Views and URLs

Introduction

Views handle the logic of your application. They take a web request and return a web response. Django supports both function-based views (FBVs) and class-based views (CBVs).

Function-based views

# views.py
from django.http import HttpResponse
from django.shortcuts import render, get_object_or_404
from .models import Post

def post_list(request):
    posts = Post.objects.filter(published=True)
    return render(request, 'blog/post_list.html', {'posts': posts})

def post_detail(request, pk):
    post = get_object_or_404(Post, pk=pk)
    return render(request, 'blog/post_detail.html', {'post': post})

# urls.py
from django.urls import path
from . import views

urlpatterns = [
    path('', views.post_list, name='post_list'),
    path('post/<int:pk>/', views.post_detail, name='post_detail'),
]

Class-based views

from django.views.generic import ListView, DetailView

class PostListView(ListView):
    model = Post
    template_name = 'blog/post_list.html'
    context_object_name = 'posts'
    queryset = Post.objects.filter(published=True)

class PostDetailView(DetailView):
    model = Post
    template_name = 'blog/post_detail.html'

Assignment