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In practice, you rarely get all the rows from one or more tables in the database. Instead, you get a subset of rows for displaying on a web page. Django uses the slicing syntax to limit a QuerySet to a specific number of objects. Behind the scenes, Django executes a SQL SELECT statement with LIMIT and OFFSET clauses. Suppose youContinue Reading

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In a many-to-many relationship, multiple rows in a table are associated with multiple rows in another table. To establish a many-to-many relationship, relational databases use a third table called the join table and create two one-to-many relationships from the source tables. Typically, the join table contains the id values of the source tablesContinue Reading

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Introduction to the Django Many-to-Many relationship In a many-to-many relationship, multiple rows in a table are associated with multiple rows in another table. For example, an employee may have multiple compensation programs and a compensation program may belong to multiple employees. Therefore, multiple rows in the employee table are associatedContinue Reading

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Introduction to the Django one-to-many relationships In a one-to-many relationship, a row in a table is associated with one or more rows in another table. For example, a department may have one or more employees and each employee belongs to one department. The relationship between departments and employees is aContinue Reading

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Introduction to the Django One-To-One relationship The one-to-one relationship defines a link between two tables, where each row in a table appears once in another table. For example, each employee has a contact and each contact belongs to one employee. So the relationship between employees and contacts is a one-to-oneContinue Reading

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Introduction to Django ORM ORM stands for object-relational mapping. ORM is a technique that allows you to manipulate data in a relational database using object-oriented programming. Django ORM allows you to use the same Python API to interact with various relational databases including PostgreSQL, MySQL, Oracle, and SQLite. Django ORMContinue Reading

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A user profile consists of settings and information associated with a user. In this tutorial, you’ll learn how to allow users to update their profiles in Django applications. Installing the pillow package Since we’ll deal with images, we need to install the pillow package by using the following pip command: pip install PillowCode language:Continue Reading

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Introduction to the password reset in Django The following diagram illustrates the flow that allows a user to reset the password using an email address: First, the user clicks the Reset Password link on the login form: Django displays a form that allows the user to enter an email addressContinue Reading

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The Django FormView class allows you to create a view that displays a form. We’ll use the FormView class to create a registration form for the Todo App. Creating a signup form Create form.spy file in the users app and define the RegisterForm class as follows: from django import forms from django.contrib.auth.forms import UserCreationForm from django.contrib.auth.models import User class RegisterForm(UserCreationForm): emailContinue Reading

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Django’s LoginView allows you to display the login form and process the login action. We’ll use the LoginView class to create a login page for the Todo App. Creating & configuring users app for the todo project The users application will have the following functionalities: In this tutorial, we’ll focus on the Login / Logout functions. First,Continue Reading