Rails 4销毁操作不起作用

Question

我正在为新的cmd烦人的问题而苦苦挣扎：方法destroy无法正常工作。 一切正常，这是日志：

Started DELETE "/admin/videos/1" for 127.0.0.1 at 2013-12-19 19:02:53 +0100
Processing by Admin::VideosController#destroy as HTML
  Parameters: {"authenticity_token"=>"yIFTvqxF+ablO8xakneLmlUBLyewaH2syX2Q6QE+9rQ=", "id"=>"1"}
  User Load (0.9ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 ORDER BY "users"."id" ASC LIMIT 1
Redirected to http://localhost:3000/admin/videos
Completed 302 Found in 5ms (ActiveRecord: 0.9ms)

我的链接是：

= link_to admin_video_path(video), method: :delete, title: "Delete" do
  %i.fa.fa-trash-o
  Canc

查询后，记录仍然存在！

Answer 1

这是destroy方法的外观（在控制器内部）的示例代码：

def destroy
    modelnamehere.find(params[:id]).destroy
    flash[:success] = "modelnamehere deleted."
    redirect_to modelnamehere_url
end

Answer 2

确保没有没有返回true之前的before_destroy回调。 即使无意中返回nil也会因为它停止方法链而阻止成功停止destroy方法。

tl; dr确保在任何成功情况下，任何before_destroy回调始终返回true 。