def delete_model(self, request, obj):
"""在管理后台删除一条数据时调用"""
super().delete_model(request, obj)
print('delete_model: %s ' % obj)
# 通过celery异步生成静态的首页
# generate_static_index_page.delay()
cache.delete('index_page_data')
def save_model(self, request, obj, form, change):
"""在管理后台新增或修改了模型数据后调用"""
super().save_model(request, obj, form, change)
print('save_model: %s ' % obj)
# 通过celery异步生成静态的首页
# generate_static_index_page.delay()
cache.delete('index_page_data')
def test_delete_return_value_type_before31(self, cache: RedisCache):
"""delete() returns a int before django version 3.1"""
cache.set("a", 1)
res = cache.delete("a")
assert isinstance(res, int)
assert res == 1
res = cache.delete("b")
assert isinstance(res, int)
assert res == 0
def test_delete_return_value_type_new31(self, cache: RedisCache):
"""delete() returns a boolean instead of int since django version 3.1"""
cache.set("a", 1)
res = cache.delete("a")
assert isinstance(res, bool)
assert res is True
res = cache.delete("b")
assert isinstance(res, bool)
assert res is False
def test_delete(self, cache: RedisCache):
cache.set_many({"a": 1, "b": 2, "c": 3})
res = cache.delete("a")
assert bool(res) is True
res = cache.get_many(["a", "b", "c"])
assert res == {"b": 2, "c": 3}
res = cache.delete("a")
assert bool(res) is False
def test_setnx(self, cache: RedisCache):
# we should ensure there is no test_key_nx in redis
cache.delete("test_key_nx")
res = cache.get("test_key_nx")
assert res is None
res = cache.set("test_key_nx", 1, nx=True)
assert bool(res) is True
# test that second set will have
res = cache.set("test_key_nx", 2, nx=True)
assert res is False
res = cache.get("test_key_nx")
assert res == 1
cache.delete("test_key_nx")
res = cache.get("test_key_nx")
assert res is None
def test_setnx_timeout(self, cache: RedisCache):
# test that timeout still works for nx=True
res = cache.set("test_key_nx", 1, timeout=2, nx=True)
assert res is True
time.sleep(3)
res = cache.get("test_key_nx")
assert res is None
# test that timeout will not affect key, if it was there
cache.set("test_key_nx", 1)
res = cache.set("test_key_nx", 2, timeout=2, nx=True)
assert res is False
time.sleep(3)
res = cache.get("test_key_nx")
assert res == 1
cache.delete("test_key_nx")
res = cache.get("test_key_nx")
assert res is None
def test_incr_ignore_check(self, cache: RedisCache):
if isinstance(cache.client, ShardClient):
pytest.skip(
"ShardClient doesn't support argument ignore_key_check to incr"
)
if isinstance(cache.client, herd.HerdClient):
pytest.skip("HerdClient doesn't support incr")
# key exists check will be skipped and the value will be incremented by
# '1' which is the default delta
cache.incr("num", ignore_key_check=True)
res = cache.get("num")
assert res == 1
cache.delete("num")
# since key doesnt exist it is set to the delta value, 10 in this case
cache.incr("num", 10, ignore_key_check=True)
res = cache.get("num")
assert res == 10
cache.delete("num")
# following are just regression checks to make sure it still works as
# expected with incr max 64 bit signed int
cache.set("num", 9223372036854775807)
cache.incr("num", ignore_key_check=True)
res = cache.get("num")
assert res == 9223372036854775808
cache.incr("num", 2, ignore_key_check=True)
res = cache.get("num")
assert res == 9223372036854775810
cache.set("num", 3)
cache.incr("num", 2, ignore_key_check=True)
res = cache.get("num")
assert res == 5