diff --git a/addons/product/pricelist.py b/addons/product/pricelist.py
index 1f53b902761..a734348d8ab 100644
--- a/addons/product/pricelist.py
+++ b/addons/product/pricelist.py
@@ -404,6 +404,7 @@ class product_pricelist_version(osv.osv):
         'company_id': fields.related('pricelist_id','company_id',type='many2one',
             readonly=True, relation='res.company', string='Company', store={
                 'product.pricelist': (_get_product_pricelist, ['company_id'], 20),
+                'product.pricelist.version': (lambda self, cr, uid, ids, c=None: ids, ['pricelist_id'], 20),
             })
     }
     _defaults = {
@@ -505,6 +506,13 @@ class product_pricelist_item(osv.osv):
                     result.add(item_id.id)
         return list(result)
 
+    def _get_product_pricelist_version(self, cr, uid, ids, context=None):
+        result = set()
+        for version in self.pool['product.pricelist.version'].browse(cr, uid, ids, context=context):
+            for item_id in version.items_id:
+                result.add(item_id.id)
+        return list(result)
+
     _columns = {
         'name': fields.char('Rule Name', help="Explicit rule name for this pricelist line."),
         'price_version_id': fields.many2one('product.pricelist.version', 'Price List Version', required=True, select=True, ondelete='cascade'),
@@ -536,6 +544,8 @@ class product_pricelist_item(osv.osv):
         'company_id': fields.related('price_version_id','company_id',type='many2one',
             readonly=True, relation='res.company', string='Company', store={
                 'product.pricelist': (_get_product_pricelist, ['company_id'], 30),
+                'product.pricelist.version': (_get_product_pricelist_version, ['pricelist_id'], 30),
+                'product.pricelist.item': (lambda self, cr, uid, ids, c=None: ids, ['price_version_id'], 30),
             })
     }
 
diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 7f16023cad4..3cbdcade93e 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -928,6 +928,7 @@ class sale_order_line(osv.osv):
         'salesman_id':fields.related('order_id', 'user_id', type='many2one', relation='res.users', store=True, string='Salesperson'),
         'company_id': fields.related('order_id', 'company_id', type='many2one', relation='res.company', string='Company', store={
             'sale.order': (_get_sale_order, ['company_id'], 20),
+            'sale.order.line': (lambda self, cr, uid, ids, c=None: ids, ['order_id'], 20),
         }, readonly=True),
         'delay': fields.float('Delivery Lead Time', required=True, help="Number of days between the order confirmation and the shipping of the products to the customer", readonly=True, states={'draft': [('readonly', False)]}),
         'procurement_ids': fields.one2many('procurement.order', 'sale_line_id', 'Procurements'),
diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 37658f14383..53693db61f8 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -4030,7 +4030,6 @@ class stock_package(osv.osv):
         context = dict(context or {}, active_ids=ids)
         return self.pool.get("report").get_action(cr, uid, ids, 'stock.report_package_barcode_small', context=context)
     
-    
     def unpack(self, cr, uid, ids, context=None):
         quant_obj = self.pool.get('stock.quant')
         for package in self.browse(cr, uid, ids, context=context):
@@ -4038,8 +4037,6 @@ class stock_package(osv.osv):
             quant_obj.write(cr, SUPERUSER_ID, quant_ids, {'package_id': package.parent_id.id or False}, context=context)
             children_package_ids = [child_package.id for child_package in package.children_ids]
             self.write(cr, uid, children_package_ids, {'parent_id': package.parent_id.id or False}, context=context)
-        #delete current package since it contains nothing anymore
-        self.unlink(cr, uid, ids, context=context)
         return self.pool.get('ir.actions.act_window').for_xml_id(cr, uid, 'stock', 'action_package_view', context=context)
 
     def get_content(self, cr, uid, ids, context=None):
diff --git a/addons/web_gantt/static/src/js/gantt.js b/addons/web_gantt/static/src/js/gantt.js
index 47692571f4c..fe9cfdf23d4 100644
--- a/addons/web_gantt/static/src/js/gantt.js
+++ b/addons/web_gantt/static/src/js/gantt.js
@@ -84,7 +84,7 @@ instance.web_gantt.GanttView = instance.web.View.extend({
         if (group_bys.length == 0) {
             group_bys = ["_pseudo_group_by"];
             _.each(tasks, function(el) {
-                el._pseudo_group_by = "Gantt View";
+                el._pseudo_group_by = _t("Gantt View");
             });
             this.fields._pseudo_group_by = {type: "string"};
         }
diff --git a/openerp/models.py b/openerp/models.py
index b5273d466b8..b15276eaf46 100644
--- a/openerp/models.py
+++ b/openerp/models.py
@@ -740,8 +740,11 @@ class BaseModel(object):
         cls = type(self)
         methods = []
         for attr, func in getmembers(cls, is_constraint):
-            if not all(name in cls._fields for name in func._constrains):
-                _logger.warning("@constrains%r parameters must be field names", func._constrains)
+            for name in func._constrains:
+                if name not in cls._fields:
+                    _logger.warning("method %s.%s: @constrains parameter %r is not a field name", cls._name, attr, name)
+                if not cls._fields[name].store:
+                    _logger.warning("method %s.%s: @constrains parameter %r is not stored", cls._name, attr, name)
             methods.append(func)
 
         # optimization: memoize result on cls, it will not be recomputed