base_user_role - Set a default category to associated groups

base_user_role/__openerp__.py

@@ -15,6 +15,7 @@
     ],
     'data': [
         'security/ir.model.access.csv',
+        'data/ir_module_category.xml',
         'data/ir_cron.xml',
         'views/role.xml',
         'views/user.xml',

base_user_role/data/ir_module_category.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2016 ABF OSIELL <http://osiell.com>
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+<odoo>
+
+<record model="ir.module.category" id="ir_module_category_role">
+    <field name='name'>User roles</field>
+</record>
+
+</odoo>

base_user_role/models/role.py

@@ -23,6 +23,10 @@ class ResUsersRole(models.Model):
         'res.users.role.line', 'role_id', string=u"Users")
     user_ids = fields.One2many(
         'res.users', string=u"Users", compute='_compute_user_ids')
+    group_category_id = fields.Many2one(
+        related='group_id.category_id',
+        default=lambda cls: cls.env.ref(
+            'base_user_role.ir_module_category_role').id)
 
     @api.multi
     @api.depends('line_ids.user_id')