create view 'sale.create.subscription'

__init__.py

@@ -11,12 +11,12 @@ def register():
         purchase.Purchase,
         purchase.Line,
         sale.SaleLine,
+        sale.CreateSubscriptionStart,
         equipment.OpticalEquipment,
         configuration_equipment.Configuration,
         subscription.Subscription,
         subscription.SubscriptionEquipment,
         module='optical_equipment', type_='model')
     Pool.register(
-        sale.CreateSubscriptionStart,
         sale.CreateSubscription,
-        module='sale', type_='wizard')
+        module='optical_equipment', type_='wizard')

sale.py

@@ -2,13 +2,14 @@ from trytond.pool import Pool, PoolMeta
 from trytond.model import ModelView, ModelSQL, fields
 from trytond.pyson import Eval, Bool, If
 from trytond.transaction import Transaction
-
+    
 from trytond.wizard import (
     Button, StateAction, StateTransition, StateView, Wizard)
 
+
 class CreateSubscriptionStart(ModelView):
     'Create Subscription Start'
-    __name__ = 'sale.sale.subscription.start'
+    __name__ = 'sale.create.subscription.start'
 
     start_date = fields.Date("Start Date", required=True)
     end_date = fields.Date("End Date", required=True)
@@ -19,16 +20,14 @@ class CreateSubscriptionStart(ModelView):
 
 class CreateSubscription(Wizard):
     'Create Subscription'
-    __name__ = 'sale.sale.subscription'
+    __name__ = 'sale.create.subscription'
 
-    start = StateView('sale.sale.subscription.start',
-                      'sale.create_subscription_view_form',[
-                          Button('Cancel', 'cancel', 'tryton-cancel'),
+    start = StateView('sale.create.subscription.start',
+                      'optical_equipment.create_subscription_view_form',[
+                          Button('Cancel', 'end', 'tryton-cancel'),
                           Button('Create', 'create', 'tryton-ok', default=True),
                       ])
 
-    
-    
 class SaleLine(metaclass=PoolMeta):
     'SaleLine'
     __name__ = 'sale.line'
@@ -110,5 +109,3 @@ class SaleLine(metaclass=PoolMeta):
             ('//page[@id="equipment"]', 'states', {
                     'invisible': ~Eval('product_equipment', True),
                     })]
-
-

sale.xml

@@ -7,13 +7,13 @@
 	<field name="name">sale_line_form</field>
     </record>
     <record model="ir.ui.view" id="create_subscription_view_form">
-	<field name="model">sale.sale.subscription.start</field>
+	<field name="model">sale.create.subscription.start</field>
 	<field name="type">form</field>
 	<field name="name">create_subscription_form</field>
     </record>
     <record model="ir.action.wizard" id="create_subscription">
 	<field name="name">Subscription</field>
-        <field name="wiz_name">sale.sale.subscription</field>
+        <field name="wiz_name">sale.create.subscription</field>
         <field name="model">sale.sale</field>
     </record>
     <record model="ir.action.keyword" id="create_subscription_keyword">

subscription.py

@@ -4,6 +4,7 @@ from trytond.model import (
 from trytond.modules.company.model import set_employee
 from trytond.exceptions import UserError
 
+
 class Subscription(metaclass=PoolMeta):
     __name__ = 'sale.subscription'
 
@@ -28,7 +29,7 @@ class SubscriptionEquipment(ModelSQL):
     subscription = fields.Many2One('sale.subscription', 'Subscription', select=True)
     equipment = fields.Many2One('optical_equipment.equipment', 'Equipment', select=True)
 
-
+    
 class Line(metaclass=PoolMeta):
     __name__ = 'sale.subscriptioin.line'
     

view/create_subscription_form.xml

@@ -9,6 +9,8 @@ this repository contains the full copyright notices and license terms. -->
             id="create_subscription" colspan="2"
             yalign="0.0" xalign="0.0" xexpand="1"/>
         <label name="start_date"/>
+	<field name="start_date"/>
+	<label name="end_date"/>
         <field name="end_date"/>
         <label name="invoice_recurrence"/>
         <field name="invoice_recurrence"/>