ruby-on-rails - 如何将 ActiveRecord_AssociationRelation 转换为 ActiveRecord 中的数组？

Question

如何转换 ActiveRecord_AssociationRelation到 Rails 模型实例数组中？

我有 after_save 中的代码像这样的钩子(Hook):

class Like < ApplicationRecord
  belongs_to :likee, class_name: 'User', foreign_key: 'likee_id'
  belongs_to :liker, class_name: 'User', foreign_key: 'liker_id'

  after_save :mutual_like?

  private

  def mutual_like?
    if liker.likes.where(likee: liker) // returns collection proxy but I want to return an array of model instances so that I can create another model

    end
  end
end

有没有办法返回一个实例数组呢？

供引用的表格:

  create_table "likes", force: :cascade do |t|
    t.integer  "liker_id",      null: false
    t.integer  "likee_id",      null: false
    ...
  end

我认为问题在于 Rails 没有根据 likee_id/liker_id 的外键关联模型。

Answer 1

试试 ActiveRecord#to_a .liker.likes.where(likee: liker).to_a

to_a() public

Converts relation objects to Array.