shopping_cart.py

from main import app
from flask import Flask,redirect,url_for,render_template,abort,request,abort,make_response,session,g,flash
import sqlite3
from werkzeug.utils import secure_filename
import os

@app.route('/shopping_cart', methods = ['GET','POST'])
def shopping_cart():
        if request.method == 'POST':
            if request.form['Submit'] == 'GO TO HOME': #when the GO TO HOME button is pressed redirect to the homepage
                return redirect(url_for('homepage'))
            elif request.form['Submit'] == 'CANCEL' or request.form['Submit'] == 'PAY NOW':
                #we want to clear everything from a session except logged_in, so we store it inside a variable, in order to add it after clearing it
                remember = session['logged_in']
                session.clear()
                session['logged_in'] = remember
                return redirect(url_for('homepage')) 
            elif request.form['Submit'] == 'ADD STOCK': #when the ADD STOCK is pressed redirect to the the add book form
                return redirect(url_for('add_stock'))
            elif request.form['Submit'] == 'GO TO CART': #when the GO TO CART button is pressed redirect to the shopping cart 
                return render_template('shopping_cart.html')
            elif request.form['Submit'] == 'CHECKOUT': #when the CHECKOUT button is pressed redirect to the checkout 
                return render_template('checkout.html')
        else:
            return render_template('shopping_cart.html')