add from_data() classmethod to Model

app/db.py

@@ -189,6 +189,13 @@ class Model:
             raise AttributeError(f"No column '{key}'")
 
 
+    @classmethod
+    def from_data(cls, data):
+        instance = cls(cls.table)
+        instance._data = dict(data)
+        return instance
+
+
     @classmethod
     def find(cls, condition):
         row = db.QueryBuilder(cls.table)\
@@ -196,9 +203,7 @@ class Model:
             .first()
         if not row:
             return None
-        instance = cls(cls.table)
-        instance._data = dict(row)
-        return instance
+        return cls.from_data(row)
 
 
     @classmethod
@@ -207,11 +212,7 @@ class Model:
             .where(condition, operator)\
             .all()
         res = []
-        for row in rows:
-            instance = cls(cls.table)
-            instance._data = dict(row)
-            res.append(instance)
-        return res
+        return [cls.from_data(row) for row in rows]
 
 
     @classmethod
@@ -223,9 +224,7 @@ class Model:
         row = db.insert(cls.table, columns, *values.values())
 
         if row:
-            instance = cls(cls.table)
-            instance._data = row
-            return instance
+            return cls.from_data(row)
         return None
 
 
@@ -243,7 +242,8 @@ class Model:
     def select(cls, sel = "*"):
         qb = db.QueryBuilder(cls.table).select(sel)
         result = qb.all()
-        return result if result else []
+        # return result if result else []
+        return [cls.from_data(data) for data in (result if result else [])]
 
 
     def update(self, data):