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invoiceinheritancev7
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Souleyman Rapaya

I want to create a class which inherits from account.invoice in order to modify the _amount_all method.
I already create this method in my module:

class account_invoice(osv.osv):
    _inherit = 'account.invoice'

   def _amount_all(self, cr, uid, ids, name, args, context=None):
        res = super(account_invoice, self)._amount_all(cr, uid, ids, name, args, context)
        # My operations
        return res

But when installed, my method is never called.

Is there another way for doing this inheritance?

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Zbik
Best Answer

In addition, in your module, you redefine all culumns where _amount_all is called. For v7:

_columns  = {

        'amount_untaxed': fields.function(_amount_all, digits_compute=dp.get_precision('Account'), string='Subtotal', track_visibility='always',
            store={
                'account.invoice': (lambda self, cr, uid, ids, c={}: ids, ['invoice_line'], 20),
                'account.invoice.tax': (_get_invoice_tax, None, 20),
                'account.invoice.line': (_get_invoice_line, ['price_unit','invoice_line_tax_id','quantity','discount','invoice_id'], 20),
            },
            multi='all'),

        'amount_tax': fields.function(_amount_all, digits_compute=dp.get_precision('Account'), string='Tax',
            store={
                'account.invoice': (lambda self, cr, uid, ids, c={}: ids, ['invoice_line'], 20),
                'account.invoice.tax': (_get_invoice_tax, None, 20),
                'account.invoice.line': (_get_invoice_line, ['price_unit','invoice_line_tax_id','quantity','discount','invoice_id'], 20),
            },
            multi='all'),

        'amount_total': fields.function(_amount_all, digits_compute=dp.get_precision('Account'), string='Total',
            store={
                'account.invoice': (lambda self, cr, uid, ids, c={}: ids, ['invoice_line'], 20),
                'account.invoice.tax': (_get_invoice_tax, None, 20),
                'account.invoice.line': (_get_invoice_line, ['price_unit','invoice_line_tax_id','quantity','discount','invoice_id'], 20),
            },
            multi='all'),

}

The method will be called.

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