From 336d718bfc0e1e3276cc426044e611025f39be5d Mon Sep 17 00:00:00 2001
From: Drew Jaynes <drewapicture@git.wordpress.org>
Date: Sat, 1 Jul 2017 05:14:18 +0000
Subject: [PATCH] General: Add support for the post type archive description to
 `get_the_archive_description()`, and thereby also
 `the_archive_description()`.

Props henrywright.
Fixes #38487.


git-svn-id: https://develop.svn.wordpress.org/trunk@40976 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/general-template.php | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/wp-includes/general-template.php b/src/wp-includes/general-template.php
index 3b186757f1..e4516328bf 100644
--- a/src/wp-includes/general-template.php
+++ b/src/wp-includes/general-template.php
@@ -1540,18 +1540,34 @@ function the_archive_description( $before = '', $after = '' ) {
 }
 
 /**
- * Retrieve category, tag, term, or author description.
+ * Retrieves the description for an author, post type, or term archive.
  *
  * @since 4.1.0
  * @since 4.7.0 Added support for author archives.
+ * @since 4.9.0 Added support for post type archives.
  *
  * @see term_description()
  *
  * @return string Archive description.
  */
 function get_the_archive_description() {
+	$description = '';
+
 	if ( is_author() ) {
 		$description = get_the_author_meta( 'description' );
+	} elseif ( is_post_type_archive() ) {
+		$post_type = get_query_var( 'post_type' );
+
+		if ( is_array( $post_type ) ) {
+			$post_type = reset( $post_type );
+		}
+
+		$post_type_obj = get_post_type_object( $post_type );
+
+		// Check if a description is set.
+		if ( isset( $post_type_obj->description ) ) {
+			$description = $post_type_obj->description;
+		}
 	} else {
 		$description = term_description();
 	}