Filebird custom code

functions.php

<?php

// FileBird Justified Gallery shortcode [filebird_justified_gallery folder="Folder name in FileBird"]
// integrates FileBird (https://wordpress.org/plugins/filebird/) and Justified Image Grid (https://justifiedgrid.com/) plugins 
function filebird_justified_gallery_function( $atts ) {
	$a = shortcode_atts( array( 'folder' => '', ), $atts );
	$foldername = esc_attr($a['folder']);
	if ($foldername != '') {
		global $wpdb;
		$folderid = $wpdb->get_var($wpdb->prepare("SELECT id FROM {$wpdb->prefix}fbv WHERE name = %s", $foldername));
		if ($folderid != '') {
			$images = $wpdb->get_col( $wpdb->prepare("SELECT attachment_id FROM {$wpdb->prefix}fbv_attachment_folder WHERE folder_id = %s", $folderid));
			$imageids = implode(', ' , $images);
			return do_shortcode( '[justified_image_grid ids="'. $imageids . '"]' );
		}	
		else {
			return '<p style="color:red;">FileBird Justified Gallery: Folder name not found.</p>';
		}
	}
}
add_shortcode('filebird_justified_gallery', 'filebird_justified_gallery_function');

?>