In this blog entry, I'll show you how you can add some module code to allow users to select different themes for their profile page. I decided to use the standard user-profile.tpl.php as the base template. I copied this file into my theme folder and replicated it a few times. I named the files:
user-profile-version-1.tpl.php
user-profile-version-2.tpl.php
For my example, I simply added the text "Version 1" and "Version 2" to the top of these files to show it's working, but you could revise the layout, add CSS, etc.
Next, I created a module to contain all the following code. I defined a hook_perm() and hook_menu() function to add a menu local task (tab) to the user page.
<?php
function MYMODULE_perm() {
return array(
'choose profile theme'
);
}
function MYMODULE_menu() {
$items = array();
$items['user/%user/choose-profile-them'] = array(
'title' => 'Choose Profile Theme',
'page callback' => '_MYMODULE_callback_choose_profile_theme',
'page arguments' => array(1),
'access callback' => 'user_access',
'access arguments' => array('choose profile theme'),
'type' => MENU_LOCAL_TASK,
);
return $items;
}
?>
Next, I defined the page callback to create a list of available templates for the user to choose from.
<?php
function _MYMODULE_callback_choose_profile_theme($user) {
// create an empty strong variable for page html
$html = "";
// define a list of available profile templates
$profileTemplates = array(
'user-profile-version-1' => 'Version 1',
'user-profile-version-2' => 'Version 2'
);
// loop through templates and ensure they exist
foreach ($profileTemplates as $template => $name) {
if (!file_exists(path_to_theme() . '/' . $template . '.tpl.php')) {
unset($profileTemplates[$name]);
}
}
if (count($profileTemplates)) {
$html .= drupal_get_form('_MYMODULE_callback_choose_profile_theme_form', $user, $profileTemplates);
} else {
$html .= "No profile themes currently exist.";
}
return $html;
}
?>
The following functions define the form array, and validation and submit handlers. When the form is submitted, the template option is saved to the user account variables using the user_save() function.
<?php
function _MYMODULE_callback_choose_profile_theme_form($form_state, $user, $profileTemplates) {
$form = array();
// add a select input element
$form['profileTemplate'] = array(
'#type' => 'select',
'#title' => t('Profile Template'),
'#options' => $profileTemplates,
'#default_value' => $GLOBALS['user']->profileTemplate
);
// add a submit button
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Submit')
);
// add hidden element for userID
$form['userID'] = array(
'#type' => 'hidden',
'#value' => $user->uid
);
return $form;
}
function _MYMODULE_callback_choose_profile_theme_form_validate($form, &$form_state) {
// TODO: add your additional form validation here
// ensure userID submitted matches current user
if ($form_state['values']['userID']!=$GLOBALS['user']->uid) {
form_set_error('', t('Error processing form.'));
}
}
function _MYMODULE_callback_choose_profile_theme_form_submit($form, &$form_state) {
// load user object
$user = user_load($form_state['values']['userID']);
// save profile template to user variables
user_save($user, array('profileTemplate' => $form_state['values']['profileTemplate']));
// set a message
drupal_set_message('Your profile template has been set.');
}
?>
Last, I defined the preprocess function to see if a template has been set in the user variables, and add the templates suggestion to change the user profile template.
<?php
function MYMODULE_preprocess_user_profile(&$variables) {
// ensure the template file exists, and is set in the user object
if (file_exists(path_to_theme() . '/' . $variables['user']->profileTemplate . '.tpl.php') && $variables['user']->profileTemplate) {
// set a templates suggestion
$variables['template_files'][] = $variables['user']->profileTemplate;
}
}
?>
As you can see below, when I choose the "Version 2" template option, the file "user-profile-version-2.tpl.php" is being loaded, and the text "Version 2" is displayed at the top of the page.
