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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-04-20 14:09:51 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-04-20 14:11:44 -0400 |
| commit | 4b9e2db51a7e40ff2c4212fe8476fe0c7ba21ca0 (patch) | |
| tree | 326cb26f0c267be96a23a20432f313b566045215 /lib/sqlalchemy/orm/loading.py | |
| parent | 3580e6ed33451505e2462ffcb1beaf96f851b011 (diff) | |
| download | sqlalchemy-4b9e2db51a7e40ff2c4212fe8476fe0c7ba21ca0.tar.gz | |
Allow immediateload to use_get for recursive call
Altered some of the behavior repaired in :ticket:`6232` where the
``immediateload`` loader strategy no longer goes into recursive loops; the
modification is that an eager load (joinedload, selectinload, or
subqueryload) from A->bs->B which then states ``immediateload`` for a
simple manytoone B->a->A that's in the identity map will populate the B->A,
so that this attribute is back-populated when the collection of A/A.bs are
loaded. This allows the objects to be functional when detached.
Fixes: #6301
Change-Id: I8505d851802c38ad8ad4e2fab9030f7c17089e9d
Diffstat (limited to 'lib/sqlalchemy/orm/loading.py')
| -rw-r--r-- | lib/sqlalchemy/orm/loading.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/loading.py b/lib/sqlalchemy/orm/loading.py index ea6d0f1fe..cd2ec8301 100644 --- a/lib/sqlalchemy/orm/loading.py +++ b/lib/sqlalchemy/orm/loading.py @@ -338,7 +338,9 @@ def get_from_identity(session, mapper, key, passive): return attributes.PASSIVE_NO_RESULT elif not passive & attributes.RELATED_OBJECT_OK: # this mode is used within a flush and the instance's - # expired state will be checked soon enough, if necessary + # expired state will be checked soon enough, if necessary. + # also used by immediateloader for a mutually-dependent + # o2m->m2m load, :ticket:`6301` return instance try: state._load_expired(state, passive) |