ruby-on-rails-5 - rails 5 订购方式并包含在 has_many 中

Question

我在rails 3中有这条线：

has_many :balance_lines, :dependent => :destroy, :include => "budget_item", :order => "budget_items.position"

如何将其转换为 Rails 5？

Answer 1

这是正确的方法：

has_many :balance_lines, -> { order("budget_items.position").includes("budget_item") }, :dependent => :destroy