1. Refactoring form objects and database objects to use inheritance and abstract base class for consistency and reduced redundancy.\n2. Contact us page button links updated to resolve error of missing link causing page refresh instead of expected functionality.

business_objects/db_base.py

@@ -0,0 +1,73 @@
+"""
+Project:    PARTS Website
+Author:     Edward Middleton-Smith
+            Precision And Research Technology Systems Limited
+
+Technology: Business Objects
+Feature:    Database Base Business Objects
+
+Description:
+Abstract business object for database objects
+"""
+
+# internal
+# from helpers.DEPRECATED.helper_abc import Interface_ABC
+from extensions import db
+import lib.argument_validation as av
+# external
+from typing import ClassVar
+from abc import abstractmethod, ABCMeta
+from pydantic import BaseModel
+from sqlalchemy.ext.declarative import DeclarativeMeta
+# from flask_sqlalchemy import SQLAlchemy
+
+
+class Get_Many_Parameters_Base(BaseModel, metaclass=ABCMeta):
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+    @classmethod
+    @abstractmethod
+    def get_default(cls):
+        pass
+    @abstractmethod
+    def to_json(self):
+        pass
+    @classmethod
+    @abstractmethod
+    def from_json(cls, json):
+        pass
+    """
+    @classmethod
+    @abstractmethod
+    def from_form(cls, form):
+        pass
+    """
+
+
+# db = SQLAlchemy()
+# Base = declarative_base()
+class SQLAlchemy_ABCMeta(db.Model.__class__, ABCMeta):
+    pass
+
+class SQLAlchemy_ABC(db.Model, metaclass=SQLAlchemy_ABCMeta):
+    __abstract__ = True
+    # id = db.Column(db.Integer, primary_key=True)
+    def __init__(self):
+        pass
+    def __repr__(self):
+        pass
+    def to_json(self):
+        pass
+    @classmethod
+    def from_json(cls, json):
+        pass
+    def to_json_option(self):
+        pass
+    def to_temporary_record(self):
+        pass
+    def to_object_with_missing_attributes(self, excluded_attributes):
+        return {
+            column.name: getattr(self, column.name) 
+            for column in self.__table__.columns
+            if column.name not in excluded_attributes
+        }