If you want transfer stock in Product module you have to follow the following code in your .py file.

class stock_immediate_transfer(models.TransientModel):

_inherit = 'stock.immediate.transfer'



@api.multi

def process(self):

self.ensure_one()

# If still in draft => confirm and assign

if self.pick_id.state == 'draft':

self.pick_id.action_confirm()

if self.pick_id.state != 'assigned':

self.pick_id.action_assign()

if self.pick_id.state != 'assigned':

raise UserError(_("Could not reserve all requested products. Please use the \'Mark as Todo\' button to handle the reservation manually."))

for pack in self.pick_id.pack_operation_ids:

if pack.product_qty > 0:

pack.write({'qty_done': pack.product_qty})

else:

pack.unlink()

self.pick_id.do_transfer()

in_rent_list = []

in_type_id = self.pool.get('stock.picking.type').search(self.env.cr,self.env.uid,[('name','=','Receipts')])

if self.pick_id:

if self.pick_id.picking_type_id.id == in_type_id[0]:

in_rent_list = self.pool.get('rent.order').search(self.env.cr,self.env.uid,[('in_picking_id','=',self.pick_id.id)])



else:

rent_list = self.pool.get('rent.order').search(self.env.cr,self.env.uid,[('out_picking_id','=',self.pick_id.id)])

if rent_list:

self.pool.get('rent.order').action_ongoing(self.env.cr,self.env.uid,rent_list[0])

if in_rent_list:

self.pool.get('rent.order').write(self.env.cr,self.env.uid,in_rent_list[0],{'state':'done'})



class account_invoice_line(osv.Model):

_inherit = 'account.invoice.line'

_columns = {

'maintenance_Plan': fields.float('Mentinance Price', digits_compute= dp.get_precision('Mentinance Price')),

}



account_invoice_line()