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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
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.
Line | Code |
---|---|
1486 |
|
1487 | if ( !$lock = get_post_meta( $post->ID, '_edit_lock', true ) ) |
1488 | return false; |
1489 |
|
1490 | $lock = explode( ':', $lock ); |
1491 | $time = $lock[0]; |
1492 | $user = isset( $lock[1] ) ? $lock[1] : get_post_meta( $post->ID, '_edit_last', true ); |
1493 |
|
1494 | /** This filter is documented in wp-admin/includes/ajax-actions.php */ |
1495 | $time_window = apply_filters( 'wp_check_post_lock_window', 150 ); |
1496 |
|
1497 | if ( $time && $time > time() - $time_window && $user != get_current_user_id() ) |
1498 | return $user; |
1499 | return false; |
1500 | } |
1501 |
|
1502 | /** |
1503 | * Mark the post as currently being edited by the current user |
1504 | * |