WP_Customize_Manager::grant_edit_post_capability_for_changeset( string[] $caps, string $cap, int $user_id, array $args )

Re-map ‘edit_post’ meta cap for a customize_changeset post to be the same as ‘customize’ maps.


There is essentially a "meta meta" cap in play here, where ‘edit_post’ meta cap maps to the ‘customize’ meta cap which then maps to ‘edit_theme_options’. This is currently required in core for wp_create_post_autosave() because it will call _wp_translate_postdata() which in turn will check if a user can ‘edit_post’, but the the caps for the customize_changeset post type are all mapping to the meta capability. This should be able to be removed once #40922 is addressed in core.

See also



(string[]) (Required) Array of the user's capabilities.


(string) (Required) Capability name.


(int) (Required) The user ID.


(array) (Required) Adds the context to the cap. Typically the object ID.


(array) Capabilities.


File: wp-includes/class-wp-customize-manager.php

public function grant_edit_post_capability_for_changeset( $caps, $cap, $user_id, $args ) {
		if ( 'edit_post' === $cap && ! empty( $args[0] ) && 'customize_changeset' === get_post_type( $args[0] ) ) {
			$post_type_obj = get_post_type_object( 'customize_changeset' );
			$caps          = map_meta_cap( $post_type_obj->cap->$cap, $user_id );
		return $caps;


Version Description
4.9.0 Introduced.

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