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WP_Customize_Manager::handle_changeset_trash_request()

Handle request to trash a changeset.

Source

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

public function handle_changeset_trash_request() {
		if ( ! is_user_logged_in() ) {
			wp_send_json_error( 'unauthenticated' );
		}

		if ( ! $this->is_preview() ) {
			wp_send_json_error( 'not_preview' );
		}

		if ( ! check_ajax_referer( 'trash_customize_changeset', 'nonce', false ) ) {
			wp_send_json_error(
				array(
					'code'    => 'invalid_nonce',
					'message' => __( 'There was an authentication problem. Please reload and try again.' ),
				)
			);
		}

		$changeset_post_id = $this->changeset_post_id();

		if ( ! $changeset_post_id ) {
			wp_send_json_error(
				array(
					'message' => __( 'No changes saved yet, so there is nothing to trash.' ),
					'code'    => 'non_existent_changeset',
				)
			);
			return;
		}

		if ( $changeset_post_id ) {
			if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->delete_post, $changeset_post_id ) ) {
				wp_send_json_error(
					array(
						'code'    => 'changeset_trash_unauthorized',
						'message' => __( 'Unable to trash changes.' ),
					)
				);
			}

			$lock_user = (int) wp_check_post_lock( $changeset_post_id );

			if ( $lock_user && get_current_user_id() !== $lock_user ) {
				wp_send_json_error(
					array(
						'code'     => 'changeset_locked',
						'message'  => __( 'Changeset is being edited by other user.' ),
						'lockUser' => $this->get_lock_user_data( $lock_user ),
					)
				);
			}
		}

		if ( 'trash' === get_post_status( $changeset_post_id ) ) {
			wp_send_json_error(
				array(
					'message' => __( 'Changes have already been trashed.' ),
					'code'    => 'changeset_already_trashed',
				)
			);
			return;
		}

		$r = $this->trash_changeset_post( $changeset_post_id );
		if ( ! ( $r instanceof WP_Post ) ) {
			wp_send_json_error(
				array(
					'code'    => 'changeset_trash_failure',
					'message' => __( 'Unable to trash changes.' ),
				)
			);
		}

		wp_send_json_success(
			array(
				'message' => __( 'Changes trashed successfully.' ),
			)
		);
	}

Uses

Uses Description
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::get_lock_user_data()

Get lock user data.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::trash_changeset_post()

Trash or delete a changeset post.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::changeset_post_id()

Get the changeset post ID for the loaded changeset.
wp-admin/includes/post.php: wp_check_post_lock()

Check to see if the post is currently being edited by another user.
wp-includes/capabilities.php: current_user_can()

Returns whether the current user has the specified capability.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::is_preview()

Is it a theme preview?
wp-includes/l10n.php: __()

Retrieve the translation of $text.
wp-includes/pluggable.php: is_user_logged_in()

Determines whether the current visitor is a logged in user.
wp-includes/pluggable.php: check_ajax_referer()

Verifies the Ajax request to prevent processing requests external of the blog.
wp-includes/functions.php: wp_send_json_error()

Send a JSON response back to an Ajax request, indicating failure.
wp-includes/functions.php: wp_send_json_success()

Send a JSON response back to an Ajax request, indicating success.
wp-includes/user.php: get_current_user_id()

Get the current user’s ID
wp-includes/post.php: get_post_type_object()

Retrieves a post type object by name.
wp-includes/post.php: get_post_status()

Retrieve the post status based on the post ID.

Changelog

Version Description
4.9.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_customize_manager/handle_changeset_trash_request