to get login user group. We can use these lines of code on a "button click, onchange, computed filed etc".
Method 1:
user = self.env['res.users'].sudo().search(
[('login','=',self.env.user.login)])
desired_group_user = self.env['res.groups'].sudo().search(
[('name','=','desired_group_name')])
query = "select gid from res_groups_users_rel where
gid ={} and uid={}".format(desired_group_user.id,user.id)
self.env.cr.execute(query)
is_desired_group = self.env.cr.fetchone()
desired_user_gr = self.env['res.groups'].sudo().search(
[('id','=',is_desired_group)])Method 2:
desired_group_name = self.env['res.groups'].search(
[('name','=','desired_group_name')])
is_desired_group = self.env.user.id in desired_group_name.users.ids