Source View: add_attachment

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
1357
1358      if ( $file )
1359           update_attached_file( $post_ID, $file );
1360
1361      clean_post_cache($post_ID);
1362
1363      if ( $update) {
1364           do_action('edit_attachment', $post_ID);
1365      } else {
1366           do_action('add_attachment', $post_ID);
1367      }
1368
1369      return $post_ID;
1370 }
1371
1372 function wp_delete_attachment($postid) {
1373      global $wpdb;
1374      $postid = (int) $postid;
1375