Hi,

I need to pull through a boolean field from res.partner to account.invoice in order to filter invoices based on Partner data.

From what I've read this can be accomplished through a related field. I can see there's some documentation here -

https://www.odoo.com/documentation/8.0/reference/orm.html and a different example here -

https://odedrabhavesh.blogspot.co.uk/2015/02/how-related-field-work-in-odoo.html however I'm not to sure where this code would go. The second link seems to be suggesting that I need to create a module from the looks of it? It's also not very clear what each parameter does in the second example:

class sale_order_line(osv.Model):
    _inherit = 'sale.order.line'

    _columns = {
        'product_categ_name': fields.related('product_id', 'categ_id', 'name', type='char', string='Product Category', store=True, readonly=True ), 
    }

_inherit - I assume this is the model that we want to modify

product_categ_name - name of the related field

product_id - id of the record we are linking to, in this case Product model

categ_id - ?

name - I assume this is name of the field from the other model that we want the value to be?

type - field type

string - field label

store - whether to store the computed value on the database

readonly - read only or not

In my case I would need to do something like this?

class bank_account_active(osv.Model):
    _inherit = 'account.invoice'

    _columns = {
        'bank_account_active': fields.related('partner_id', '???', 'restrict_invoice', type='boolean', string='Bank Account Active', store=True, readonly=True ),
     }

If anyone can push me into the right direction would great. I haven't done much python with Odoo just yet, outside from adding some python expressions through the interface, which is probably why I'm feeling a little lost here.

Thanks.