MjHead

<?php
/**
 * Given example can be used to format timestamp into human-readable date, but the same logic can be used for any modifications
 */
add_filter( 'jet-engine/admin-filters/filter-label', function( $label, $filter ) {
	if ( 'meta' === $filter['type'] && '__date' === $filter['meta_key'] ) {
		$label = date_i18n( get_option( 'date_format' ), $label );
	}
	return $label;
}, 10, 2 );

MjHead

<?php
/**
 * Allows to update required CCT items on change posts in selected user meta data store
 */
add_filter( 'jet-engine/data-stores/ajax-store-fragments', function( $fragments, $store ) {

	// Replace 'quoted-list' with your actual Data Store slug
	$my_store = 'quoted-list';

	// Replace 'users_wishlist' with you actual CCT slug

MjHead

add_action( 'init', function() {

	// replace your-post-type-slug and your-meta-field-name with your actual data
	register_post_meta( 'your-post-type-slug', 'your-meta-field-name', array(
		'single'         => true,
		'type'           => 'string',
		'default'        => '',
		'auth_callback'  => '__return_true',
		'show_in_rest'   => true,
	) );

MjHead

<?php
add_action( 'wp_ajax_jet_ajax_search',        'my_get_search_results', 0 );
add_action( 'wp_ajax_nopriv_jet_ajax_search', 'my_get_search_results', 0 );

function my_get_search_results() {

	$request      = $_GET['data'];
	$search_query = urldecode( $request['value'] );
	$per_page     = ( int ) $request['limit_query_in_result_area'];

MjHead

<?php

/**
 * Note! Always include mcros file only on 'jet-engine/register-macros' hook - before base class is not avaialable, 
 * after - all macros already registered and you can't insert a new one.
 */
add_action( 'jet-engine/register-macros', function() {
	require_once get_theme_file_path( 'macros.php' );
	new My_JE_Macros();
} );

MjHead

<?php

add_filter( 'jet-engine/listing/grid/posts-query-args', function( $args, $widget, $settings ) {

	if ( 'custom-query' === $settings['_css_classes'] ) {

		$args['meta_query'][] = array(
			'relation' => 'OR',
			0 => array(
				'key' => 'submission-date',

MjHead

<?php
/**
 * Adds custom fields into the insert new related item popup.
 
 * Hook name - jet-engine/relations/types/posts/create-fields - depends on type of created item,
 * for CPT it will be - jet-engine/relations/types/posts/create-fields
 * for terms - jet-engine/relations/types/terms/create-fields
 * for users - jet-engine/relations/types/mix/create-fields/users
 *
 * just replace 'jobs' in the example with your actual post type/taxonomy slug

MjHead

<?php
/**
 * Get fields for the given context and object
 * Should be called on hook 'init' with priority 11 or later
 */

// Fields for Post post type
$post_fields = jet_engine()->meta_boxes->get_fields_for_context( 'post_type', 'post' );

// Fields for Product post type

MjHead

<?php
/**
 * Update related item from form action/notification
 *
 * @param  array  $args [description]
 * @return [type]       [description]
 */
function my_update_related_items( $args = array() ) {

	$relation  = ! empty( $args['relation'] ) ? $args['relation'] : false;

MjHead

<?php

add_filter( 'jet-engine/listings/ajax-listing-url', function( $url ) {
	return esc_url( admin_url( 'admin-ajax.php' ) );
} );