Web Apps

From TRCCompSci - AQA Computer Science
Jump to: navigation, search

Web Apps

Web apps are cross platform apps which are used via a browser. This allows you to create a single app to cover platforms such has Windows, Linux, iOS, Android, and so on. These essentially have a server program, which when you start it will allow you to access your app via http://localhost:8000 or http://127.0.0.1:8000. The exact port number may vary, but the server will output the correct link to use.

Django

Setup

Django in PythonAnywhere

Creating the Home page in Django

Setup in VS

Creating a Django Web App

Django management program

Login System

Set up Login System in Django

Create a sign up page in Django

Create account edit page in Django

Enforce login required for page

Models in django

Creating a Model in Django

Display data from a model in django

Add data into a model in Django

Editing data into a model in Django

Delete data from a model in Django

Relating models in Django, ie Primary key to Foreign Key

Enforcing unique model entries

Other skills

Passing an integer through the url to make a product page

Returning a 404 error if the value is not in the model data

Images in models and uploading images

Change password function

Reset password function

Fully OOP with generic views

Flask

Setup

Creating a Flask Web App

Parts of a Flask Web App

Connecting MySQL to Flask Web App

Connecting sqlite to Flask Web App

Login System

Login and Logout in a Flask App

Register and Edit profile in a Flask App

Database / Models

Models aren't used in Flask, so you will need to use the normal SQLITE queries. Remember the previous tutorials create a class to handle the database, so you will need to write the SQL only. The execute command can be used for Create, Update, Insert, and Delete queries. The select command can be used to run a select query.

Skills

Flashing messages in Flask App

Passing an integer via URL in Flask App

Uploading files in Flask

Fully OOP views in Flask