ADD contract_show_recurring_invoice module

contract_show_recurring_invoice/models/contract.py

@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+from openerp import models, api
+
+
+class AccountAnalyticAccount(models.Model):
+    _inherit = 'account.analytic.account'
+
+    @api.model
+    def _prepare_invoice_data(self, contract):
+        invoice_vals = super(AccountAnalyticAccount, self).\
+            _prepare_invoice_data(
+            contract)
+        invoice_vals['contract_id'] = contract.id
+        return invoice_vals