odoo8 or openerp 通过xml id获取数据库id

How to get the Database Id from an XML Id

The ir.model.data model also has a get_object() method returning a browsable record given a model name and an xml_id.

So, another solution could be:

m  = self.pool.get('ir.model.data')id = m.get_object(cr, uid, 'base', 'user_root').id

get_object(cr, uid, module, xml_id)

module是路径名字，xml_id就是 xml文件中<record id='xxxx'/>中的id