63 lines
2.7 KiB
Python
Executable File
63 lines
2.7 KiB
Python
Executable File
# -*- coding: utf-8 -*-
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from odoo import fields, models, api, _
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from odoo.exceptions import UserError
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class Invoice(models.Model):
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_inherit = "account.invoice"
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global_discount = fields.Boolean("Add Global Discount", readonly=True, states={'draft': [('readonly', False)]},)
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discount_type = fields.Selection([('fixed','Fixed'),('percentage','Percentage')],
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"Discount Type", readonly=True, states={'draft': [('readonly', False)]}, default='fixed')
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discount_amount = fields.Float("Discount Amount", readonly=True, states={'draft': [('readonly', False)]},)
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discount_percentage = fields.Float("Discount Percentage", readonly=True, states={'draft': [('readonly', False)]},)
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@api.multi
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def _discount_unset(self):
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if self.env.user.company_id.invoice_discount_product_id:
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self.env['account.invoice.line'].search([('invoice_id', 'in', self.ids), ('product_id', '=', self.env.user.company_id.invoice_discount_product_id.id)]).unlink()
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@api.multi
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def create_discount(self):
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InvoiceLine = self.env['account.invoice.line']
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product_id = self.env.user.company_id.invoice_discount_product_id
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if not product_id:
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raise UserError(_('Please set Invoice Discount product in General Settings first.'))
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# Remove Discount line first
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self._discount_unset()
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account_id = product_id.property_account_income_id.id
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if not account_id:
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prop = self.env['ir.property'].get('property_account_income_categ_id', 'product.category')
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account_id = prop and prop.id or False
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for invoice in self:
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amount = 0
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if invoice.discount_type == 'fixed':
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amount = invoice.discount_amount
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if invoice.discount_type == 'percentage':
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amount = (invoice.amount_total * invoice.discount_percentage)/100
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# Apply fiscal position
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taxes = product_id.taxes_id.filtered(lambda t: t.company_id.id == invoice.company_id.id)
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taxes_ids = taxes.ids
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if invoice.partner_id and self.fiscal_position_id:
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taxes_ids = self.fiscal_position_id.map_tax(taxes, product_id, invoice.partner_id).ids
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# Create the Invoice line
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InvoiceLine.create({
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'name': product_id.name,
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'price_unit': -amount,
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'account_id': account_id,
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'quantity': 1.0,
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'discount': 0.0,
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'uom_id': product_id.uom_id.id,
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'product_id': product_id.id,
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'invoice_id': invoice.id,
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'invoice_line_tax_ids': [(6, 0, taxes_ids)],
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'sequence': 100,
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})
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return True
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