This repo contains examples from article in our blog.
As it is written in the book “Design Patterns: Elements of Reusable Object-Oriented Software” by Gang of Four:
The singleton pattern is a design pattern that is used to ensure that a class can only have one concurrent instance. Whenever additional objects of a singleton class are required, the previously created, single instance is provided.
Although you can use singletons in the form of ordinary classes in Django applications, let’s take a look at the implementation of a singleton as a model which allows you to save the internal state of the singleton in the database. In our singleton design pattern example, we will show how to implement some project settings in such a way that they can be changed in the admin panel and can be used in templates.
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