Book Image

Mastering Django: Core

By : Nigel George
Book Image

Mastering Django: Core

By: Nigel George

Overview of this book

Mastering Django: Core is a completely revised and updated version of the original Django Book, written by Adrian Holovaty and Jacob Kaplan-Moss - the creators of Django. The main goal of this book is to make you a Django expert. By reading this book, you’ll learn the skills needed to develop powerful websites quickly, with code that is clean and easy to maintain. This book is also a programmer’s manual that provides complete coverage of the current Long Term Support (LTS) version of Django. For developers creating applications for commercial and business critical deployments, Mastering Django: Core provides a complete, up-to-date resource for Django 1.8LTS with a stable code-base, security fixes and support out to 2018.
Table of Contents (33 chapters)
Mastering Django: Core
Credits
About the Author
www.PacktPub.com
Preface
Free Chapter
1
Introduction to Django and Getting Started

Complex PDF's


If you're creating a complex PDF document with ReportLab, consider using the io library as a temporary holding place for your PDF file. This library provides a file-like object interface that is particularly efficient. Here's the above Hello World example re-written to use io:

from io import BytesIO 
from reportlab.pdfgen import canvas 
from django.http import HttpResponse 
 
def some_view(request): 
    # Create the HttpResponse object with the appropriate PDF headers. 
    response = HttpResponse(content_type='application/pdf') 
    response['Content-Disposition'] = 'attachment;   
      filename="somefilename.pdf"' 
 
    buffer = BytesIO() 
 
    # Create the PDF object, using the BytesIO object as its "file." 
    p = canvas.Canvas(buffer) 
 
    # Draw things on the PDF. Here's where the PDF generation happens. 
    # See the ReportLab documentation for the full list of functionality. 
...