Functional FIPS: Learning PHP for Drupal Theming

Functional FIPS PHP for Drupal Designers and Themers www.hicktech.com @emmajanedotnet

About this talk ● There are a lot of theme snippets available in the Theme Guide. There is not, however, a lot of information about PHP which is the language that makes up these snippets. If you're tired of copying, pasting and praying and are ready to understand some of the magic behind those snippets, this session is for you! ● In this session you will learn how to manipulate and master: ● The very, very basics of PHP and the popular theming engine PHPtemplate ● Variables and tpl.php template files ● Arrays and objects and other crowbarworthy data containers. ● The really scary looking stuff that's in the mysterious file template.php ● Examples will be pulled from the Drupal.org Theme Guide as well as the wildly successful book on theming, Front End Drupal (coauthored by Emma Jane and Konstantin Kaefer).

Stick around, I've got copies to give away.

Drupal Theme Guide http://drupal.org/themeguide

Theme snippets http://drupal.org/node/45471

Learning through analogies

www.travelinghoedowners.com

bootstrapping

Variables http://www.jontwest.com/ProBono.php

Variables

Contents of variables exist inside their containers

Contents of variables exist inside their containers http://www.laboutiquedupetitprince.com/en/figures56/pixi81/pixifigurethelittle princesheepbox518.html

Regions http://opswingers.free.fr/cestquoi.htm

Regions

Functions http://www.dehnbase.org/sd/tutorial/counterrotate.php?p=4

Functions user_is_logged_in () user_access ('access administration pages') in_array ('admin', array_values ($user>roles))

Theming http://usawestwa.com/Outfit/

Theming www.squaredanceomaha.org/dress

PHPtemplate Decide on the dance Choose your clothes Dance the dance http://www.kodakgallery.com/Slideshow.jsp?mode=fromshare&Uc=6m9np57.9mj7q0yf&Uy=ripni&Ux=0

PHPtemplate Collect the content from Drupal using modules Run through the Print the variables Drupal theme in your template functions & your files custom theme layer http://www.kodakgallery.com/Slideshow.jsp?mode=fromshare&Uc=6m9np57.9mj7q0yf&Uy=ripni&Ux=0

How to create themes 1.Download an existing theme. 2.Look for variables and functions. 3.Alter the placement of the “printed” things. 4.Save and upload the theme files. 5.Clear the theme registry (Drupal admin). 6.Enjoy your new theme.

page.tpl.php template file <!DOCTYPE html PUBLIC "//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="<?php print $language>language ?>" xml:lang="<?php print $language>language ? >"> <head> <title><?php print $head_title ?></title> <?php print $head ?> <?php print $styles ?> </head> <body> <div id="container"> <div id="header"> <div id="logoWrapper"> <?php if ($logo) { ?> <div id="logo"> <a href="<?php print $base_path ?>" title="<?php print t('Home') ?>"><img src="<?php print $logo ?>" alt="<?php print t('Home') ?>" /></a> </div><?php } ?>

Variables must be printed <?php print ?>

Variables must be printed <title><?php print $head_title ?></title>

Zomg what are those variables? ● Look at /modules/system/page.tpl.php OR ● http://api.drupal.org/api/drupal/modules systempage.tpl.php/6

page.tpl.php template file <!DOCTYPE html PUBLIC "//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="<?php print $language>language ?>" xml:lang="<?php print $language>language ? >"> <head> <title><?php print $head_title ?></title> <?php print $head ?> <?php print $styles ?> </head> <body> <div id="container"> <div id="header"> <div id="logoWrapper"> <?php if ($logo) { ?> <div id="logo"> <a href="<?php print $base_path ?>" title="<?php print t('Home') ?>"><img src="<?php print $logo ?>" alt="<?php print t('Home') ?>" /></a> </div><?php } ?>

Conditionals if (you're the inside couple) { go clockwise } } else { go counter clockwise. } http://www.dehnbase.org/sd/tutorial/counterrotate.php?p=4

What's an “if”? if ($logo) { <?php print ?> }

Fancy data structures: arrays + objects Grouping and sorting your data

Fancy data structures: arrays Multiple “drawers” of sorted content Multiple values stored in one array

Devel Module: Themer Info

$node object $node>nid $node>body $node>content['body'][#value]

“Advanced” PHP ● Never be afraid to try something. ● Always back up your files first. ● Take a LOT of notes. ● Be bold! And be brave!

template.php: what's up with that? ● Preparing variables that weren't assembled by Drupal and its modules. ● Altering the contents of variables that were prepared by Drupal and its modules. ● Special theming functions to do fun things like 'edit this block' links and random images. ● Read the Zen base theme documentation and template.php file.

Using template.php Collect the content from Drupal using modules Create new Print the variables and run it through the information to feed in your template default theme functions to your theme files provided by Drupal. http://www.kodakgallery.com/Slideshow.jsp?mode=fromshare&Uc=6m9np57.9mj7q0yf&Uy=ripni&Ux=0

PHP Snippet from: http://drupal.org/node/21401 <?php if ($submitted) { ?> <span class="submitted"> <?php if ($node>type == 'blog') { print 'Posted ' . format_date($node>created, 'custom', "F jS, Y") . ' by ' . theme('username', $node); } else { print 'By ' . theme('username', $node) . ' <br /> ' . format_date($node>created, 'custom', "F jS, Y") ; } ?> </span> <?php } ?>

Summarizing PHP for Designers ● PHP is a linear “programming” language, just like a dance. ● PHP stores information in variables. ● Sometimes variables hold lots of information in special variables called “arrays.” ● Drupal has lots of magic variables that are loaded with content. Check out: http://drupal.org/themeguide

Theming http://usawestwa.com/Outfit/

Variables http://www.jontwest.com/ProBono.php

Regions http://opswingers.free.fr/cestquoi.htm

Functions http://www.dehnbase.org/sd/tutorial/counterrotate.php?p=4

Conditionals if (you're the inside couple) { go clockwise } } else { go counter clockwise. } http://www.dehnbase.org/sd/tutorial/counterrotate.php?p=4

Ready to rope yourself a theme? @emmajanedotnet www.hicktech.com < theming classes Front End Drupal < theming book http://www.flickr.com/photos/fkehren/3352577815/

Functional FIPS: Learning PHP for Drupal Theming

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