move register from __init__ to tryton.cfg

__init__.py

@@ -1,39 +0,0 @@
-# This file is part of the sale_payment module for Tryton.
-# The COPYRIGHT file at the top level of this repository contains the full
-# copyright notices and license terms.
-from trytond.pool import Pool
-from . import device
-from . import sale
-from . import statement
-from . import user
-from . import configuration_statement
-
-
-def register():
-    Pool.register(
-        statement.Journal,
-        statement.Statement,
-        statement.Line,
-        statement.StatementLine,
-        statement.LinesInvoiceToPay,
-        device.SaleDevice,
-        user.User,
-        device.SaleDeviceStatementJournal,
-        sale.Sale,
-        sale.SalePaymentForm,
-        sale.ChangePaymentMethodForm,
-        statement.OpenStatementStart,
-        statement.OpenStatementDone,
-        statement.CloseStatementStart,
-        statement.CloseStatementDone,
-        statement.PayInvoiceSupplierStart,
-        configuration_statement.Configuration,
-        module='sale_payment', type_='model')
-    Pool.register(
-        sale.WizardSalePayment,
-        sale.ChangePaymentMethod,
-        sale.WizardSaleReconcile,
-        statement.OpenStatement,
-        statement.CloseStatement,
-        statement.PayInvoiceSupplier,
-        module='sale_payment', type_='wizard')

sale.py

@@ -40,8 +40,11 @@ class Sale(metaclass=PoolMeta):
         super(Sale, cls).__setup__()
         cls._buttons.update({
             'wizard_sale_payment': {
-                'invisible': Eval('state') == 'done',
+                'invisible': (Eval('state') == 'done') | (Eval(
-                'readonly': Not(Bool(Eval('lines'))),
+                    'residual_amount', 0) == 0),
+                'readonly': Not(Bool(Eval('lines'))) | (Eval(
+                    'residual_amount', 0) == 0),
+                'depends': ['state', 'residual_amount']
             },
             'wizard_change_payment_method': {},
                 })

tryton.cfg

@@ -1,5 +1,5 @@
 [tryton]
-version=7.6.0
+version=8.0.0
 depends:
     account_statement
     sale_shop
@@ -9,3 +9,31 @@ xml:
     sale.xml
     user.xml
     message.xml
+
+[register]
+model:
+    statement.Journal
+    statement.Statement
+    statement.Line
+    statement.StatementLine
+    statement.LinesInvoiceToPay
+    device.SaleDevice
+    user.User
+    device.SaleDeviceStatementJournal
+    sale.Sale
+    sale.SalePaymentForm
+    sale.ChangePaymentMethodForm
+    statement.OpenStatementStart
+    statement.OpenStatementDone
+    statement.CloseStatementStart
+    statement.CloseStatementDone
+    statement.PayInvoiceSupplierStart
+    configuration_statement.Configuration
+
+wizards:
+    sale.WizardSalePayment
+    sale.ChangePaymentMethod
+    sale.WizardSaleReconcile
+    statement.OpenStatement
+    statement.CloseStatement
+    statement.PayInvoiceSupplier