# Write different field values to records
**URL:** https://discuss.tryton.org/t/write-different-field-values-to-records/4866
**Category:** Developer
**Created:** [December 16, 2021, 6:40pm UTC](https://discuss.tryton.org/t/write-different-field-values-to-records/4866 "2021-12-16T18:40:20Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@locx](https://discuss.tryton.org/u/locx)
#### Post date: [December 16, 2021, 6:40pm UTC](https://discuss.tryton.org/t/write-different-field-values-to-records/4866/1 "2021-12-16T18:40:20Z")
Suppose I have two shipments (in a list called `shipments_out`), and I want to assign the **same** `effective_date` to both of them. I do this and it works:
```auto
Shipment_Out = Model.get('stock.shipment.out')
Shipment_Out.write( shipments_out[:2] , {'effective_date': datetime.date(2021,11,29) } , context = config.context )
```
But if I want to set **different** effective dates for the two shipments, how do I do it using the write method?
---
### Author:  [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [December 16, 2021, 10:17pm UTC](https://discuss.tryton.org/t/write-different-field-values-to-records/4866/2 "2021-12-16T22:17:58Z")
I guess you are using proteus.
The [`ModelStorage.write`](https://docs.tryton.org/projects/server/en/latest/ref/models/models.html#trytond.model.ModelStorage.write) method can take as many as argument as needed. So you can call it like:
`ShipmentOut.write(shipments[0:1], {'effective_date': ...}, shipments[1:2], {'effective_date': ...}, config.context)`
But also you can use the oriented-object design with:
```auto
shipments[0].effective_date = ...
shipments[1].effective_date = ...
ShipmentOut.save(shipments)
```
---
### Author:  [@system](https://discuss.tryton.org/u/system)
#### Post date: [January 15, 2022, 10:18pm UTC](https://discuss.tryton.org/t/write-different-field-values-to-records/4866/3 "2022-01-15T22:18:01Z")
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