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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 4424 | if ( $update ) { |
| 4425 | /** |
| 4426 | * Fires immediately before an existing post is updated in the database. |
| 4427 | * |
| 4428 | * @since 2.5.0 |
| 4429 | * |
| 4430 | * @param int $post_ID Post ID. |
| 4431 | * @param array $data Array of unslashed post data. |
| 4432 | */ |
| 4433 | do_action( 'pre_post_update', $post_ID, $data ); |
| 4434 | |
| 4435 | if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) { |
| 4436 | if ( $wp_error ) { |
| 4437 | if ( 'attachment' === $post_type ) { |
| 4438 | $message = __( 'Could not update attachment in the database.' ); |
| 4439 | } else { |
| 4440 | $message = __( 'Could not update post in the database.' ); |
| 4441 | } |
| 4442 | |