To make workflow transitions in OpenERP/Odoo ?
If you want to make workflow transitions in OpenERP(Odoo) follow the below mentioned code and paste it in your workflow_xml file:

<record id="trans_idea_draft_confirmed" model="workflow.transition"> 
<field name="act_from" ref="act_draft"/> 
<field name="act_to" ref="act_confirmed"/> 
<field name="signal">button_confirm</field> 
<field name="role_id" ref="idea_manager"/> 
<field name="condition">1 == 1</field> 
 </record 

Note-> act_from, act_to identifiers of the source and destination activities
signal ->name of a button of type workflow that triggers this transition
role_id ->reference to the role that user must have to trigger the transition
condition ->Python expression that must evaluate to True for transition to be triggered