Model Fieldname Restrictions in Django Framework

A Django model is the built-in feature that Django uses to create tables, their fields, and various constraints. In short, Django Models is the SQL of Database one uses with Django. SQL (Structured Query Language) is complex and involves a lot of different queries for creating, deleting, updating or any other stuff related to database. Django models simplify the tasks and organize tables into models.

This article revolves around restrictions on models field names.

Django places some restrictions on Model Field Names.

First create the django project to see this restrictions

django-admin startapp myproj
cd myproj

Then create new app.

python manage.py startapp main

Add main app in **settings.py **inside the INSTALLED_APPS

#python #django

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How model queries work in Django

How model queries work in Django

Welcome to my blog, hey everyone in this article we are going to be working with queries in Django so for any web app that you build your going to want to write a query so you can retrieve information from your database so in this article I’ll be showing you all the different ways that you can write queries and it should cover about 90% of the cases that you’ll have when you’re writing your code the other 10% depend on your specific use case you may have to get more complicated but for the most part what I cover in this article should be able to help you so let’s start with the model that I have I’ve already created it.

**Read More : **How to make Chatbot in Python.

Read More : Django Admin Full Customization step by step

let’s just get into this diagram that I made so in here:

Describe each parameter in Django querset

we’re making a simple query for the myModel table so we want to pull out all the information in the database so we have this variable which is gonna hold a return value and we have our myModel models so this is simply the myModel model name so whatever you named your model just make sure you specify that and we’re gonna access the objects attribute once we get that object’s attribute we can simply use the all method and this will return all the information in the database so we’re gonna start with all and then we will go into getting single items filtering that data and go to our command prompt.

Here and we’ll actually start making our queries from here to do this let’s just go ahead and run** Python manage.py shell** and I am in my project file so make sure you’re in there when you start and what this does is it gives us an interactive shell to actually start working with our data so this is a lot like the Python shell but because we did manage.py it allows us to do things a Django way and actually query our database now open up the command prompt and let’s go ahead and start making our first queries.

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Django admin full Customization step by step

Welcome to my blog , hey everyone in this article you learn how to customize the Django app and view in the article you will know how to register  and unregister  models from the admin view how to add filtering how to add a custom input field, and a button that triggers an action on all objects and even how to change the look of your app and page using the Django suit package let’s get started.

Database

Custom Titles of Django Admin

Exclude in Django Admin

Fields in Django Admin

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4 key Features of Django Framework that Make it the Best Amongst all!

Django is one of the popular python based open-source web frameworks mainly used by the developers who like to have rapid development along with the clean pragmatic design.

Read this blog to know the various Django Features with details.

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Why should you use Django for Web Development?

Django is a highly powerful framework for building small and large scale web applications. Being a Python-based framework, Django for web development is the preferred choice of companies all over the world. 

If you are looking for proof of Django’s popularity, here it is - Django framework for web development is used by YouTube, Dropbox, Instagram, Pinterest, Google, Reddit, and many more. Being an open-source and maintainable web application development framework, companies adore it for building dynamic and sophisticated web applications. 

Now you must be asking yourself “is Django good for web development?” The framework has a lot of benefits over other frameworks like Ruby on Rails, Flutter, Xamarin, etc. When you want a robust, scalable and stable application with a large codebase, using Django for web development is the right choice. 

Read more: Pros and Cons of Django Web Framework for App Development

What are the advantages of using Django for web development?

Django is admired by web developers all over the world. It is an easy-to-use battery including a framework that doesn’t eat up a lot of time in configuration and setting up the development environment. 

The following benefits are your answer to  “why use Django for web development”:-

1. Simplicity
   Django framework for web development is excellent because of its simplicity and the ease of use. It allows developers to do more than one iteration and make modifications without running the entire code from scratch.
   
   Apart from that, it makes development simpler with its Don’t Repeat Yourself Philosophy, allowing developers to reuse the codebase for creating different components.

2. Ecosystem
   Django has a rich and diverse development ecosystem. It permits a lot of third-party apps and integrations. While setting up the ide for Django web development, you can use the third-party apps and integrations to add components or blocks in the web application.
   
   From authorization to sending emails, there are apps for some of the most common features. It reduces the time taken to write code for these programs and leads to the timely delivery of products.

3. Documentation
   Django for web development comes with excellent documentation to develop real-world applications. While other frameworks have alphabetical lists and modules, Django provides quick references to developers for building applications from different stages in the process.
   
   The documentation is updated regularly as Python programmers add new exceptions, rules, and features to the open-source framework. While it is hard to keep it fine-tuned, it is one of the best documentation of a framework.

4. Wide community
   If you are still asking what are the advantages of using Django for web development, then look at its wide community of developers. Django developers are increasing every day as the framework becomes a popular choice amongst enterprises to fulfill their web application needs.
   
   The community is ready to assist on all Python Django web development projects. There are regular meets, tutorials, and material that can help anyone working with Django. The community regularly answers queries, and you can find the solution to almost any Django problem.

5. Libraries
   Django allows developers to use massive amounts of libraries for building feature-rich and functional applications. Django REST framework is an excellent library for building Application Programming Interfaces (APIs). Django CMS, Django-allauth, and many other libraries are used for adding functionalities to web applications.
   
   Since the framework uses Python, using libraries becomes an easy task. Python has a lot of libraries with Django integration that enables building quality applications.

Also Read: A Guide to Django Web Development for your Business

Start using Django for web application development

Whether you are looking for an ERP application or a B2C web app, Django framework for web development is the perfect solution. It allows you to develop scalable applications capable of handling heavy traffic load in the future.
You can hire Python developers and Django experts for Python development services from BoTree Technologies who can fulfill your web development needs.

Source: https://www.apsense.com/article/why-should-you-use-django-for-web-development.html

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Permissions in Django Rest Framework

This article looks at how permissions work in Django REST Framework (DRF).

Objectives

By the end of this article, you should be able to explain:

1. How DRF permissions work
2. The similarities and differences between has_permission and has_object_permission
3. When to use has_permission and has_object_permission

DRF Permissions

In DRF, permissions, along with authentication and throttling, are used to grant or deny access for different classes of users to different parts of an API.

Authentication and authorization work hand in hand. Authentication is always executed before authorization.

While authentication is the process of checking a user’s identity (the user the request came from, the token that it was signed with), authorization is a process of checking if the request user has the necessary permissions for executing the request (are they a super user, are they the creators of the object).

The authorization process in DRF is covered by permissions.

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