From 3751379f1e9a4c215fb6eb898b4ccc67659b9ace Mon Sep 17 00:00:00 2001
From: stephanchrst <stephanchrst@gmail.com>
Date: Tue, 10 May 2022 21:51:50 +0700
Subject: initial commit 2

---
 addons/l10n_de/models/datev.py | 57 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 addons/l10n_de/models/datev.py

(limited to 'addons/l10n_de/models/datev.py')

diff --git a/addons/l10n_de/models/datev.py b/addons/l10n_de/models/datev.py
new file mode 100644
index 00000000..d2e0f8cb
--- /dev/null
+++ b/addons/l10n_de/models/datev.py
@@ -0,0 +1,57 @@
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+from odoo.tools.translate import _
+
+class AccountTaxTemplate(models.Model):
+    _inherit = 'account.tax.template'
+
+    l10n_de_datev_code = fields.Char(size=2)
+
+    def _get_tax_vals(self, company, tax_template_to_tax):
+        vals = super(AccountTaxTemplate, self)._get_tax_vals(company, tax_template_to_tax)
+        vals['l10n_de_datev_code'] = self.l10n_de_datev_code
+        return vals
+
+class AccountTax(models.Model):
+    _inherit = "account.tax"
+
+    l10n_de_datev_code = fields.Char(size=2, help="2 digits code use by Datev")
+
+
+class AccountMove(models.Model):
+    _inherit = 'account.move'
+
+    def _post(self, soft=True):
+        # OVERRIDE to check the invoice lines taxes.
+        for invoice in self.filtered(lambda move: move.is_invoice()):
+            for line in invoice.invoice_line_ids:
+                account_tax = line.account_id.tax_ids.ids
+                if account_tax and invoice.company_id.country_id.code == 'DE':
+                    account_name = line.account_id.name
+                    for tax in line.tax_ids:
+                        if tax.id not in account_tax:
+                            raise UserError(_('Account %s does not authorize to have tax %s specified on the line. \
+                                Change the tax used in this invoice or remove all taxes from the account') % (account_name, tax.name))
+        return super()._post(soft)
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    def _get_product_accounts(self):
+        """ As taxes with a different rate need a different income/expense account, we add this logic in case people only use
+         invoicing to not be blocked by the above constraint"""
+        result = super(ProductTemplate, self)._get_product_accounts()
+        company = self.env.company
+        if company.country_id.code == "DE":
+            if not self.property_account_income_id:
+                taxes = self.taxes_id.filtered(lambda t: t.company_id == company)
+                if not result['income'] or (result['income'].tax_ids and taxes and taxes[0] not in result['income'].tax_ids):
+                    result['income'] = self.env['account.account'].search([('internal_group', '=', 'income'), ('deprecated', '=', False),
+                                                                   ('tax_ids', 'in', taxes.ids)], limit=1)
+            if not self.property_account_expense_id:
+                supplier_taxes = self.supplier_taxes_id.filtered(lambda t: t.company_id == company)
+                if not result['expense'] or (result['expense'].tax_ids and supplier_taxes and supplier_taxes[0] not in result['expense'].tax_ids):
+                    result['expense'] = self.env['account.account'].search([('internal_group', '=', 'expense'), ('deprecated', '=', False),
+                                                                   ('tax_ids', 'in', supplier_taxes.ids)], limit=1)
+        return result
-- 
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