Flags or unflags the node access grants for rebuilding.
If the argument isn't specified, the current value of the flag is returned. When the flag is set, a message is displayed to users with 'access administration pages' permission, pointing to the 'rebuild' confirm form. This can be used as an alternative to direct node_access_rebuild calls, allowing administrators to decide when they want to perform the actual (possibly time consuming) rebuild. When unsure if the current user is an administrator, node_access_rebuild() should be used instead.
$rebuild: (Optional) The boolean value to be written.
The current value of the flag if no value was provided for $rebuild.
function node_access_needs_rebuild($rebuild = NULL) {
if (!isset($rebuild)) {
return variable_get('node_access_needs_rebuild', FALSE);
}
elseif ($rebuild) {
variable_set('node_access_needs_rebuild', TRUE);
}
else {
variable_del('node_access_needs_rebuild');
}
}