def to_python(self, value):
logger.debug('字典字段：反序列化数据(to_python) %s' % value)
if value:
data = literal_eval(value)
else:
data = dict()
if not isinstance(data, dict):
raise TypeError('字典字段：格式非法，反序列化结果不是字典。')
return data
def from_db_value(self, value, expression, connection):
logger.debug('字典字段：反序列化数据(from_db_value) %s' % value)
if value:
data = literal_eval(value)
else:
data = dict()
if not isinstance(data, dict):
raise TypeError('字典字段：格式非法，反序列化结果不是字典。')
return data
def destroy_email_validation_token(self,
token_to_destroy: str,
commit=True):
if token_to_destroy in self.email_validation_tokens:
token_info = self.email_validation_tokens.pop(token_to_destroy)
if commit:
self.save()
logger.debug(
'邮件验证Token销毁：token %s，邮件地址 %s，过期时间 %d' %
(token_to_destroy, token_info['email'], token_info['expire']))
return True
logger.debug('邮件验证Token销毁：token %s 不存在' % token_to_destroy)
return False
def create_email_validation_token(self, commit=True) -> str:
# 生成token，指定token过期时间
token_expire = int(time.time()) + EMAIL_TOKEN_EXPIRE
token = gen_random_char_string(TOKEN_LENGTH)
email = self.user.email
# 存储该token
self.email_validation_tokens[token] = {
'email': email,
'expire': token_expire
}
if commit:
self.save()
logger.debug('邮件验证Token生成：token %s，邮件地址 %s，过期时间 %d' %
(token, email, token_expire))
return token
def avatar_urls(self):
logger.debug('头像urls：开始生成头像urls')
avatar_urls = dotdict()
storage = default_storage # type:Storage
for size in AVATAR_SIZES.keys():
if size in self._avatar:
if getattr(settings, 'USE_OSS', False):
oss_storage = storage # type:AliyunBaseStorage
url = oss_storage.url(self._avatar[size], sign=False)
else:
url = storage.url(self._avatar[size])
else:
url = static('account/default.gif')
avatar_urls[size] = url
logger.debug('头像urls：完成√')
return avatar_urls
def avatar(self):
logger.debug('删除头像：开始删除头像')
storage = default_storage # type:Storage
for name in self._avatar.values():
storage.delete(name)
logger.debug('删除头像：删除 {name}'.format(name=name))
self._avatar = dict()
logger.debug('删除头像：完成√')
def avatar(self, avatar: File):
logger.debug('设定头像：开始设定头像')
if self._avatar:
logger.debug('设定头像：删除旧头像')
del self.avatar
storage = default_storage # type:Storage
logger.debug('设定头像：打开传入头像文件 {file}'.format(file=avatar))
image = Image.open(avatar)
logger.debug('设定头像：生成不同尺寸头像')
thumbs = generate_thumbnails(image,
sizes=AVATAR_SIZES,
target_format=AVATAR_FORMAT,
target_mode=AVATAR_COLOR_MODE)
logger.debug('设定头像：生成完成，尺寸 {sizes}'.format(sizes=list(thumbs.keys())))
for size, io in thumbs.items():
path = storage.save(self.avatar_path + size + '.' + AVATAR_FORMAT,
io)
# 如果启用了OSS，为了提高加载速度，将头像文件权限设置为公共读
if getattr(settings, 'USE_OSS', False):
oss_storage = storage # type:AliyunBaseStorage
from oss2 import OBJECT_ACL_PUBLIC_READ
oss_storage.put_file_acl(path, OBJECT_ACL_PUBLIC_READ)
self._avatar[size] = path
logger.debug('设定头像：完成√')
def get_prep_value(self, value):
logger.debug('字典字段：序列化数据 %s' % value)
return repr(value)