44 lines
2.6 KiB
Python
44 lines
2.6 KiB
Python
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# -*- coding: utf-8 -*-
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from odoo import models, api, fields
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class AccountInvoiceLine(models.Model):
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_inherit = 'account.invoice.line'
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@api.model
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def create(self, vals):
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'''This method is overridden to update discount amount in invoice,
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when invoice is getting created from sale order, and discount type selected in sale order is percentage.
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Since, discount amount in readonly field and it gets updated by onchange method, which won't get called when invoice is created from backend.'''
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if vals.get('invoice_id'):
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invoice_obj = self.env['account.invoice'].browse(vals.get('invoice_id'))
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amount_untaxed = 0.0
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amount_tax = 0.0
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# calculating total from already created invoice lines.
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for ln in invoice_obj.invoice_line_ids:
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amount_untaxed += ln.price_subtotal
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taxes = ln.invoice_line_tax_ids.compute_all(ln.price_subtotal, invoice_obj.currency_id,
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ln.quantity, product=ln.product_id,
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partner=invoice_obj.partner_shipping_id)
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amount_tax += sum(t.get('amount', 0.0) for t in taxes.get('taxes', []))
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if vals.get('invoice_line_tax_ids'):
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price_unit = vals.get('price_unit') * vals.get('quantity')
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if vals.get('discount'):
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price_unit = price_unit * (1 - vals['discount']/100)
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amount_untaxed += price_unit
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tax_ids = []
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if len(vals['invoice_line_tax_ids'][0]) == 3:
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tax_ids = vals['invoice_line_tax_ids'][0][2]
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elif len(vals['invoice_line_tax_ids'][0]) == 1:
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tax_ids = vals['invoice_line_tax_ids'][0]
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tax_obj = self.env['account.tax'].browse(tax_ids)
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taxes = tax_obj.compute_all(price_unit, invoice_obj.currency_id,
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vals.get('quantity'), product=vals.get('product_id'),
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partner=invoice_obj.partner_id)
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amount_tax += sum(t.get('amount', 0.0) for t in taxes.get('taxes', []))
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if invoice_obj.discount_type == 'percentage':
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discount_amount = (invoice_obj.currency_id.round(amount_untaxed) +
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invoice_obj.currency_id.round(amount_tax)) * invoice_obj.discount_percentage / 100
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invoice_obj.write({'discount': discount_amount})
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return super(AccountInvoiceLine, self).create(vals)
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