[NEW] contract_invoice_merge_by_partner: New module

contract_invoice_merge_by_partner/models/account_analytic_analysis.py

@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+# © 2016 Carlos Dauden <carlos.dauden@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from openerp import api, models
+
+
+class PurchaseOrderLine(models.Model):
+    _inherit = 'account.analytic.account'
+
+    @api.multi
+    def _recurring_create_invoice(self, automatic=False):
+        invoices = self.env['account.invoice'].browse(
+            super(PurchaseOrderLine, self)._recurring_create_invoice(automatic)
+        )
+        res = []
+        unlink_list = []
+        for partner in invoices.mapped('partner_id'):
+            inv_to_merge = invoices.filtered(lambda x: x.partner_id == partner)
+            if len(inv_to_merge) > 1:
+                invoices_info = inv_to_merge.do_merge(
+                    keep_references=True, date_invoice=False)
+                res.extend(invoices_info.keys())
+                for inv_ids_list in invoices_info.values():
+                    unlink_list.append(inv_ids_list)
+            else:
+                res.append(inv_to_merge.id)
+        return res