轨道上的红宝石 - 如何从日期选择器传递和获取值

Question

im noob to rails. 如何从日期选择器获取值以将其传递给另一个方法，以便我可以运行查询。

这是我的控制器：

def index
    redirect_to(:action => 'step1') 
end
def step1
    @checkin = params[:checkin]
    @checkout = params[:checkout]
end
def step2
    checkin = @checkin
    checkout = @checkout
    @amenities = Amenity.available(checkin, checkout)
end

我的观点：

    <%= label_tag @checkin, "From:" %>
    <%= text_field_tag "checkin", @checkin %>
    <%= label_tag @checkout, "To:" %>
    <%= text_field_tag "checkout", @checkout %>
    <%= button_to "Show Availability", :action => "step2" %>

以及我运行查询的模型：

scope :available, lambda {
    |checkin, checkout| { 
      :select => 'amenities.*',
      :order => 'id',
      :conditions => ["
        amenities.id NOT IN 
        (
          SELECT aa.id from amenities aa, amenity_list al WHERE
          amenities.id = al.amenities_id AND
          (
            (? BETWEEN al.checkin AND al.checkout) OR
            (? BETWEEN al.checkin AND al.checkout)
          )
        )", 
        checkin, 
        checkout
      ] 
    }
  }

救命！谢谢.. :)

Answer 1

我会使用会话在几个步骤之间进行存储。另请查看表单向导插件/gem，它们也可以为您完成这项工作。

https://github.com/adkron/actsaswizard

查看此截屏视频，它可以帮助您：http://railscasts.com/episodes/217-multistep-forms