Rémy Voet (ryv)
cdebf336a5
The `_read_group` was designed to be used by the web client to
efficiently compute aggregations grouped by one or more fields.
However, more and more developers have been using it from the backend
to make computations more efficient (avoid doing the aggregation
in Python). Unfortunately, the API was designed for the web client,
which added a lot of boilerplate when used in the Python (list of
dict with misleading key name choices).
`_read_group` was created to improve the performance of read_group
for backend use (4ef0c00b4b), but didn't
change the API and based the implementation on read_group itself.
Rewrite `_read_group` from scratch with a new API to make it easier
to use from the backend (see the method documentation). Also, split
the method to make it easy to override and add custom behavior.
Part-of: odoo/odoo#110737
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