Working with Apps in Django

In this tutorial, we’ll learn about:

What is app in django project and why to use it?
How to create app in django project?

So let’s start with very first question.

What is app in django project and why to use it?

We’ve seen that how to create a project in django. Actually each django project consist of some applications where each application have its task to perform. The main advantage to use apps in django is code reusability. If you have designed an app in a project and you need the same functionality to another project that our app is performing. Then you can simply copy and paste our app into another project. Let’s say you have designed a contact form in one website and you want to use the same contact form in another website then you can do it very easily in django.

How to create an app in django project?

In order to create an application in django project, first open command prompt or terminal and navigate to the project folder and type the command given below.

python manage.py startapp myapp

or if you’re linux or mac user and working with python 3 then type:

python3 manage.py startapp myapp

After entering this command, a folder will be created in your project folder having some files.

Files will be:

py: This file is just to make sure that this file should be treated as package.
admin.py: This file will help us to make the application modifiable while working with the admin interface.
models.py: The models of the application will be stored there. Model means the structure of your app and how it is going to interact with the databases. We’ll discuss more about models in upcoming articles.
tests.py: Unit tests of the app will be stored here.
views.py: views of our application will be stored here.
apps.py: It will contain the name of app to be included to settings.py file and many other things. We’ll see it while making any simple app (for example – blog app).

After creating app we’ve to tell our django project that we’ve made and added an application in our project.

Open your settings.py file and add a path of our newly created app. And edit as:

Working with Apps in Django

If you’re thinking that where that MyappConfig came from? It’s a reference to myapps’s configuration class. You can see it in apps.py file in our myapp folder.

That’s all we have to do to add an app in our django project. But still there is no use of app without its model. So we’ll learn about models in upcoming articles.

If you’ve any problem related to this article please let us know in comment box.

The post Working with Apps in Django appeared first on The Crazy Programmer.

from The Crazy Programmer https://www.thecrazyprogrammer.com/2018/12/working-with-apps-in-django.html

Comments

dotnet sdk list and dotnet sdk latest

Can someone make .NET Core better with a simple global command? Fanie Reynders did and he did it in a simple and elegant way. I'm envious, in fact, because I spec'ed this exact thing out in a meeting a few months ago but I could have just done it like he did and I would have used fewer keystrokes! Last year when .NET Core was just getting started, there was a "DNVM" helper command that you could use to simplify dealing with multiple versions of the .NET SDK on one machine. Later, rather than 'switching global SDK versions,' switching was simplified to be handled on a folder by folder basis. That meant that if you had a project in a folder with no global.json that pinned the SDK version, your project would use the latest installed version. If you liked, you could create a global.json file and pin your project's folder to a specific version. Great, but I would constantly have to google to remember the format for the global.json file, and I'd constan...

15 Web Design Trends to Watch in 2018

The modern world is full of extraordinary things that influence our imagination and mood. Our soul needs a perfect atmosphere and impressive spots. To apply such things in practice, we have submitted the list of the web trends that deserve your attention. Robert frost design analysis will meet all your wishes and expectations. Image Source Web Design Trends to Watch in 2018 1. More Organic Shapes Until this year, web design, as well as mobile design, were based on the right-angled and sharp-edged shapes. However, it seems that this year will bring some significant changes in the field of web design. The recent trends will offer the absolute rounded corners. In addition, the web design of 2018 will make the real things look like the cartoonish ones. 2. Bold Minimalism Although some of you may think that this web design trend will not attract the Internet users. Indeed, the notion of minimalism is often associated with boredom and dullness. However, in this case, bold ...

Data Encryption Standard (DES) Algorithm

Data Encryption Standard is a symmetric-key algorithm for the encrypting the data. It comes under block cipher algorithm which follows Feistel structure. Here is the block diagram of Data Encryption Standard. Fig1: DES Algorithm Block Diagram [Image Source: Cryptography and Network Security Principles and Practices 4 th Ed by William Stallings] Explanation for above diagram: Each character of plain text converted into binary format. Every time we take 64 bits from that and give as input to DES algorithm, then it processed through 16 rounds and then converted to cipher text. Initial Permutation: 64 bit plain text goes under initial permutation and then given to round 1. Since initial permutation step receiving 64 bits, it contains an 1×64 matrix which contains numbers from 1 to 64 but in shuffled order. After that, we arrange our original 64 bit text in the order mentioned in that matrix. [You can see the matrix in below code] After initial permutation, 64 bit text passed throug...

Just 4 Programmers

Search This Blog