from sqlalchemy import *
+from sqlalchemy.ext.sessioncontext import SessionContext
+from sqlalchemy.ext.assignmapper import assign_mapper
+
+__all__ = ['meta',
+ 'ctx',
+ 'machine_table',
+ 'nic_table',
+ 'disk_table',
+ 'types_table',
+ 'cdroms_table',
+ 'Machine',
+ 'NIC',
+ 'Disk',
+ 'Type',
+ 'CDROM']
+
meta = DynamicMetaData()
+ctx = SessionContext(create_session)
machine_table = Table('machines', meta,
Column('machine_id', Integer, primary_key=True, nullable=False),
nic_table = Table('nics', meta,
Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=True),
- Column('mac_addr', String, nullable=False),
- Column('hostname', String, nullable=False))
+ Column('mac_addr', String, nullable=False, primary_key=True),
+ Column('ip', String, nullable=False, unique=True),
+ Column('hostname', String, nullable=True))
disk_table = Table('disks', meta,
Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=False),
types_table = Table('types', meta,
Column('type_id', String, primary_key=True, nullable=False),
Column('description', String, nullable=False),
+ Column('hvm', Boolean, nullable=False),
Column('apic', Boolean, nullable=False),
Column('acpi', Boolean, nullable=False),
Column('pae', Boolean, nullable=False))
+cdroms_table = Table('cdroms', meta,
+ Column('cdrom_id', String, primary_key=True, nullable=False),
+ Column('description', String, nullable=False))
+
+
+class Machine(object):
+ pass
+
+class NIC(object):
+ def __init__(self, machine_id, mac_addr, ip, hostname):
+ self.machine_id = machine_id
+ self.mac_addr = mac_addr
+ self.ip = ip
+ self.hostname = hostname
+
+class Disk(object):
+ def __init__(self, machine_id, guest, size):
+ self.machine_id = machine_id
+ self.guest_device_name = guest
+ self.size = size
+
+class Type(object):
+ pass
+
+class CDROM(object):
+ def __init__(self, cdrom_id, description):
+ self.cdrom_id = cdrom_id
+ self.description = description
+
+assign_mapper(ctx, Machine, machine_table, \
+ properties={'nics': relation(NIC),
+ 'disks': relation(Disk)});
+assign_mapper(ctx, NIC, nic_table)
+assign_mapper(ctx, Disk, disk_table)
+assign_mapper(ctx, Type, types_table)
+assign_mapper(ctx, CDROM, cdroms_table)
+