Rails 3查询多维数组

Question

我有一个名为@venues的数组，其中包含半径范围内的所有餐馆。每个地点has_many菜肴，我想在venue中插入一系列这些菜肴。

@venues = Venue.within(radius, :origin => [lat, lng]).order('distance ASC')

@venues.each do |venue|
  dishes = venue.dishes.where("? BETWEEN DATE(served_from) AND DATE(served_until)", Date.today)
  # insert dishes into venue
end

如何将菜肴插入场地，以便我可以访问场地的所有可用菜肴：@venues[i].dishes？

Answer 1

在Dish本身添加范围可能更有意义：

scope :today, :conditions => ["? BETWEEN DATE(served_from) AND DATE(served_until)", Date.today]

有了这个，您可以使用dishes

访问可用的@venues[i].dishes.today