i solved it with :
///////////////////////////
session.query(Sellers).filter(or_(sellers.c.name ==
'golrang')).delete('sellers')
///////////////////////////////////
On Monday, September 2, 2013 2:00:49 AM UTC+4:30, Mohsen Pahlevanzadeh
wrote:
>
> Dear all,
>
> i get the following traceback for "session.query().filter(sellers.c.name==
> 'golrang').delete('sellers')" line:
>
> ///////////////////////////////////
> Traceback (most recent call last):
> File "/home/mohsen/codes/amlak/amlak/src/test.py", line 106, in <module>
> session.query().filter(sellers.c.name == 'golrang').delete('sellers')
> File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line
> 2580, in delete
> self, synchronize_session)
> File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py",
> line 935, in factory
> }, synchronize_session, query)
> File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py",
> line 809, in _factory
> for x in lookup.keys()))))
> sqlalchemy.exc.ArgumentError: Valid strategies for session synchronization
> are 'evaluate', 'fetch', False
> ////////////////////////////////////
>
> Where's problem?
>
>
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