Hello Gaurav,

There is already contract state button in the vehicle form view and you can also see all the related contract with particular vehicles.

Thanks,

Thanks Jignesh,

Your solution solved my issue. I found one more solution.

def _get_vehicles(self, cr, uid, ids, fields, arg, context=None):

res = {}

#vehicle = self.env['fleet.vehicle']

for _obj in self.browse(cr, uid, ids, context=context):

#('vehicle_id','=', self.vehicle_id)

_orders = self.pool.get('fleet.vehicle.log.contract').search(cr, uid, [('vehicle_id','=',context.get('active_id', False))], context=context)

res[_obj.id] =_orders

return res

'vehicle_ids' : fields.function(_get_vehicles, string="Vehicles", type="many2many", relation='fleet.vehicle'),

<field name="vehicle_ids" nolabel="1" >

But loop is getting all the contracts not for a particular vehicle. Can you tell me, what I am missing?