I'm using odoo 8 and already added new state "On Delivery" to stock.picking model.
How can i change the state from the Default state "Ready to Transfer" to my new state "On Delivery" ?
Already try using self.write(cr,uid,ids,{'state':'on_delivery'}), not working.
write method (inherit stock.picking):
| def do_delivery(self, cr, uid, ids, context=None): 
 self.write(cr, uid, ids, {'state':'on_delivery'}) #change state to On Delivery in Odoo 
 return True | 
Also modified the existing workflow, not working as well
workflow approach(sale.order.basic):
| <?xml version="1.0" encoding="utf-8"?> 
 <openerp> 
 <data> 
 <record id="act_delivery" model="workflow.activity"> 
 <field name="wkf_id" ref="sale.wkf_sale"/> 
 <field name="name">OnDelivery</field> 
 <field name="kind">function</field> 
 <field name="action">do_delivery()</field> 
 
 </record> 
 
 <record id="trans_ship_delivery" model="workflow.transition"> 
 <field name="act_from" ref="sale.act_ship"/> 
 <field name="act_to" ref="act_delivery"/> 
 <field name="signal">do_delivery_button</field> 
 </record> 
 
 <record id="trans_ship_delivered" model="workflow.transition"> 
 <field name="act_from" ref="act_delivery"/> 
 <field name="act_to" ref="sale.act_ship_end"/> 
 </record> 
 </data> 
 </openerp> | 
Any helps?
Thanks in advance.
 
                        
I think that the correct change in the workflow would give a success result. Pls provide us with the changes you did in the workflow so one can lend a hand
Updated the questions. Include write method and workflow.
any news?