import basehash class Hasher: """ 對數據庫ID進行散列化計算 """ base36 = basehash.base62(11) @classmethod def from_model(cls, obj): if obj.pk is None: return None return cls.make_hash(obj.pk) @classmethod def make_hash(cls, object_pk): return cls.base36.hash('%(object_pk)d' % { 'object_pk': object_pk }) @classmethod def to_object_pk(cls, obj_hash): unhashed = '%d' % cls.base36.unhash(obj_hash) object_pk = int(unhashed) return object_pk
class BaseModel(models.Model): """自定義Model基類""" create_at = models.DateTimeField(auto_now_add=True, verbose_name='創建時間') update_at = models.DateTimeField(auto_now=True, verbose_name='更新時間') delete_at = models.DateTimeField(null=True, blank=True, default=None, verbose_name='刪除時間') class Meta: abstract = True @property def hash(self): return Hasher.from_model(self)