Advanced Guide to Python Django: Master Advanced Features and Techniques

• Prefetching (Prefetching): Obtain related objects at one time, reducing the number of database queries.
• Select Related: Only select specific objects related to the current object instead of loading all related objects.
• Lazy Loading: Load objects only when needed to avoid unnecessary database queries.
• Model Manager Optimization: Use objects.filter().defer() and objects.filter().only() to specify to exclude or Contained fields.

cache

• Built-in caching: Use <strong class="keylink">Django</strong>.core.cache Cache view output, database queries, and other content.
• Third-party caching: Integrate third-party caching systems such as Memcached and Redis to provide higher performance and scalability.
• Invalidation strategy: Configure cache invalidation strategy, such as using signal handlers or active cleanup.

Security enhancement

• Cross-site request forgery (CSRF) protection: Prevent malicious form submissions using djan<strong class="keylink">Go</strong>.middleware.csrf.CsrfViewMiddleware.
• Cross-Origin Resource Sharing (CORS): Use django.contrib.corsmiddleware to configure the CORS header to allow cross-origin requests.
• Content Security Policy (CSP): Use the Content-Security-Policy header to limit the scripts, stylesheets, and other resources that are allowed to be loaded.
• Password hashing: Use django.contrib.auth.hashers to provide a secure password hashing algorithm .

RESTful API

• Django REST Framework (DRF): A powerful library for creating RESTful api.
• Serializer: Defines how data is serialized and deserialized with formats such as JSON or XML.
• ViewSet: Handles Http actions such as GET, POST, PUT, and DELETE.
• API version control: Use the Vers<strong class="keylink">io</strong>ning class or third-party library to implement API version control.

Deployment and Operation

• Docker: Use Docker Containerize your Django applications to simplify deployment and management.
• Heroku: Deploy and host Django applications using the Heroku cloud platform.
• AWS Elastic Beanstalk: Easily deploy and automatically scale Django applications with AWS’s hosting platform.
• Monitoring and logging: Use tools such as New Relic, Datadog, etc. Monitor and log application performance and errors.

Other advanced features

• Model inheritance: Create more complex models using models.Model subclasses and reuse base class code.
• Custom Manager: Create a custom model manager to provide additional filtering and querying capabilities.
• Custom forms and validation: Use django.fORM<strong class="keylink">s</strong> to create a custom form and add custom validation rules.
• Generic Views: Use GenericViews Provides generic views to simplify the creation of views for common operations.
• Management Commands: Create custom management commands to perform specific tasks, such as data import or export.

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