Howto inherit/override a method in sales-module

anders_w · **Joined:** Fri Feb 12, 2010 10:57 am **Posts:** 68

I'm trying to implement a new method for pricecalculation in the sale_order_line-module.

What is the recommended method for overriding?

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

# My new pricemethod, same name or new name and changed price_subtotal?
def _amount_line_pm(self, cr, uid, ids, field_name, arg, context):
res = {}
cur_obj = self.pool.get('res.currency')
for line in self.browse(cr, uid, ids):
res[line.id] = my new pricecalcutation
cur = line.order_id.pricelist_id.currency_id
res[line.id] = cur_obj.round(cr, uid, cur, res[line.id])
return res

_columns = {
'pm_length': fields.float('Length'),
'pm_width': fields.float('Width'),
'price_subtotal': fields.function(_amount_line_pm, method=True, string='Subtotal'),
}

joansipa · **Posted:** Thu Mar 18, 2010 5:28 pm

pricelist in module product is very powerful, what is you need?

excuse me my poor English.

anders_w · **Joined:** Fri Feb 12, 2010 10:57 am **Posts:** 68

I am aware of the powerful pricelistmodule, but a) I want to control inheritance when i build new modules b) I'm building a pricematrix-module using length and width to find a pricelist. This is useful for a customer that has a large number of variants for each product (ten to twenty variants, all with a new price). Another solution may have been using variants for this.

callmeknud · **Joined:** Fri Apr 30, 2010 10:35 am **Posts:** 90

Hello,

have you found a Solution?
I'm also trying to override a function, but the original one gets called, and the one i created isn't.

so, does anyone please can tell me why or how to do it right?

thanks!

eLBati · **Posted:** Thu Oct 14, 2010 9:52 am

Hi,

in your derived object, just define a method with the same name of the one you want to override.
In the overrided method, if you want to call the ancestor method, use

Code:

super(derived_object, self).method(cr, uid, ...

Jugus05 · **Joined:** Fri Jan 21, 2011 12:36 pm **Posts:** 6

Hello,

I'm working with the invoices' creation,

When I call the wizard to create an invoice, the wizard call the function in the module stock.

Now I would like that the wizard call the function in my module.

Code:

class stock_picking(osv.osv):
    _description = "Packing List"
   _table = 'stock_picking'
   _inherit = "stock.picking"

    def action_invoice_create(self, cursor, user, ids, journal_id=False,
            group=False, type='out_invoice', context=None):
        '''Return ids of created invoices for the pickings'''
        invoice_obj = self.pool.get('account.invoice')
        invoice_line_obj = self.pool.get('account.invoice.line')
        invoices_group = {}
        res = {}

.
.
.

stock_picking()

With this code, the wizard don't call my function but the original one.

Thanks

mschneider · **Joined:** Thu Jan 20, 2011 10:48 am **Posts:** 5

i have a simular problem, you have install a other modul which overrides the method as well. And this method wins. I dont know if there is a posiblity how to control witch modl wins?

eLBati · **Posted:** Sat Feb 05, 2011 10:06 pm

mschneider wrote:

i have a simular problem, you have install a other modul which overrides the method as well. And this method wins. I dont know if there is a posiblity how to control witch modl wins?

If a module overrides a method and you want to override that method too, simply override the method of the overrider module :lol:

mschneider · **Joined:** Thu Jan 20, 2011 10:48 am **Posts:** 5

i found the solution, you have to make the other modul requiered by your modul than your function overrides the other.

mihai · **Joined:** Tue Jan 18, 2011 5:16 pm **Posts:** 236

@anders_w

Hi I am trying to make price dependent on with and height, did you manage to do something in that direction?

Thanks,
Mihai