gistfile1.txt

cd /usr/share/foreman
rails c
1.9.3-p484 :001 > a = Host.find_by_name 'hostname'
1.9.3-p484 :002 > a.interfaces
  Nic::Base Load (1.2ms)  SELECT `nics`.* FROM `nics` WHERE `nics`.`host_id` = 237
+----+-------------------+-------------+----------+------+---------+-----------+-----------+-------------------------+-------------------------+-------------------------+
| id | mac               | ip          | type     | name | host_id | subnet_id | domain_id | attrs                   | created_at              | updated_at              |
+----+-------------------+-------------+----------+------+---------+-----------+-----------+-------------------------+-------------------------+-------------------------+
| 6  | 5c:f9:dd:f0:a7:50 | 10.199.11.8 | Nic::BMC |      | 237     |           |           | {:username=>"root", ... | 2013-11-27 01:00:37 UTC | 2013-11-27 01:00:37 UTC |
+----+-------------------+-------------+----------+------+---------+-----------+-----------+-------------------------+-------------------------+-------------------------+



1.9.3-p484 :008 > b = a.interfaces.new(:mac => '5c:f9:dd:f0:a7:51', :ip => '10.199.11.19', :type => 'Nic::Managed', :host_id => '237')
+----+-------------------+--------------+--------------+------+---------+-----------+-----------+-------+------------+------------+
| id | mac               | ip           | type         | name | host_id | subnet_id | domain_id | attrs | created_at | updated_at |
+----+-------------------+--------------+--------------+------+---------+-----------+-----------+-------+------------+------------+
|    | 5c:f9:dd:f0:a7:51 | 10.199.11.19 | Nic::Managed |      | 237     |           |           | {}    |            |            |
+----+-------------------+--------------+--------------+------+---------+-----------+-----------+-------+------------+------------+
1 row in set


1.9.3-p484 :009 > b.save