Preventing Display of Post Gallery when on Homepage - wordpress

Question

I would like to prevent the post's gallery from displaying when the post is listed on the homepage.
I'm thinking it will utilize add_filter and apply_filter when post in on homepage.
You can add a gallery to posts by clicking the add media button. You can select existing images or upload additional images that will create a gallery within the post. This embeds a shortcode in $post['content'] that looks like [gallery ids="37,38,39,40,41,42].
The issue is that by default it displays when the post is included on homepage as well as the individual post itself.
Update: This is what I am doing right now to achieve the requirement. I suspect there will be a more elegant way.
<div class="entry-content">
<!-- Begin Post Content -->
<?php if ( is_single() ) : ?>
<?php the_content( __( 'Continue reading <span class="meta-nav">→</span>', 'faceboard' ) ); ?>
<?php else : // Filter Gallery ShortCode out ?>
<?php
$content = '';
$content = get_the_content();
$content = preg_replace('/\[gallery\sids="[0-9]+(,[0-9]+)*,?"\s?(royalslider="\d")?\]/s',"",$content);
echo wpautop( $content, 1);
?>
<?php endif; // is_single() ?>
<!-- End Post Content -->
<?php wp_link_pages( array( 'before' => '<div class="page-links">' . __( 'Pages:', 'faceboard' ), 'after' => '</div>' ) ); ?>
</div><!-- .entry-content -->

Answer 1

You can add the following to your theme's functions.php file or to a custom plugin (better, as you can disable it without touching the theme).
The filter post_gallery is used to create your own gallery, and the $content parameter comes empty by default. If it returns empty, the original [gallery] shortcode is processed.
Here, we are using a dummy empty value, so the filter is tricked into thinking that we are passing some actual gallery content, but it's just a white space.
add_filter( 'post_gallery', 'disable_home_galleries_so_17635042', 10, 2 );
function disable_home_galleries_so_17635042( $content, $atts )
{
// http://codex.wordpress.org/Conditional_Tags
if( is_home() )
return ' ';
return $content;
}