A Complete Beginner's guide to django Part 1

Question 1

Django is a … written in Python

Answer 1

Web framework

Question 2

A Web framework is …

Answer 2

a software that supports the development of dynamic Web sites, applications, and services.

It provides a set of tools and functionalities that solves many common problems associated with Web development, such as security features, database access, sessions, template processing, URL routing, internationalization, localization, and much more.

Question 3

Using a Web framework, such as Django, enables us to develop …

Answer 3

secure and reliable Web applications very quickly in a standardized way, without having to reinvent the wheel.

Question 4

The development of Django is supported by the …

Answer 4

Django Software Foundation.

Question 5

Among the biggest Web sites using Django we have: are …

Answer 5

Instagram, Mozilla, National Geographic.

Question 6

The basic setup for django development consists of installing …

Answer 6

Python, Virtualenv, and Django.

Question 7

What is the name of the virtual environment we use with django?

Answer 7

Virtualenv

Question 8

What command do you use to create the virtual environment?

Answer 8

Inside the your project folder (higher level folder):

virtualenv venv.

Question 9

How do you activate the virtual environment Virtualenv?

Answer 9

Inside the your project folder (higher level folder):

venv\Scripts\activate

Question 10

How do you deactivate the virtual environment Virtualenv?

Answer 10

venv\Scripts\deactivate.bat

Question 11

What comman do you use to generate a new django project?

Answer 11

Inside the your project folder (higher level folder):

django-admin startproject projectName

Question 12

How does the folder structure of a django project look?

Answer 12

project/
is the higher level folder and it contains the djengo project folder (project/) and the virtual environment folder (venv/)

project/project/
is the django project folder and it conains all the apps including the main app (porject/) and the manage.py file

project/project/project
is the folder that contains the django settings and stuff. It contains __init__.py, settings.py, urls.py and wsgi.py

Question 13

manage.py:

Answer 13

inside django project folder.

a shortcut to use the django-admin command-line utility. It’s used to run management commands related to our project. We will use it to run the development server, run tests, create migrations and much more.

Question 14

__init__.py:

Answer 14

inside apps and the project folder.

this empty file tells Python that this folder is a Python package.

Question 15

settings.py:

Answer 15

inside the project folder:

this file contains all the project’s configuration. We will refer to this file all the time!

Question 16

urls.py:

Answer 16

inside the project folder:

this file is responsible for mapping the routes and paths in our project. For example, if you want to show something in the URL /about/, you have to map it here first.

Question 17

wsgi.py

Answer 17

inside the project folder:

this file is a simple gateway interface used for deployment.

Question 18

Django comes with a simple web server installed. What is the command to start it?

Answer 18

Inside the your project folder (higher level folder):

python manage.py runserver

Question 19

In the Django philosophy we have two important concepts:

Answer 19

app: is a Web application that does something. An app usually is composed of a set of models (database tables), views, templates, tests.
project: is a collection of configurations and apps. One project can be composed of multiple apps, or a single app.

Question 20

Hva er kommandoen for å generere board appen?

Answer 20

django-admin startapp boards

i et forum er det katogorisert slik: board –> tråd –> post.

Question 21

Hva er funksjonen til migrations/ mappen i django apper?

Answer 21

Django store some files to keep track of the changes you create in the models.py file, so to keep the database and the models.py synchronized.

Question 22

admin.py:

Answer 22

inside the app folder.

this is a configuration file for a built-in Django app called Django Admin.

Question 23

apps.py

Answer 23

inside the app folder.

this is a configuration file of the app itself.

Question 24

models.py:

Answer 24

inside the app folder.

here is where we define the entities of our Web application. The models are translated automatically by Django into database tables.

Question 25

tests.py:

Answer 25

inside the app folder.

this file is used to write unit tests for the app.

Question 26

views.py:

Answer 26

inside the app folder.

this is the file where we handle the request/response cycle of our Web application.

Question 27

To configure a project to use an app, open the … and add the app name to the … list.

Answer 27

1. ) settings.py file (inside the project folder)

2. ) INSTALLED_APPS

Question 28

Django already come with 6 built-in apps installed. They offer common functionalities that most Web applications need, like authentication, sessions, static files management (images, javascripts, css, etc.) and so on.
What built-in apps are included in django?

Answer 28

django. contrib.admin
django. contrib.auth
django. contrib.contenttypes
django. contrib.sessions
django. contrib.messages
django. contrib.staticfiles