Source View: pre_{$field}

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

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
337           $format_to_edit = array('link_notes');
338           $value = apply_filters("edit_$field", $value, $bookmark_id);
339
340           if ( in_array($field, $format_to_edit) ) {
341                $value = format_to_edit($value);
342           } else {
343                $value = esc_attr($value);
344           }
345      } else if ( 'db' == $context ) {
346           $value = apply_filters("pre_$field", $value);
347      } else {
348           // Use display filters by default.
349           $value = apply_filters($field, $value, $bookmark_id, $context);
350
351           if ( 'attribute' == $context )
352                $value = esc_attr($value);
353           else if ( 'js' == $context )
354                $value = esc_js($value);
355      }