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[UPD] m2o_to_x2m: docstring recommends outdated usage #389

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Oct 28, 2024
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[UPD] m2o_to_x2m: docstring recommends outdated usage #389

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5 changes: 3 additions & 2 deletions openupgradelib/openupgrade.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1867,8 +1867,9 @@ def get_model2table(model):
def m2o_to_x2m(cr, model, table, field, source_field):
"""
Transform many2one relations into one2many or many2many.
Use rename_columns in your pre-migrate script to retain the column's old
value, then call m2o_to_x2m in your post-migrate script.
For openupgrade < 14.0, use rename_columns in your pre-migrate script
to retain the column's old value, then call m2o_to_x2m in your
post-migrate script.

WARNING: If converting to one2many, there can be data loss, because only
one inverse record can be mapped in a one2many, but you can have multiple
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