ajax in django

So who's this dude?

Art(h)urWorking at Tesco Diets Taming the unruly browsers(more often the other way round)

http://slideshare.net/cistov

Not a 'how­to' talk

So, Ajax...

Clearly the most over­hyped cleaning liquid ever

Say Ajax again!

Widely adopted

Ajax in broad sense

DRY

Django Goals

1.Make web development stupidly fast

2. Automate the repetitive stuff

3. Practice loose coupling

4. Follow best practices

5. Be efficient

Pinax as 'Django with bigger opinion'

But...

'Django often gets marked down in a "framework comparisons" due to the lack of built in Ajax support. Personally I think that not shipping with a single library is a feature, not a bug.'

Simon Willison

Giants & their shoulders

Fred

Exhibit A: ASP.NET UpdatePanel

Concerns:

Multiple scriptsFilesizePerformanceGenerated Mark­upAccessbilitySEOTied to specific libraryExtension of built­in types

Exhibit B: Rails helpers

Concerns:

Generated Mark­upAccessbilitySEOTied to specific libraryExtension of built­in types

Exhibit C: Cappucino/GWT

Concerns:

AccessbilitySEO

If you have two separate versions, this approach 

may make sense

Chances are, you're not building GMail though

http://leandrovieira.com/projects/jquery/lightbox/

Should I even be bothered?

iPhone supports JavaScript

Ok, slow JavaScript, but still?

¿Habla HTML?

<rant>

</rant>

“Just as easy as not to”

3

Hooks

Clean HTML

Library­agnostic

Loose coupling

Drivers

Caching

Even back­end agnostic

Artur, this is all great, but Ruby meet up is next 

month

Meet 40 lines of messy code

HttpRequest.is_ajax()is your friend

Poor man's single­paged applications

Dependencies

Providing configuration data on page load

CSS classes?

Custom attributes?

data­* hell?

Inline objects?

Unit Testing

Extending functionality

Callbacks?

Custom events?

Inheritance?

Data Access?

XSS/XSRF & JSON APIs

GWT Query

Future?

Image Credits

http://www.flickr.com/photos/atauri/2358057325/http://www.flickr.com/photos/jeffmcneill/4169128852/http://www.flickr.com/photos/seandreilinger/3650862305/http://www.flickr.com/photos/lrargerich/2800244229/http://www.flickr.com/photos/mager/2803365394/http://www.flickr.com/photos/joyoflife/317125573/http://www.flickr.com/photos/young_einstein/74097753/http://www.flickr.com/photos/drewm/4749504388/

Questions?

http://www.twitter.com/cistovhttp://www.slideshare.net/cistov