def account():
"""Show account management page"""
user_id = session.get("user_id")
# User reached route via POST (as by submitting a form with new username/password via POST)
if request.method == "POST":
username = request.form.get("newname")
password = request.form.get("newpass")
confirmation = request.form.get("confpass")
if username or password:
# if new password was submitted
if password:
# Check password matches pattern
if not re.match(
"(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*(&|%|#)).{8,}",
password):
return apology(
"Password must contain at least one number, one uppercase and lowercase letter, one special symbol (&,$,#) and has at least 8 characters",
403)
# Ensure password confirmation matches password
if password != confirmation or not confirmation:
return apology("confirmation does not match password", 403)
# Udate password hash in database
cur_user = Users.query.filter(Users.id == user_id).first()
cur_user.hash = generate_password_hash(password)
db.session.commit()
# if new username was submitted
if username:
# Ensure username is not in use
if Users.query.filter(Users.username == username,
Users.id != user_id).first() is not None:
return apology("username already exists", 403)
# Udate username in database
cur_user = Users.query.filter(Users.id == user_id).first()
cur_user.username = username
db.session.commit()
# Flash success message
flash("Your username / password were changed.")
# Redirect user to home page
return redirect(url_for("home.index"))
else:
# Flash no-change message
flash("Your username / password were not changed")
# Redirect user to home page
return redirect(url_for("admin.account"))
else:
user = db.session.query(Users.username,
Users.cash).filter(Users.id == user_id)
return render_template("account.html", user=user)
def history():
"""Show history of transactions"""
data = get_history("date", "desc", "all")
if data[0] == "error":
# return render_template('debug.html', fund = data[1])
return apology("Database read error", 403)
elif data == "empty":
return apology("You did not make any transaction yet", 403)
return render_template("history.html", history=data)
def register():
"""Register user"""
# User reached route via POST (as by submitting a form via POST)
if request.method == "POST":
username = request.form.get("username")
password = request.form.get("password")
confirmation = request.form.get("confirmation")
# Ensure username was submitted
if not username:
return apology("must provide username", 403)
# Ensure username is uniq
elif Users.query.filter(Users.username == username).first() is not None:
return apology("username already exists", 403)
# Ensure password was submitted
elif not password:
return apology("must provide password", 403)
# Check password matches pattern
if not re.match("(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*(&|%|#)).{8,}", password):
return apology("Password must contain at least one number, one uppercase and lowercase letter, one special symbol (&,$,#) and has at least 8 characters", 403)
# Ensure password confirmation matches password
elif password != confirmation or not confirmation:
return apology("confirmation does not match password", 403)
# Insert username in database
new_user = Users(
username = username,
hash = generate_password_hash(password))
db.session.add(new_user)
db.session.flush()
# log newly registered user in
#id = db.session.query(Users.id).filter(Users.username == username).first()
session["user_id"] = new_user.id
# finalize changes to database
db.session.commit()
# Flash success message
flash("Congratulation! You were successfully registered!")
# Redirect user to home page
return redirect(url_for("home.index"))
# User reached route via GET (as by clicking a link or via redirect)
else:
return render_template("register.html")
def index():
"""Show portfolio of stocks"""
# request necessary data
data = get_portfolio("symbol", "asc")
if data == "error":
return apology("database read error", 403)
#return render_template('debug.html', fund = data)
return render_template("index.html", rows = data[1], totals = data[0])
def login():
"""Log user in"""
# Forget any user_id
session.clear()
# User reached route via POST (as by submitting a form via POST)
if request.method == "POST":
username = request.form.get("username")
password = request.form.get("password")
# Ensure username was submitted
if not username:
return apology("must provide username", 403)
# Ensure password was submitted
elif not password:
return apology("must provide password", 403)
# Query database for username
try:
cur_user = Users.query.filter(Users.username == username).first()
except Exception as error:
return apology("database read error", 403)
# Ensure username exists
if cur_user is None:
return apology("Invalid username", 403)
# Ensure password is correct
if not check_password_hash(cur_user.hash, password):
return apology("invalid password", 403)
# Remember which user has logged in
session["user_id"] = cur_user.id
# Redirect user to home page
return redirect(url_for("index"))
# User reached route via GET (as by clicking a link or via redirect)
else:
return render_template("/login.html")
def changefund():
"""Manage cash funds in portfolio"""
user_id = session.get("user_id")
# User reached route via POST by submitting a form
if request.method == "POST":
operation = request.form.get("cashop")
amount = int(request.form.get("amount"))
if not amount or amount < 0:
return apology(
"Please enter amount of cash you would like to add / withdraw a a positive number",
403)
#current = db.execute("SELECT cash FROM users WHERE id = :user_id", user_id = user_id)
current = Users.query.filter(Users.id == user_id).first()
if operation == "add":
new_amount = current.cash + amount
message = "You successfully added funds to your account"
if operation == "withdraw":
if amount > current.cash:
return apology(
"The amount of cash in your account is not enough", 403)
new_amount = current.cash - amount
message = "You successfully withdrew funds from your account"
# Udate cash amount in database
current.cash = new_amount
db.session.commit()
# Flash success message
flash(message)
# Redirect user to home page
return redirect(url_for("home.index"))
else:
return redirect(url_for("admin.account"))
def sell():
"""Sell shares of stock"""
rows = db.session.query(
Transactions.symbol,
Transactions.shares).filter_by(user_id=current_user.id).all()
symbols = [row[0] for row in rows]
form = SellForm()
form.symbol.choices = ['Select Symbol'] + list(set(symbols))
if form.validate_on_submit():
if form.symbol.data not in symbols:
return apology('symbol not in portfolio', 403)
elif int(form.shares.data) > sum(
[row[1] for row in rows if row[0] == form.symbol.data]):
return apology('share number exceeded', 403)
user = User.query.filter_by(id=current_user.id).first()
resp = lookup(form.symbol.data)
total_price = int(form.shares.data) * resp['price']
user.cash += total_price
transaction = Transactions(symbol=form.symbol.data,
shares=-form.shares.data,
price=resp['price'],
user_id=user.id)
db.session.add(transaction)
db.session.commit()
flash('SOLD!', 'success')
return redirect('/')
else:
return render_template('sell.html', symbols=symbols, form=form)
def buy():
"""Buy shares of stock"""
form = BuyForm()
if form.validate_on_submit():
resp = lookup(form.symbol.data)
user = User.query.filter_by(id=current_user.id).first()
total_price = int(form.shares.data) * resp['price']
if user.cash < total_price:
return apology("not enough cash to complete the transaction")
user.cash -= total_price
transaction = Transactions(symbol=form.symbol.data,
shares=form.shares.data,
price=resp['price'],
user_id=user.id)
db.session.add(transaction)
db.session.commit()
flash('BOUGHT!', 'success')
return redirect('/')
return render_template('buy.html', form=form)
def errorhandler(e):
"""Handle error"""
if not isinstance(e, HTTPException):
e = InternalServerError()
return apology(e.name, e.code)
def buy():
"""Buy shares of stock"""
# return base buy page if no url variiables
if not request.args and request.method == "GET":
return render_template("buy.html")
# get user id
user_id = session.get("user_id")
# request stock ticker symbol from URL
symbol = request.args.get("symbol", '')
shares = request.args.get("shares", '')
# set shares if no number is provided
if not shares:
shares = 0
# check 'shares' is positive number
if int(shares) < 0:
return apology("Please enter positive number of shares to buy", 403)
# get cash available
#fund = db.execute("SELECT cash FROM users WHERE id = :user_id", user_id = user_id)
fund = Users.query.filter(Users.id == user_id).first()
funds = float(fund.cash)
# no stock ticker symbol was provided through GET method
if not symbol:
# User reached route via POST (as by submitting a form via POST)
if request.method == "POST":
symbol = request.form.get("symbol")
name = request.form.get("name")
shares = int(request.form.get("shares"))
price = float(request.form.get("price"))
# load apology if symbol is not provided
if not symbol:
return apology("please enter stock ticker symbol", 403)
# load apology if number is not provided
if not shares or shares <= 0:
return apology("Please enter positive number of shares to buy",
403)
# check funds available
if funds < price * shares:
return apology("Sorry, not enough funds for this transaction",
403)
# prepare data to be inserted into db
amount = round(shares * price, 2)
cash_after = funds - amount
# fill in transactions table with new data
new_transaction = Transactions(user_id=user_id,
symbol=symbol,
name=name,
number=shares,
price=price,
amount=shares * price,
type="buy")
db.session.add(new_transaction)
db.session.commit()
# update cash
cur_user = Users.query.filter(Users.id == user_id).first()
cur_user.cash = cash_after
db.session.commit()
message = "You've successfully bought " + str(
shares) + " shares of " + symbol
flash(message)
return redirect(url_for("index"))
else:
return apology("please enter stock ticker symbol", 403)
# request symbol information from IEX cloud
quoteInfo = lookup(symbol)
# redirect to buy page with error message if no symbol was found
if quoteInfo is None:
return apology(
"The symbol was not found or something else went wrong.", 403)
# load buy page with stock ticker information filled in
return render_template("buy.html",
quoteInfo=quoteInfo,
shares=shares,
price=quoteInfo["price"],
cash=funds,
required=quoteInfo["price"] * int(shares))
def sell():
"""Sell shares of stock"""
user_id = session.get("user_id")
# request a list of owned shares
#holdings = db.execute("SELECT symbol, name, SUM(number) shares, SUM(amount) total, (SUM(amount) / SUM(number)) avgprice FROM transactions WHERE user_id = :user_id GROUP BY symbol", user_id = user_id)
holdings = db.session.query(Transactions.symbol, Transactions.name,
func.sum(Transactions.number).label('shares'),
func.sum(Transactions.amount).label('total'),
label('avgprice', func.sum(Transactions.amount) / func.sum(Transactions.number))).\
filter(Transactions.user_id == user_id).group_by(Transactions.symbol).all()
# return base sell page if no url variiables
if not request.args and request.method == "GET":
if holdings is not None:
# prepare a list of owned shares to choose from
list = []
for row in holdings:
list.append(row.symbol)
# load sell page
return render_template("sell.html", list=list)
# return apology if user does not own any stock
else:
return apology("You do not own any stock to sell", 403)
# request stock ticker symbol from URL
symbol = request.args.get("symbol", '')
# no stock ticker symbol was provided via GET
if not symbol:
# User reached route via POST (as by submitting a form via POST)
if request.method == "POST":
symbol = request.form.get("symbol")
name = request.form.get("name")
shares = request.form.get("shares")
price = float(request.form.get("price"))
# load apology if symbol is not provided
if not symbol:
return apology(
"Please choose ticker symbol of stock you want to sell",
403)
# load apology if number is not provided
if not shares or int(shares) <= 0:
return apology(
"Please enter positive number of shares to sell", 403)
# get owned number of stocks
for row in holdings:
if symbol == row.symbol:
sharesOwned = row.shares
break
# check number of shares available
if int(shares) > sharesOwned:
return apology(
"Sorry, you do not own enough number of shares ", 403)
# prepare data to be inserted into db
amount = round(int(shares) * price, 2) * -1
#funds = db.execute("SELECT cash FROM users WHERE id = :user_id", user_id = user_id)
funds = Users.query.filter(Users.id == user_id).first()
cash_after = float(funds.cash) - amount
# fill in transactions table with new data
new_transaction = Transactions(user_id=user_id,
symbol=symbol,
name=name,
number=int(shares) * -1,
price=price,
amount=amount,
type="sell")
db.session.add(new_transaction)
db.session.commit()
cur_user = Users.query.filter(Users.id == user_id).first()
cur_user.cash = cash_after
db.session.commit()
message = "You've successfully sold " + str(
shares) + " shares of " + symbol
flash(message)
return redirect(url_for("index"))
else:
return apology("must enter stock ticker symbol", 403)
# request symbol information from IEX cloud
quoteInfo = lookup(symbol)
# redirect to buy page with error message if no symbol was found
if quoteInfo is None:
return apology(
"The symbol was not found or something else went wrong.", 403)
# get number of owned stocks and average price of aquisition
for row in holdings:
if symbol == row.symbol:
sharesOwned = row.shares
avgPrice = row.avgprice
amount = row.total
break
# load sell page with stock ticker information filled in
return render_template("sell.html",
quoteInfo=quoteInfo,
sharesOwned=sharesOwned,
avgPrice=avgPrice,
amount=amount)
