如何在Ruby on Rails中获取参数？

Question

我想获得material_sort_id的值

Started GET "/materials?utf8=%E2%9C%93&material%5Bmaterial_sort_id%5D=1&material%5Bbrand_id%5D=1&commit=%E6%9F%A5%E8%AF%A2" for 127.0.0.1 at 2015-05-28 16:06:34 +0800
Processing by MaterialsController#index as HTML
        Parameters: {"utf8"=>"?", "material"=>{"material_sort_id"=>"1", "brand_id"=>"1"}, "commit"=>"??"}

这是我的代码:

puts params[:material_sort_id].present?

我弄错了.我怎么得到它？

Answer 1

params[:material][:material_sort_id]

你可以这样得到它