Merge PR #480 into 12.0

Signed-off-by legalsylvain
5 years ago · 1546cdd246
26 changed files with 1096 additions and 0 deletions
--- a/pos_payment_change/README.rst
+++ b/pos_payment_change/README.rst
@ -0,0 +1,8 @@
+==============================
+Point Of Sale - Change Payment
+==============================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
--- a/pos_payment_change/init.py
+++ b/pos_payment_change/init.py
@ -0,0 +1,2 @@
+from . import models
+from . import wizards
--- a/pos_payment_change/manifest.py
+++ b/pos_payment_change/manifest.py
@ -0,0 +1,22 @@
+# Copyright (C) 2013 - Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    "name": "Point Of Sale - Change Payments",
+    "version": "12.0.1.0.0",
+    "summary": "Allow cashier to change order payments, as long as"
+    " the session is not closed.",
+    "category": "Point Of Sale",
+    "author": "GRAP, Odoo Community Association (OCA)",
+    "website": "https://www.github.com/OCA/pos",
+    "license": "AGPL-3",
+    "depends": ["point_of_sale"],
+    "maintainers": ["legalsylvain"],
+    "development_status": "Beta",
+    "data": [
+        "wizards/view_pos_payment_change_wizard.xml",
+        "views/view_pos_config.xml",
+        "views/view_pos_order.xml",
+    ],
+    "installable": True,
+}
--- a/pos_payment_change/i18n/fr.po
+++ b/pos_payment_change/i18n/fr.po
@ -0,0 +1,215 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#   * pos_payment_change
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 12.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2020-05-18 17:33+0000\n"
+"PO-Revision-Date: 2020-05-18 17:33+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_order.py:79
+#, python-format
+msgid " (Refund Order: %s ; Resale Order: %s)"
+msgstr " (Remboursement: %s ; Revente : %s)"
+
+#. module: pos_payment_change
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_config_form
+msgid "<span class=\"o_form_label\">Payment Change Policy</span>"
+msgstr "<span class=\"o_form_label\">Méthode de changement de paiement</span>"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__amount
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__amount
+msgid "Amount"
+msgstr "Montant"
+
+#. module: pos_payment_change
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_payment_change_wizard_form
+msgid "Cancel"
+msgstr "Annuler"
+
+#. module: pos_payment_change
+#: model:ir.actions.act_window,name:pos_payment_change.action_pos_payment_change_wizard
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_order_form
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_payment_change_wizard_form
+msgid "Change Payments"
+msgstr "Changer les paiements"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__create_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__create_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__create_uid
+msgid "Created by"
+msgstr "Créé par"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__create_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__create_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__create_date
+msgid "Created on"
+msgstr "Créé le"
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/wizards/pos_payment_change_wizard.py:69
+#, python-format
+msgid "Differences between the two values for the POS Order '%s':\n"
+"\n"
+" * Total of all the new payments %s;\n"
+" * Total of the POS Order %s;\n"
+"\n"
+"Please change the payments."
+msgstr "Différences entre les deux valeurs pour la vente '%s':\n"
+"\n"
+" * Total des nouveaux paiements %s;\n"
+" * Total de la vente %s;\n"
+"\n"
+"Veuillez changer les paiements."
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__display_name
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__display_name
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__display_name
+msgid "Display Name"
+msgstr "Nom affiché"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__id
+msgid "ID"
+msgstr "ID"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__new_journal_id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__old_journal_id
+msgid "Journal"
+msgstr "Journal"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard____last_update
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line____last_update
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line____last_update
+msgid "Last Modified on"
+msgstr "Dernière modification le"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__write_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__write_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__write_uid
+msgid "Last Updated by"
+msgstr "Dernière mise à jour par"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__write_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__write_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__write_date
+msgid "Last Updated on"
+msgstr "Dernière mise à jour le"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__new_line_ids
+msgid "New Payment Lines"
+msgstr "Nouveaux paiements"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__old_line_ids
+msgid "Old Payment Lines"
+msgstr "Anciens paiements"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__order_id
+msgid "Order"
+msgstr "Commande"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_config__payment_change_policy
+msgid "Payment Change Policy"
+msgstr "Méthode de changement de paiement"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,help:pos_payment_change.field_pos_config__payment_change_policy
+msgid "Payment Change Policy when users want to change the payment lines of a given PoS Order.\n"
+"* 'Refund and Resale': Odoo will refund the current Pos Order to cancel it, and create a new PoS Order with the correct payment lines.\n"
+"* 'Update Payments': Odoo will change payment lines.\n"
+"\n"
+"Note : In some countries the 'Update Payments' Option is not allowed by law, because orders history shouldn't not be altered."
+msgstr "Méthode de changement de paiement quand les utilisateurs veulent changer des lignes de paiement d'une vente en caisse.\n"
+"* 'Retourner et revendre': Odoo va réaliser un retour du la vente pour l'annuler, puis recréera une nouvelle vente, avec les paiements corrects.\n"
+"* 'Modifier les paiements': Odoo va changer les lignes de paiements.\n"
+"\n"
+"Note : dans certains pays, l'option 'Modifier les paiements' n'est pas autorisé par la loi, parce que l'historique des ventes ne doit pas être altéré."
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_payment_change_wizard
+msgid "PoS Payment Change Wizard"
+msgstr "Assistant de changement de paiement du Point de Vente"
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_payment_change_wizard_new_line
+msgid "PoS Payment Change Wizard New Line"
+msgstr "Nouvelle ligne de l'ssistant de changement de paiement du Point de Vente"
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_payment_change_wizard_old_line
+msgid "PoS Payment Change Wizard Old Line"
+msgstr "Ancienne ligne de l'ssistant de changement de paiement du Point de Vente"
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_config
+msgid "Point of Sale Configuration"
+msgstr "Paramétrage du point de vente"
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_order
+msgid "Point of Sale Orders"
+msgstr "Commandes du point de vente"
+
+#. module: pos_payment_change
+#: selection:pos.config,payment_change_policy:0
+msgid "Refund and Resale"
+msgstr "Retourner et revendre"
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_order.py:43
+#, python-format
+msgid "The payments of the Order %s (Ref: %s) has been changed by %s at %s."
+msgstr "Les paiements de la commande %s (Réf: %s) ont été changés par %s à %s."
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__amount_total
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_payment_change_wizard_form
+msgid "Total"
+msgstr "Total"
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_config.py:43
+#, python-format
+msgid "Unable to use the 'Update Payments' options for companies that have unalterable accounting."
+msgstr "Impossible d'utiliser l'option 'Modifier les paiements' pour les sociétés qui ont une comptabilité inaltérable."
+
+#. module: pos_payment_change
+#: selection:pos.config,payment_change_policy:0
+msgid "Update Payments"
+msgstr "Modifier les paiements"
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__wizard_id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__wizard_id
+msgid "Wizard"
+msgstr "Assistant"
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_order.py:97
+#, python-format
+msgid "You can not change payments of the POS '%s' because the associated session '%s' has been closed!"
+msgstr "Vous ne pouvez pas changer les paiements de la Vente '%s' car la session associée '%s' a été clôturé !"
+
--- a/pos_payment_change/i18n/pos_payment_change.pot
+++ b/pos_payment_change/i18n/pos_payment_change.pot
@ -0,0 +1,206 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#   * pos_payment_change
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 12.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2020-05-18 17:33+0000\n"
+"PO-Revision-Date: 2020-05-18 17:33+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_order.py:79
+#, python-format
+msgid " (Refund Order: %s ; Resale Order: %s)"
+msgstr ""
+
+#. module: pos_payment_change
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_config_form
+msgid "<span class=\"o_form_label\">Payment Change Policy</span>"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__amount
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__amount
+msgid "Amount"
+msgstr ""
+
+#. module: pos_payment_change
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_payment_change_wizard_form
+msgid "Cancel"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.actions.act_window,name:pos_payment_change.action_pos_payment_change_wizard
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_order_form
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_payment_change_wizard_form
+msgid "Change Payments"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__create_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__create_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__create_uid
+msgid "Created by"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__create_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__create_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__create_date
+msgid "Created on"
+msgstr ""
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/wizards/pos_payment_change_wizard.py:69
+#, python-format
+msgid "Differences between the two values for the POS Order '%s':\n"
+"\n"
+" * Total of all the new payments %s;\n"
+" * Total of the POS Order %s;\n"
+"\n"
+"Please change the payments."
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__display_name
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__display_name
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__display_name
+msgid "Display Name"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__id
+msgid "ID"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__new_journal_id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__old_journal_id
+msgid "Journal"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard____last_update
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line____last_update
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line____last_update
+msgid "Last Modified on"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__write_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__write_uid
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__write_uid
+msgid "Last Updated by"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__write_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__write_date
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__write_date
+msgid "Last Updated on"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__new_line_ids
+msgid "New Payment Lines"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__old_line_ids
+msgid "Old Payment Lines"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__order_id
+msgid "Order"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_config__payment_change_policy
+msgid "Payment Change Policy"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,help:pos_payment_change.field_pos_config__payment_change_policy
+msgid "Payment Change Policy when users want to change the payment lines of a given PoS Order.\n"
+"* 'Refund and Resale': Odoo will refund the current Pos Order to cancel it, and create a new PoS Order with the correct payment lines.\n"
+"* 'Update Payments': Odoo will change payment lines.\n"
+"\n"
+"Note : In some countries the 'Update Payments' Option is not allowed by law, because orders history shouldn't not be altered."
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_payment_change_wizard
+msgid "PoS Payment Change Wizard"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_payment_change_wizard_new_line
+msgid "PoS Payment Change Wizard New Line"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_payment_change_wizard_old_line
+msgid "PoS Payment Change Wizard Old Line"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_config
+msgid "Point of Sale Configuration"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model,name:pos_payment_change.model_pos_order
+msgid "Point of Sale Orders"
+msgstr ""
+
+#. module: pos_payment_change
+#: selection:pos.config,payment_change_policy:0
+msgid "Refund and Resale"
+msgstr ""
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_order.py:43
+#, python-format
+msgid "The payments of the Order %s (Ref: %s) has been changed by %s at %s."
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard__amount_total
+#: model_terms:ir.ui.view,arch_db:pos_payment_change.view_pos_payment_change_wizard_form
+msgid "Total"
+msgstr ""
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_config.py:43
+#, python-format
+msgid "Unable to use the 'Update Payments' options for companies that have unalterable accounting."
+msgstr ""
+
+#. module: pos_payment_change
+#: selection:pos.config,payment_change_policy:0
+msgid "Update Payments"
+msgstr ""
+
+#. module: pos_payment_change
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_new_line__wizard_id
+#: model:ir.model.fields,field_description:pos_payment_change.field_pos_payment_change_wizard_old_line__wizard_id
+msgid "Wizard"
+msgstr ""
+
+#. module: pos_payment_change
+#: code:addons/pos_payment_change/models/pos_order.py:97
+#, python-format
+msgid "You can not change payments of the POS '%s' because the associated session '%s' has been closed!"
+msgstr ""
+
--- a/pos_payment_change/models/init.py
+++ b/pos_payment_change/models/init.py
@ -0,0 +1,2 @@
+from . import pos_config
+from . import pos_order
--- a/pos_payment_change/models/pos_config.py
+++ b/pos_payment_change/models/pos_config.py
@ -0,0 +1,46 @@
+# Copyright (C) 2020 - Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class PosConfig(models.Model):
+    _inherit = "pos.config"
+
+    _PAYMENT_CHANGE_POLICY_SELECTION = [
+        ('refund', "Refund and Resale"),
+        ('update', "Update Payments"),
+    ]
+
+    payment_change_policy = fields.Selection(
+        selection=_PAYMENT_CHANGE_POLICY_SELECTION,
+        default="refund", required=True,
+        help="Payment Change Policy when users want"
+        " to change the payment lines of a given PoS Order.\n"
+        "* 'Refund and Resale': Odoo will refund the current"
+        " Pos Order to cancel it, and create a new PoS Order"
+        " with the correct payment lines.\n"
+        "* 'Update Payments': Odoo will change payment lines.\n\n"
+        "Note : In some countries the 'Update Payments' Option"
+        " is not allowed by law, because orders history shouldn't"
+        " not be altered.")
+
+    @api.constrains("payment_change_policy")
+    def _check_payment_change_policy(self):
+        # Check if certification module is installed
+        # and if yes, if 'update payments' option is allowed
+        module_states = self.env["ir.module.module"].sudo().search([
+            ("name", "=", "l10n_fr_certification")]
+        ).mapped("state")
+        if "installed" not in module_states:
+            return
+        for config in self.filtered(
+            lambda x: x.payment_change_policy == "update"
+        ):
+            if config.company_id._is_accounting_unalterable():
+                raise ValidationError(_(
+                    "Unable to use the 'Update Payments' options"
+                    " for companies that have unalterable accounting."
+                ))
--- a/pos_payment_change/models/pos_order.py
+++ b/pos_payment_change/models/pos_order.py
@ -0,0 +1,100 @@
+# Copyright (C) 2015 - Today: GRAP (http://www.grap.coop)
+# @author: Julien WESTE
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from datetime import datetime
+
+from odoo import _, api, fields, models
+from odoo.tools import float_is_zero
+from odoo.exceptions import Warning as UserError
+
+
+class PosOrder(models.Model):
+    _inherit = "pos.order"
+
+    @api.multi
+    def change_payment(self, payment_lines):
+        """
+        Change payment of a given order.
+        payment_lines should be a list of data that are
+        the argument of the Odoo Core function add_payment()
+        Return a list of order ids, depending on the
+        payment_change_policy of the related pos_config.
+        """
+        self.ensure_one()
+        orders = self
+
+        # Removing zero lines
+        precision = self.pricelist_id.currency_id.decimal_places
+        payment_lines = [
+            x for x in payment_lines if not float_is_zero(
+                x["amount"], precision_digits=precision)
+        ]
+
+        self._check_payment_change_allowed()
+
+        comment = _(
+            "The payments of the Order %s (Ref: %s) has been changed"
+            " by %s at %s." % (
+                self.name,
+                self.pos_reference,
+                self.env.user.name,
+                datetime.today(),
+            )
+        )
+
+        if self.config_id.payment_change_policy == "update":
+            self.statement_ids.with_context().unlink()
+
+            # Create new payment
+            for line in payment_lines:
+                self.add_payment(line)
+
+        elif self.config_id.payment_change_policy == "refund":
+            # Refund order and mark it as paid
+            # with same payment method as the original one
+            refund_result = self.refund()
+            refund_order = self.browse(refund_result["res_id"])
+
+            for statement in self.statement_ids:
+                refund_order.add_payment({
+                    "journal": statement.journal_id.id,
+                    "amount": - statement.amount,
+                    "payment_date": fields.Date.context_today(self),
+                })
+            refund_order.action_pos_order_paid()
+
+            # Resale order and mark it as paid
+            # with the new payment
+            resale_order = self.copy(
+                default={"pos_reference": self.pos_reference}
+            )
+
+            for line in payment_lines:
+                resale_order.add_payment(line)
+            resale_order.action_pos_order_paid()
+
+            orders += refund_order + resale_order
+            comment += _(" (Refund Order: %s ; Resale Order: %s)" % (
+                refund_order.name, resale_order.name))
+        for order in orders:
+            order.note = "%s\n%s" % (order.note or "", comment)
+        return orders
+
+    @api.multi
+    def _check_payment_change_allowed(self):
+        """Return True if the user can change the payment of a POS, depending
+        of the state of the current session."""
+        closed_orders = self.filtered(lambda x: x.session_id.state == "closed")
+        if len(closed_orders):
+            raise UserError(
+                _(
+                    "You can not change payments of the POS '%s' because"
+                    " the associated session '%s' has been closed!"
+                    % (
+                        ", ".join(closed_orders.mapped("name")),
+                        ", ".join(closed_orders.mapped("session_id.name")),
+                    )
+                )
+            )
--- a/pos_payment_change/readme/CONFIGURE.rst
+++ b/pos_payment_change/readme/CONFIGURE.rst
@ -0,0 +1,23 @@
+* Go to Point of Sale > Configuration > Point of Sale
+* Edit your point of sale, and select a value for the field
+  'Payment Change Policy'.
+
+Two options are available:
+
+* 'Refund and Resale': Odoo will refund the current
+  Pos Order to cancel it, and create a new PoS Order
+  with the correct payment lines
+
+* 'Update Payments': Odoo will change payment lines.
+
+.. figure:: ../static/description/pos_config_form.png
+
+
+**Note**
+In some countries the 'Update Payments' Option
+is not allowed by law, because orders history shouldn't not be altered.
+
+For that purpose, a constrains is present to check the value of this
+field. If the module ``l10n_fr_certification`` is installed and if the
+current company has an inalterable accounting, it will not be possible
+to select the value 'Update Payments'.
--- a/pos_payment_change/readme/CONTRIBUTORS.rst
+++ b/pos_payment_change/readme/CONTRIBUTORS.rst
@ -0,0 +1,2 @@
+* Sylvain LE GAL <https://twitter.com/legalsylvain>
+* Julien WESTE
--- a/pos_payment_change/readme/CREDITS.rst
+++ b/pos_payment_change/readme/CREDITS.rst
@ -0,0 +1,4 @@
+The development of this module has been financially supported by:
+
+* GRAP, Groupement Régional Alimentaire de proximité (www.grap.coop)
+* Vracoop (www.vracoop.fr)
--- a/pos_payment_change/readme/DESCRIPTION.rst
+++ b/pos_payment_change/readme/DESCRIPTION.rst
@ -0,0 +1,6 @@
+This module extends the functionnality of the Odoo Point of Sale to
+allow the cashier to change the payments of a PoS order.
+
+This feature is usefull when the user realized that he did a mistake,
+just after he marked the order as paid, or during the close of the session,
+Only if entries has not been generated.
--- a/pos_payment_change/readme/USAGE.rst
+++ b/pos_payment_change/readme/USAGE.rst
@ -0,0 +1,19 @@
+* Go to a PoS Order
+
+* Click on the button 'Change Payments'
+
+.. figure:: ../static/description/pos_order_form.png
+
+* In the pop up wizard, select the real payment(s) that have been
+  used to pay the order
+
+.. figure:: ../static/description/pos_payment_change_wizard_form.png
+
+* Then click on the button 'Change Payments'
+
+**Note**
+
+If the option 'Refund and Resale' is selected, changing the payments will
+display the three PoS orders. the oringal one, the refund one, and the new one.
+
+.. figure:: ../static/description/pos_order_tree.png
--- a/pos_payment_change/static/description/pos_config_form.png
+++ b/pos_payment_change/static/description/pos_config_form.png
--- a/pos_payment_change/static/description/pos_order_form.png
+++ b/pos_payment_change/static/description/pos_order_form.png
--- a/pos_payment_change/static/description/pos_order_tree.png
+++ b/pos_payment_change/static/description/pos_order_tree.png
--- a/pos_payment_change/static/description/pos_payment_change_wizard_form.png
+++ b/pos_payment_change/static/description/pos_payment_change_wizard_form.png
--- a/pos_payment_change/tests/init.py
+++ b/pos_payment_change/tests/init.py
@ -0,0 +1 @@
+from . import test_module
--- a/pos_payment_change/tests/test_module.py
+++ b/pos_payment_change/tests/test_module.py
@ -0,0 +1,172 @@
+# Copyright (C) 2018 - Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields
+from odoo.tests.common import TransactionCase
+from odoo.exceptions import UserError
+
+
+class TestModule(TransactionCase):
+    """Tests for 'Point of Sale - Change Payment' Module"""
+
+    def setUp(self):
+        super().setUp()
+        self.PosSession = self.env["pos.session"]
+        self.PosOrder = self.env["pos.order"]
+        self.AccountJournal = self.env["account.journal"]
+        self.PosMakePayment = self.env['pos.make.payment']
+        self.PosPaymentChangeWizard = self.env["pos.payment.change.wizard"]
+        self.PosPaymentChangeWizardNewLine = self.env[
+            "pos.payment.change.wizard.new.line"
+        ]
+        self.product = self.env.ref("product.product_product_3")
+        self.pos_config = self.env.ref("point_of_sale.pos_config_main").copy()
+
+    def _initialize_journals_open_session(self):
+
+        self.check_journal = self.AccountJournal.create({
+            "name": "Demo Check Journal",
+            "type": "bank",
+            "journal_user": True,
+        })
+        self.cash_journal = self.AccountJournal.create({
+            "name": "Demo Cash Journal",
+            "type": "cash",
+            "journal_user": True,
+        })
+
+        # create new session and open it
+        self.pos_config.journal_ids = [
+            self.check_journal.id,
+            self.cash_journal.id,
+        ]
+        self.pos_config.open_session_cb()
+        self.session = self.pos_config.current_session_id
+        self.check_statement = self.session.statement_ids.filtered(
+            lambda x: x.journal_id == self.check_journal
+        )
+        self.cash_statement = self.session.statement_ids.filtered(
+            lambda x: x.journal_id == self.cash_journal
+        )
+
+    def _sale(self, journal_1, price_1, journal_2=False, price_2=0.0):
+        price = price_1 + price_2
+        line_vals = {
+            "name": "OL/0001",
+            "product_id": self.product.id,
+            "qty": 1.0,
+            "price_unit": price,
+            "price_subtotal": price,
+            "price_subtotal_incl": price,
+        }
+        order = self.PosOrder.create({
+            "session_id": self.session.id,
+            "amount_tax": 0,
+            "amount_total": price,
+            "amount_paid": price,
+            "amount_return": 0,
+            "lines": [[0, False, line_vals]],
+        })
+        order.add_payment({
+            'amount': price_1,
+            'payment_date': fields.Date.today(),
+            'payment_name': "Demo",
+            'journal': journal_1.id,
+            })
+        if journal_2:
+            order.add_payment({
+                'amount': price_2,
+                'payment_date': fields.Date.today(),
+                'payment_name': "Demo",
+                'journal': journal_2.id,
+            })
+        order.action_pos_order_paid()
+        return order
+
+    def _change_payment(
+            self, order, journal_1, amount_1, journal_2=False, amount_2=0.0
+    ):
+        # Switch to check journal
+        wizard = self.PosPaymentChangeWizard.with_context(
+            active_id=order.id
+        ).create({})
+        self.PosPaymentChangeWizardNewLine.with_context(
+            active_id=order.id
+        ).create(
+            {
+                "wizard_id": wizard.id,
+                "new_journal_id": journal_1.id,
+                "amount": amount_1,
+            }
+        )
+        if journal_2:
+            self.PosPaymentChangeWizardNewLine.with_context(
+                active_id=order.id
+            ).create(
+                {
+                    "wizard_id": wizard.id,
+                    "new_journal_id": journal_2.id,
+                    "amount": amount_2,
+                }
+            )
+        wizard.button_change_payment()
+
+    # Test Section
+    def test_01_payment_change_policy_update(self):
+        self.pos_config.payment_change_policy = "update"
+
+        self._initialize_journals_open_session()
+        # Make a sale with 35 in cash journal and 65 in check
+        order = self._sale(self.cash_journal, 35, self.check_journal, 65)
+
+        order_qty = len(self.PosOrder.search([]))
+
+        with self.assertRaises(UserError):
+            # Should not work if total is not correct
+            self._change_payment(
+                order, self.cash_journal, 10, self.check_journal, 10)
+
+        self._change_payment(
+            order, self.cash_journal, 10, self.check_journal, 90)
+
+        # check Session
+        self.assertEqual(
+            self.cash_statement.balance_end,
+            10,
+            "Bad recompute of the balance for the statement cash",
+        )
+
+        self.assertEqual(
+            self.check_statement.balance_end,
+            90,
+            "Bad recompute of the balance for the statement check",
+        )
+
+        # Check Order quantity
+        self.assertEqual(
+            order_qty,
+            len(self.PosOrder.search([])),
+            "In 'Update' mode, changing payment should not create"
+            " other PoS Orders",
+        )
+
+    def test_02_payment_change_policy_refund(self):
+        self.pos_config.payment_change_policy = "refund"
+
+        self._initialize_journals_open_session()
+        # Make a sale with 35 in cash journal and 65 in check
+        order = self._sale(self.cash_journal, 35, self.check_journal, 65)
+
+        order_qty = len(self.PosOrder.search([]))
+
+        self._change_payment(
+            order, self.cash_journal, 50, self.check_journal, 50)
+
+        # Check Order quantity
+        self.assertEqual(
+            order_qty + 2,
+            len(self.PosOrder.search([])),
+            "In 'Refund' mode, changing payment should generate"
+            " two new PoS Orders",
+        )
--- a/pos_payment_change/views/view_pos_config.xml
+++ b/pos_payment_change/views/view_pos_config.xml
@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright (C) 2020-Today GRAP (http://www.grap.coop)
+@author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+-->
+
+<odoo>
+
+    <record id="view_pos_config_form" model="ir.ui.view">
+        <field name="model">pos.config</field>
+        <field name="inherit_id" ref="point_of_sale.pos_config_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//div[hasclass('o_settings_container')][2]"
+                position="inside">
+                <div class="col-12 col-lg-6 o_setting_box">
+                    <div class="o_setting_right_pane">
+                        <span class="o_form_label">Payment Change Policy</span>
+                        <div class="content-group mt16">
+                            <field name="payment_change_policy" colspan="4"
+                                nolabel="1"/>
+                        </div>
+                    </div>
+                </div>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>
--- a/pos_payment_change/views/view_pos_order.xml
+++ b/pos_payment_change/views/view_pos_order.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright (C) 2015-Today GRAP (http://www.grap.coop)
+@author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+-->
+
+<odoo>
+
+    <record id="view_pos_order_form" model="ir.ui.view">
+        <field name="model">pos.order</field>
+        <field name="inherit_id" ref="point_of_sale.view_pos_pos_form" />
+        <field name="arch" type="xml">
+            <button name="refund" position="before">
+                <button name="%(action_pos_payment_change_wizard)d"
+                    context="{'pos_session_id' : session_id}"
+                    string="Change Payments" type="action" states="paid,invoiced"/>
+            </button>
+        </field>
+    </record>
+</odoo>
--- a/pos_payment_change/wizards/init.py
+++ b/pos_payment_change/wizards/init.py
@ -0,0 +1,3 @@
+from . import pos_payment_change_wizard
+from . import pos_payment_change_wizard_new_line
+from . import pos_payment_change_wizard_old_line
--- a/pos_payment_change/wizards/pos_payment_change_wizard.py
+++ b/pos_payment_change/wizards/pos_payment_change_wizard.py
@ -0,0 +1,98 @@
+# Copyright (C) 2015-Today GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import _, api, fields, models
+from odoo.exceptions import Warning as UserError
+
+
+class PosPaymentChangeWizard(models.TransientModel):
+    _name = "pos.payment.change.wizard"
+    _description = "PoS Payment Change Wizard"
+
+    # Column Section
+    order_id = fields.Many2one(
+        comodel_name="pos.order", string="Order", readonly=True
+    )
+
+    old_line_ids = fields.One2many(
+        comodel_name="pos.payment.change.wizard.old.line",
+        inverse_name="wizard_id",
+        string="Old Payment Lines",
+        readonly=True,
+    )
+
+    new_line_ids = fields.One2many(
+        comodel_name="pos.payment.change.wizard.new.line",
+        inverse_name="wizard_id",
+        string="New Payment Lines",
+    )
+
+    amount_total = fields.Float(string="Total", readonly=True)
+
+    # View Section
+    @api.model
+    def default_get(self, fields):
+        PosOrder = self.env["pos.order"]
+        res = super().default_get(fields)
+        order = PosOrder.browse(self._context.get("active_id"))
+        old_lines_vals = []
+        for statement_line in order.statement_ids:
+            old_lines_vals.append((0, 0, {
+                "old_journal_id": statement_line.statement_id.journal_id.id,
+                "amount": statement_line.amount
+                }
+            ))
+        res.update({
+            "order_id": order.id,
+            "amount_total": order.amount_total,
+            "old_line_ids": old_lines_vals,
+        })
+        return res
+
+    # View section
+    @api.multi
+    def button_change_payment(self):
+        self.ensure_one()
+        order = self.order_id
+
+        # Check if the total is correct
+        total = sum(self.mapped("new_line_ids.amount"))
+        if total != self.amount_total:
+            raise UserError(
+                _(
+                    "Differences between the two values for the POS"
+                    " Order '%s':\n\n"
+                    " * Total of all the new payments %s;\n"
+                    " * Total of the POS Order %s;\n\n"
+                    "Please change the payments."
+                    % (order.name, total, order.amount_total)
+                )
+            )
+
+        # Change payment
+        new_payments = [{
+            "journal": line.new_journal_id.id,
+            "amount": line.amount,
+            "payment_date": fields.Date.context_today(self),
+        } for line in self.new_line_ids]
+
+        orders = order.change_payment(new_payments)
+
+        # Note. Because of the poor design of the closing session process
+        # in Odoo, we call _check_pos_session_balance() that sets
+        # balance_end_real with balance_end for "non cash" journals
+        if order.session_id.state == "closing_control":
+            order.session_id._check_pos_session_balance()
+
+        if len(orders) == 1:
+            # if policy is 'update', only close the pop up
+            action = {'type': 'ir.actions.act_window_close'}
+        else:
+            # otherwise (refund policy), displays the 3 orders
+            action = self.env.ref(
+                "point_of_sale.action_pos_pos_form"
+            ).read()[0]
+            action['domain'] = [('id', 'in', orders.ids)]
+
+        return action
--- a/pos_payment_change/wizards/pos_payment_change_wizard_new_line.py
+++ b/pos_payment_change/wizards/pos_payment_change_wizard_new_line.py
@ -0,0 +1,45 @@
+# Copyright (C) 2015 - Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import api, fields, models
+
+
+class PosPaymentChangeWizardLine(models.TransientModel):
+    _name = "pos.payment.change.wizard.new.line"
+    _description = "PoS Payment Change Wizard New Line"
+
+    wizard_id = fields.Many2one(
+        comodel_name="pos.payment.change.wizard", required=True,
+    )
+
+    new_journal_id = fields.Many2one(
+        comodel_name="account.journal",
+        string="Journal",
+        required=True,
+        domain=lambda s: s._domain_new_journal_id(),
+    )
+
+    amount = fields.Float(string="Amount", required=True)
+
+    @api.model
+    def _domain_new_journal_id(self):
+        PosOrder = self.env["pos.order"]
+        order = PosOrder.browse(self.env.context.get("active_id"))
+        return [("id", "in", order.mapped(
+            "session_id.statement_ids.journal_id").ids)]
+
+    # View Section
+    @api.model
+    def default_get(self, fields):
+        res = super().default_get(fields)
+        if "new_line_ids" not in self._context:
+            return res
+        balance = self._context.get("amount_total", 0.0)
+        for line in self.wizard_id.resolve_2many_commands(
+                "new_line_ids",
+                self._context["new_line_ids"],
+                fields=["amount"]):
+            balance -= line.get("amount")
+        res.update({'amount': balance})
+        return res
--- a/pos_payment_change/wizards/pos_payment_change_wizard_old_line.py
+++ b/pos_payment_change/wizards/pos_payment_change_wizard_old_line.py
@ -0,0 +1,23 @@
+# Copyright (C) 2015 - Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class PosPaymentChangeWizardOldLine(models.TransientModel):
+    _name = "pos.payment.change.wizard.old.line"
+    _description = "PoS Payment Change Wizard Old Line"
+
+    wizard_id = fields.Many2one(
+        comodel_name="pos.payment.change.wizard", required=True,
+    )
+
+    old_journal_id = fields.Many2one(
+        comodel_name="account.journal",
+        string="Journal",
+        required=True,
+        readonly=True,
+    )
+
+    amount = fields.Float(string="Amount", required=True, readonly=True)
--- a/pos_payment_change/wizards/view_pos_payment_change_wizard.xml
+++ b/pos_payment_change/wizards/view_pos_payment_change_wizard.xml
@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright (C) 2015-Today GRAP (http://www.grap.coop)
+@author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+-->
+
+<odoo>
+
+    <record id="view_pos_payment_change_wizard_form" model="ir.ui.view">
+        <field name="model">pos.payment.change.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group col="4">
+                    <field name="order_id" />
+                    <field name="amount_total" invisible="1"/>
+                    <field name="old_line_ids" colspan="4">
+                        <tree>
+                            <field name="old_journal_id"/>
+                            <field name="amount" sum="Total"/>
+                        </tree>
+                    </field>
+                    <newline />
+                    <field name="new_line_ids" colspan="4"
+                        context="{'new_line_ids': new_line_ids, 'amount_total': amount_total}">
+                        <tree editable="bottom">
+                            <field name="new_journal_id" options="{'no_open': True, 'no_create_edit': True}"/>
+                            <field name="amount" sum="Total"/>
+                        </tree>
+                    </field>
+                </group>
+                <footer>
+                    <button name="button_change_payment" string="Change Payments"
+                        type="object" class="oe_highlight"/>
+                    <button string="Cancel" class="oe_link" special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="action_pos_payment_change_wizard" model="ir.actions.act_window">
+        <field name="name">Change Payments</field>
+        <field name="res_model">pos.payment.change.wizard</field>
+        <field name="view_type">form</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+
+</odoo>