Previous/Next post in same category

  • Resolved demonboy

    (@demonboy)


    10 years, 2 months ago

    I’ve amended template-tags.php in the inc folder to read:

    if ( ! function_exists( 'isola_paging_nav' ) ) :
/**
 * Display navigation to next/previous set of posts when applicable.
 */
function isola_paging_nav() {
	// Don't print empty markup if there's only one page.
	if ( $GLOBALS['wp_query']->max_num_pages < 2 ) {
		return;
	}
	?>
	<nav class="navigation paging-navigation" role="navigation">
		<h1 class="screen-reader-text"><?php _e( 'Posts navigation', 'isola' ); ?></h1>
		<div class="nav-links">

			<?php if ( get_next_posts_link() ) : ?>
			<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">&larr;</span> Older posts', 'isola', TRUE ) ); ?></div>
			<?php endif; ?>

			<?php if ( get_previous_posts_link() ) : ?>
			<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">&rarr;</span>', 'isola', TRUE ) ); ?></div>
			<?php endif; ?>

		</div><!-- .nav-links -->
	</nav><!-- .navigation -->
	<?php
}
endif;

if ( ! function_exists( 'isola_post_nav' ) ) :
/**
 * Display navigation to next/previous post when applicable.
 */
function isola_post_nav() {
	// Don't print empty markup if there's nowhere to navigate.
	$previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
	$next     = get_adjacent_post( false, '', false );

	if ( ! $next && ! $previous ) {
		return;
	}
	?>
	<nav class="navigation post-navigation" role="navigation">
		<h1 class="screen-reader-text"><?php _e( 'Post navigation', 'isola', TRUE ); ?></h1>
		<div class="nav-links">
			<?php
				previous_post_link( '<div class="nav-previous">%link</div>', _x( '<span class="meta-nav">&larr;</span> %title', 'Previous post link', 'isola', TRUE ) );
				next_post_link(     '<div class="nav-next">%link</div>',     _x( '%title <span class="meta-nav">&rarr;</span>', 'Next post link',     'isola', TRUE ) );
			?>
		</div><!-- .nav-links -->
	</nav><!-- .navigation -->
	<?php
}
endif;

    The TRUE parameter should only link to the next post in the same category, but it isn’t, it’s being ignored.

    Any clues?

Viewing 3 replies - 1 through 3 (of 3 total)

  • Hi there, the function isola_paging_nav() isn’t meant for single-post navigation, but for displaying older/newer batches of posts on the blog index, for example. The function you’re looking for to navigate from post to post is isola_post_nav().

    To set this up properly so your changes aren’t overwritten when you next update the theme, you’ll need to first create a child theme. Here are some guides in case you haven’t made one before:

    https://codex.www.ads-software.com/Child_Themes
    https://op111.net/53/
    https://vimeo.com/39023468

    In your child theme, create a new file in a plain-text editor called functions.php, and place this function at the top:

    <?php function isola_post_nav() {
	// Don't print empty markup if there's nowhere to navigate.
	$previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
	$next     = get_adjacent_post( false, '', false );

	if ( ! $next && ! $previous ) {
		return;
	}
	?>
	<nav class="navigation post-navigation" role="navigation">
		<h1 class="screen-reader-text"><?php _e( 'Post navigation', 'isola' ); ?></h1>
		<div class="nav-links">
			<?php previous_post_link( '<div class="nav-previous">%link</div>', 'Previous post in category', TRUE ); ?>
			<?php next_post_link( '<div class="nav-next">%link</div>', 'Next post in category', TRUE ); ?>
		</div><!-- .nav-links -->
	</nav><!-- .navigation -->
	<?php
}

    That should do it – I tested it on my end and it’s working. Let me know how it goes!

    Thread Starter demonboy

    (@demonboy)

    Yep, that did it. Once again, thank you, Kathryn.

    Cheers,

    Jamie

    You’re very welcome.

Viewing 3 replies - 1 through 3 (of 3 total)
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