Feat(SQL, UI): Redesign database with much more detailed command response quality analysis and created successfully loading Dog Command Links page

forms/dog/dog_command_link.py

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+"""
+Project:    PARTS Website
+Author:     Edward Middleton-Smith
+            Precision And Research Technology Systems Limited
+
+Technology: Backend
+Feature:    Contact Us Form
+
+Description:
+Defines Flask-WTF form for handling user input on Contact Us page.
+"""
+
+# IMPORTS
+# internal
+from dog_training.business_objects.base import Base
+from dog_training.business_objects.dog.command import Command
+from dog_training.business_objects.dog.dog import Dog
+from dog_training.business_objects.dog.obedience_level import Obedience_Level
+# from dog_training.models.model_view_store import Model_View_Store # circular
+# from dog_training.models.model_view_base import Model_View_Base
+from dog_training.forms.base import Form_Base
+import dog_training.lib.argument_validation as av
+# external
+from flask import Flask, render_template, request, flash, redirect, url_for, current_app
+from flask_wtf import FlaskForm
+from wtforms import SelectField, BooleanField, SubmitField
+from wtforms.validators import DataRequired, Email, ValidationError
+import markupsafe
+from flask_wtf.recaptcha import RecaptchaField
+from abc import ABCMeta, abstractmethod
+import json
+
+class Filters_Dog_Command_Link(Form_Base):
+    id_dog = SelectField(
+          'Dog'
+        , choices = [Form_Base.get_select_option_all()]
+        , default = Form_Base.get_select_option_default_value()
+    )
+    id_command = SelectField(
+          'Command'
+        , choices = [Form_Base.get_select_option_all()]
+        , default = Form_Base.get_select_option_default_value()
+    )
+    active_only = BooleanField(
+          'Active'
+        , default = True
+    )
+
+    @classmethod
+    def from_json(cls, json):
+        filters = cls()
+        filters.id_dog.choices = [(json[Dog.ATTR_ID_DOG], json[Dog.ATTR_ID_DOG])]
+        filters.id_dog.data = json[Dog.ATTR_ID_DOG]
+        filters.id_command.choices = [(json[Command.ATTR_ID_COMMAND], json[Command.ATTR_ID_COMMAND])]
+        filters.id_command.data = json[Command.ATTR_ID_COMMAND]
+        filters.active_only.data = av.input_bool(json[Base.FLAG_ACTIVE], Base.FLAG_ACTIVE, f'{cls.__name__}.from_json')
+        return filters
+
+    def to_json(self):
+        return {
+              Dog.FLAG_DOG: self.id_dog.data
+            , Command.FLAG_COMMAND: self.id_command.data
+            , Base.FLAG_ACTIVE: self.active_only.data
+        }