Feat: Multiplayer sessions added using CRUD database.

forms/base.py

@@ -0,0 +1,70 @@
+"""
+Project:    PARTS Website
+Author:     Edward Middleton-Smith
+            Precision And Research Technology Systems Limited
+
+Technology: Backend
+Feature:    Form Base and Meta Classes - data input
+
+Description:
+Defines Flask-WTF base forms for handling user input.
+"""
+
+# internal
+from helpers.helper_app import Helper_App
+# external
+from flask_wtf import FlaskForm
+from abc import ABCMeta, abstractmethod
+from wtforms import SelectField, BooleanField, SubmitField
+from wtforms.validators import InputRequired, NumberRange, Regexp, DataRequired, Optional
+
+
+class Form_Base_Meta(type(FlaskForm), ABCMeta):
+    pass
+
+
+class Form_Base(FlaskForm, metaclass=Form_Base_Meta):
+    @classmethod
+    @abstractmethod
+    def from_json(cls, json):
+        Helper_App.console_log(f'Error: Parent classes of {cls.__qualname__} must define cls.from_json')
+
+    @classmethod
+    def get_default(cls):
+        return cls()
+    @classmethod
+    def get_select_option_blank(cls, is_valid = True):
+        value = cls.get_select_valid_option_default_value() if is_valid else cls.get_select_invalid_option_default_value()
+        return (value, 'Select')
+    @classmethod
+    def get_select_option_all(cls):
+        return (cls.get_select_valid_option_default_value(), 'All')
+    
+    @staticmethod
+    def get_select_valid_option_default_value():
+        return '0'
+    @staticmethod
+    def get_select_invalid_option_default_value():
+        return ''
+    
+    def __repr__(self):
+        fields = ', '.join(
+            f"{name}={field.data}" for name, field in self._fields.items()
+        )
+        return f"{self.__class__.__name__}({fields})"
+
+'''
+class Filters_Stored_Procedure_Base(Form_Base):
+    """
+    @abstractmethod
+    def __repr__(self):
+        pass
+    @classmethod
+    @abstractmethod
+    def from_json(cls, json):
+        pass
+    """
+    @abstractmethod
+    def to_json(self):
+        pass
+'''