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Questions and Answers
What is the primary advantage of Django's modular design?
What is the primary advantage of Django's modular design?
What is the primary function of Django's ORM?
What is the primary function of Django's ORM?
What is the purpose of the urls.py file in a Django project?
What is the purpose of the urls.py file in a Django project?
What is the role of the template engine in the Django request-response cycle?
What is the role of the template engine in the Django request-response cycle?
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What is the top-level directory containing the project's configuration called?
What is the top-level directory containing the project's configuration called?
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What is the entry point for the Django application?
What is the entry point for the Django application?
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Study Notes
What is Django?
- A free and open-source web framework written in Python
- Enables rapid development of secure, maintainable, and scalable websites
- Provides an architecture, templates, and APIs to build web applications quickly
Key Features of Django
- Modular design: Breaks down a project into smaller, reusable components (apps)
- ORM (Object-Relational Mapping): Abstracts database interactions, supports multiple databases
- ** Templating engine**: Provides a syntax for separating presentation logic from application logic
- Authentication and Authorization: Built-in system for user authentication and permission management
- Admin interface: Automatically generates a web-based interface for models
Django Project Structure
- Project directory: Top-level directory containing the project's configuration
- Apps: Reusable components that contain models, views, templates, and URLs
-
settings.py: Configuration file for the project -
urls.py: Maps URLs to views -
wsgi.py: Entry point for the application
Django Request-Response Cycle
- Client request: Client sends a request to the Django server
- URL dispatcher: Maps the request URL to a view function
- View function: Processes the request, interacts with models and templates
- Model: Interacts with the database, retrieves or updates data
- Template engine: Renders a template with data from the view
- Response: Returns the rendered HTML response to the client
Django Models
- Database tables: Represented as Python classes, define the structure of the database
- Fields: Define the columns of the database table
- Meta options: Provide additional metadata for the model
- Methods: Define custom functionality for the model
Django Views
- Functions: Handle HTTP requests, interact with models and templates
- Class-based views: Organize views into reusable classes
- Generic views: Provide common functionality for CRUD operations
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Description
Learn the basics of Django, a Python web framework, including its features, project structure, and request-response cycle. Understand how to build scalable and maintainable web applications using Django's models, views, and templates.
