Django Forms

Learn how to manage forms in Django - For beginners
This page explains how to manage and validate a form in Django Framework. We assume the audience has already a Django project up and running. For those that start from nothing, feel free to access the resources mentioned below and come back here once the content is understood:
Topics covered by this tutorial
  • ✅ Create a new Django app
  • ✅ Define a new route
  • ✅ Update the configuration to include the new application
  • ✅ Code a simple form
  • ✅ Integrate the Form into a real page
  • ✅ Update the controller to check the form is validated
The video presentation of this tutorial can be found on Github:
Django For Beginners - How to add a new form

Create a new Application

For this, we will use the startapp Django subcommand:
$ python startapp forms
Add a simple view in forms - forms/
# File contents: forms/
from django.shortcuts import render
from django.http import HttpResponse
def index(request):
return HttpResponse("Hello Django - Forms")
Define the routing for our new app - forms/
from django.urls import path, re_path
from forms import views
urlpatterns = [
# The home page
path('forms/', views.index, name='home'),
Update settings to include the new app - config/
# File: config/ (partial content)
'forms', # <-- NEW
Update routing - config/
from django.contrib import admin
from django.urls import path, include # <-- UPDATED to add 'include'
urlpatterns = [
path("" , include("forms.urls")), # Forms app routing
Once we restart the project, the new route /forms should be visible:
Django Forms - A Hello-World type route

Define a new form

Inside the newly created app, we need to create a forms file and define the new Form Class object.
# File contents: forms/
from django import forms
class HelloForm(forms.Form):
title = forms.CharField()
message = forms.CharField()
email = forms.EmailField(required=False)
Controller code - forms/, the index() method
from .forms import HelloForm
def index(request):
if request.method == 'POST':
form = HelloForm(request.POST)
if form.is_valid():
return HttpResponse("Form is valid")
form = HelloForm()
return render(request, 'hello.html', {'form': form})
Update App configuration to include the new Templates folder, core/ for AppSeed projects.
FORMS_TEMPLATES = os.path.join(CORE_DIR, "forms/templates") # <-- NEW
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'APP_DIRS': True,
'context_processors': [
HTML page - defined in forms/templates folder:
<form action="" method="post">
{\% csrf_token \%} <!-- NOTE: remove the Back Slash character -->
{{ form.as_table }}
<br />
<input type="submit" value="Submit">
Django Forms - Completed with user Data
If all fields are provided, on submit, we should see the Form is valid message.
Update the form with a new field ID (numeric type):
from django import forms
class HelloForm(forms.Form):
title = forms.CharField()
message = forms.CharField()
id = forms.IntegerField() # <-- NEW form field
email = forms.EmailField(required=False)
The page server to the users is updated automaticaly to include the new field
Django Forms - Integer Field Added
Thanks for reading! For more topics, feel free to contact Appseed.


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