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python Programming Glossary: session.addSQLAlchemy: Relation table with composite primary key http://stackoverflow.com/questions/10525797/sqlalchemy-relation-table-with-composite-primary-key ac 21 workflow w_2 a_22 Action name ac 22 workflow w_2 session.add w_1 session.add w_2 a_22.parents.append a_21 session.commit.. w_2 a_22 Action name ac 22 workflow w_2 session.add w_1 session.add w_2 a_22.parents.append a_21 session.commit session.expunge_all..
sqlalchemy cursor error during yield_per http://stackoverflow.com/questions/12233115/sqlalchemy-cursor-error-during-yield-per sessionmaker_ def foo item # DO something to the item session.add item session.commit def main for item in session.query Item..
How to map one class against multiple tables with SQLAlchemy? http://stackoverflow.com/questions/1300433/how-to-map-one-class-against-multiple-tables-with-sqlalchemy to do this in SQLAlchemy item Item 'item1' item.foo 'bar' session.add item session.commit item1 session.query Item .filter_by handle..
sqlalchemy easy way to insert or update? http://stackoverflow.com/questions/1382469/sqlalchemy-easy-way-to-insert-or-update is not None f2.val f1.val # update # XXX do we need to do session.add f2 # or at least keep f2 alive until after the commit else session.add.. f2 # or at least keep f2 alive until after the commit else session.add f1 # insert session.commit Is there an easier way python sqlalchemy..
http://stackoverflow.com/questions/1738250/pylons-and-memcached with the values of the object session SQLA_SESSION session.add self session.commit session.refresh self session.close def refresh.. with the values of the database session SQLA_SESSION session.add self session.refresh self session.close def delete self Delete.. Delete the object from the database session SQLA_SESSION session.add self session.delete self session.commit session.close class..
Convert sqlalchemy row object to python dict http://stackoverflow.com/questions/1958219/convert-sqlalchemy-row-object-to-python-dict sessionmaker bind engine session Session user1 User anurag session.add user1 session.commit # uncommenting next line throws exception..
Does SQLAlchemy have an equivalent of Django's get_or_create? http://stackoverflow.com/questions/2546207/does-sqlalchemy-have-an-equivalent-of-djangos-get-or-create return instrument else instrument Instrument serial_number session.add instrument return instrument python django sqlalchemy share..
Bulk insert with SQLAlchemy ORM http://stackoverflow.com/questions/3659142/bulk-insert-with-sqlalchemy-orm and is mapped to a Foo class x Foo bar 1 print x.id # None session.add x session.flush # BEGIN # INSERT INTO foo bar VALUES 1 # COMMIT.. instance . An example SQL omitted x Foo bar 1 session.add x session.commit print x.bar # 1 foo.update .execute bar 42..
SQLAlchemy: What's the difference between flush() and commit()? http://stackoverflow.com/questions/4201455/sqlalchemy-whats-the-difference-between-flush-and-commit . The session object registers transaction operations with session.add but doesn't yet communicate them to the database until session.flush..
http://stackoverflow.com/questions/5033547/sqlachemy-cascade-delete parent.children.append Child parent.children.append Child session.add parent session.commit print Before delete children 0 .format..
SQLAlchemy classes across files http://stackoverflow.com/questions/7478403/sqlalchemy-classes-across-files b1 a.Bs.append b2 a.Cs.append c1 a.Cs.append c2 session.add a session.commit The above gives the error sqlalchemy.exc.NoReferencedTableError.. b1 a1.Bs.append b2 a1.Cs.append c1 a1.Cs.append c2 session.add a1 session.commit Works on my machine python main.py echo 0..
I need a sample of python unit testing sqlalchemy model with nose http://stackoverflow.com/questions/833626/i-need-a-sample-of-python-unit-testing-sqlalchemy-model-with-nose session.query model.SomeObj .all eq_ 0 len instances session.add model.SomeObj session.flush # ... share improve this answer..
How to integrate SQLAlchemy and a subclassed Numpy.ndarray smoothly and in a pythonic way? http://stackoverflow.com/questions/8940802/how-to-integrate-sqlalchemy-and-a-subclassed-numpy-ndarray-smoothly-and-in-a-pyt c1.dto_numpy_objects mn1._dto mn2._dto # not a good ui session.add c1 session.commit # Load MyNumpy Objects c2 session.query Container.. c1.my_numpies.append mn1 c1.my_numpies.append mn2 session.add c1 session.commit # Load MyNumpy Objects c2 session.query Container..
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