Override default field mappings Ex: Delivery Note -> Sales Invoice

[Jev Björsell]

Hi All,

What's the best practice in V4 to customize field mappings between Doctype transitions?

My use case is as follows;

A shipment is made in 1 Jan, a Delivery Note is created with Posting Date of Jan 1.

On the 3rd of Jan, billing is processed. ERP Billing user goes to the Delivery Note and runs the "Make Invoice" action.

System produces a new Sales Invoice with Posting Date set to 3rd of January. I want the Posting Date to be mapped from the Delivery Note, Sales Invoice Posting Date should be 1 Jan.

Thanks!

-Jev

[Rushabh Mehta]

On 20-Jul-2014, at 3:34 am, Jev Björsell <ebjo...@gmail.com> wrote:

A shipment is made in 1 Jan, a Delivery Note is created with Posting Date of Jan 1.

On the 3rd of Jan, billing is processed. ERP Billing user goes to the Delivery Note and runs the "Make Invoice" action.

System produces a new Sales Invoice with Posting Date set to 3rd of January. I want the Posting Date to be mapped from the Delivery Note, Sales Invoice Posting Date should be 1 Jan.

There are no hooks around mappings right now. One temp solution would be to make a "Draft" invoice on the day of shipment and submit it later.

There could be a hook here though:

https://github.com/frappe/frappe/blob/develop/frappe/model/mapper.py#L103

`target_doc.run_method('after_mapping', source_doc)`

Then add a hook in `doc_events`

You want to add this / test it and send a PR ?

Thanks!

-Jev

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[Jev Björsell]

I will try find time to add that hook. :)

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