crudo
c07c19ca32
* Product has a new 'order' column. * The user can now specify the sort order at product creation time with the 'product add --sort INT' command. * The user can now rearrange the products with the 'products set --sort INT' comand. * The user can now show a sorted list of products in cli.py with the 'product list --sort' command.
145 lines
3.7 KiB
Python
145 lines
3.7 KiB
Python
from datetime import datetime
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from flask import Flask, redirect, request, render_template, flash
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from flask_login import LoginManager, login_user, logout_user, login_required
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from pos.config import Config
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from pos.logging import init_logging, get_logger
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from pos.database import Database, User, Product, Event, Transaction, Order
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config = Config()
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debug = config.core['GENERAL'].getboolean('Debug', False)
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conf_db = config.core['DATABASE']
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conf_flask = config.core['FLASK']
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init_logging(config.logging)
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log = get_logger('web')
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app = Flask(__name__)
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app.config.update(
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debug=debug,
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SECRET_KEY=conf_flask['SECRET_KEY']
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)
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login_manager = LoginManager()
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login_manager.init_app(app)
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login_manager.login_view = 'login'
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login_manager.login_message_category = 'error'
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db = Database(**conf_db)
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@login_manager.user_loader
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def load_user(uid):
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user = None
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with db.get_session() as session:
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user = session.query(User).get(uid)
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return user
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@app.route('/')
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def home():
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return redirect('/sell')
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@app.route('/login', methods=['GET'])
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def login_page():
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return render_template('login.html', title='Login')
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@app.route('/login', methods=['POST'])
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def login():
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username = request.form['username']
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password = request.form['password']
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if not all([username, password]):
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flash("Fill all fields.", 'error')
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return login_page(), 400
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with db.get_session() as session:
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user = session.query(User)\
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.filter(User.username == username)\
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.filter(User.is_active == 1)\
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.one_or_none()
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if user is None:
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flash("User not found.", 'error')
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return login_page(), 400
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if user.password == password:
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login_user(user)
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session.add(user)
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user.is_authenticated = True
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flash("Succesfully logged in.", 'success')
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return redirect('/')
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else:
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flash("Wrong password.", 'error')
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return login_page(), 400
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@app.route('/logout')
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def logout():
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logout_user()
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return redirect('/')
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def get_products(session):
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return session.query(Product)\
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.filter(Product.is_active == 1)\
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.order_by(Product.sort.asc())\
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.all()
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def get_event(session):
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return session.query(Event)\
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.filter(Event.starts_at < datetime.now())\
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.filter((Event.ends_at > datetime.now()) |
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(Event.ends_at is None))\
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.one_or_none()
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@app.route('/sell', methods=['GET'])
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@login_required
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def sell_page():
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with db.get_session() as session:
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products = get_products(session)
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event = get_event(session)
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return render_template('sell.html',
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title='Sell', event=event, products=products)
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@app.route('/sell', methods=['POST'])
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@login_required
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def sell():
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with db.get_session() as session:
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event = get_event(session)
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if event is None:
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flash("Can't perform order without an ongoing event!", 'error')
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return sell_page()
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quantities = request.form.values()
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if not any(int(qty) > 0 for qty in quantities):
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flash("Can't perform empty order!", 'error')
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return sell_page()
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with db.get_session() as session:
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items = request.form.items()
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orders = [
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Order(product_uid=uid, quantity=qty)
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for uid, qty in items
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if int(qty) > 0
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]
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transaction = Transaction(event_uid=event.uid, orders=orders)
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session.add(transaction)
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flash("Success!", 'success')
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return sell_page()
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=8080, debug=debug)
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