Hi,

I'm new to Odoo, and I need to override a existing method.

What i need is to insert new lines on Bill Of Material tree, on changing product template id. 

There are just a method on mrp_bom class, called onchange_product_tmpl_id, so according with what i understood, i need to inherit the mrp_bom class in a new class, and override the onchange_product_tmpl_id method with a new one.

How can I override the method with new api (the old super() in OpenERP) and fire the onchange method when ai change the product template id?

Something like that:

class bom_template(models.Model):

    _inherit = 'mrp.bom'

    @api.onchange

    def _populate_bom_lines(self):

        lines =[]

        for val in self.bom_template: #value on a BOM template that cointain products
        line_item = {
                      'attr1': val.name,
                      'attr2': val.a1,
                      ...                             
                }
        lines += [line_item]
    self.update({'line': lines})