class Task(Base):
task_id = db.Column(db.Integer, primary_key=True)
task_title = db.Column(db.String(200), unique=False)
task_detail = db.Column(db.Text, unique=False)
deadline = db.Column(db.DATETIME, nullable=True)
archived = db.Column(db.DateTime)
is_archived = db.Column(db.Boolean, default=False)
task_group_id = db.Column(db.Integer,
db.ForeignKey('task_group.task_group_id'))
task_status_id = db.Column(db.Integer,
db.ForeignKey('task_status.task_status_id'))
# One-to-One relation
task_group: TaskGroup = db.relationship('TaskGroup',
backref='Task',
lazy=True)
# One-to-One relation
task_status: TaskStatus = db.relationship('TaskStatus',
backref='Task',
lazy=True)
def __repr__(self):
return '<Task %r, %s>' % (self.task_id, self.title)
class UserGroup(Base):
user_group_id = db.Column(db.Integer, primary_key=True)
user_group_name = db.Column(db.String(200), unique=False)
# Many-to-Many relation
users = db.relationship('User',
secondary=user_group_rel,
lazy='subquery',
backref=db.backref('UserGroup', lazy=True))
# One-to-Many relation
task_groups = db.relationship('TaskGroup', backref='UserGroup', lazy=True)
class User(Base):
user_id = db.Column(db.Integer, primary_key=True)
e_mail = db.Column(db.String(256), unique=True)
# Many-to-Many relation
user_groups = db.relationship('UserGroup',
secondary=user_group_rel,
lazy='subquery',
backref=db.backref('User', lazy=True))
class TaskGroup(Base):
task_group_id = db.Column(db.Integer, primary_key=True)
task_group_title = db.Column(db.String(200), unique=False)
user_group_id = db.Column(db.Integer,
db.ForeignKey('user_group.user_group_id'))
archived = db.Column(db.DateTime)
is_archived = db.Column(db.Boolean, default=False)
# One-to-Many relation
tasks = db.relationship('Task', backref='TaskGroup', lazy=True)
# One-to-One relation
user_group = db.relationship('UserGroup', backref='TaskGroup', lazy=True)
# One-to-Many relation
task_statuses = db.relationship('TaskStatus',
backref='TaskGroup',
lazy=True)
class TaskStatus(Base):
task_status_id = db.Column(db.Integer, primary_key=True)
task_status_name = db.Column(db.String(200), unique=False)
is_done = db.Column(db.Boolean)
task_group_id = db.Column(db.Integer,
db.ForeignKey('task_group.task_group_id'))
# One-to-One relation
task_group: TaskGroup = db.relationship('TaskGroup',
backref='TaskStatus',
lazy=True)
def __init__(self, task_status_name, is_done, task_group_id):
self.task_status_name = task_status_name
self.is_done = is_done
self.task_group_id = task_group_id