Fully functional opening transactions

api/app/account/schemas.py

@@ -4,7 +4,7 @@ from typing import Optional
 from uuid import UUID, uuid4
 
 from sqlmodel import Field, SQLModel
-from pydantic import Field as PydField
+from pydantic import Field as PydField, BaseModel
 from pydantic.json_schema import SkipJsonSchema
 
 from account.enums import Asset, Liability, CategoryFamily
@@ -67,3 +67,10 @@ class CategoryCreate(CategoryWrite):
 
 class CategoryUpdate(CategoryWrite):
     pass
+
+class OpeningTransaction(BaseModel):
+    opening_date: date = Field()
+    opening_balance: MonetaryAmount = Field(default=0)
+
+class OpeningTransactionUpdate(OpeningTransaction):
+    pass