为什么Active Admin不会正确排序此关联列

Question

痛苦地获得活动管理员以对关联的子列进行排序.我有一个有相关"用户"的个人资料.

ActiveAdmin.register Profile, as: "Member" do

def scoped_collection
  end_of_association_chain.includes(:user)
end

column "Referral", sortable: 'user.referrals' do |member|
  member.user.referrals
end

--error when sorting---

PG::Error: ERROR:  syntax error at or near "."
LINE 1: ... "users"."id" = "profiles"."user_id" ORDER BY user.referrals...
                                                         ^
: SELECT  "profiles"."id" AS t0_r0, "profiles"."actor_id" AS t0_r1,

Answer 1

它给出了SQL错误,因为表"user"不存在(预期的表可能是"users",复数).

您将需要使用以下可排序选项:

# Note sortable is using the plural form of users.
column "Referral", sortable: 'users.referrals' do |member|
  member.user.referrals
end

在连接表的列上进行排序时,它采用表单"table_name.column".