X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-database.git/blobdiff_plain/f397db06b0260d780be34a33d1a158bf894e2a8f..647f2d0a08c9957ed1d818a77cb03648adb05765:/python/database/models.py?ds=inline diff --git a/python/database/models.py b/python/database/models.py index ee207f6..6b53a2a 100644 --- a/python/database/models.py +++ b/python/database/models.py @@ -1,10 +1,15 @@ from sqlalchemy import * +from sqlalchemy import orm +from sqlalchemy.orm import create_session, relation from sqlalchemy.ext.sessioncontext import SessionContext from sqlalchemy.ext.assignmapper import assign_mapper +from record import * +from owner import Owner + __all__ = ['meta', - 'ctx', + 'session', 'clear_cache', 'machine_table', 'machine_access_table', @@ -12,18 +17,23 @@ __all__ = ['meta', 'disk_table', 'types_table', 'cdroms_table', + 'mirrors_table', 'autoinstalls_table', + 'owners_table', 'Machine', 'MachineAccess', 'NIC', 'Disk', 'Type', 'CDROM', + 'Mirror', 'Autoinstall', + 'Owner', + 'or_', ] -meta = DynamicMetaData() -ctx = SessionContext(create_session) +meta = ThreadLocalMetaData() +session = orm.scoped_session(orm.sessionmaker(transactional=False, autoflush=False)) machine_table = Table('machines', meta, Column('machine_id', Integer, primary_key=True, nullable=False), @@ -33,10 +43,11 @@ machine_table = Table('machines', meta, Column('owner', String, nullable=False), Column('contact', String, nullable=False), Column('uuid', String, nullable=False), - Column('administrator', String, nullable=False, default=False), + Column('administrator', String, nullable=True, default=None), Column('type_id', String, ForeignKey('types.type_id'), nullable=False), Column('autorestart', Boolean, nullable=False, default=False), - Column('cpus', Integer, nullable=False, default=1)) + Column('cpus', Integer, nullable=False, default=1), + Column('adminable', Boolean, nullable=False, default=False)) nic_table = Table('nics', meta, Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=True), @@ -58,66 +69,79 @@ types_table = Table('types', meta, Column('acpi', Boolean, nullable=False), Column('pae', Boolean, nullable=False)) +mirrors_table = Table('mirrors', meta, + Column('mirror_id', String, primary_key=True, nullable=False), + Column('uri_prefix', String, nullable=False)) + cdroms_table = Table('cdroms', meta, Column('cdrom_id', String, primary_key=True, nullable=False), - Column('description', String, nullable=False)) + Column('description', String, nullable=False), + Column('mirror_id', String, ForeignKey('mirrors.mirror_id')), + Column('uri_suffix', String)) autoinstalls_table = Table('autoinstalls', meta, Column('autoinstall_id', String, primary_key=True, nullable=False), Column('description', String, nullable=False), Column('type_id', String, ForeignKey('types.type_id'), nullable=False), Column('distribution', String, nullable=False), - Column('mirror', String, nullable=False)) + Column('mirror', String, nullable=False), + Column('arch', String, nullable=False)) + +owners_table = Table('owners', meta, + Column('owner_id', String, primary_key=True, nullable=False), + Column('ram_quota_total', Integer, nullable=True, default=None), + Column('ram_quota_single', Integer, nullable=True, default=None), + Column('disk_quota_total', Integer, nullable=True, default=None), + Column('disk_quota_single', Integer, nullable=True, default=None), + Column('vms_quota_total', Integer, nullable=True, default=None), + Column('vms_quota_active', Integer, nullable=True, default=None)) machine_access_table = Table('machine_access', meta, - Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=False, index=True), + Column('machine_id', Integer, ForeignKey('machines.machine_id', ondelete='CASCADE'), nullable=False, index=True), Column('user', String, nullable=False, index=True), - PrimaryKeyConstraint('machine_id', 'user', ondelete='CASCADE')) - -class Machine(object): - def __repr__(self): - return "" % (self.machine_id, self.name, self.owner) - -class MachineAccess(object): - def __repr__(self): - return "" % (self.machine, self.user) - -class NIC(object): - def __repr__(self): - return "" % (self.mac_addr, self.machine_id, self.ip, self.hostname) - -class Disk(object): - def __repr__(self): - return "" % (self.machine_id, self.guest_device_name, self.size) - -class Type(object): - def __repr__(self): - return "" % (self.type_id, self.description) - -class CDROM(object): - def __repr__(self): - return "" % (self.cdrom_id, self.description) - -class Autoinstall(object): - def __repr__(self): - return "" % (self.autoinstall_id, self.description, self.type.type_id) - -assign_mapper(ctx, Machine, machine_table, - properties={'nics': relation(NIC, backref="machine", lazy=False), - 'disks': relation(Disk, backref="machine", lazy=False), - 'type': relation(Type, lazy=False), - 'acl': relation(MachineAccess, backref="machine", lazy=False, passive_deletes=True, cascade="all, delete-orphan")}); -assign_mapper(ctx, MachineAccess, machine_access_table) -assign_mapper(ctx, NIC, nic_table) -assign_mapper(ctx, Disk, disk_table) -assign_mapper(ctx, Type, types_table) -assign_mapper(ctx, CDROM, cdroms_table) -assign_mapper(ctx, Autoinstall, autoinstalls_table) + PrimaryKeyConstraint('machine_id', 'user')) -def clear_cache(): - """Clear sqlalchemy's cache. +class Machine(Record): + _identity_field = 'name' + +class MachineAccess(Record): + pass + +class NIC(Record): + pass + +class Disk(Record): + pass - This _seems_ to be the way; it works, but the docs don't mention - it. Why is this so obscure?""" +class Type(Record): + _identity_field = 'type_id' + +class Mirror(Record): + _identity_field = 'mirror_id' + +class CDROM(Record): + _identity_field = 'cdrom_id' + +class Autoinstall(Record): + _identity_field = 'autoinstall_id' + +session.mapper(Machine, machine_table, + properties={'nics': relation(NIC, backref="machine"), + 'disks': relation(Disk, backref="machine"), + 'type': relation(Type), + 'acl': relation(MachineAccess, backref="machine", passive_deletes=True, cascade="all, delete-orphan")}); +session.mapper(MachineAccess, machine_access_table) +session.mapper(NIC, nic_table) +session.mapper(Disk, disk_table) +session.mapper(Type, types_table) +session.mapper(Mirror, mirrors_table) +session.mapper(CDROM, cdroms_table, + properties={'mirror': relation(Mirror, backref="cdroms")}) +session.mapper(Autoinstall, autoinstalls_table) +session.mapper(Owner, owners_table) + +def clear_cache(): + """Clear sqlalchemy's cache + """ - ctx.registry.clear() + session.clear()