change default image_size to empty

Support when no category specified

display-posts-shortcode-remote.php

@@ -11,7 +11,7 @@
  * Plugin Name:       Display Posts Shortcode - Remote
  * Plugin URI:        https://connections-pro.com/
  * Description:       An extension for the Display Posts Shortcode plugin which adds a shortcode for displaying posts from a remote WordPress site.
- * Version:           1.1
+ * Version:           1.1.1
  * Author:            Steven A. Zahm
  * Author URI:        https://connections-pro.com
  * License:           GPL-2.0+
@@ -24,7 +24,7 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 
 	final class Display_Posts_Remote {
 
-		const VERSION = '1.1';
+		const VERSION = '1.1.1';
 
 		/**
 		 * @var Display_Posts_Remote Stores the instance of this class.
@@ -253,7 +253,7 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 			$url = trailingslashit( $atts['url'] ) . 'wp-json/wp/v2/posts';
 			$url = add_query_arg( '_embed' , '', $url );
 
-			if ( ! empty( $atts['category_id'] ) ) {
+			if ( ! empty( $atts['category_id'] ) && ( is_array( $atts['category_id'] ) || false !== filter_var( $atts['category_id'], FILTER_VALIDATE_BOOLEAN ) ) ) {
 
 				if ( is_array( $atts['category_id'] ) ) {
 
@@ -319,7 +319,7 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 		public function getDefaults() {
 
 			return array(
-				'category_id'           => 0,
+				'category_id'           => '',
 				'content_class'         => 'content',
 				'date_format'           => '(n/j/Y)',
 				'include_content'       => FALSE,
@@ -327,7 +327,7 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 				'include_date_modified' => FALSE,
 				'include_link'          => TRUE,
 				'include_title'         => TRUE,
-				'image_size'            => 'thumbnail',
+				'image_size'            => '',
 				'no_posts_message'      => __( 'No posts to display.', 'display-posts-shortcode-remote' ),
 				'order'                 => 'desc',
 				'orderby'               => 'date',
@@ -353,6 +353,19 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 			$defaults = Display_Posts_Remote()->getDefaults();
 			$atts     = shortcode_atts( $defaults, $untrusted, 'display-posts-remote' );
 
+			$restSupportOrderby = array(
+				'author',
+				'date',
+				'id',
+				'include',
+				'modified',
+				'parent',
+				'relevance',
+				'slug',
+				'include_slugs',
+				'title',
+			);
+
 			$atts['category_id']           = wp_parse_id_list( $atts['category_id'] );
 			$atts['content_class']         = array_map( 'sanitize_html_class', ( explode( ' ', $atts['content_class'] ) ) );
 			$atts['date_format']           = sanitize_text_field( $atts['date_format'] );
@@ -364,7 +377,7 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 			$atts['image_size']            = sanitize_key( $atts['image_size'] );
 			$atts['no_posts_message']      = sanitize_text_field( $atts['no_posts_message'] );
 			$atts['order']                 = in_array( strtolower( $atts['order'] ), array( 'asc', 'desc' ) ) ? strtolower( sanitize_key( $atts['order'] ) ) : 'desc';
-			$atts['orderby']               = in_array( strtolower( $atts['orderby'] ), array( 'date', 'id', 'relevance', 'slug', 'title' ) ) ? strtolower( sanitize_key( $atts['orderby'] ) ) : 'date';
+			$atts['orderby']               = in_array( strtolower( $atts['orderby'] ), $restSupportOrderby ) ? strtolower( sanitize_key( $atts['orderby'] ) ) : 'date';
 			$atts['posts_per_page']        = filter_var(
 				$atts['posts_per_page'],
 				FILTER_VALIDATE_INT,
@@ -451,9 +464,12 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 
 					$title = '';
 				}
+				//print_r($post);
 
 				$imageAttributes = $self->getImageAttributes( $atts );
 
+				if ( ! empty ($atts['image_size'])) {
+
 				if ( $atts['image_size'] && $post->has_post_thumbnail() && $atts['include_link'] ) {
 
 					$image = '<a class="image" href="' . esc_url( $post->get_permalink() ) . '">' . $post->get_the_post_thumbnail( $atts['image_size'], $imageAttributes ) . '</a> ';
@@ -471,6 +487,8 @@ if ( ! class_exists( 'Display_Posts_Remote' ) ) {
 					$image = '<span class="image">' . $post->get_the_post_thumbnail( 'full', $imageAttributes ) . '</span> ';
 
 				}
+			}
+
 
 				if ( $atts['include_date'] ) {