erp5_production_planning: set default value to 0

bt5/erp5_production_planning/SkinTemplateItem/portal_skins/erp5_production_planning/ProductionPlanning_view/matrixbox_quantity.xml

@@ -275,7 +275,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: "error" if (cell and (not cell.getSpecialise() or (cell.getSpecialiseValue().getQuantity() != cell.getQuantity()))) else ""</string> </value>
+            <value> <string>python: "error" if (cell and ((not cell.getSpecialise() and cell.getQuantity()) or (cell.getSpecialiseValue().getQuantity() != cell.getQuantity()))) else ""</string> </value>
         </item>
       </dictionary>
     </pickle>
@@ -288,7 +288,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: cell.getQuantity() or 0 if cell else \'\'</string> </value>
+            <value> <string>python: cell.getQuantity() or 0 if cell else 0</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_production_planning/WorkflowTemplateItem/portal_workflow/production_planning_interaction_workflow/scripts/ProductionPlanning_applyProductionPlanningChanges.py

@@ -18,7 +18,7 @@ for cell_keys in production_planning.getCellKeys():
             production_order_line,
             "edit_action",
             comment='Modified by production planning %s' % production_planning.getRelativeUrl())
-      else:
+      elif cell.getQuantity():
         # It's a new cell, create producton order&production order line
         [resource_uid,start_date] = cell_keys
         # Check if it existes a production order for the date