add new module

inventory_groups/models/groups.py

@@ -0,0 +1,21 @@
+from odoo import _, fields, models, api
+
+
+class Inventorygroups(models.Model):
+    _name = "stock.groups"
+    _parent_name = "parent_id"
+    _rec_name = 'complete_name'
+
+    name = fields.Char(required=True)
+    parent_id = fields.Many2one('stock.groups', "Parent Group")
+    complete_name = fields.Char(
+        'Complete Name', compute='_compute_complete__group_name',
+        store=True)
+
+    @api.depends('name', 'parent_id.complete_name')
+    def _compute_complete__group_name(self):
+        for category in self:
+            if category.parent_id:
+                category.complete_name = '%s / %s' % (category.parent_id.complete_name, category.name)
+            else:
+                category.complete_name = category.name