class Device(db.Model):
__tablename__ = "device"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80))
monolayers = db.relationship('Monolayer', backref='device', lazy='dynamic')
def __init__(self, name):
self.name = name
def __repr__(self):
return "<Device %r>" % self.name
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=False)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
content = db.Column(db.Text, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
def __repr__(self):
return '<Post %r %r %r >' % ('{self.title}', '{self.date_posted}')
class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(20), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
image_file = db.Column(db.String(20),
nullable=False,
default='default.jpg')
password = db.Column(db.String(60), nullable=False)
posts = db.relationship('Post', backref='author', lazy=True)
def __repr__(self):
return '<User %r %r %r >' % (self.username, self.email,
self.image_file)
class ElementType(db.Model):
__tablename__ = "element_type"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80))
elements = db.relationship('Element',
backref='element_type',
lazy='dynamic')
def __init__(self, name):
self.name = name
def __repr__(self):
return "<ElementType %r>" % self.name
class Element(db.Model):
__tablename__ = "element"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(20))
symbol = db.Column(db.String(2))
element_type_id = db.Column(db.Integer, db.ForeignKey("element_type.id"))
def __init__(self, name, symbol, element_type):
self.name = name
self.symbol = symbol
self.element_type_id = element_type.id
def __repr__(self):
return "<Element %r (%r)>" % (self.name, self.symbol)
class Monolayer(db.Model):
__tablename__ = "monolayer"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(100))
device_id = db.Column(db.Integer, db.ForeignKey('device.id'))
alloy_id = db.Column(db.Integer, db.ForeignKey('alloy.id'))
temperature = db.Column(db.Float, default=0.0)
segregation_coef = db.Column(db.Float, default=0.0)
x_fraction = db.Column(db.Float, default=0.0)
def __init__(self,
device,
alloy,
temperature=0.0,
segregation_coef=0.0,
x_fraction=0.0):
self.device_id = device.id
self.alloy_id = alloy.id
self.name = "(%s, T=%.2f, R=%.2f, x=%.2f)" % (
alloy.name, temperature, segregation_coef, x_fraction)
self.temperature = temperature
self.segregation_coef = segregation_coef
self.x_fraction = x_fraction
def __repr__(self):
return "<Monolayer %r>" % self.name
class Alloy(db.Model):
__tablename__ = "alloy"
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30))
element_1_id = db.Column(db.Integer, db.ForeignKey("element.id"))
element_2_id = db.Column(db.Integer, db.ForeignKey("element.id"))
element_3_id = db.Column(db.Integer,
db.ForeignKey("element.id"),
nullable=True)
has_segregation = db.Column(db.Boolean, default=False)
def __init__(self,
element_1,
element_2,
element_3=None,
has_segregation=False):
self.element_1_id = element_1.id
self.element_2_id = element_2.id
if element_3:
self.element_3_id = element_3.id
self.name = "%s_{x} %s_{1-x} %s" % (
element_1.symbol, element_2.symbol, element_3.symbol)
else:
self.element_3_id = None
self.name = element_1.symbol + element_2.symbol
self.has_segregation = has_segregation
def __repr__(self):
return "<Alloy %r>" % self.name