Source View: pre_{$taxonomy}_{$field}

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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
700      if ( 'edit' == $context ) {
701           $value = apply_filters("edit_term_$field", $value, $term_id, $taxonomy);
702           $value = apply_filters("edit_${taxonomy}_$field", $value, $term_id);
703           if ( 'description' == $field )
704                $value = format_to_edit($value);
705           else
706                $value = attribute_escape($value);
707      } else if ( 'db' == $context ) {
708           $value = apply_filters("pre_term_$field", $value, $taxonomy);
709           $value = apply_filters("pre_${taxonomy}_$field", $value);
710           // Back compat filters
711           if ( 'slug' == $field )
712                $value = apply_filters('pre_category_nicename', $value);
713                
714      } else if ( 'rss' == $context ) {
715           $value = apply_filters("term_${field}_rss", $value, $taxonomy);
716           $value = apply_filters("${taxonomy}_$field_rss", $value);
717      } else {
718           // Use display filters by default.