Why views handle request logic in Django - See It in Action

Why Views Handle Request Logic in Django

📖 Scenario: You are building a simple Django web app that shows a greeting message based on the time of day. The app needs to decide what message to show when a user visits the page.

🎯 Goal: Build a Django view function that handles the request logic to decide the greeting message and returns an HttpResponse with it for display.

📋 What You'll Learn

Create a Django view function named greeting_view

Add a variable hour that stores the current hour (0-23)

Use if statements to decide the greeting message based on hour

Return an HttpResponse with the greeting message

💡 Why This Matters

🌍 Real World

Web apps need to decide what content to show users based on their request details, like time or user info.

💼 Career

Understanding how views handle request logic is essential for backend web development with Django.

1

Setup the Django view function

Create a Django view function called greeting_view that takes a request parameter.

Django

def greeting_view(request):
    # Your code here

Need a hint?

Start by defining a function named greeting_view that accepts request.

2

Add current hour variable

Inside greeting_view, create a variable called hour and set it to 14.

Django

from django.http import HttpResponse

def greeting_view(request):
    # Create variable hour with value 14
    # Your code here

Need a hint?

Assign the number 14 to a variable named hour.

3

Add logic to decide greeting message

Add if statements inside greeting_view to set a variable message to 'Good morning' if hour is less than 12, otherwise 'Good afternoon'.

Django

from django.http import HttpResponse

def greeting_view(request):
    hour = 14
    # Add if statement to set message
    # Your code here

Need a hint?

Use if hour < 12 to set message to 'Good morning', else set it to 'Good afternoon'.

4

Return HttpResponse with greeting message

Return an HttpResponse from greeting_view that contains the message variable.

Django

from django.http import HttpResponse

def greeting_view(request):
    hour = 14
    if hour < 12:
        message = 'Good morning'
    else:
        message = 'Good afternoon'
    # Return HttpResponse with message
    # Your code here

Need a hint?

Use return HttpResponse(message) to send the greeting back to the browser.