round 3

models/base.py

@@ -1,18 +1,13 @@
+# python
 from dataclasses import dataclass, field
 import uuid
 import time
 
-@dataclass
+@dataclass(kw_only=True)
 class BaseModel:
-    id: str = field(init=False)
-    created_at: float = field(init=False)
-    updated_at: float = field(init=False)
-
-    def __post_init__(self):
-        self.id = str(uuid.uuid4())
-        now = time.time()
-        self.created_at = now
-        self.updated_at = now
+    id: str = field(default_factory=lambda: str(uuid.uuid4()))
+    created_at: float = field(default_factory=time.time)
+    updated_at: float = field(default_factory=time.time)
 
     def touch(self):
         self.updated_at = time.time()
@@ -23,10 +18,3 @@ class BaseModel:
             'created_at': self.created_at,
             'updated_at': self.updated_at
         }
-
-    @classmethod
-    def _apply_base_fields(cls, obj, d: dict):
-        obj.id = d.get('id', obj.id)
-        obj.created_at = d.get('created_at', obj.created_at)
-        obj.updated_at = d.get('updated_at', obj.updated_at)
-        return obj