Construct a "domain=" across many2many fields

Question

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domain = ('foofield', 'operator', barvalue)

In my case barvalue *IS* a list.
I want foofield *to be* a list. More specifically, I want foofield to contain the values (as a list) of the *many2many field* 'foofield'
I want operator do define foofield as an *entire subset* of barvalue. (best guess: 'in')
I know this is probably not possible, so workaround, conceptual help would be n

Serpent Consulting Services Pvt. Ltd. · Accepted Answer

David,

The domain you wrote should simply work because the [(field, operator, value)] in your case is [] in [] and for many2many fields, this should suffice.

Do you face any errors, warnings?

Thanks.

David Arnold · Answer

Actually, https://github.com/odoo/odoo/blob/1f20f61ab4f6acf79f4db6ba9a17c1282014ef5f/openerp/osv/expression.py#L932-L971 supports your answer very well.

Errors might raise from different sources while debugging. I somehow was prone to believe this doesn't work because documentation (https://doc.openerp.com/v6.0/developer/2_5_Objects_Fields_Methods/methods.html/) states:

field_name must be a valid name of field of the object model, possibly following many-to-one relationships using dot-notation

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