Full Stack Foundation Using Python 3

from flask import Flask, render_template, request, redirect, url_for, jsonify
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from database_setup import Base, Restaurant, MenuItem

app = Flask(__name__)

engine = create_engine('sqlite:///restaurantmenu.db')
Base.metadata.bind = engine

DBSession = sessionmaker(bind=engine)
session = DBSession()


@app.route('/restaurants/<int:restaurant_id>/menu/JSON')
def restaurantMenuJSON(restaurant_id):
    restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
    items = session.query(MenuItem).filter_by(
        restaurant_id=restaurant_id).all()
    return jsonify(MenuItems=[i.serialize for i in items])


# ADD JSON ENDPOINT HERE
@app.route('/restaurants/<int:restaurant_id>/menu/JSON')
def menuItemJSON(restaurant_id, menu_id):
    menuItem = session.query(MenuItem).filter_by(id=menu_id).one()
    return jsonify(MenuItem=menuItem.serialize)


@app.route('/')
@app.route('/restaurants/<int:restaurant_id>/menu')
def restaurantMenu(restaurant_id):
    restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
    items = session.query(MenuItem).filter_by(restaurant_id=restaurant_id)
    return render_template(
        'menu.html', restaurant=restaurant, items=items, restaurant_id=restaurant_id)


@app.route('/restaurants/<int:restaurant_id>/new', methods=['GET', 'POST'])
def newMenuItem(restaurant_id):

    if request.method == 'POST':
        newItem = MenuItem(name=request.form['name'], description=request.form[
                           'description'], price=request.form['price'], course=request.form['course'], restaurant_id=restaurant_id)
        session.add(newItem)
        session.commit()
        return redirect(url_for('restaurantMenu', restaurant_id=restaurant_id))
    else:
        return render_template('newmenuitem.html', restaurant_id=restaurant_id)


@app.route('/restaurants/<int:restaurant_id>/<int:menu_id>/edit',
           methods=['GET', 'POST'])
def editMenuItem(restaurant_id, menu_id):
    editedItem = session.query(MenuItem).filter_by(id=menu_id).one()
    if request.method == 'POST':
        if request.form['name']:
            editedItem.name = request.form['name']
        if request.form['description']:
            editedItem.description = request.form['description']
        if request.form['price']:
            editedItem.price = request.form['price']
        if request.form['course']:
            editedItem.course = request.form['course']
        session.add(editedItem)
        session.commit()
        return redirect(url_for('restaurantMenu', restaurant_id=restaurant_id))
    else:

        return render_template(
            'editmenuitem.html', restaurant_id=restaurant_id, menu_id=menu_id, item=editedItem)


@app.route('/restaurants/<int:restaurant_id>/<int:menu_id>/delete',
           methods=['GET', 'POST'])
def deleteMenuItem(restaurant_id, menu_id):
    itemToDelete = session.query(MenuItem).filter_by(id=menu_id).one()
    if request.method == 'POST':
        session.delete(itemToDelete)
        session.commit()
        return redirect(url_for('restaurantMenu', restaurant_id=restaurant_id))
    else:
        return render_template('deletemenuitem.html', item=itemToDelete)


if __name__ == '__main__':
    app.debug = True
    app.run(host='0.0.0.0', port=5000)