- page_select field for the Settings > General > Pages;

includes/ajax/class-init.php

@@ -20,9 +20,22 @@ if ( ! class_exists( 'um\ajax\Init' ) ) {
 		 * @used-by \UM::includes()
 		 */
 		public function includes() {
+			$this->pages();
 			$this->secure();
 		}
 
+		/**
+		 * @since 2.8.3
+		 *
+		 * @return Pages
+		 */
+		public function pages() {
+			if ( empty( UM()->classes['um\ajax\pages'] ) ) {
+				UM()->classes['um\ajax\pages'] = new Pages();
+			}
+			return UM()->classes['um\ajax\pages'];
+		}
+
 		/**
 		 * @since 2.6.8
 		 *

includes/ajax/class-pages.php

@@ -0,0 +1,69 @@
+<?php
+namespace um\ajax;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+/**
+ * Class Pages
+ *
+ * @package um\ajax
+ */
+class Pages {
+
+	/**
+	 * Pages constructor.
+	 */
+	public function __construct() {
+		add_action( 'wp_ajax_um_get_pages_list', array( $this, 'get_pages_list' ) );
+	}
+
+	/**
+	 * AJAX callback for getting the pages list
+	 */
+	public function get_pages_list() {
+		UM()->admin()->check_ajax_nonce();
+
+		// we will pass post IDs and titles to this array
+		$return = array();
+
+		$pre_result = apply_filters( 'um_admin_settings_get_pages_list', false );
+
+		if ( false === $pre_result ) {
+			$query_args = array(
+				'post_type'           => 'page',
+				'post_status'         => 'publish', // if you don't want drafts to be returned
+				'ignore_sticky_posts' => 1,
+				'posts_per_page'      => 10, // how much to show at once
+				'paged'               => absint( $_GET['page'] ),
+				'orderby'             => 'title',
+				'order'               => 'asc',
+			);
+
+			if ( ! empty( $_GET['search'] ) ) {
+				$query_args['s'] = sanitize_text_field( $_GET['search'] ); // the search query
+			}
+
+			$search_results = new \WP_Query( $query_args );
+
+			if ( $search_results->have_posts() ) {
+				while ( $search_results->have_posts() ) {
+					$search_results->the_post();
+
+					// shorten the title a little
+					$title    = ( mb_strlen( $search_results->post->post_title ) > 50 ) ? mb_substr( $search_results->post->post_title, 0, 49 ) . '...' : $search_results->post->post_title;
+					$title    = sprintf( __( '%s (ID: %s)', 'ultimate-member' ), $title, $search_results->post->ID );
+					$return[] = array( $search_results->post->ID, $title ); // array( Post ID, Post Title )
+				}
+			}
+
+			$return['total_count'] = $search_results->found_posts;
+		} else {
+			// got already calculated posts array from 3rd-party integrations (e.g. WPML, Polylang)
+			$return = $pre_result;
+		}
+
+		wp_send_json( $return );
+	}
+}