Exclude Pages from Default Menu in Twenty Eleven

If you are not using the custom menu, the theme uses `wp_page_menu()` as a fallback.

As always, start by creating a child theme of Twenty Eleven; http://codex.wordpress.org/Child_Themes

To exclude pages from the default menu, edit functions.php in the child theme and add something like:

//exclude pages from default menu//
function twentyelevenchild_page_menu_args( $args ) {
		$args['exclude'] = '17,38';
	return $args;
}
add_filter( 'wp_page_menu_args', 'twentyelevenchild_page_menu_args' );

The numbers refer to the page IDs of the pages you want to exclude.

A Sidebar Template for a Page in the ‘One-Column’ Layout in Twenty Eleven

This article describes the necessary coding to create a page template with a sidebar within a ‘one-column’ layout of Twenty Eleven; the example is for a right sidebar.

All changes have to be made in a child theme of Twenty Eleven.

Create your own page template from a copy of the sidebar-page.php template; call it sidebar-page-right-in-one-column.php; edit the Template Name and description.

<?php
/**
* Template Name: Sidebar right in Page in 'One-Column'
* Description: A Page Template that adds a right sidebar to a static page in the 'one-column' theme option
*
* @package WordPress
* @subpackage Twenty_Eleven
* @since Twenty Eleven 1.0
*/

get_header(); ?>

<div id="primary">
<div id="content" role="main">

<?php while ( have_posts() ) : the_post(); ?>

<?php get_template_part( 'content', 'page' ); ?>

<?php comments_template( '', true ); ?>

<?php endwhile; // end of the loop. ?>

</div><!-- #content -->
</div><!-- #primary -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>

Then make a few edits to sidebar.php and functions.php, to include the new page template into the coding;

start by editing sidebar.php to look like ( http://pastebin.com/pdqsRY8x ):

<?php
/**
* The Sidebar containing the main widget area.
*
* @package WordPress
* @subpackage Twenty_Eleven
* @since Twenty Eleven 1.0
*/

$options = twentyeleven_get_theme_options();
$current_layout = $options['theme_layout'];

if ( 'content' != $current_layout || is_page_template('sidebar-page-right-in-one-column.php') ) :
?>
<div id="secondary" role="complementary">
<?php if ( ! dynamic_sidebar( 'sidebar-1' ) ) : ?>

<aside id="archives">
<h3><?php _e( 'Archives', 'twentyeleven' ); ?></h3>
<ul>
<?php wp_get_archives( array( 'type' => 'monthly' ) ); ?>
</ul>
</aside>

<aside id="meta">
<h3><?php _e( 'Meta', 'twentyeleven' ); ?></h3>
<ul>
<?php wp_register(); ?>
<li><?php wp_loginout(); ?></li>
<?php wp_meta(); ?>
</ul>
</aside>

<?php endif; // end sidebar widget area ?>
</div><!-- #secondary .widget-area -->
<?php endif; ?>

Then add this section to functions.php to readjust the body_classes ( http://pastebin.com/nubXyyty ):

function twentyeleven_child_pagetemplates_body_classes( $wp_classes, $extra ){

$classes = array();

if( is_page_template( 'sidebar-page-right-in-one-column.php' ) ) :
// correction for the Sidebar Template 'right sidebar on page in one-column layout'
$classes[] = 'right-sidebar';
$classes[] = 'two-column';
$blacklist = array('one-column','content','left-sidebar','singular');
// Filter the body classes
foreach( $blacklist as $val ) {
if (!in_array($val, $wp_classes)) : continue;
else:
foreach($wp_classes as $key => $value) {
if ($value == $val) unset($wp_classes[$key]);
}
endif;
}
endif;

return array_merge($wp_classes, (array) $extra, $classes );
}

add_filter( 'body_class', 'twentyeleven_child_pagetemplates_body_classes', 20, 2 );

Last thing is to set the max width for the .page-template-sidebar-page-right-in-one-column-php #page to 690px, to keep the narrower width for the new page template.

Show Description for Header Images in Twenty Eleven

This code is for a child theme of Twenty Eleven, because the direct editing of the default theme is not recommended.

Since wp3.4, the function get_custom_header() takes care of some of the information of the header images, such as width, height, and also the description or attachment id.

If added in header.php of the child theme, before:

<?php endif; // end check for removed header image ?>

the code below extracts the description information and outputs it below the header image:

<?php 
if ( function_exists( 'get_custom_header' ) && is_child_theme() ) :
if( get_custom_header()->description ) {
$header_description = get_custom_header()->description;
} elseif ( is_singular() && has_post_thumbnail( $post->ID ) && ( /* $src, $width, $height */ $header_img = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( $header_image_width, max($header_image_width,$header_image_height) ) ) ) && $header_img[1] >= $header_image_width ) {
$header_img_details = get_posts(array('p' => get_post_thumbnail_id( $post->ID ), 'post_type' => 'attachment'));
$header_description = $header_img_details[0]->post_content;
} elseif( $att_id = get_custom_header()->attachment_id ) { 
$header_img_details = get_posts(array('p' => $att_id, 'post_type' => 'attachment'));
$header_description = $header_img_details[0]->post_content;
} 
if( $header_description ) echo '<span class="header-description">' . $header_description . '</span>'; 
endif; 
?>

A commented version of the code is in pastebin http://pastebin.com/VbjxyMRF .

Page Template Sidebar Overwrite Theme Options in Twenty Eleven

example of left and right sidebars in static pages of Twenty Eleven
Sidebar on the left or on the right within one Twenty Eleven child theme

Twenty Eleven already comes with a page template to add a sidebar to static pages. However, this sidebar will always be on the same side as the sidebar on the front  page, ruled by the ‘theme options’.
On some pages, you might want to show the sidebar on the opposite side.
This freedom of choice is possible with some special page templates and some coding in functions.php of the theme.

The following codes refer to a child theme of Twenty Eleven.

If you don’t want to follow the steps outlined in the Codex, you can download a ready-made child theme from quirm.net.

First step: in your child theme folder, create two new page templates – one for a fixed sidebar on the left, and the other for the sidebar on the right.

To begin with, copy the code of sidebar-page.php, and save it as sidebar-left-page.php and sidebar-right-page.php, resp.

The file names are important as they refer to the same names in the code for functions.php.

Second step: Change the line ‘ * Template Name: Sidebar Template’ to ‘ * Template Name: Left  Sidebar Template’ and ‘ * Template Name: Right Sidebar Template’, resp.; save the files.

Third step: add the following code to functions.php of your child theme:

function twentyeleven_child_pagetemplates_body_classes( $wp_classes, $extra ){

  $classes = array();

  if( is_page_template( 'sidebar-left-page.php' ) ) :
  // correction for the Left Sidebar Template
    $classes[] = 'left-sidebar';
    $blacklist = array('right-sidebar','singular');
    // Filter the body classes
    foreach( $blacklist as $val ) {
      if (!in_array($val, $wp_classes)) : continue;
      else:
      foreach($wp_classes as $key => $value) {
        if ($value == $val) unset($wp_classes[$key]);
      }
      endif;
    }
  endif;

  if( is_page_template( 'sidebar-right-page.php' ) ) :
  // correction for the Right Sidebar Template
    $classes[] = 'right-sidebar';
    $blacklist = array('left-sidebar','singular');
    // Filter the body classes
    foreach( $blacklist as $val ) {
      if (!in_array($val, $wp_classes)) : continue;
      else:
      foreach($wp_classes as $key => $value) {
        if ($value == $val) unset($wp_classes[$key]);
      }
      endif;
    }
  endif;

return array_merge($wp_classes, (array) $extra, $classes );
}

add_filter( 'body_class', 'twentyeleven_child_pagetemplates_body_classes', 20, 2 );

That code will correct the body_classes of the theme, which are central to the layout of your site.

Finished.

Now you will have two more page templates available in the ‘page attributes’ section when you create or edit a static page.

The sidebar position of these pages will be independant of the theme options (as long as one of the ‘content with sidebar’ options is ticked).