Summary: In this tutorial, you will learn to create a custom user model by extending the predefined AbstractBaseUser and BaseUserManager classes in Django. What is user Model in Django? In…
Summary: In this tutorial, you will learn the difference between OneToOneField and ForeignKey in Django with the help of the examples. Difference between OneToOneField and ForeignKey A OneToOneField in Django…
To do a "not equal" comparison in a Django queryset filter, you can use the __ne lookup type. For example: MyModel.objects.filter(field__ne='value') This will return all the MyModel instances where the…
You can temporarily disable a foreign key constraint in MySQL by using the SET FOREIGN_KEY_CHECKS variable. To disable a foreign key constraint, you can use the following statement: SET FOREIGN_KEY_CHECKS…
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Summary: In this tutorial, you will learn to implement the breadth first search (BFS) in Python with the help of an example. What is Breadth-First Search? Breadth-first search (BFS) is…
Summary: In this tutorial, you will learn about memory leak in JavaScript and how you can avoid them with the help of the examples. Memory Leak in JavaScript A memory…
Summary: In this tutorial, you will learn about dependencies and its types in context to relational databases (DBMS) with the help of the examples. Dependencies in DBMS In a database…
Summary: In this tutorial, you will learn the difference between the event.preventDefault() and return false statement in Javascript. Difference between event.preventDefault() and return false In JavaScript, event.preventDefault() is a method…
Summary: In this tutorial, you will learn the significance of yield keyword in Python with the help of examples. Yield in Python The yield keyword is used in the body…
Summary: In this tutorial, you will learn the difference between let and var in JavaScript with the help of the examples. In JavaScript, var and let are both used for…