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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 |
|---|---|
| 4598 | if ( $update ) { |
| 4599 | /** |
| 4600 | * Fires immediately before an existing post is updated in the database. |
| 4601 | * |
| 4602 | * @since 2.5.0 |
| 4603 | * |
| 4604 | * @param int $post_id Post ID. |
| 4605 | * @param array $data Array of unslashed post data. |
| 4606 | */ |
| 4607 | do_action( 'pre_post_update', $post_id, $data ); |
| 4608 | |
| 4609 | if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) { |
| 4610 | if ( $wp_error ) { |
| 4611 | if ( 'attachment' === $post_type ) { |
| 4612 | $message = __( 'Could not update attachment in the database.' ); |
| 4613 | } else { |
| 4614 | $message = __( 'Could not update post in the database.' ); |
| 4615 | } |
| 4616 | |