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Django Tutorial 3 Creating Our First App Video Lecture | Django: The Ultimate Beginners Guide (in Hindi) - Back-End Programming

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FAQs on Django Tutorial 3 Creating Our First App Video Lecture - Django: The Ultimate Beginners Guide (in Hindi) - Back-End Programming

1. What is Django and why is it used for back-end programming?
Ans. Django is a high-level Python web framework that simplifies the process of building web applications. It is used for back-end programming because it provides a convenient way to handle tasks such as routing URLs, managing databases, handling forms, and generating HTML templates, allowing developers to focus on the logic and functionality of their web applications.
2. How do I create a new app in Django?
Ans. To create a new app in Django, you can use the command "python manage.py startapp appname" in the terminal. This will create a new directory with the specified appname, containing the necessary files and folders for the app. You can then configure the app by adding it to the installed apps in the settings.py file.
3. What is the purpose of the migrations folder in a Django app?
Ans. The migrations folder in a Django app is used to manage database schema changes. Whenever you make changes to your models or database structure, Django creates migration files that contain the instructions to update the database accordingly. These migration files are stored in the migrations folder and can be applied or reverted using the "python manage.py migrate" command.
4. How do I define models in Django?
Ans. Models in Django are defined as Python classes that inherit from the "django.db.models.Model" class. Each attribute of the model class represents a database field, and the fields can have various types such as CharField, IntegerField, DateField, etc. By defining models, you can easily create database tables, query data, and perform CRUD operations on the database using Django's ORM (Object-Relational Mapping) system.
5. How can I handle URL routing in Django?
Ans. URL routing in Django is handled through the URLconf (URL configuration) system. In the urls.py file of your Django app, you can define URL patterns using regular expressions and associate them with view functions or class-based views. When a user requests a specific URL, Django matches the requested URL against the defined patterns and calls the corresponding view function to generate the response. This allows you to map URLs to different views and control the flow of your web application.
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