Here is a complete code listing so that you can experiment:
#!/usr/bin/env python import sys; sys.path.append('../../../') # show python where the modules are import web.database, web.database.object connection = web.database.connect( adapter="snakesql", database="database-object-related", autoCreate = 1, ) cursor = connection.cursor() person = web.database.object.Table("Person") person.addColumn(web.database.object.String(name="firstName", unique=True, required=True, key=True)) person.addColumn(web.database.object.String(name="surname")) person.addRelated(name="addresses", foreignTable="Address") address = web.database.object.Table("Address") address.addColumn(web.database.object.String(name="firstLine")) address.addColumn(web.database.object.String(name="postcode", unique=True, required=True, key=True)) address.addRelated(name="people", foreignTable="Person") database = web.database.object.Database() database.addTable(person) database.addTable(address) database.init(cursor) if not database.tablesExist(): database.createTables() print "Created Table" john = database['Person'].insert(firstName='John', surname='Smith') owen = database['Person'].insert(firstName='Owen', surname='Jones') friendlyPlace = database['Address'].insert(firstLine='12 Friendly Place', postcode='MK4 1AB') crazyGardens = database['Address'].insert(firstLine='3a Crazy Gardens', postcode='OX1 2ZX') greatRoad = database['Address'].insert(firstLine='124 Great Road', postcode='JG6 3TR') john.relate(friendlyPlace) owen.relate(greatRoad) crazyGardens.relate(john) print john['addresses'].keys() for address in john['addresses'].values(): print address['postcode'] print greatRoad['people'].keys() print owen['addresses']['JG6 3TR']['people'].keys() john['addresses']['MK4 1AB']['firstLine'] = 'The Cottage, 12 Friendly Place' print database['Person']['John']['addresses']['MK4 1AB']['firstLine'] connection.close() # Close the connection without saving changes
The output is:
Created Table ['MK4 1AB', 'OX1 2ZX'] MK4 1AB OX1 2ZX ['Owen'] ['Owen'] The Cottage, 12 Friendly Place
You will need to delete the database file object-related.db each time you run the cose so that it can be recreated each time.