1 from sqlalchemy import *
2 from sqlalchemy import orm
3 from sqlalchemy.orm import create_session, relation
5 from sqlalchemy.ext.sessioncontext import SessionContext
6 from sqlalchemy.ext.assignmapper import assign_mapper
8 from owner import Owner
14 'machine_access_table',
34 meta = ThreadLocalMetaData()
35 session = orm.scoped_session(orm.sessionmaker(transactional=False, autoflush=False))
37 machine_table = Table('machines', meta,
38 Column('machine_id', Integer, primary_key=True, nullable=False),
39 Column('name', String, nullable=False),
40 Column('description', String, nullable=False),
41 Column('memory', Integer, nullable=False),
42 Column('owner', String, nullable=False),
43 Column('contact', String, nullable=False),
44 Column('uuid', String, nullable=False),
45 Column('administrator', String, nullable=True, default=None),
46 Column('type_id', String, ForeignKey('types.type_id'), nullable=False),
47 Column('autorestart', Boolean, nullable=False, default=False),
48 Column('cpus', Integer, nullable=False, default=1),
49 Column('adminable', Boolean, nullable=False, default=False))
51 nic_table = Table('nics', meta,
52 Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=True),
53 Column('mac_addr', String, nullable=False, primary_key=True),
54 Column('ip', String, nullable=False, unique=True),
55 Column('hostname', String, nullable=True))
57 disk_table = Table('disks', meta,
58 Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=False),
59 Column('guest_device_name', String, nullable=False),
60 Column('size', Integer, nullable=False),
61 PrimaryKeyConstraint('machine_id', 'guest_device_name'))
63 types_table = Table('types', meta,
64 Column('type_id', String, primary_key=True, nullable=False),
65 Column('description', String, nullable=False),
66 Column('hvm', Boolean, nullable=False),
67 Column('apic', Boolean, nullable=False),
68 Column('acpi', Boolean, nullable=False),
69 Column('pae', Boolean, nullable=False))
71 mirrors_table = Table('mirrors', meta,
72 Column('mirror_id', String, primary_key=True, nullable=False),
73 Column('uri_prefix', String, nullable=False))
75 cdroms_table = Table('cdroms', meta,
76 Column('cdrom_id', String, primary_key=True, nullable=False),
77 Column('description', String, nullable=False),
78 Column('mirror_id', String, ForeignKey('mirrors.mirror_id')),
79 Column('uri_suffix', String))
81 autoinstalls_table = Table('autoinstalls', meta,
82 Column('autoinstall_id', String, primary_key=True, nullable=False),
83 Column('description', String, nullable=False),
84 Column('type_id', String, ForeignKey('types.type_id'), nullable=False),
85 Column('distribution', String, nullable=False),
86 Column('mirror', String, nullable=False),
87 Column('arch', String, nullable=False))
89 owners_table = Table('owners', meta,
90 Column('owner_id', String, primary_key=True, nullable=False),
91 Column('ram_quota_total', Integer, nullable=True),
92 Column('ram_quota_single', Integer, nullable=True),
93 Column('disk_quota_total', Integer, nullable=True),
94 Column('disk_quota_single', Integer, nullable=True),
95 Column('vms_quota_total', Integer, nullable=True),
96 Column('vms_quota_active', Integer, nullable=True))
98 machine_access_table = Table('machine_access', meta,
99 Column('machine_id', Integer, ForeignKey('machines.machine_id', ondelete='CASCADE'), nullable=False, index=True),
100 Column('user', String, nullable=False, index=True),
101 PrimaryKeyConstraint('machine_id', 'user'))
103 class Machine(object):
105 return "<Machine %s: name='%s' owner='%s'>" % (self.machine_id, self.name, self.owner)
107 class MachineAccess(object):
109 return "<MachineAccess machine='%s' user='%s'>" % (self.machine, self.user)
113 return "<NIC: mac='%s' machine='%s' ip='%s' hostname='%s'>" % (self.mac_addr, self.machine_id, self.ip, self.hostname)
117 return "<Disk: machine=%s device=%s size=%s>" % (self.machine_id, self.guest_device_name, self.size)
121 return "<Type %s: %s>" % (self.type_id, self.description)
123 class Mirror(object):
125 return "<Mirror %s>" % (self.mirror_id)
129 return "<CDROM %s: %s>" % (self.cdrom_id, self.description)
131 class Autoinstall(object):
133 return "<Autoinstall %s: %s (%s)>" % (self.autoinstall_id, self.description, self.type.type_id)
135 session.mapper(Machine, machine_table,
136 properties={'nics': relation(NIC, backref="machine"),
137 'disks': relation(Disk, backref="machine"),
138 'type': relation(Type),
139 'acl': relation(MachineAccess, backref="machine", passive_deletes=True, cascade="all, delete-orphan")});
140 session.mapper(MachineAccess, machine_access_table)
141 session.mapper(NIC, nic_table)
142 session.mapper(Disk, disk_table)
143 session.mapper(Type, types_table)
144 session.mapper(Mirror, mirrors_table)
145 session.mapper(CDROM, cdroms_table,
146 properties={'mirror': relation(Mirror, backref="cdroms")})
147 session.mapper(Autoinstall, autoinstalls_table)
148 session.mapper(Owner, owners_table)
151 """Clear sqlalchemy's cache