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2ndkauboy/optn.php Secret

Created Aug 22, 2020
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Order Post Type Navigation
<?php
/**
* Order Post Type Navigation
*
* @package optn
* @author Bernhard Kau
* @license GPLv3
*
* @wordpress-plugin
* Plugin Name: Order Post Type Navigation
* Plugin URI: https://gist.github.com/2ndkauboy/64ddd0ba066208c8ea694f3cecf587ed
* Description: Order the Post Type Navigation by name.
* Version: 1.0.0
* Author: Bernhard Kau
* Author URI: https://kau-boys.de
* Text Domain: optn
* License: GPLv3
* License URI: https://www.gnu.org/licenses/gpl-3.0.txt
*/
/**
* Register a custom post type `sponsor`.
*/
function optn_register_post_type() {
register_post_type(
'sponsor',
array(
'label' => __( 'Sponsor', 'optn' ),
'public' => true,
'has_archive' => true,
'show_ui' => true,
)
);
}
add_action( 'init', 'optn_register_post_type' );
/**
* Order sponsors by name.
*
* @param WP_Query $query The WP_Query instance (passed by reference).
*/
function optn_pre_get_posts_order_by_name( $query ) {
if ( is_admin() || ! $query->is_main_query() ) {
return;
}
if ( is_post_type_archive( 'sponsor' ) ) {
$query->set( 'orderby', 'name' );
$query->set( 'order', 'ASC' );
}
}
add_action( 'pre_get_posts', 'optn_pre_get_posts_order_by_name' );
/**
* Set the `WHERE` clause to order adjacent partners by name.
*
* @param string $where The `WHERE` clause in the SQL.
* @param bool $in_same_term Whether post should be in a same taxonomy term.
* @param array $excluded_terms Array of excluded term IDs.
* @param string $taxonomy Taxonomy. Used to identify the term used when `$in_same_term` is true.
* @param WP_Post $post WP_Post object.
*
* @return string
*/
function optn_get_adjacent_post_where( $where, $in_same_term, $excluded_terms, $taxonomy, $post ) {
if ( 'sponsor' !== $post->post_type ) {
return $where;
}
return preg_replace( '/p.post_date (.) ([^A-Z]+)/', "p.post_title $1 '{$post->post_title}' ", $where );
}
add_filter( 'get_previous_post_where', 'optn_get_adjacent_post_where', 10, 5 );
add_filter( 'get_next_post_where', 'optn_get_adjacent_post_where', 10, 5 );
/**
* Set the `ORDER BY` clause to order adjacent partners by name.
*
* @param string $order_by The `ORDER BY` clause in the SQL.
* @param WP_Post $post WP_Post object.
* @param string $order Sort order. 'DESC' for previous post, 'ASC' for next.
*
* @return string
*/
function optn_get_adjacent_post_sort( $order_by, $post, $order ) {
if ( 'sponsor' !== $post->post_type ) {
return $order_by;
}
return preg_replace( '/p.post_date/', 'p.post_title', $order_by );
}
add_filter( 'get_previous_post_sort', 'optn_get_adjacent_post_sort', 10, 3 );
add_filter( 'get_next_post_sort', 'optn_get_adjacent_post_sort', 10, 3 );
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@2ndkauboy 2ndkauboy commented Aug 22, 2020

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