我有以下entityFieldQuery:
$tid = 1;
$articleQuery = new entityFieldQuery();
$nodes = $articleQuery
->entityCondition('entity_type', 'node')
->entityCondition('bundle', 'article')
->fieldCondition('article_category', 'tid', array($tid), 'NOT IN')
->propertyOrderBy('created', 'DESC')
->range(0, 9)
->execute();
然而它不起作用。如何获取没有特定分类术语的实体?