def get_create_key(self, scene_config):
create_key = md5('{}:{}'.format(
self.user.id,
scene_config.id
if scene_config.id else md5(scene_config.json_config),
))
return create_key
def _generate_cache_key(view, queryset):
view_name = view.__class__.__name__
try:
key_str = queryset.query.__str__()
except EmptyResultSet:
key_str = 'EmptyResultSet'
query_data_fields = getattr(view, 'query_data_fields', [])
query_data_fields.sort()
key_str = '%s:%s' % (key_str, md5(json.dumps(query_data_fields)))
cache_key_prefix = view.get_cache_key_prefix()
if cache_key_prefix is not None:
key_str = '%s:%s' % (cache_key_prefix, key_str)
return md5('%s:%s' % (view_name, key_str))
def _exe_key(func, args, kwargs):
exe_key = md5('{func}(*{args}, **{kwargs})'.format(
func=pickle.dumps(func),
args=pickle.dumps(args),
kwargs=pickle.dumps(kwargs),
))
return exe_key
def get_url_with_version(url):
app_name = url.split('/')[2]
v_dir = settings.STATIC_V_DIRS[app_name]
file_path = os.path.join(v_dir, url.lstrip('/'))
if os.path.exists(file_path):
modified_time = os.path.getmtime(file_path)
modified_time = md5(str(modified_time))
return '%s?%s' % (url, modified_time)
return url
def sync_openid(openid):
if not openid:
return None
if not WeUser.objects.filter(openid=openid).exists():
with transaction.atomic():
user = User.objects.create(username=openid)
WeUser.objects.create(
user=user,
openid=openid,
openid_key=md5(openid),
)
def _generate_cache_key(view, queryset):
view_name = view.__class__.__name__
try:
key_str = queryset.query.__str__()
except EmptyResultSet as e:
# 无查询的空对象
key_str = 'EmptyResultSet'
cache_key_prefix = view.get_cache_key_prefix()
if cache_key_prefix is not None:
key_str = '%s:%s' % (cache_key_prefix, key_str)
return md5('%s:%s' % (view_name, key_str))
def __new__(cls, obj, root_model):
# 序列化数据对象模型类
p_model = pickle.dumps(obj._meta.model)
# 根据模型类和主键生成资源唯一标识
resource_key = md5('%s:%s' % (p_model, obj.pk))
# 资源池已有资源直接返回不再新建
if resource_key in cls.p_key_pool:
p_key = cls.p_key_pool[resource_key]
resource = cls.resource_pool[p_key]
else:
resource = super(ModelResource, cls).__new__(cls, obj, root_model)
# 新建的资源加入资源池和资源表
p_key = str(cls.p_key_counter)
cls.p_key_counter += 1
cls.p_key_pool[resource_key] = p_key
cls.resource_pool[p_key] = resource
cls.model_resources.setdefault(p_model, []).append(resource)
# 预设置资源的模型和唯一标识
resource.p_model = p_model
resource.p_key = p_key
# 预设置资源为未初始化
resource._inited = False
return resource
def get_version_key(cls, name):
return md5('%s:version' % name)
