trytond-patches/sale_supply_supply_on_sale_multivalue.diff

diff -r a247523ff3db trytond/trytond/modules/sale_supply/__init__.py
--- a/trytond/trytond/modules/sale_supply/__init__.py	Mon May 06 15:14:01 2019 +0200
+++ b/trytond/trytond/modules/sale_supply/__init__.py	Mon May 13 11:30:56 2019 +0200
@@ -16,6 +16,7 @@
         purchase.Purchase,
         stock.ShipmentIn,
         product.Template,
+        product.TemplateSupplyOnSale,
         product.Product,
         module='sale_supply', type_='model')
     Pool.register(
diff -r a247523ff3db trytond/trytond/modules/sale_supply/product.py
--- a/trytond/trytond/modules/sale_supply/product.py	Mon May 06 15:14:01 2019 +0200
+++ b/trytond/trytond/modules/sale_supply/product.py	Mon May 13 11:29:50 2019 +0200
@@ -1,18 +1,35 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-from trytond.model import fields
-from trytond.pool import PoolMeta
+from trytond.model import fields, ModelSQL
+from trytond.pool import Pool, PoolMeta
+from trytond.modules.company.model import (CompanyMultiValueMixin,
+    CompanyValueMixin)
 from trytond.pyson import Eval
 
+supply_on_sale = fields.Boolean('Supply On Sale', states={
+        'invisible': ~Eval('purchasable') | ~Eval('salable'),
+        }, depends=['purchasable', 'salable'])
 
-class Template(metaclass=PoolMeta):
+class Template(CompanyMultiValueMixin, metaclass=PoolMeta):
     __name__ = 'product.template'
 
-    supply_on_sale = fields.Boolean('Supply On Sale',
-        states={
-            'invisible': ~Eval('purchasable') | ~Eval('salable'),
-            },
-        depends=['purchasable', 'salable'])
+    supply_on_sale = fields.MultiValue(supply_on_sale)
+    supply_on_sales = fields.One2Many(
+        'product.template.supply_on_sale', 'template', "Supply on sales")
+
+    @classmethod
+    def multivalue_model(cls, field):
+        pool = Pool()
+        if field == 'supply_on_sale':
+            return pool.get('product.template.supply_on_sale')
+        return super(Template, cls).multivalue_model(field)
+
+
+class TemplateSupplyOnSale(ModelSQL, CompanyValueMixin):
+    "Template Supply On Sale"
+    __name__ = 'product.template.supply_on_sale'
+    template = fields.Many2One('product.template', 'Product Template')
+    supply_on_sale = supply_on_sale
 
 
 class Product(metaclass=PoolMeta):