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wp_delete_post ›

Seit1.0.0
Veraltetn/v
wp_delete_post ( $postid = 0, $force_delete = false )
Parameter: (2)
  • (int) $postid Optional. Post ID. Default 0.
    Erforderlich: Nein
    Standard:
  • (bool) $force_delete Optional. Whether to bypass trash and force deletion. Default false.
    Erforderlich: Nein
    Standard: false
Siehe:
Gibt zurück:
  • (array|false|WP_Post) False on failure.
Definiert in:
Codex:

Trash or delete a post or page.

When the post and page is permanently deleted, everything that is tied to it is deleted also. This includes comments, post meta fields, and terms associated with the post.

The post or page is moved to trash instead of permanently deleted unless trash is disabled, item is already in the trash, or $force_delete is true.



Quellcode

function wp_delete_post( $postid = 0, $force_delete = false ) {
	global $wpdb;

	if ( !$post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $postid)) )
		return $post;

	if ( !$force_delete && ( $post->post_type == 'post' || $post->post_type == 'page') && get_post_status( $postid ) != 'trash' && EMPTY_TRASH_DAYS )
		return wp_trash_post( $postid );

	if ( $post->post_type == 'attachment' )
		return wp_delete_attachment( $postid, $force_delete );

	/**
	 * Filters whether a post deletion should take place.
	 *
	 * @since 4.4.0
	 *
	 * @param bool    $delete       Whether to go forward with deletion.
	 * @param WP_Post $post         Post object.
	 * @param bool    $force_delete Whether to bypass the trash.
	 */
	$check = apply_filters( 'pre_delete_post', null, $post, $force_delete );
	if ( null !== $check ) {
		return $check;
	}

	/**
	 * Fires before a post is deleted, at the start of wp_delete_post().
	 *
	 * @since 3.2.0
	 *
	 * @see wp_delete_post()
	 *
	 * @param int $postid Post ID.
	 */
	do_action( 'before_delete_post', $postid );

	delete_post_meta($postid,'_wp_trash_meta_status');
	delete_post_meta($postid,'_wp_trash_meta_time');

	wp_delete_object_term_relationships($postid, get_object_taxonomies($post->post_type));

	$parent_data = array( 'post_parent' => $post->post_parent );
	$parent_where = array( 'post_parent' => $postid );

	if ( is_post_type_hierarchical( $post->post_type ) ) {
		// Point children of this page to its parent, also clean the cache of affected children.
		$children_query = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_parent = %d AND post_type = %s", $postid, $post->post_type );
		$children = $wpdb->get_results( $children_query );
		if ( $children ) {
			$wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => $post->post_type ) );
		}
	}

	// Do raw query. wp_get_post_revisions() is filtered.
	$revision_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_parent = %d AND post_type = 'revision'", $postid ) );
	// Use wp_delete_post (via wp_delete_post_revision) again. Ensures any meta/misplaced data gets cleaned up.
	foreach ( $revision_ids as $revision_id )
		wp_delete_post_revision( $revision_id );

	// Point all attachments to this post up one level.
	$wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'attachment' ) );

	wp_defer_comment_counting( true );

	$comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $postid ));
	foreach ( $comment_ids as $comment_id ) {
		wp_delete_comment( $comment_id, true );
	}

	wp_defer_comment_counting( false );

	$post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $postid ));
	foreach ( $post_meta_ids as $mid )
		delete_metadata_by_mid( 'post', $mid );

	/**
	 * Fires immediately before a post is deleted from the database.
	 *
	 * @since 1.2.0
	 *
	 * @param int $postid Post ID.
	 */
	do_action( 'delete_post', $postid );
	$result = $wpdb->delete( $wpdb->posts, array( 'ID' => $postid ) );
	if ( ! $result ) {
		return false;
	}

	/**
	 * Fires immediately after a post is deleted from the database.
	 *
	 * @since 2.2.0
	 *
	 * @param int $postid Post ID.
	 */
	do_action( 'deleted_post', $postid );

	clean_post_cache( $post );

	if ( is_post_type_hierarchical( $post->post_type ) && $children ) {
		foreach ( $children as $child )
			clean_post_cache( $child );
	}

	wp_clear_scheduled_hook('publish_future_post', array( $postid ) );

	/**
	 * Fires after a post is deleted, at the conclusion of wp_delete_post().
	 *
	 * @since 3.2.0
	 *
	 * @see wp_delete_post()
	 *
	 * @param int $postid Post ID.
	 */
	do_action( 'after_delete_post', $postid );

	return $post;
}