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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 |
|---|---|
| 2792 | $post_name = wp_unique_post_slug($post_name, $post_ID, $post_status, $post_type, $post_parent); |
| 2793 | |
| 2794 | // expected_slashed (everything!) |
| 2795 | $data = compact( array( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_content_filtered', 'post_title', 'post_excerpt', 'post_status', 'post_type', 'comment_status', 'ping_status', 'post_password', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_parent', 'menu_order', 'guid' ) ); |
| 2796 | $data = apply_filters('wp_insert_post_data', $data, $postarr); |
| 2797 | $data = wp_unslash( $data ); |
| 2798 | $where = array( 'ID' => $post_ID ); |
| 2799 | |
| 2800 | if ( $update ) { |
| 2801 | do_action( 'pre_post_update', $post_ID, $data ); |
| 2802 | if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) { |
| 2803 | if ( $wp_error ) |
| 2804 | return new WP_Error('db_update_error', __('Could not update post in the database'), $wpdb->last_error); |
| 2805 | else |
| 2806 | return 0; |
| 2807 | } |
| 2808 | } else { |
| 2809 | if ( isset($post_mime_type) ) |
| 2810 | $data['post_mime_type'] = wp_unslash( $post_mime_type ); // This isn't in the update |