Alex Gaynor • 11/29/2008

Building a simple identity map in Django

This technical article explains how to build a simple identity map in Django, addressing a long-standing optimization request in the framework's ticket tracker. It details the implementation using a global cache dictionary, Django signals for cache invalidation, and a custom QuerySet class to intercept database lookups, ensuring objects with the same primary key are the same Python object in memory.

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#performance optimization #django #caching