I would like to ask how to return an object form using a function that would be called on the workflow. Here is my code

class mrp_production(osv.osv_memory): _inherit = 'mrp.production'

def confirm_move(self, cr, uid, ids, context=None):
    obj_model = self.pool.get('ir.model.data')
    model_data_ids = obj_model.search(cr,uid,[('model','=','ir.ui.view'),('name','=','stock.move.tree')])
    return {
        'name': 'Stock Move',
        'view_type': 'form',
        'view_mode': 'tree',
        'res_model': 'stock.move',
        'view_id' : model_data_ids,
        'search_view_id' : 'stock.view_move_search',
        'context': {'search_default_ready':1},
        'type': 'ir.actions.act_window',
        'nodestroy': True,
        'target': 'new',
    }

mrp_production()

Whenever I call this function on the Workflow, no window pops out. I would like the Stock Moves action window to pop up after clicking the Confirm button when a product has been produced in the Manufacturing Orders

Any idea what I'm, doing wrong?