class Item(db.Model):
# Columns for the table
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30), nullable=False, unique=True)
price = db.Column(db.Integer(), nullable=False)
barcode = db.Column(db.String(length=12), nullable=False, unique=True)
description = db.Column(db.String(length=1024),
nullable=False, unique=True)
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
def __repr__(self):
return '<Item %r>' % self.id
# Purchase the item
def setOwnership(self, user):
# Set ownership of the item to current user
self.owner = user.id
# Decrease the budget of the user
user.budget -= self.price
db.session.commit()
# Sell the item
def sell(self, user):
# Set ownership to Nobody
self.owner = None
# Give the money back to the user
user.budget += self.price
db.session.commit()
class User(db.Model):
id = db.Column(db.Integer(), primary_key = True)
username = db.Column(db.String(length = 20),nullable = False, unique = True)
email_address = db.Column(db.String(length = 40), nullable = False, unique = True)
password_hash = db.Column(db.String(length = 60), nullable = False)
budget = db.Column(db.Integer(), nullable = False, default = 1000)
items = db.relationship('Item', backref = 'owned_user', lazy = True)
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50),
nullable=False,
unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship('Item', backref='owned_user', lazy=True)
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(
plain_text_password).decode("utf-8")
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.password_hash,
attempted_password)
def can_purchase(self, item_obj):
return self.budget >= item_obj.price
def can_sell(self, item_obj):
return item_obj in self.items
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(50), unique=True, nullable=False)
password_hash = db.Column(db.String(100), nullable=False)
name = db.Column(db.String(20), nullable=False)
items = db.relationship('Item', backref='owned_user', lazy=True)
budget = db.Column(db.Float(), nullable=False, default=1000.0)
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(
plain_text_password).decode('utf-8')
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.password_hash,
attempted_password)
@property
def prettier_budget(self):
return "{:,}".format(self.budget) + " $"
def __repr__(self):
return f"{self.name}"
class Item(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30), nullable=False, unique=True)
price = db.Column(db.Integer(), nullable=False)
barcode = db.Column(db.String(length=12), nullable=False, unique=True)
description = db.Column(db.String(length=1024),
nullable=False,
unique=True)
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
# To get the string representation of the database
# Returns the name of the item
def __repr__(self):
return f'Item: {self.name}'
#Function to assign ownership to a user
def assign_owner(self, user_obj):
self.owner = user_obj.id
user_obj.budget -= self.price
db.session.commit()
#Function to change back ownership to market of the item
def change_owner(self, user_obj):
self.owner = None
user_obj.budget += self.price
db.session.commit()
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(30), nullable=False, unique=True)
email = db.Column(db.String(40), nullable=False, unique=True)
password_hash = db.Column(db.String(40), nullable=False, unique=True)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship('Item', backref='owned_user', lazy=True)
@property
def prettier_budget(self):
return "${:,.2f}".format(self.budget)
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(plain_text_password).decode('utf-8')
def can_purchase(self, item_obj):
return self.budget >=item_obj.price
def can_sell(self, item_obj):
return item_obj in self.items
def __repr__(self):
return f"User: {self.username}"
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50),
nullable=False,
unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship('Item', backref='owned_user', lazy=True)
@property
def prettier_budget(self):
if len(str(self.budget)) >= 4:
return f'{str(self.budget)[:-3]},{str(self.budget)[-3:]}$'
else:
return f'{self.budget}$'
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(
plain_text_password).decode('utf-8')
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.password_hash,
attempted_password)
class Item(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30), nullable=False, unique=True)
price = db.Column(db.Integer(), nullable=False)
barcode = db.Column(db.String(length=12), nullable=False, unique=True)
description = db.Column(db.String(length=1024), nullable=False, unique=True)
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
def __repr__(self):
return f'Item {self.name}'
class Item(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(50), nullable=False)
barcode = db.Column(db.String(50), nullable=False, unique=True)
price = db.Column(db.Float(), nullable=False)
description = db.Column(db.String(2000))
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
def __repr__(self):
return f"{self.name}-{self.price}"
class User(db.Model):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50),
nullable=False,
unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship("Item", backref="owned_user", lazy=True)
def __repr__(self):
return f"{self.name}"
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=24), nullable=False, unique=True)
email = db.Column(db.String(length=70), nullable=False, unique=True)
hash_password = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=100000)
items = db.relationship('Item', backref='owned_user', lazy=True)
#To check if the user have enough budget to purchase the item
def can_purchase(self, item_obj):
return self.budget >= item_obj.price
#To check if the user owns the item
def can_sell(self, item_obj):
return item_obj.owner == self.id
# Returns the username of the User
def __repr__(self):
return self.username
# Decorator property to return password to instances
@property
def password(self):
return self.password
# Decorator to execute code before we set a password
@password.setter
# plain_text_password is the filled in password
def password(self, plain_text_password):
# Assign hash_password field a hashed password generated from bcrypt instance
self.hash_password = bcrypt.generate_password_hash(
plain_text_password).decode('utf-8')
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.hash_password,
attempted_password)
#To format the user budget
@property
def format_budget(self):
temp_lis = list(str(self.budget))
start = 2
if len(temp_lis) > 3:
if len(temp_lis) % 2 == 0:
start = 1
inc = 0
for i in range(start, len(temp_lis) - 1, 2):
temp_lis.insert(i + inc, ',')
inc += 1
return "₹" + "".join(temp_lis)
class Item(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30),nullable=False, unique=True)
price = db.Column(db.Integer(),nullable=False)
barcode = db.Column(db.String(length=12),nullable=False,unique=True)
description = db.Column(db.String(length=1024),nullable=False,unique=True)
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
def buy(self, buying_user):
self.owner = buying_user.id
buying_user.budget -= self.price
db.session.commit()
def __repr__(self):
return f'Item {self.name}'
class User(db.Model, UserMixin):
id = db.Column(db.Integer(),primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50), nullable=False, unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship("Item", backref="owned_user", lazy=True)
def __repr__(self):
return f"{self.username}"
@property
def prettier_budget(self):
if len(str(self.budget)) == 4:
n = self.budget
b = []
s = str(n)[::-1]
b[0:] = s
output = ""
for i in range(1, len(s) + 1):
if i % 3 == 0:
output += f"{s[i - 1]},"
else:
output += s[i - 1]
if output[::-1][0] == ",":
return f"{output[::-1][1:]}$"
else:
return f'{output[::-1]}$'
else:
return f"{self.budget}$"
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(plain_text_password).decode('utf-8')
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.password_hash,attempted_password)
def can_purchase(self, item_obj):
return self.budget >= item_obj.price
def can_sell(self, item_obj ):
return item_obj in self.items
class UpbitTradeHistory(db.Model):
""" Price history 업비트의 체결 히스토리
This records are used to generate indicators in the following:
- Overlap Studies
- Momentum Indicators
"""
id = db.Column(db.Integer, autoincrement=True, primary_key=True)
trade_date = db.Column(db.String)
trade_time = db.Column(db.String)
trade_timestamp = db.Column(db.DateTime)
trade_price = db.Column(db.Integer)
trade_volume = db.Column(db.Float)
sequential_id = db.Column(db.BigInteger)
ask_bid = db.Column(db.String(3))
def __init__(self, obj):
self.trade_date = obj["tradeDate"]
self.trade_time = obj["tradeTime"]
self.trade_timestamp = datetime.fromtimestamp(obj["timestamp"] / 1000)
self.trade_price = obj["tradePrice"]
self.trade_volume = obj["tradeVolume"]
self.sequential_id = obj["sequentialId"]
self.ask_bid = obj["askBid"]
def _aslist(self):
return [self.trade_timestamp.timestamp(), self.trade_price]
class Item(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30), nullable=False, unique=True)
price = db.Column(db.Integer(), nullable=False)
barcode = db.Column(db.String(length=12), nullable=False, unique=True)
description = db.Column(db.String(length=1024), nullable=False, unique=True)
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
def buy(self, user):
self.owner = user.id
user.budget -= self.price
db.session.commit()
def sell(self,user):
self.owner = None
user.budget += self.price
db.session.commit()
class User(db.Model):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50),
nullable=False,
unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship('Item', backref='owned_user', lazy=True)
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(
plain_text_password).decode('utf-8')
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50),
nullable=False,
unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
# this is the one that creates the relationship with the model, but is not stored as a column
# backref is the field to relate to all the items the user has. Also to see the
# owner of specific item
# I need lazy=True to grab all the user's items in one shot
items = db.relationship('Item', backref='owned_user', lazy=True)
# property to format the budget
@property
def prettier_budget(self):
if len(str(self.budget)) >= 4:
return f'$ {str(self.budget)[:-3]},{str(self.budget)[-3:]}'
else:
return f"$ {self.budget}"
# the next lines are for hashing the passwordjj
# create an attribute that will be accesable from each instance.
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
# overwrite what is going to be store in password_hash
self.password_hash = bcrypt.generate_password_hash(
plain_text_password).decode('utf-8')
# to check if the psw is valid while login
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.password_hash,
attempted_password)
def can_purchase(self, item_obj):
return self.budget >= item_obj.price
def can_sell(self, item_obj):
return item_obj in self.items
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30), nullable=False, unique=True)
email = db.Column(db.String(length=50), nullable=False, unique=True)
password = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship('Item', backref='owned_user', lazy=True)
@property
def prettier_budget(self):
if len(str(self.budget)) >=4:
return f'{str(self.budget)[:-3]},{str(self.budget)[-3:]}'
else:
return f'{self.budget}'
def can_purchase(self, item_obj):
return self.budget >= item_obj.price
def can_sell(self,item_obj):
return item_obj in self.items
class Item(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(length=30), nullable=False, unique=True)
price = db.Column(db.Integer(), nullable=False, unique=True)
barcode = db.Column(db.String(length=12), nullable=False, unique=True)
description = db.Column(db.String(1024), nullable=False, unique=True)
# relationship to the user. 'user.id' must be in lower case
owner = db.Column(db.Integer(), db.ForeignKey('user.id'))
# I'm using this to return the value in name field
def __repr__(self):
return f'Item {self.name}'
def buy(self, user):
self.owner = user.id
user.budget -= self.price
db.session.commit()
def sell(self, user):
self.owner = None
user.budget += self.price
db.session.commit()
class Agents(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(120), unique=True, nullable=False)
cash = db.Column(db.Float, default=100000000)
asset_qtys_currency = db.Column(db.String(100), default="KRW-BTC")
asset_qtys = db.Column(db.Float, default=0.0)
portfolio_rets_val = db.Column(db.Float, default=100000000)
portfolio_rets_mdd = db.Column(db.Float, default=0.0)
portfolio_rets_sharp = db.Column(db.Float, default=0.0)
asset_qtys_zero_updated = db.Column(db.DateTime, default=datetime.utcnow)
def __repr__(self):
return "<Agent %r>" % self.name
def _asdict(self):
return dict(agent_info={
"cash": self.cash,
"asset_qtys": {
self.asset_qtys_currency: self.asset_qtys
}
},
portfolio_rets={
"val": self.portfolio_rets_val,
"mdd": self.portfolio_rets_mdd,
"sharp": self.portfolio_rets_sharp
})
def _asrank(self):
cur_price = UpbitTradeHistory.query.order_by(
desc(UpbitTradeHistory.trade_timestamp)).first().trade_price
asset_val = round(self.asset_qtys * cur_price, Constants.BASE)
portfolio_val = round(self.cash + asset_val, Constants.BASE)
profit_ratio = ((portfolio_val / 100000000.0) - 1) * 100.0
return dict(name=self.name,
cash=self.cash,
asset_qtys=self.asset_qtys,
portfolio_val=portfolio_val,
profit=int(profit_ratio * 10_000) / 10000.0)
class User(db.Model, UserMixin):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email = db.Column(db.String(length=50), nullable=False, unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1500)
items = db.relationship('Item', backref='user', lazy=True)
def __repr__(self):
return self.username
@property
def password(self):
return self.password
@password.setter
def password(self, plain):
self.password_hash = bcrypt.generate_password_hash(plain).decode(
'utf-8')
def check_password(self, passc):
return bcrypt.check_password_hash(self.password_hash, passc)
class User(db.Model, UserMixin):
# Columns for the table
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email_address = db.Column(db.String(length=50),
nullable=False, unique=True)
password_hash = db.Column(db.String(length=60), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
items = db.relationship('Item', backref='owned_user', lazy=True)
# We can define additional properties of our model like this
@property
# Puts a comma after thousands
def prettier_budget(self):
if len(str(self.budget)) >= 4:
return f'₹{str(self.budget)[:-3]},{str(self.budget)[-3:]}'
else:
return f'₹{self.budget}'
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.password_hash = bcrypt.generate_password_hash(
plain_text_password).decode('utf-8')
def check_password_correction(self, attempted_password):
return bcrypt.check_password_hash(self.password_hash, attempted_password)
# Check if user can purchase the item
def can_purchase(self, item_obj):
return self.budget >= item_obj.price
# Check if user can sell the item
def can_sell(self, item_obj):
return item_obj in self.items
class User(db.Model):
id = db.Column(db.Integer(), primary_key=True)
username = db.Column(db.String(length=30), nullable=False, unique=True)
email = db.Column(db.String(length=50), nullable=False, unique=True)
# hashed
hashed_password = db.Column(db.String(length=50), nullable=False)
budget = db.Column(db.Integer(), nullable=False, default=1000)
# Relationship between two tables. User can own items.
# owned_user would be an attribute in the 'Item' object
# Lazy==true => items should be loaded lazily when the property is first accessed
items = db.relationship('Item', backref='owned_user', lazy=True)
# method used to represent a class’s objects as a string
def __repr__(self):
return f'User {self.username}'
@property
def password(self):
return self.password
@password.setter
def password(self, plain_text_password):
self.hashed_password = bcrypt.generate_password_hash(plain_text_password).decode('utf-8')
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=True)
content = db.Column(db.Text, nullable=False)
image = db.Column(db.String(20), nullable=False)
image2 = db.Column(db.String(20), nullable=True)
image3 = db.Column(db.String(20), nullable=True)
price = db.Column(db.String(20), nullable=False)
tags = db.Column(db.String(100), nullable=True)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
sold = db.Column(db.Boolean, default=False, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
likes = db.relationship('PostLike', backref='post', lazy='dynamic')
comments = db.relationship("Comment",
backref="post",
lazy="dynamic",
cascade="all, delete-orphan")
def __repr__(self):
if self.title != None:
return f"Post('{self.title}','{self.content}', '{self.date_posted}')"
else:
return f"Post({self.content}', '{self.date_posted}')"
@staticmethod
def on_changed_body(target, value, oldvalue, initiator):
allowed_tags = [
'a', 'abbr', 'acronym', 'b', 'blockquote', 'code', 'em', 'i', 'li',
'ol', 'pre', 'strong', 'ul', 'h1', 'h2', 'h3', 'p', 'iframe'
]
target.content = bleach.linkify(
bleach.clean(markdown(value, output_format='html'),
tags=allowed_tags,
strip=True))
class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80), nullable=False)
username = db.Column(db.String(20), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
bio = db.Column(db.String(120), nullable=True)
dp = db.Column(db.String(20), nullable=False, default='default.png')
location = db.Column(db.String(50), nullable=True)
contact = db.Column(db.String(50), nullable=True)
password = db.Column(db.String(60), nullable=False)
date_joined = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
last_seen = db.Column(db.DateTime, default=datetime.utcnow)
posts = db.relationship('Post', backref='author', lazy=True)
comments = db.relationship("Comment",
backref="author",
lazy="dynamic",
cascade="all, delete-orphan")
followed = db.relationship('User',
secondary=followers,
primaryjoin=(followers.c.follower_id == id),
secondaryjoin=(followers.c.followed_id == id),
backref=db.backref('followers', lazy='dynamic'),
lazy='dynamic')
messages_sent = db.relationship('Message',
foreign_keys='Message.sender_id',
backref='author',
lazy='dynamic')
messages_received = db.relationship('Message',
foreign_keys='Message.recipient_id',
backref='recipient',
lazy='dynamic')
last_message_read_time = db.Column(db.DateTime)
def get_reset_token(self, expires_sec=1800):
s = Serializer(app.config['SECRET_KEY'], expires_sec)
return s.dumps({'user_id': self.id}).decode('utf-8')
@staticmethod
def verify_reset_token(token):
s = Serializer(app.config['SECRET_KEY'])
try:
user_id = s.loads(token)['user_id']
except:
return None
return User.query.get(user_id)
def __repr__(self):
return f"User('{self.username}' , '{self.email}', '{self.image_file}')"
def follow(self, user):
if not self.is_following(user):
self.followed.append(user)
def unfollow(self, user):
if self.is_following(user):
self.followed.remove(user)
def is_following(self, user):
return self.followed.filter(
followers.c.followed_id == user.id).count() > 0
def followed_posts(self):
followed = Post.query.join(
followers, (followers.c.followed_id == Post.user_id)).filter(
followers.c.follower_id == self.id)
own = Post.query.filter_by(user_id=self.id)
return followed.union(own).order_by(Post.date_posted.desc())
def like_post(self, post):
if not self.has_liked_post(post):
like = PostLike(user_id=self.id, post_id=post.id)
db.session.add(like)
def unlike_post(self, post):
if self.has_liked_post(post):
PostLike.query.filter_by(user_id=self.id, post_id=post.id).delete()
def has_liked_post(self, post):
return PostLike.query.filter(PostLike.user_id == self.id,
PostLike.post_id == post.id).count() > 0
def new_messages(self):
last_read_time = self.last_message_read_time or datetime(1900, 1, 1)
return Message.query.filter_by(recipient=self).filter(
Message.timestamp > last_read_time).count()
@staticmethod
def on_changed_body(target, value, oldvalue, initiator):
allowed_tags = [
'a', 'abbr', 'acronym', 'b', 'blockquote', 'code', 'em', 'i', 'li',
'ol', 'pre', 'strong', 'ul', 'h3', 'p', 'iframe'
]
target.content = bleach.linkify(
bleach.clean(markdown(value, output_format='html'),
tags=allowed_tags,
strip=True))
