = cache.get(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')))
self.assertIsNotNone(cached_switches)
self.assertSequenceEqual([('myswitch1', True), ('myswitch2', True)], cached_switches)
def _flag_is_active_for_user(flag, user=None, **kwargs):
if flag.staff and user.is_staff:
return True
if flag.superusers and user.is_superuser:
return True
flag_users = cache.get(keyfmt(get_setting('FLAG_USERS_CACHE_KEY'),
flag.name))
if flag_users is None:
flag_users = flag.users.all()
cache_flag(instance=flag)
if user in flag_users:
return True
flag_groups = cache.get(keyfmt(get_setting('FLAG_GROUPS_CACHE_KEY'),
flag.name))
if flag_groups is None:
flag_groups = flag.groups.all()
cache_flag(instance=flag)
user_groups = user.groups.all()
for group in flag_groups:
if group in user_groups:
return True
def _generate_waffle_js(request):
flags = cache.get(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')))
if flags is None:
flags = Flag.objects.values_list('name', flat=True)
cache.set(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')), flags)
flag_values = [(f, flag_is_active(request, f)) for f in flags]
switches = cache.get(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')))
if switches is None:
switches = Switch.objects.values_list('name', 'active')
cache.set(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')), switches)
samples = cache.get(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')))
if samples is None:
samples = Sample.objects.values_list('name', flat=True)
cache.set(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')), samples)
sample_values = [(s, sample_is_active(s)) for s in samples]
return loader.render_to_string('waffle/waffle.js', {
'flags': flag_values,
'switches': switches,
'samples': sample_values,
'flag_default': get_setting('FLAG_DEFAULT'),
'switch_default': get_setting('SWITCH_DEFAULT'),
'sample_default': get_setting('SAMPLE_DEFAULT'),
})
def _generate_waffle_js(request):
flags = cache.get(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')))
if flags is None:
flags = Flag.objects.values_list('name', flat=True)
cache.add(keyfmt(get_setting('ALL_FLAGS_CACHE_KEY')), flags)
flag_values = [(f, flag_is_active(request, f)) for f in flags]
switches = cache.get(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')))
if switches is None:
switches = Switch.objects.values_list('name', 'active')
cache.add(keyfmt(get_setting('ALL_SWITCHES_CACHE_KEY')), switches)
samples = cache.get(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')))
if samples is None:
samples = Sample.objects.values_list('name', flat=True)
cache.add(keyfmt(get_setting('ALL_SAMPLES_CACHE_KEY')), samples)
sample_values = [(s, sample_is_active(s)) for s in samples]
return loader.render_to_string(
'waffle/waffle.js', {
'flags': flag_values,
'switches': switches,
'samples': sample_values,
'flag_default': get_setting('FLAG_DEFAULT'),
'switch_default': get_setting('SWITCH_DEFAULT'),
'sample_default': get_setting('SAMPLE_DEFAULT'),
})
def _get_flag(flag_name):
flag = cache.get(keyfmt(get_setting('FLAG_CACHE_KEY'), flag_name))
if flag is None:
try:
flag = Flag.objects.get(name=flag_name)
cache_flag(instance=flag)
except Flag.DoesNotExist:
flag = None
return flag
def sample_is_active(sample_name):
sample = cache.get(keyfmt(SAMPLE_CACHE_KEY, sample_name))
if sample is None:
try:
sample = Sample.objects.get(name=sample_name)
cache_sample(instance=sample)
except Sample.DoesNotExist:
return getattr(settings, 'WAFFLE_SAMPLE_DEFAULT', False)
return Decimal(str(random.uniform(0, 100))) <= sample.percent
def switch_is_active(switch_name):
switch = cache.get(keyfmt(SWITCH_CACHE_KEY, switch_name))
if switch is None:
try:
switch = Switch.objects.get(name=switch_name)
cache_switch(instance=switch)
except Switch.DoesNotExist:
switch = DoesNotExist()
switch.name = switch_name
cache_switch(instance=switch)
return switch.active
def sample_is_active(sample_name):
from .models import cache_sample, Sample
from .compat import cache
sample = cache.get(keyfmt(get_setting('SAMPLE_CACHE_KEY'), sample_name))
if sample is None:
try:
sample = Sample.objects.get(name=sample_name)
cache_sample(instance=sample)
except Sample.DoesNotExist:
return get_setting('SAMPLE_DEFAULT')
return Decimal(str(random.uniform(0, 100))) <= sample.percent
def switch_is_active(switch_name):
from .models import cache_switch, Switch
from .compat import cache
switch = cache.get(keyfmt(get_setting('SWITCH_CACHE_KEY'), switch_name))
if switch is None:
try:
switch = Switch.objects.get(name=switch_name)
cache_switch(instance=switch)
except Switch.DoesNotExist:
switch = DoesNotExist()
switch.name = switch_name
cache_switch(instance=switch)
return switch.active
def flag_is_active(request, flag_name):
flag = cache.get(keyfmt(FLAG_CACHE_KEY, flag_name))
if flag is None:
try:
flag = Flag.objects.get(name=flag_name)
cache_flag(instance=flag)
except Flag.DoesNotExist:
return getattr(settings, 'WAFFLE_FLAG_DEFAULT', False)
if getattr(settings, 'WAFFLE_OVERRIDE', False):
if flag_name in request.GET:
return request.GET[flag_name] == '1'
if flag.everyone:
return True
elif flag.everyone is False:
return False
if flag.testing: # Testing mode is on.
tc = TEST_COOKIE_NAME % flag_name
if tc in request.GET:
on = request.GET[tc] == '1'
if not hasattr(request, 'waffle_tests'):
request.waffle_tests = {}
request.waffle_tests[flag_name] = on
return on
if tc in request.COOKIES:
return request.COOKIES[tc] == 'True'
user = request.user
if flag.authenticated and user.is_authenticated():
return True
if flag.staff and user.is_staff:
return True
if flag.superusers and user.is_superuser:
return True
if flag.languages:
languages = flag.languages.split(',')
if (hasattr(request, 'LANGUAGE_CODE') and
request.LANGUAGE_CODE in languages):
return True
flag_users = cache.get(keyfmt(FLAG_USERS_CACHE_KEY, flag.name))
if flag_users is None:
flag_users = flag.users.all()
cache_flag(instance=flag)
if user in flag_users:
return True
flag_groups = cache.get(keyfmt(FLAG_GROUPS_CACHE_KEY, flag.name))
if flag_groups is None:
flag_groups = flag.groups.all()
cache_flag(instance=flag)
user_groups = user.groups.all()
for group in flag_groups:
if group in user_groups:
return True
if flag.percent and flag.percent > 0:
if not hasattr(request, 'waffles'):
request.waffles = {}
elif flag_name in request.waffles:
return request.waffles[flag_name][0]
cookie = COOKIE_NAME % flag_name
if cookie in request.COOKIES:
flag_active = (request.COOKIES[cookie] == 'True')
set_flag(request, flag_name, flag_active, flag.rollout)
return flag_active
if Decimal(str(random.uniform(0, 100))) <= flag.percent:
set_flag(request, flag_name, True, flag.rollout)
return True
set_flag(request, flag_name, False, flag.rollout)
return False
