add field for last product added date

lacagette_addons/lacagette_shelfs/models/product_shelfs.py

@@ -14,6 +14,7 @@ class productShelfs(models.Model):
     last_inventory_id = fields.Integer(string="Last inventory ID", default=0)
     last_inv_delta_percentage = fields.Float(string="Last Inventory Quantity Delta Percentage", digits=(10,2))
     last_inv_losses_percentage = fields.Float(string="Last Inventory Losses Percentage", digits=(10,2))
+    date_last_product_added = fields.Date(string="Date of last product added to shelf", default="0001-01-01")
     _sql_constraints = [
                          ('unique_name', 'unique(name)', 'Name must be unique !'),
                          ('unique_order', 'unique(sort_order)', 'Num must be unique !')