Source View: auth_post_meta_{$meta_key}

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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
1161      case 'edit_post_meta':
1162      case 'delete_post_meta':
1163      case 'add_post_meta':
1164           $post = get_post( $args[0] );
1165           $caps = map_meta_cap( 'edit_post', $user_id, $post->ID );
1166
1167           $meta_key = isset( $args[ 1 ] ) ? $args[ 1 ] : false;
1168
1169           if ( $meta_key && has_filter( "auth_post_meta_{$meta_key}" ) ) {
1170                $allowed = apply_filters( "auth_post_meta_{$meta_key}", false, $meta_key, $post->ID, $user_id, $cap, $caps );
1171                if ( ! $allowed )
1172                     $caps[] = $cap;
1173           } elseif ( $meta_key && is_protected_meta( $meta_key, 'post' ) ) {
1174                $caps[] = $cap;
1175           }
1176           break;
1177      case 'edit_comment':
1178           $comment = get_comment( $args[0] );
1179           $post = get_post( $comment->comment_post_ID );