def test_invalidation_signal(self):
def set_signal(signal=None, **kwargs):
signal_calls.append(kwargs)
signal_calls = []
cache_invalidated.connect(set_signal, dispatch_uid=1, weak=False)
invalidate_all()
invalidate_model(Post)
c = Category.objects.create(title='Hey')
self.assertEqual(signal_calls, [
{
'sender': None,
'obj_dict': None
},
{
'sender': Post,
'obj_dict': None
},
{
'sender': Category,
'obj_dict': {
'id': c.pk,
'title': 'Hey'
}
},
])
def ready(self):
"""Populate settings.CONSTANCE_CONFIG with collected config from each apps"""
final_config = OrderedDict()
fieldsets = {}
for app in get_his_apps():
if hasattr(app, 'config'):
config_keys = []
for key, value in app.config.items():
full_key = '%s_%s' % (app.label, key)
final_config[full_key] = value
config_keys.append(full_key)
fieldsets[app.label] = config_keys
settings.CONSTANCE_CONFIG.update(final_config)
settings.CONSTANCE_CONFIG_FIELDSETS.update(fieldsets)
cache_invalidated.connect(clear_cache)
def test_invalidation_signal(self):
def set_signal(signal=None, **kwargs):
signal_calls.append(kwargs)
signal_calls = []
cache_invalidated.connect(set_signal, dispatch_uid=1, weak=False)
invalidate_all()
invalidate_model(Post)
c = Category.objects.create(title='Hey')
self.assertEqual(signal_calls, [
{'sender': None, 'obj_dict': None},
{'sender': Post, 'obj_dict': None},
{'sender': Category, 'obj_dict': {'id': c.pk, 'title': 'Hey'}},
])
def ready(self):
cache_read.connect(stats_collector)
cache_invalidated.connect(stats_invalidate)
instance.remove_stale_data(instance.content_types.all())
m2m_changed.connect(handle_cf_removed_obj_types, sender=CustomField.content_types.through)
post_save.connect(handle_cf_renamed, sender=CustomField)
pre_delete.connect(handle_cf_deleted, sender=CustomField)
#
# Caching
#
cacheops_cache_hit = Counter('cacheops_cache_hit', 'Number of cache hits')
cacheops_cache_miss = Counter('cacheops_cache_miss', 'Number of cache misses')
cacheops_cache_invalidated = Counter('cacheops_cache_invalidated', 'Number of cache invalidations')
def cache_read_collector(sender, func, hit, **kwargs):
if hit:
cacheops_cache_hit.inc()
else:
cacheops_cache_miss.inc()
def cache_invalidated_collector(sender, obj_dict, **kwargs):
cacheops_cache_invalidated.inc()
cache_read.connect(cache_read_collector)
cache_invalidated.connect(cache_invalidated_collector)
