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如何进行 Facebook Graph API 调用，以便结果仅包含来自特定国家或语言的帖子？
我是 Rails 编程的新手，我正在尝试对对象进行基本保存。我的控制器中的代码如下：
def create @subject = Subject.new @subject.resource_id = params[:subject][:resource_id] @su