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我对 ruby​​ on rails 很陌生……我的问题是从复选框中获取输出。如果复选框是false，我想显示每场音乐会，但我总是得到 else 条件......如何获得@concerts = Concert.find(:all, :order => "day")标准输出，如果 check_box 被选中，得到 else 条件？

#index.html.erb
check_box('dm', false, options = {}, checked_value = "1", unchecked_value = "0")


# controller.rb
def index
  if params[:dm] == '0'
    @concerts = Concert.find(:all, :order => "day")
  else
    @concerts = Concert.find(:all, :order => "day", :conditions => {:bool => false})
end

开发日志

在 2012-08-14 13:21:39 +0200 开始 GET "/" for 127.0.0.1 由 ConcertsController#index 处理为 HTML [1m[36mConcert Load (0.0ms)[0m [1mSELECT concerts.* FROM concertsWHERE concerts. bool= 0 ORDER BY day[0m [1m[35mConcert Load (15.6ms)[0m SELECT concerts.* FROM concertsORDER BY lineup [1m[36mConcert Load (0.0ms)[0m [1mSELECT DISTINCT day FROM concertsORDER BY day[0m [1m[35mConcert加载 (0.0ms)[0m SELECT DISTINCT club_id FROM concerts ... 在布局/应用程序中渲染的 Concerts/index.html.erb (78.0ms) 在 94ms 内完成 200 OK (查看次数: 78.0ms | ActiveRecord: 15.6ms)

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1 回答 1

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尝试这个

def index
  if params[:dm] == '0'
    @concerts = Concert.find(:all, :order => "day")
  else
    @concerts = Concert.find(:all, :order => "day", :conditions => {:bool => false})
end

控制器接收的复选框值是字符串形式的 0 或 1。此外，它应该是params[:dm].

于 2012-08-13T18:35:57.150 回答