Getting All Your Web Apps

To Wear The Company Brand

Tim Knapp

Introductions

Plone developer since 2003

Vice-President of the NZPUG

Member of the Plone Foundation

The Problem

The Problem

Multiple web apps with different theming technologies

Wanting to use best-of-breed web apps

Migrations

Upgrades

There's 1 company theme but many different web applications with different theming approaches, for e.g. mailing list software, issue tracking software, CMS, blogging s/w, etc.

The company may wish to use for e.g. WordPress to manage their blog rather than whatever comes native with their CMS.

Management may decide for e.g. to move to a new CMS platform.

Upgrades do tend to also mean rewriting applications to work on the new version and this can be a long drawn out process. And usually by the time you've completed it the new version of the software has been released.

The Solution

Deliverance

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How Difficult Was This?

Why Use Deliverance?

Web designers don't need to learn a new theming technology

Can use an existing theme

Works with any web framework

Performance and flexibility

Uses standard HTML and CSS.

No need to integrate the theme into the web application technology. Can use it as is.

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Can either be run as a separate proxy server, as WSGI middleware or using an XSLT inline transformation hence allowing for better performance and flexibility.

Sites UsingDeliverance

plone.org - Before

plone.org - Deliveranced

repoze.org - Deliveranced

blog.repoze.org

bugs.repoze.org

lists.repoze.org

afpy.org - Before

afpy.org - Deliveranced

Also using PyQuery.

How Does It Work?

Move elements from your content

Into placeholders in your theme

Without touching either of them

The Nuts and Bolts

An XML rules file defines the actions you wish to perform on the content and theme

4 available actions

Select the items you wish to operate on via CSS selectors or XPath expressions

4 Deliverance Actions

replace

append/prepend

drop

replace

replaces something in the theme with something in the content

append and prepend

append puts things from the content after things in the theme, and prepend puts things from the content before things in the theme

drop

remove problematic elements from a theme or content

More Advanced Usage (PyQuery, etc)

Deployment Options

Proxy

WSGI middleware using repoze

collective.xdv

Q & A

Contact Details

e : tim@emergetec.com

w : www.emergetec.com

Presentation URLs

http://tinyurl.com/deliverance-preso

http://tinyurl.com/deliverance-preso-code

More info

http://www.slideshare.net/Jazkarta/deliverance-plone-theming-without-the-learning-curve-from-plone-symposium-east-2009

http://plone.org/theming

http://www.sixfeetup.com/blog/2009/4/27/deploying-plone-and-zine-together-with-deliverance-using-repoze

http://www.martinaspeli.net/articles/rolling-out-repoze

http://macadames.wordpress.com/2009/05/23/some-deliverance-tips

Image Credits

http://www.flickr.com/photos/aturkus/2557151889

http://www.flickr.com/photos/vox_efx/3051772438

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