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 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 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):
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 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, 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 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'))
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 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')
