Django, What is it, Why is it cool? 'Cause it is built on Python and has Pinax on top, and they are all Open Source http://oswco.com

Why do I care? Open Source Low cost Platform Agnostic No vendor lock in High Performance Modern architecture Standards Compliant Highly Modular Widely supported Internationalization support LtR language support http://oswco.com

Open Source

Low cost

Platform Agnostic

No vendor lock in

High Performance

Modern architecture

Standards Compliant

Highly Modular

Widely supported

Internationalization support LtR language support

Django Is a Python Framework Not just a Web framework What is Python? http://oswco.com

Traditional Approach vs. Django Build Data Dictionary Build Data Base Interface Build Authoring Tools Build Logic Paint Templates Build Data Flow Done Done Done Done Done Done Traditional Model Django http://oswco.com

Build Data Dictionary

Build Data Base Interface

Build Authoring Tools

Build Logic

Paint Templates

Build Data Flow

Python An Interpreted Language with extensive corporate usage and sponsorship Inherently Multiplatform Linux, Windows, Mac (some others) Inherently Multi Language (multi character support also) Many "packages" covering a wide variety of domains Math : scipy Image Recognition Corporate sponsorship: Google Microsoft (Iron Python) Sun (Jython) http://oswco.com

An Interpreted Language with extensive corporate usage and sponsorship

Inherently Multiplatform Linux, Windows, Mac (some others)

Inherently Multi Language (multi character support also)

Many "packages" covering a wide variety of domains

Math : scipy

Image Recognition

Corporate sponsorship:

Google

Microsoft (Iron Python)

Sun (Jython)

Django Lots of users: Google NASA PBS Bit-Bucket Newspapers http://oswco.com

Lots of users:

Google

NASA

PBS

Bit-Bucket

Newspapers

Django as a framework An MVC type framework (Called MVT in Django) M= Model, The database interface V= View, Logic for getting stuff in and out of the database T= Template, The display logic Closest competitor is Ruby on Rails Microsoft playing catch up in MVC frameworks still almost Beta Java examples are Grails, Spring, Struts or Java Server Faces PHP has dozens Symfony, CodeIgniter For the Web MVT (or MVC) is as important a concept as "Structured Programming" and dates back to 1979. Enables easier maintenance and independent development of functional modules with different skill sets http://oswco.com

An MVC type framework (Called MVT in Django)

M= Model, The database interface

V= View, Logic for getting stuff in and out of the database

T= Template, The display logic

Closest competitor is Ruby on Rails Microsoft playing catch up in MVC frameworks still almost Beta Java examples are Grails, Spring, Struts or Java Server Faces PHP has dozens Symfony, CodeIgniter

For the Web MVT (or MVC) is as important a concept as "Structured Programming" and dates back to 1979.

Enables easier maintenance and independent development of functional modules with different skill sets

Django layers (MVT) Model ..View...Template Model Database interface an abstraction Supports: Mysql MSsql Oracle Postgre Sql IBM Db2 Sql lite In general: change the DataBase and don't touch your code Define model, Admin gets generated automatically So does the database Most data editing http://oswco.com

Model ..View...Template

Model

Database interface an abstraction

Supports:

Mysql

MSsql

Oracle

Postgre Sql

IBM Db2

Sql lite

In general: change the DataBase and don't touch your code

Define model, Admin gets generated automatically

So does the database

Most data editing

Django View Most Business logic edits, calculations permissions many libraries available Context processors: More advanced business logic http://oswco.com

Most Business logic

edits, calculations

permissions

many libraries available

Context processors:

More advanced business logic

Template Simple template language Css is separate designed for non technical users such as designers Easily able to use other Template models (Jinga) Can be used with most advanced front end tools: Ajax Jquery Pyjamas (an upcoming Python Web Presentation tool) Flash Adobe Air http://oswco.com

Simple template language

Css is separate

designed for non technical users such as designers

Easily able to use other Template models (Jinga)

Can be used with most advanced front end tools:

Ajax

Jquery

Pyjamas (an upcoming Python Web Presentation tool)

Flash

Adobe Air

Other Django features Unique in being built on standard language and able to take advantage of libraries developed for other purposes, Imaging, graphics, scientific calculations and many more. Extensive configuration file Different Databases Different sites Different operating systems Different Caching frameworks Structure allows site optimization across specialized servers Static media Media And now also Pinax which is a collection of pre-configured applications written in Django http://oswco.com

Unique in being built on standard language and able to take advantage of libraries developed for other purposes, Imaging, graphics, scientific calculations and many more.

Extensive configuration file

Different Databases

Different sites

Different operating systems

Different Caching frameworks

Structure allows site optimization across specialized servers

Static media

Media

And now also Pinax which is a collection of pre-configured applications written in Django

Other Django features continued Loosely coupled Alternative Model layer, Sql Alchemy Alternative Template layer, Jinga, Jinga2 Many users constantly adding modules and features http://oswco.com

Loosely coupled

Alternative Model layer, Sql Alchemy

Alternative Template layer, Jinga, Jinga2

Many users constantly adding modules and features

Pinax Pre-assembled Django Applications Permissions Blog Social site Project site Sales site http://oswco.com

Pre-assembled Django Applications

Permissions

Blog

Social site

Project site

Sales site

Tools Python Python Debug tools Django debug toolbar Eclipse Pydev Pylint Pytest Doc test Unit test Embedded documentation via Sphinx Change control done with Distributed change control tool GIT (used by the Linux development team) http://oswco.com

Python

Python Debug tools

Django debug toolbar

Eclipse Pydev

Pylint

Pytest Doc test Unit test

Embedded documentation via Sphinx

Change control done with Distributed change control tool GIT (used by the Linux development team)