convert to modern MappedAsDataclass models

src/ttfrog/db/base.py

@@ -2,9 +2,9 @@ import enum
 
 import nanoid
 from nanoid_dictionary import human_alphabet
-from pyramid_sqlalchemy import BaseObject as _BaseObject
 from slugify import slugify
 from sqlalchemy import Column, String
+from sqlalchemy.orm import DeclarativeBase, MappedAsDataclass
 
 
 def genslug():
@@ -19,7 +19,7 @@ class SlugMixin:
         return "-".join([self.slug, slugify(self.name.title().replace(" ", ""), ok="", only_ascii=True, lower=False)])
 
 
-class BaseObject(_BaseObject):
+class BaseObject(MappedAsDataclass, DeclarativeBase):
     """
     Allows for iterating over Model objects' column names and values
     """