From 511a6fe7f0e88bf85c8d1eaa9d2d6be13cb50437 Mon Sep 17 00:00:00 2001
From: asno-odoo <108650753+asno-odoo@users.noreply.github.com>
Date: Thu, 14 Dec 2023 16:55:13 +0100
Subject: [PATCH] [IMP] orm : add info about boolean default

When a default value for boolean is set as False, the values of
new column for existing records is set to NULL. In python, FALSE
and NULL might mean same thing in certain contexts but its not the
case for Sql(we allow to add sql constraints).
---
 content/developer/tutorials/getting_started/04_basicmodel.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/content/developer/tutorials/getting_started/04_basicmodel.rst b/content/developer/tutorials/getting_started/04_basicmodel.rst
index 27200d49b..8cc936abe 100644
--- a/content/developer/tutorials/getting_started/04_basicmodel.rst
+++ b/content/developer/tutorials/getting_started/04_basicmodel.rst
@@ -249,6 +249,9 @@ Some attributes are available on all fields, here are the most common ones:
 :attr:`~odoo.fields.Field.required` (``bool``, default: ``False``)
     If ``True``, the field can not be empty. It must either have a default
     value or always be given a value when creating a record.
+..note::
+   For existing records, a boolean field defaulting to False signifies a null boolean state.
+   So sql constraints needs to use `is not True` instead of `is False`.
 :attr:`~odoo.fields.Field.help` (``str``, default: ``''``)
     Provides long-form help tooltip for users in the UI.
 :attr:`~odoo.fields.Field.index` (``bool``, default: ``False``)