[FIX] sale, sale_layout: sale_layout_cat_id field

The field 'sale_layout_cat_id' is installed  by the sale_layout module.
Introduced by bde7f4dad1

opw:656981
Closes #9157

addons/sale/sale.py

@@ -675,7 +675,6 @@ class SaleOrderLine(models.Model):
             'product_id': self.product_id.id or False,
             'invoice_line_tax_ids': [(6, 0, self.tax_id.ids)],
             'account_analytic_id': self.order_id.project_id.id,
-            'sale_layout_cat_id': self.sale_layout_cat_id.id,
         }
         return res
 

addons/sale_layout/models/sale_layout.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from openerp import api
 from openerp.osv import osv, fields
 from itertools import groupby
 
@@ -113,3 +114,15 @@ class SaleOrderLine(osv.Model):
         if line.categ_sequence:
             invoice_vals['categ_sequence'] = line.categ_sequence
         return invoice_vals
+
+    @api.multi
+    def _prepare_invoice_line(self, qty):
+        """
+        Prepare the dict of values to create the new invoice line for a sales order line.
+
+        :param qty: float quantity to invoice
+        """
+        res = super(SaleOrderLine, self)._prepare_invoice_line(qty)
+        if self.sale_layout_cat_id:
+            res['sale_layout_cat_id'] = self.sale_layout_cat_id.id
+        return res