Rails遍历视图中的对象

Question

我有以下关联：

class Shop < ApplicationRecord
  has_many :opening_hours
end

class OpeningHour < ApplicationRecord
  belongs_to :shop
end

我在这样的视图中循环浏览商店：

<% @shop.each do |shop|%>
  <%= shop.street %>
  <%= shop.city %>
<% end %>

我在控制器内部有一个动作，我想从中检查商店是否开放：

def open
  @open = OpeningHour.where(day: Time.zone.now.wday).where('? BETWEEN opens AND closes', Time.zone.now).any?
end

我想用这样的东西来展示商店是否开放：

<% if %>
  <span style="color: black">Open</span>
<% else %>
  <span style="color: lightgrey">Close</span>
<% end %>

如何将上述if和else添加到循环中，以显示每个商店是开放还是关闭？

Answer 1

假设opening_hours属于shop型号

class Shop
  def open?
    opening_hours.where(day: Time.zone.now.wday).where('? BETWEEN opens AND closes', Time.zone.now).any?
  end
end

然后在视图中

<% if shop.open? %>
    <span style="color: black">Open</span>
<% else %>
    <span style="color: lightgrey">Close</span>
<% end %>