# Topic covered
* Django default User Model
* Custom User Model
* AbstractUser vs AbstractBaseUser
* Validating objects
* full_clean()
* Model.clean_fields()
* Model.clean()
* Model.validate_unique()
01-Django ORM Introduction
Django ORM Introduction
# Topic covered
* Intro to Django ORM
* General/Basic Queries
* Field lookups
* Set Operations
* F() Expression
* Aggregation
* Django Annotations
02-Django ORM Relationship
Django ORM Relationship
# Topic covered
* Relationship
* OneToOne
* ManyToOne
* ManyToMany
* related_name
* related_query_name
03-Django ORM Optimization
Django ORM Optimization
# Topic covered
* Django Tools
* Django Debug Toolbar
* django-extensions
* Django Query optimization
