This is the error: Note that the first param is an SA object instead of
the integer key.
sqlalchemy.exceptions.SQLError: (ProgrammingError) can't adapt 'SELECT
records_tinwsys.tinwsys_st_code AS records_tinwsys_tinwsys_st_code,
records_tinwsys.tinwsys_is_number AS records_tinwsys_tinwsys_is_number,
records_tinwsys.record_id AS records_tinwsys_record_id \nFROM
efile2.records_tinwsys \nWHERE records_tinwsys.record_id =
%(records_tinwsys_record_id)s AND records_tinwsys.tinwsys_is_number =
%(records_tinwsys_tinwsys_is_number)s AND
records_tinwsys.tinwsys_st_code = %(records_tinwsys_tinwsys_st_code)s
ORDER BY records_tinwsys.record_id' {'records_tinwsys_record_id':
<mswater.lib.dblib.sqla.classes.efile.Record object at 0xb73324ac>,
'records_tinwsys_tinwsys_st_code': 'MS',
'records_tinwsys_tinwsys_is_number': 327L}
Here is the intermediate table:
table = Table('records_tingeoar', metadata,
Column('record_id', Integer, primary_key=True),
Column('tingeoar_is_number', Integer, primary_key=True),
Column('tingeoar_st_code', CHAR(2), primary_key=True),
ForeignKeyConstraint(['record_id', ], [records.c.id, ],
"records_tinwsys_record_id_fk",
onupdate="CASCADE", ondelete="CASCADE"),
ForeignKeyConstraint(['tingeoar_is_number', 'tingeoar_st_code'],
[tingeoar.c.tingeoar_is_number,
tingeoar.c.tingeoar_st_code],
"records_tingeoar_tingeoar_fk",
onupdate="CASCADE", ondelete="NO ACTION"),
schema=schemaname,
)
And here are the mapper definitions:
RecordTinwsys.mapper = sa.mapper(RecordTinwsys, records_tinwsys,
primary_key=[records_tinwsys.c.record_id,
records_tinwsys.c.tinwsys_is_number,
records_tinwsys.c.tinwsys_st_code],
properties={
'record' : sa.relation(Record),
'tinwsys' : sa.relation(Tinwsys)
}
)
Record.mapper = sa.mapper(Record, records,
properties={
'tinwsys' : sa.relation(Tinwsys, secondary=records_tinwsys,
backref='efile_records'),
'tingeoar' : sa.relation(Tingeoar, secondary=records_tingeoar,
backref='efile_records'),
}
)
The error occurs where I access the backref attribute 'efile_records'
for Tinwsys.
Randall
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