Adapt test module

base_time_window/models/__init__.py

@@ -1,2 +1,2 @@
-from . import base_time_weekday
-from . import base_time_window
+from . import time_weekday
+from . import time_window_mixin

base_time_window/readme/DESCRIPTION.rst

@@ -1 +1,2 @@
-This module provides base classes to manage time windows.
+This module provides base classes and models to manage time windows through
+`time.window.mixin`.

base_time_window/readme/USAGE.rst

@@ -0,0 +1,30 @@
+Example implementation for the mixin can be found in module `test_base_time_window`.
+
+As a time window will always be linked to a related model thourgh a M2o relation,
+when defining the new model inheriting the mixin, one should pay attention to the
+following points in order to have the overlapping check work properly:
+
+- Define class property `_overlap_check_field`: This must state the M2o field to
+  use for the to check of overlapping time window records linked to a specific
+  record of the related model.
+
+- Add the M2o field to the related model in the `api.constrains`:
+
+
+For example:
+
+.. code-block:: python
+
+    class PartnerTimeWindow(models.Model):
+        _name = 'partner.time.window'
+        _inherit = 'time.window.mixin'
+
+        partner_id = fields.Many2one(
+            res.partner', required=True, index=True, ondelete='cascade'
+        )
+
+        _overlap_check_field = 'partner_id'
+
+        @api.constrains('partner_id')
+        def check_window_no_overlaps(self):
+            return super().check_window_no_overlaps()