diff options
Diffstat (limited to 'lib/sqlalchemy')
| -rw-r--r-- | lib/sqlalchemy/orm/query.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/query.py b/lib/sqlalchemy/orm/query.py index f74fd44bb..cb712c94b 100644 --- a/lib/sqlalchemy/orm/query.py +++ b/lib/sqlalchemy/orm/query.py @@ -3099,6 +3099,11 @@ class Query(object): mappings unless you have taken the additional steps to make this feasible**. + * The polymorphic identity WHERE criteria is **not** included + for single- or + joined- table updates - this must be added **manually** even + for single table inheritance. + * The method does **not** offer in-Python cascading of relationships - it is assumed that ON DELETE CASCADE/SET NULL/etc. is configured for any foreign key references @@ -3256,6 +3261,11 @@ class Query(object): filter(Employee.name == 'dilbert').\\ update({"engineer_type": "programmer"}) + * The polymorphic identity WHERE criteria is **not** included + for single- or + joined- table updates - this must be added **manually**, even + for single table inheritance. + * The :meth:`.MapperEvents.before_update` and :meth:`.MapperEvents.after_update` events **are not invoked from this method**. Instead, the |