Shop taxes

shop.py

@@ -69,6 +69,7 @@ class PurchaseShop(ModelSQL, ModelView):
             )
     partys = fields.Many2Many('purchase.shop_party', 'shop', 'party',
                          'Partys')
+    tax = fields.Many2One('account.tax', 'Tax')
 
     @classmethod
     def __register__(cls, module_name):

tryton.cfg

@@ -5,6 +5,7 @@ depends:
     res
     purchase_price_list
     analytic_purchase
+    account
 xml:
     shop.xml
     purchase.xml

view/purchase_shop_form.xml

@@ -16,6 +16,8 @@ The COPYRIGHT file at the top level of this repository contains the full copyrig
     <field name="analytic_root"/>
     <label name="analytic_account"/>
     <field name="analytic_account"/>
+    <label name="tax"/>
+    <field name="tax"/>
     <notebook colspan="4">
         <page string="General" id="general">
             <label name="purchase_sequence"/>