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[FIX] orm: do not drop foreign keys of transient models 

During the update of a module, the existing foreign keys are dropped if they have a different ondelete_rule than the one specified on the field.
The foreign keys for many2one transiant -> non-transiant are created with cascade rule by default (see `m2o_add_foreign_key_checked` method) so the check needs to be realised in the same conditions.
This commit is contained in:
Martin Trigaux 2014-09-15 15:24:43 +02:00
parent 42680c9906
commit 32f5168974
1 changed files with 3 additions and 0 deletions
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3
openerp/osv/orm.py
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@ -3016,6 +3016,9 @@ class BaseModel(object):
if len(constraints) == 1:
# Is it the right constraint?
cons, = constraints
if self.is_transient() and not dest_model.is_transient():
# transient foreign keys are added as cascade by default
ondelete = ondelete or 'cascade'
if cons['ondelete_rule'] != POSTGRES_CONFDELTYPES.get((ondelete or 'set null').upper(), 'a')\
or cons['foreign_table'] != dest_model._table:
# Wrong FK: drop it and recreate