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
2803
2804      clean_post_cache($post_ID);
2805
2806      if ( isset($post_parent) && $post_parent < 0 )
2807           add_post_meta($post_ID, '_wp_attachment_temp_parent', $post_parent, true);
2808
2809      if ( $update) {
2810           do_action('edit_attachment', $post_ID);
2811      } else {
2812           do_action('add_attachment', $post_ID);
2813      }
2814
2815      return $post_ID;
2816 }
2817
2818 /**
2819  * Delete an attachment.
2820  *
2821  * Will remove the file also, when the attachment is removed. Removes all post