Django Cheatsheet Part-1

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What is Django?

Python-based web framework used for rapid development of web applications.

Django Cheatsheet

Installing Django + Setup

pip install django

Creating a project

The below command creates a new project named projectName

django-admin startproject projectName

Starting a server

The below command starts the development server.

python manage.py runserver

Django MVT

Django follows MVT(Model, View, Template) architecture.

Sample Django Model

The model represents the schema of the database.

from django.db import models

class Product(models.Model): # Product is the name of our model
    product_id=models.AutoField

Sample views.py

View decides what data gets delivered to the template.

from django.http import HttpResponse
def index(request):
    return HttpResponse("Django CodeWithHarry Cheatsheet")

Sample HTML Template

A sample .html file that contains HTML, CSS and Javascript.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>CodeWithHarry Cheatsheet</title>
</head>
<body>
    <h1>This is a sample template file.</h1>
</body>
</html>

Views in Django

Sample Function-Based Views

A python function that takes a web request and returns a web response.

from django.http import HttpResponse
def index(request):
    return HttpResponse("This is a function based view.")

Sample Class-Based Views

Django’s class-based views provide an object-oriented way of organizing your view code.

from django.views import View
class SimpleClassBasedView(View):
    def get(self, request):
        pass # Code to process a GET request

URLs in Django

Set of URL patterns to be matched against the requested URL.

Sample urls.py file1

from django.contrib import admin
from django.urls import path
from . import views
urlPatterns = [
    path('admin/', admin.site.urls),
    path('', views.index, name='index'),
    path('about/', views.about, name='about'),
]

Sample urls.py file2

from django.urls import include, path
urlpatterns = [
    # ... snip ...
    path('community/', include('aggregator.urls')),
    path('contact/', include('contact.urls')),
    # ... snip ...
]

Forms in Django

Similar to HTML forms but are created by Django using the form field.

Sample Django form

What is Django?

Python-based web framework used for rapid development of web applications.

Installing Django + Setup

pip install django

Creating a project

The below command creates a new project named projectName

django-admin startproject projectName

Starting a server

The below command starts the development server.

python manage.py runserver

Django MVT

Django follows MVT(Model, View, Template) architecture.

Sample Django Model

The model represents the schema of the database.

from django.db import models
class Product(models.Model): # Product is the name of our model
    product_id=models.AutoField

Sample views.py

View decides what data gets delivered to the template.

from django.http import HttpResponse
def index(request):
    return HttpResponse("Django CodeWithHarry Cheatsheet")

Sample HTML Template

A sample .html file that contains HTML, CSS and Javascript.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>CodeWithHarry Cheatsheet</title>
</head>
<body>
    <h1>This is a sample template file.</h1>
</body>
</html>

Views in Django

Sample Function-Based Views

A python function that takes a web request and returns a web response.

from django.http import HttpResponse
def index(request):
    return HttpResponse("This is a function based view.")

Sample Class-Based Views

Django’s class-based views provide an object-oriented way of organizing your view code.

from django.views import View
class SimpleClassBasedView(View):
    def get(self, request):
        pass # Code to process a GET request

URLs in Django

Set of URL patterns to be matched against the requested URL.

Sample urls.py file1

from django.contrib import admin
from django.urls import path
from . import views
urlPatterns = [
    path('admin/', admin.site.urls),
    path('', views.index, name='index'),
    path('about/', views.about, name='about'),
]

Sample urls.py file2

from django.urls import include, path
urlpatterns = [
    # ... snip ...
    path('community/', include('aggregator.urls')),
    path('contact/', include('contact.urls')),
    # ... snip ...
]

Forms in Django

Similar to HTML forms but are created by Django using the form field.

Sample Django form

from django import forms

# creating a form
class SampleForm(forms.Form):
    name = forms.CharField()
    description = forms.CharField()
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