class DbUser(Base):
__tablename__ = "db_dbuser"
id = Column(Integer, primary_key=True)
email = Column(String(254), unique=True, index=True)
password = Column(String(128)) # Clear text password ?
first_name = Column(String(254), nullable=True)
last_name = Column(String(254), nullable=True)
institution = Column(String(254), nullable=True)
is_staff = Column(Boolean, default=False)
is_active = Column(Boolean, default=False)
last_login = Column(DateTime(timezone=True), default=timezone.now)
date_joined = Column(DateTime(timezone=True), default=timezone.now)
def get_aiida_class(self):
from aiida.backends.djsite.db.models import DbUser as DjangoSchemaDbUser
djuser = DjangoSchemaDbUser(id=self.id,
email=self.email,
password=self.password,
first_name=self.first_name,
last_name=self.last_name,
institution=self.institution,
is_staff=self.is_staff,
is_active=self.is_active,
last_login=self.last_login,
date_joined=self.date_joined)
return djuser.get_aiida_class()
class DbCalcState(Base):
__tablename__ = "db_dbcalcstate"
id = Column(Integer, primary_key=True)
dbnode = relationship('DbNode',
backref=backref('dbstates', passive_deletes=True))
state = Column(String(255))
time = Column(DateTime(timezone=True), default=timezone.now)
dbnode_id = Column(
Integer,
ForeignKey('db_dbnode.id',
ondelete="CASCADE",
deferrable=True,
initially="DEFERRED"))
__table_args__ = (UniqueConstraint('dbnode_id', 'state'), )
class DbGroup(Base):
__tablename__ = "db_dbgroup"
id = Column(Integer, primary_key=True)
uuid = Column(UUID(as_uuid=True), default=uuid_func)
name = Column(String(255), index=True)
type = Column(String(255), default="", index=True)
time = Column(DateTime(timezone=True), default=timezone.now)
description = Column(Text, nullable=True)
user_id = Column(
Integer,
ForeignKey('db_dbuser.id',
ondelete='CASCADE',
deferrable=True,
initially="DEFERRED"))
user = relationship('DbUser', backref=backref('dbgroups', cascade='merge'))
dbnodes = relationship('DbNode',
secondary=table_groups_nodes,
backref="dbgroups",
lazy='dynamic')
__table_args__ = (UniqueConstraint('name', 'type'), )
def __str__(self):
if self.type:
return '<DbGroup [type: {}] "{}">'.format(self.type, self.name)
else:
return '<DbGroup [user-defined] "{}">'.format(self.name)
def get_aiida_class(self):
from aiida.orm.implementation.django.group import Group as DjangoAiidaGroup
from aiida.backends.djsite.db.models import DbGroup as DjangoSchemaDbGroup
dbgroup = DjangoSchemaDbGroup(
id=self.id,
type=self.type,
uuid=self.uuid,
name=self.name,
time=self.time,
description=self.description,
user_id=self.user_id,
)
return DjangoAiidaGroup(dbgroup=dbgroup)
class DbNode(Base):
__tablename__ = "db_dbnode"
id = Column(Integer, primary_key=True)
uuid = Column(UUID(as_uuid=True), default=uuid_func)
type = Column(String(255), index=True)
label = Column(String(255), index=True, nullable=True)
description = Column(Text(), nullable=True)
ctime = Column(DateTime(timezone=True), default=timezone.now)
mtime = Column(DateTime(timezone=True), default=timezone.now)
dbcomputer_id = Column(Integer,
ForeignKey('db_dbcomputer.id',
deferrable=True,
initially="DEFERRED"),
nullable=True)
dbcomputer = relationship('DbComputer',
backref=backref('dbnodes', passive_deletes=True))
user_id = Column(Integer,
ForeignKey('db_dbuser.id',
deferrable=True,
initially="DEFERRED"),
nullable=False)
user = relationship('DbUser', backref='dbnodes')
public = Column(Boolean, default=False)
nodeversion = Column(Integer, default=1)
attributes = relationship('DbAttribute', uselist=True, backref='dbnode')
extras = relationship('DbExtra', uselist=True, backref='dbnode')
outputs = relationship("DbNode",
secondary="db_dblink",
primaryjoin="DbNode.id == DbLink.input_id",
secondaryjoin="DbNode.id == DbLink.output_id",
backref=backref("inputs", passive_deletes=True),
passive_deletes=True)
children = relationship("DbNode",
secondary="db_dbpath",
primaryjoin="DbNode.id == DbPath.parent_id",
secondaryjoin="DbNode.id == DbPath.child_id",
backref="parents")
def get_aiida_class(self):
"""
Return the corresponding instance of
:func:`~aiida.orm.implementation.django.node.Node`
or a subclass return by the plugin loader.
.. todo::
The behavior is quite pathetic, creating a django DbNode instance
to instantiate the aiida instance.
These means that every time you load Aiida instances with
the QueryBuilder when using Django as a backend, three instances
are instantiated for every Aiida instance you load!
Could be fixed by allowing DbNode from the dummy nodel to be passed
to AiidaNode's __init__.
:returns: An instance of the plugin class
"""
# I need to import the DbNode in the Django model,
# and instantiate an object that has the same attributes as self.
from aiida.backends.djsite.db.models import DbNode as DjangoSchemaDbNode
dbnode = DjangoSchemaDbNode(id=self.id,
type=self.type,
uuid=self.uuid,
ctime=self.ctime,
mtime=self.mtime,
label=self.label,
dbcomputer_id=self.dbcomputer_id,
user_id=self.user_id,
public=self.public,
nodeversion=self.nodeversion)
return dbnode.get_aiida_class()