Django Abstract classes
Abstract classes are reusable components. You can inherit them in models wherever you want to get the features from abstract base class. You can define as many abstract classes and inherit them into single model. In database, no table will be created for abstract classes but abstract class fields will be existed in inherited models
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Every abstract class look like a normal django models but only the difference is abstract=True keyword in abstract class Meta
For demonstration, I am going to create two models Product and Order and two abstract classes Userstamp and Timestamp
Userstamp includes only information, who created what and who is updated what
Timestamp includes, what created at what time and what is updated at what time
Create Product and Order models and inherit from Userstamp and Timestamp. You don’t need to mention models.Model specifically
Now let’s observe the database schema for the created models
Here you can’t see the tables for Userstamp and Timestamp because they are defined as abstract=True. The tables will be create only for the models which are inherited from abstract classes
You can see here, created_by, updated_by, created_at and updated_at in both Product and Order models and we did not define any of these fields in the models
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