[IMP] base_comment_template: Refactor code and convert to Many2Many

base_comment_template/models/res_partner.py

@@ -1,7 +1,8 @@
 # Copyright 2020 NextERP Romania SRL
+# Copyright 2021 Tecnativa - Víctor Martínez
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-from odoo import fields, models
+from odoo import api, fields, models
 
 
 class ResPartner(models.Model):
@@ -9,6 +10,14 @@ class ResPartner(models.Model):
 
     base_comment_template_ids = fields.Many2many(
         comodel_name="base.comment.template",
+        relation="base_comment_template_res_partner_rel",
+        column1="base_comment_template_id",
+        column2="res_partner_id",
         string="Comment Templates",
         help="Specific partner comments that can be included in reports",
     )
+
+    @api.model
+    def _commercial_fields(self):
+        """Add comment templates to commercial fields"""
+        return super()._commercial_fields() + ["base_comment_template_ids"]