[12.0][ADD] attachment_category

attachment_category/models/ir_attachment.py

@@ -0,0 +1,18 @@
+# Copyright 2020 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class IrAttachment(models.Model):
+
+    _inherit = 'ir.attachment'
+
+    category_ids = fields.Many2many(
+        comodel_name="ir.attachment.category",
+        relation="ir_attachment_category_rel",
+        column1="attachment_id",
+        column2="category_id",
+        ondelete="restrict",
+        index=True,
+    )