How to set or update fields.function value of existing data ?

Question

Hello,

I just add a fields.function(_myfunc, .... , store=True) on one OpenERP V7 model. This instance allready has some value in database.

How can I force openERP to compute the value for this field ?
New data are ok (set when write method is launch) but for existing one nothing ...!

*Note*:

If a change store=True with store=False , my data are ok, but I need to add this field on search filters.

thanks for your help,

Henri-Maxime Ducoulombier · Accepted Answer

I recently came across this kind of problem (needed to update computed values) and I created a module to add 2 methods to the ORM (compute and compute_all).

You can find it here if you want, and if you ever get a chance to test if on Odoo 8+, let me know (I'm using OpenERP 7.0)

https://github.com/H-Max/odoo-orm-recompute

Hope this helps.

Antonio Antiun · Answer

You could remove the column from database, for example, for field 'margin' at sale.order model you could execute next SQL with psql:
your_database=> alter table *sale_order* drop column if exists *margin*;
Then update the addon in Configuration > Local modules
If you look at Odoo log file you will see one line like:
openerp.models: Storing computed values of *sale.order* fields *margin*

Ray Carnes · Answer

Export the model records, then import them.

This will trigger the write and the values for the functional field will be computed and stored.

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