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
2399
2400      if ( $file )
2401           update_attached_file( $post_ID, $file );
2402
2403      clean_post_cache($post_ID);
2404
2405      if ( $update) {
2406           do_action('edit_attachment', $post_ID);
2407      } else {
2408           do_action('add_attachment', $post_ID);
2409      }
2410
2411      return $post_ID;
2412 }
2413
2414 /**
2415  * Delete an attachment.
2416  *
2417  * Will remove the file also, when the attachment is removed. Removes all post