我对铁路非常新,所以我学习的时候 忍耐我。
我有一个模型, show
, 带有属性 preview_url
。 我如何构建一个只返回 shows
且有非n-null preview_url
的调用, 以及用什么最佳方式来形容控制器方法?
地方主机3: 30/shows/? preview_url?
提前感谢。
我对铁路非常新,所以我学习的时候 忍耐我。
我有一个模型, show
, 带有属性 preview_url
。 我如何构建一个只返回 shows
且有非n-null preview_url
的调用, 以及用什么最佳方式来形容控制器方法?
地方主机3: 30/shows/? preview_url?
提前感谢。
在您的 显示控制器
中, 您将会有一个名为 和_ preview
这样的动作 :
def with_preview
@shows = Show.where( preview_url IS NOT NULL ).all
end
此动作的url将是 /shows/ withth_ preview
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