def write(self):
print(
f'Writing {len(self.rows):,} rows to {IpedsCharge.__tablename__} table in database.'
)
session = Session()
if len(self.rows) > 0:
try:
for row in self.rows:
_ = session.query(IpedsCharge).filter(
IpedsCharge.unitid == row.unitid,
IpedsCharge.date_key == row.date_key).delete(
synchronize_session=False)
session.bulk_save_objects(self.rows)
session.commit()
except Exception as e:
print(f'An error occurred:\n{str(e)}.')
session.rollback()
print('No changes were made to the database due to error.')
else:
print('Rows successfully written to database.')
else:
print('No rows were available to insert.')
session.close()
def write(self):
session = Session()
if len(self.rows) > 0:
try:
_ = session.query(self.rows[0].__class__).filter(self.rows[0].__class__.date_key==self.date_key).delete(synchronize_session=False)
session.bulk_save_objects(self.rows)
session.commit()
except Exception as e:
print(f'An error occurred:\n{str(e)}.')
session.rollback()
print('No changes were made to the database due to error.')
else:
print('Rows successfully written to database.')
else:
print('No rows were available to insert.')
session.close()
