[FIX] fix showing all variant active or inactive

product_variant_usability/models/product.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Copyright 2017 Akretion (http://www.akretion.com).
+# @author Sébastien BEAU <sebastien.beau@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from openerp import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    all_product_variant_ids = fields.One2many(
+        'product.product',
+        'product_tmpl_id',
+        'All Product Variant',
+        domain=['|', ('active', '=', False), ('active', '=', True)])