migrate field bran for report move by product

from module stock_co to product_reference

stock.py

@@ -112,7 +112,6 @@ class MoveByProductStart(ModelView):
     categories = fields.Many2Many('product.category', None, None, 'Categories')
     company = fields.Many2One('company.company', 'Company',
             required=True)
-    brand = fields.Many2One('product.brand', 'Brand')
     party = fields.Many2One('party.party', 'Party')
     shipment_draft = fields.Boolean('Shipment Draft')
     start_time = fields.Time('Start Time',)
@@ -159,7 +158,7 @@ class PrintMoveByProduct(Wizard):
             from_location_id = self.start.from_location.id
         if self.start.categories:
             category_ids = [acc.id for acc in self.start.categories]
-        if self.start.brand:
+        if hasattr(self.start, 'brand') and self.start.brand:
             brand_id = self.start.brand.id
         if self.start.party:
             party_id = self.start.party.id
@@ -200,7 +199,6 @@ class MoveByProduct(Report):
         Move = pool.get('stock.move')
         Location = pool.get('stock.location')
         Party = pool.get('party.party')
-        Brand = pool.get('product.brand')
         Category = pool.get('product.template-product.category')
         company = Company(data['company'])
         from_location = None
@@ -259,6 +257,7 @@ class MoveByProduct(Report):
                     ('product.template.account_category', 'in', data['categories'])
                 )
         if data['brand']:
+            Brand = pool.get('product.brand')
             dom_products.append(
                 ('product.template.brand', '=', data['brand']),
             )

view/move_by_product_start_form.xml

@@ -18,8 +18,6 @@ this repository contains the full copyright notices and license terms. -->
     <field name="from_location"/>
     <label name="to_location"/>
     <field name="to_location"/>
-    <label name="brand"/>
-    <field name="brand"/>
     <label name="shipment_draft"/>
     <field name="shipment_draft"/>
     <label name="product"/>