reaction rule example

example rule with or

    $rule = rules_reaction_rule();
    $rule->event('node_insert');
    $rule->condition('data_is', array('data:select' => 'node:type', 'op' => 'IN', 'value' => array('product')));
    $rule->condition(rules_or()
                ->condition('data_is', array('data:select' => 'node:product:0:type', 'value' => 'shirt'))
                ->condition('data_is', array('data:select' => 'node:product:author:uid', 'value' => 1))
              );
    $rule->action('data_set', array('data' => 'node:status', 'value' => 1));
$rule->save();