Add wizard to select several invoices at once and add them to payment order

Fix bug in groupby on bank payment lines

account_payment_order/wizard/__init__.py

@@ -1,3 +1,4 @@
 # -*- coding: utf-8 -*-
 
 from . import account_payment_line_create
+from . import account_invoice_payment_line_multi

account_payment_order/wizard/account_invoice_payment_line_multi.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# © 2016 Akretion (<http://www.akretion.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from openerp import models, api
+
+
+class AccountInvoicePaymentLineMulti(models.TransientModel):
+    _name = 'account.invoice.payment.line.multi'
+    _description = 'Create payment lines from invoice tree view'
+
+    @api.multi
+    def run(self):
+        self.ensure_one()
+        assert self._context['active_model'] == 'account.invoice',\
+            'Active model should be account.invoice'
+        invoices = self.env['account.invoice'].browse(
+            self._context['active_ids'])
+        action = invoices.create_account_payment_line()
+        return action

account_payment_order/wizard/account_invoice_payment_line_multi_view.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  © 2016 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+
+<odoo>
+<data>
+
+
+<record id="account_invoice_payment_line_multi_form" model="ir.ui.view">
+    <field name="name">account_invoice_payment_line_multi.form</field>
+    <field name="model">account.invoice.payment.line.multi</field>
+    <field name="arch"  type="xml">
+        <form string="Create Payment Lines">
+            <p>This wizard will create payment lines for the selected invoices:</p>
+            <ul>
+              <li>if there are existing draft payment orders for the payment modes of the invoices, the payment lines will be added to those payment orders</li>
+              <li>otherwise, new payment orders will be created (one per payment mode).</li>
+            </ul>
+            <footer>
+                <button type="object" name="run" string="Create" class="oe_highlight"/>
+                <button special="cancel" string="Cancel" class="oe_link"/>
+            </footer>
+        </form>
+    </field>
+</record>
+
+
+</data>
+</odoo>