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odoo-8

how to display tax percentage instead of tax name in invoice odoo 8

I'm trying to display tax percentage instead of their name in accounting > customer invoices enter image description here

I want to have the percentage from accounting > configuration > taxes > taxes enter image description here I don't know how to achieve this

Solution

  • The name_get returns a textual representation for the records in self.
    By default, this is the value of the display_name field.

    The method was redefined in account.tax to use the description (Code) field or the name field. In the following example, we will override the same method to show the tax amount percentage.

    class AccountTax(models.Model):
    _inherit = 'account.tax'

    @api.multi
    def name_get(self):
        res = []
        for record in self:
            percentage = int(record.amount * 100)
            name = str(percentage) + "%"
            res.append((record.id, name))
        return res

    Edit:

    To use the same representation in invoice report (which uses the name field for tax name), just call the name_get function to get the display name.

    Example: Inherit invoice report to use the display name instead of tax name

    <template id="report_invoice_document" inherit_id="account.report_invoice_document">
    <xpath expr="//tbody[hasclass('invoice_tbody')]/tr/td[5]/span" position="attributes">
        <attribute name="t-esc">', '.join(map(lambda x: x.name_get()[0][1], l.invoice_line_tax_id))</attribute>
     </xpath>
</template>