Dear all, I've the following tables:
site_table = Table('site', metadata, Column('id', types.Integer, primary_key=True), Column('name', types.Unicode(15), nullable=False)) chain_table = Table('chain', metadata, Column('id', types.Integer, primary_key=True), Column('letter', types.Unicode(1), nullable=False), Column('ec_number', types.Unicode(50), nullable=True)) sites_chains_table = Table('sites_chains', metadata, Column('site_id', types.Integer, ForeignKey('site.id'),primary_key=True), Column('chain_id', types.Integer,ForeignKey('chain.id'), primary_key=True)) and the following mappers: mapper(Site, site_table, properties={'chain': relationship(Chain, backref='site', secondary=sites_chains_table), }) mapper(Chain, chain_table) Which query I've to write to count all site where chain.ec_number==something using its relation. I tried to do something like: count = Session.query(func.count(Site.id)).filter(Chain.ec_number==ec_number).filter(Site.chain.any(id=Chain.id)).all() but the result isn't real. -- ------------------------------------------------------------------- (o_ (o_ //\ Coltivate Linux che tanto Windows si pianta da solo. (/)_ V_/_ +------------------------------------------------------------------+ | ENRICO MORELLI | email: more...@cerm.unifi.it | | * * * * | phone: +39 055 4574269 | | University of Florence | fax : +39 055 4574253 | | CERM - via Sacconi, 6 - 50019 Sesto Fiorentino (FI) - ITALY | +------------------------------------------------------------------+ -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.