Project Background

The project was to create a drink shop application, that store orders by customers, couriers delivering the product and products sold in the drinks shop.This project provides a simple command-line interface to manage products, couriers, and orders for a store. It allows users to perform CRUD (Create, Read, Update, Delete) operations on these entities using CSV files.

Client requirements

The client requirements was to build an application that could a variety of things fro three main areas of their business; Products, Couriers & Orders information. The client would like to do the following:

1. Perform CRUD (Create, Read, Update, Delete).
2. A storage system for the data: Products, Couriers & Orders.
3. The code should have a testing framework to ensure that it works as intended.

Table of Contents

• Features
• Prerequisites
• Installation
• Usage
  • Main Menu
  • Products Menu
  • Couriers Menu
  • Orders Menu
• Helper Functions
• File Structure

Features

• Load products and couriers from text and CSV files.
• Display lists of products, couriers, and orders.
• Add new products, couriers, and orders.
• Update existing products, couriers, and orders.
• Delete products, couriers, and orders.
• Save changes back to CSV files.

Prerequisites

• Python 3.x
• CSV files named products.csv, couriers.csv, and orders.csv in the project directory.

Installation

1. Clone the repository or download the project files.
2. Ensure you have Python 3.x installed.
3. Install any required packages (if any).

Usage

Run the main script to start the application:

Main Menu

Upon running the script, you will be presented with the main menu:

Select an option: 0 for Exit App 1 for Products Menu 2 for Couriers Menu 3 for Orders Menu

Option selected:

Products Menu

• 0: Exit to Main Menu
• 1: Display Products List
• 2: Add New Product
• 3: Update Existing Product
• 4: Delete Product

Couriers Menu

• 0: Exit to Main Menu
• 1: Display Couriers List
• 2: Add New Courier
• 3: Update Existing Courier
• 4: Delete Courier

Orders Menu

• 0: Exit to Main Menu
• 1: Display Orders List
• 2: Add New Order
• 3: Update Order Status
• 4: Update Existing Order
• 5: Delete Order

Helper Functions

The functionality is broken down into several helper functions located in helper_functions.py:

• load_csv(filename): Load data from a CSV file.
• print_product(products): Print the list of products.
• print_courier(couriers): Print the list of couriers.
• orders_print(orders): Print the list of orders.
• product_info(): Get new product information from the user.
• courier_info(): Get new courier information from the user.
• orders_info(): Get new order information from the user.
• append_product(filename, product): Append a new product to the CSV file.
• courier_append(filename, courier): Append a new courier to the CSV file.
• orders_append(filename, order): Append a new order to the CSV file.
• update_product(filename, products): Update an existing product in the CSV file.
• courier_update(filename, couriers): Update an existing courier in the CSV file.
• orders_update_order(filename, orders): Update an existing order in the CSV file.
• orders_update_status(filename, orders): Update the status of an order in the CSV file.
• delete_product(filename): Delete a product from the CSV file.
• courier_delete(filename): Delete a courier from the CSV file.
• orders_delete(filename): Delete an order from the CSV file.

File Structure

The project files should be organized as follows: .

• main.py
• helper_functions.py
• products.csv
• couriers.csv
• orders.csv
• README.md

'minor change again'