How can you implement caching in a Django application?
Instruction: Describe the methods for adding caching to improve the performance of a Django application.
Context: This question assesses the candidate's ability to leverage caching mechanisms within Django to enhance application responsiveness and efficiency.
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Choose the cached value's correctness and visibility contract before selecting a backend. Django supports site-wide cache middleware, per-view cache_page, template fragment caching and a low-level cache API. A database cache is a cache table backend; it does not automatically cache all ORM queries. Local-memory caches are per process, so workers do not share their entries.
For public data only, this low-level helper distinguishes a cache miss from valid falsey values, including None:...