Raphael ColletandVincent Schippefilt
384fda2c2a
Merging both the memory of field values and suspended updates has
several advantages:
- avoid inconsistencies between cache and towrite
- cache updates can be made safer w.r.t. dirty flag
However, the dirty flag in cache does not go well with context-dependent
fields. When a context-dependent field is dirty in cache, the value to
store in the database is accessible through some context values. But
when the model is flushed, the context values on the current environment
may be different. When this happens, the method flush() fails to
retrieve the data to flush.
The proposed solution is to store the "dirty" value in cache under
conventional context values, and to retrieve them under the same
conventional context values to flush them. For instance, when storing
the value of a binary field, it will be stored once under the context
value `context.get('bin_size')`, and a second time under the context
value `None`. The flush implementation will then retrieve the value
using the context value `None`.
Translated fields are also problematic when a value is put in cache with
an environment where lang=False, and the value is retrieved with another
environment where lang=None. This issue is addressed by normalizing the
context key 'lang' to None when the context value is False.
Part-of: odoo/odoo#95325
Co-authored-by: Vincent Schippefilt <vsc@odoo.com>
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