1 from sqlalchemy import *
3 from sqlalchemy.ext.sessioncontext import SessionContext
4 from sqlalchemy.ext.assignmapper import assign_mapper
19 meta = DynamicMetaData()
20 ctx = SessionContext(create_session)
22 machine_table = Table('machines', meta,
23 Column('machine_id', Integer, primary_key=True, nullable=False),
24 Column('name', String, nullable=False),
25 Column('memory', Integer, nullable=False),
26 Column('owner', String, nullable=False),
27 Column('contact', String, nullable=False),
28 Column('uuid', String, nullable=False),
29 Column('administrator', String, nullable=False, default=False),
30 Column('type_id', String, ForeignKey('types.type_id'), nullable=False),
31 Column('autorestart', Boolean, nullable=False, default=False),
32 Column('cpus', Integer, nullable=False, default=1))
34 nic_table = Table('nics', meta,
35 Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=True),
36 Column('mac_addr', String, nullable=False, primary_key=True),
37 Column('ip', String, nullable=False, unique=True),
38 Column('hostname', String, nullable=True))
40 disk_table = Table('disks', meta,
41 Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=False),
42 Column('guest_device_name', String, nullable=False),
43 Column('size', Integer, nullable=False),
44 PrimaryKeyConstraint('machine_id', 'guest_device_name'))
46 types_table = Table('types', meta,
47 Column('type_id', String, primary_key=True, nullable=False),
48 Column('description', String, nullable=False),
49 Column('hvm', Boolean, nullable=False),
50 Column('apic', Boolean, nullable=False),
51 Column('acpi', Boolean, nullable=False),
52 Column('pae', Boolean, nullable=False))
54 cdroms_table = Table('cdroms', meta,
55 Column('cdrom_id', String, primary_key=True, nullable=False),
56 Column('description', String, nullable=False))
58 machine_access_table = Table('machine_access', meta,
59 Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=False, index=True),
60 Column('user', String, nullable=False, index=True),
61 PrimaryKeyConstraint('machine_id', 'user'))
63 class Machine(object):
65 return "<Machine %s: name='%s' owner='%s'>" % (self.machine_id, self.name, self.owner)
67 class MachineAccess(object):
69 return "<MachineAccess machine='%s' user='%s'>" % (self.machine, self.user)
72 def __init__(self, machine_id, mac_addr, ip, hostname):
73 self.machine_id = machine_id
74 self.mac_addr = mac_addr
76 self.hostname = hostname
78 return "<NIC: mac='%s' machine='%s' ip='%s' hostname='%s'>" % (self.mac_addr, self.machine_id, self.ip, self.hostname)
81 def __init__(self, machine_id, guest, size):
82 self.machine_id = machine_id
83 self.guest_device_name = guest
86 return "<Disk: machine=%s device=%s size=%s>" % (self.machine_id, self.guest_device_name, self.size)
90 return "<Type %s: %s>" % (self.type_id, self.description)
93 def __init__(self, cdrom_id, description):
94 self.cdrom_id = cdrom_id
95 self.description = description
97 return "<CDROM %s: %s>" % (self.cdrom_id, self.description)
99 assign_mapper(ctx, Machine, machine_table,
100 properties={'nics': relation(NIC, backref="machine"),
101 'disks': relation(Disk, backref="machine"),
102 'type': relation(Type),
103 'users': relation(MachineAccess, backref="machine")});
104 assign_mapper(ctx, MachineAccess, machine_access_table)
105 assign_mapper(ctx, NIC, nic_table)
106 assign_mapper(ctx, Disk, disk_table)
107 assign_mapper(ctx, Type, types_table)
108 assign_mapper(ctx, CDROM, cdroms_table)