mishterk

Using ACF JSON on WordPress multisite installations

ACF JSON can get a little messy where you need different field groups across your sub-sites. If you are using separate themes or separate child themes for each sub-site, you'll be fine as long as each theme/child-theme has its own /acf-json directory.

If, however, you want to enforce unique acf-json directories for each sub-site, you can do so using one of the following snippets.

1. Dynamic ACF JSON directory
   

mishterk

<?php


class PostTypeTaxonomyMirror {


	private $post_type;
	private $taxonomy;

mishterk

<?php

// e.g; 'mydomain.com'
$current_host = $_SERVER['HTTP_HOST'];

// This will return a WPLK_Domain object, if the domain can be found. Otherwise, NULL.
$domain = wplk_get_domain(  );

if($domain){
  $domain_id = $domain->post_id();

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SELECT * FROM some_table_name;

mishterk

<?php

add_action( 'acf/save_post', function ( $post_id ) {
	global $wpdb;

	// Get the meta ID from the custom DB table.
	$table_name = 'my_custom_db_table';
	$meta_id = $wpdb->get_var( $wpdb->prepare( "SELECT `id` FROM {$wpdb->prefix}{$table_name} WHERE `post_id` = %d", $post_id ) );

	// Choose a prefix format.

mishterk

<?php

/**
 * Class LocalValetDriver
 *
 * This class demonstrates how we might go about proxying any missing local images to a remote host. i.e; the production
 * site. This has been created with WordPress in mind but could be adjusted to work with any other system.
 */
class LocalValetDriver extends WordPressValetDriver {

mishterk

<?php

add_filter( 'af/field/prefill_value', 'prefill_form_field', 10, 4 );

/**
 * @param mixed $value
 * @param array $field
 * @param array $form
 * @param array $args
 *

mishterk

<?php

add_filter( 'af/form/args', 'afp_demo_support_dynamic_user_editing', 10, 2 );

/**
 * @param array $args
 * @param array $form
 *
 * @return array
 */

mishterk

<?php

add_action( 'wp_enqueue_scripts', function () {

	wp_register_script( 'my-script', get_stylesheet_directory_uri() . '/assets/js/my-script.js' );
	wp_enqueue_script( 'my-script' );

} );

add_filter( 'script_loader_tag', function ( $tag, $handle ) {

mishterk

<?php

$post_type = 'my-post-type';

add_filter( 'manage_' . $post_type . '_posts_columns', function ( $defaults ) {
	$defaults['custom-one'] = 'One';
	$defaults['custom-two'] = 'Two';

	return $defaults;
} );