Changeset 48043 for trunk/src/wp-includes/post.php

Timestamp:

06/14/2020 09:40:10 PM (4 years ago)

Author:

SergeyBiryukov

Message:

Posts, Post Types: Introduce default_category_post_types filter.

The filter allows custom post types associated with the category taxonomy to opt in to requiring a default category, same as regular posts.

Props enrico.sorcinelli.
Fixes #43516.

File:

• trunk/src/wp-includes/post.php (modified) (2 diffs)

trunk/src/wp-includes/post.php

@@ -4690 +4690 @@
  * Set categories for a post.
  *
- * If the post categories parameter is not set, then the default category is
- * going used.
+ * If no categories are provided, the default category is used.
  *
  * @since 2.1.0
@@ -4707 +4706 @@
     $post_type   = get_post_type( $post_ID );
     $post_status = get_post_status( $post_ID );
-    // If $post_categories isn't already an array, make it one:
+
+    // If $post_categories isn't already an array, make it one.
     $post_categories = (array) $post_categories;
+
     if ( empty( $post_categories ) ) {
-        if ( 'post' === $post_type && 'auto-draft' !== $post_status ) {
+        /**
+         * Filters post types (in addition to 'post') that require a default category.
+         *
+         * @since 5.5.0
+         *
+         * @param array $post_types An array of post types. Default empty array.
+         */
+        $default_category_post_types = apply_filters( 'default_category_post_types', array() );
+
+        // Regular posts always require a default category.
+        $default_category_post_types = array_merge( $default_category_post_types, array( 'post' ) );
+
+        if ( in_array( $post_type, $default_category_post_types, true )
+            && is_object_in_taxonomy( $post_type, 'category' )
+            && 'auto-draft' !== $post_status
+        ) {
             $post_categories = array( get_option( 'default_category' ) );
             $append          = false;