Python | ToDo webapp using Django

Difficulty Level : Medium
Last Updated : 07 May, 2021

Prerequisite : django installation
Django is a high-level Python Web framework based web framework that allows rapid development and clean, pragmatic design. today we will create a todo app created to understand the basics of Django. In this web app, one can create notes like Google Keep or Evernote.
Modules required :

django : install django
crispy_forms :

pip install --upgrade django-crispy-forms

basic setup :
Start a project by the following command –

django-admin startproject todo-site

Change directory to todo-site –

cd todo-site

Start the server- Start the server by typing following command in terminal –

python manage.py runserver

To check whether the server is running or not go to a web browser and enter http://127.0.0.1:8000/ as URL.
Now stop the server by pressing

ctrl-c

Let’s create an app now.

python manage.py startapp todo

Goto todo/ folder by doing : cd todo and create a folder with index.html file : templates/todo/index.html
Open the project folder using a text editor. The directory structure should look like this :

Now add todo app and crispty_form in your todo_site in settings.py.

Edit urls.py file in todo_site :

Python3

from django.contrib import admin
from django.urls import path
from todo import views
 
urlpatterns = [
    #####################home_page###########################################
    path('', views.index, name="todo"),
    ####################give id no. item_id name or item_id=i.id ############
    path('del/', views.remove, name="del"),
    ########################################################################
    path('admin/', admin.site.urls),
]

Edit models.py in todo :

Python3

from django.db import models
from django.utils import timezone
 
class Todo(models.Model):
    title=models.CharField(max_length=100)
    details=models.TextField()
    date=models.DateTimeField(default=timezone.now)
 
    def __str__(self):
        return self.title</pre>

Edit views.py in todo :

Python3

from django.shortcuts import render, redirect
from django.contrib import messages
 
## import todo form and models
 
from .forms import TodoForm
from .models import Todo
 
###############################################
 
def index(request):
 
    item_list = Todo.objects.order_by("-date")
    if request.method == "POST":
        form = TodoForm(request.POST)
        if form.is_valid():
            form.save()
            return redirect('todo')
    form = TodoForm()
 
    page = {
             "forms" : form,
             "list" : item_list,
             "title" : "TODO LIST",
           }
    return render(request, 'todo/index.html', page)
 
 
 
### function to remove item, it receive todo item id from url ##
def remove(request, item_id):
    item = Todo.objects.get(id=item_id)
    item.delete()
    messages.info(request, "item removed !!!")
    return redirect('todo')

Now create a forms.py in todo :

Python3

from django import forms
from .models import Todo
 
class TodoForm(forms.ModelForm):
    class Meta:
        model = Todo
        fields="__all__"</pre>

Register models to admin :

Navigate to templates/todo/index.html and edit it : link to index.html file
Make migrations and migrate it

python manage.py makemigrations
python manage.py migrate

Now you can run the server to see your todo app

python manage.py runserver

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