How to make the ethos post arrows only go the next post in a category?

[Peter_Fae]

Hey. I’m using ethos with articles that are in different categories by different authors. How do I make the ethos post arrows only go to the next post in a particular category?

[rad]

Hi Peter,

Thanks for reaching out.

The arrow navigation uses this https://codex.wordpress.org/Function_Reference/get_adjacent_post and this is the function used for that

  function x_entry_navigation() {

  $stack = x_get_stack();

  if ( $stack == 'ethos' ) {
    $left_icon  = '<i class="x-icon-chevron-left" data-x-icon-s="&#xf053;"></i>';
    $right_icon = '<i class="x-icon-chevron-right" data-x-icon-s="&#xf054;"></i>';
  } else {
    $left_icon  = '<i class="x-icon-arrow-left" data-x-icon-s="&#xf060;"></i>';
    $right_icon = '<i class="x-icon-arrow-right" data-x-icon-s="&#xf061;"></i>';
  }

  $is_ltr    = ! is_rtl();
  $prev_post = get_adjacent_post( true, '', false );
  $next_post = get_adjacent_post( true, '', true );
  $prev_icon = ( $is_ltr ) ? $left_icon : $right_icon;
  $next_icon = ( $is_ltr ) ? $right_icon : $left_icon;

  ?>

  <div class="x-nav-articles">

    <?php if ( $prev_post ) : ?>
      <a href="<?php echo get_permalink( $prev_post ); ?>" title="<?php __( 'Previous Post', '__x__' ); ?>" class="prev">
        <?php echo $prev_icon; ?>
      </a>
    <?php endif; ?>

    <?php if ( $next_post ) : ?>
      <a href="<?php echo get_permalink( $next_post ); ?>" title="<?php __( 'Next Post', '__x__' ); ?>" class="next">
        <?php echo $next_icon; ?>
      </a>
    <?php endif; ?>

  </div>

  <?php

  }

The article says

$taxonomy
(string) (optional) Taxonomy name, if $in_same_term is true.
Default: ‘category’

It’s already default to category and I checked and confirmed it, would you mind clarifying what you wish to achieve?

Thanks!