Rails 6.0.1

Active Admin 2.4.0

.

결론

Active Admin에서 Active Record를 사용하는 EnumsActiveRecord::Enum의 모델의 속성을 사용하는 필터를 콤보 상자 형식으로 만들려면 Enums의 키-value 매핑을 건네주는Hash.

# app/models/user.rb
class User
  enum status: { active: 0, suspended: 1, inactive: 2 }
end

# app/admin/user.rb
ActiveAdmin.register User do
  filter :status, as: :check_boxes, collection: User.statuses
  # User.statuses #=> { active: 0, suspended: 1, inactive: 2 }
end

active/suspended에서 검색

다음은 순조롭지 못한 상황에 대해 설명한다.

불순한 상황

키 목록만 전달User.statuses.keys하면 키 목록만 전달할 때 생성된 폼으로 서버에 제출하면 서버 측이 Ransack을 통해 검색할 때 순조롭게 진행되지 않습니다.

# app/admin/user.rb
ActiveAdmin.register User do
  filter :status, as: :check_boxes, collection: User.statuses.keys
  # User.statuses.keys #=> ["active", "suspended", "inactive"]
end

suspended에서 검색된 레코드만 표시active

무슨 문제 있어요?

생성된 창 구조

check_boxes Enums 키 목록만 Filter에 전달하면 생성된 폼의 input 탭value은 상태 문자열을 유지합니다.

<div class="check_boxes input optional filter_form_field filter_check_boxes" id="q_status_input">
  <fieldset class="choices">
    <legend class="label">
      <label>Status</label>
    </legend>
    <label for="q_status_preparing">
      <input type="checkbox" name="q[status_in][]" id="q_status_preparing" value="preparing"> preparing
    </label>
    <label for="q_status_transferring">
      <input type="checkbox" name="q[status_in][]" id="q_status_transferring" value="transferring">transferring
    </label>
    <label for="q_status_succeeded">
      <input type="checkbox" name="q[status_in][]" id="q_status_succeeded" value="succeeded">succeeded
    </label>
    <label for="q_status_failed"><input type="checkbox" name="q[status_in][]" id="q_status_failed" value="failed"> failed
    </label>
  </fieldset>
</div>

input 탭의 value 는 status 키입니다.커밋하면 서버측 Ransack이 이 값에 따라 레코드를 찾습니다.이때 Enums의 속성은 원래 수치로 검색되었지만 문자열을 교부하면 Enums의 최초 요소의 값(지금은 0)이 사용되었다.이 로그는 다음과 같습니다.

Started GET "/admin/users?q%5Bstatus_in%5D%5B%5D=active&q%5Bstatus_in%5D%5B%5D=suspended&commit=Filter&order=id_desc" for ::1 at 2019-11-22 10:24:30 +0900
Processing by Admin::UsersController#index as HTML
  Parameters: {"q"=>{"status_in"=>["active", "suspended"]}, "commit"=>"Filter", "order"=>"id_desc"}
  Rendering /Users/kymmt90/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activeadmin-2.4.0/app/views/active_admin/resource/index.html.arb
   (0.2ms)  SELECT COUNT(*) FROM (SELECT 1 AS one FROM "users" WHERE "users"."status" IN (0, 0) LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 30], ["OFFSET", 0]]
  CACHE  (0.0ms)  SELECT COUNT(*) FROM (SELECT 1 AS one FROM "users" WHERE "users"."status" IN (0, 0) LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 30], ["OFFSET", 0]]
   (0.1ms)  SELECT COUNT(*) FROM "users" WHERE "users"."status" IN (0, 0)
  CACHE  (0.0ms)  SELECT COUNT(*) FROM (SELECT 1 AS one FROM "users" WHERE "users"."status" IN (0, 0) LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 30], ["OFFSET", 0]]
  User Load (0.2ms)  SELECT "users".* FROM "users" WHERE "users"."status" IN (0, 0) ORDER BY "users"."id" desc LIMIT ? OFFSET ?  [["LIMIT", 30], ["OFFSET", 0]]
  Rendered /Users/kymmt90/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activeadmin-2.4.0/app/views/active_admin/resource/index.html.arb (Duration: 145.3ms | Allocations: 117153)
Completed 200 OK in 147ms (Views: 145.2ms | ActiveRecord: 0.6ms | Allocations: 118179)

이렇게 하면 어떤 체크 상자로 필터를 하든지 최초의 요소만 검색합니다.
정답인 경우 다음 테이블이 생성됩니다.

<div class="check_boxes input optional filter_form_field filter_check_boxes" id="q_status_input">
  <fieldset class="choices">
    <legend class="label">
      <label>Status</label>
    </legend>
    <label for="q_status_0">
      <input type="checkbox" name="q[status_in][]" id="q_status_0" value="0"> preparing
    </label>
    <label for="q_status_1">
      <input type="checkbox" name="q[status_in][]" id="q_status_1" value="1"> transferring
    </label>
    <label for="q_status_2">
      <input type="checkbox" name="q[status_in][]" id="q_status_2" value="2"> succeeded
    </label>
    <label for="q_status_3">
      <input type="checkbox" name="q[status_in][]" id="q_status_3" value="3"> failed
    </label>
  </fieldset>
</div>

input 탭의 value 는 정수값입니다. 이 옵션을 제출하면 정확하게 검색할 수 있습니다.이 로그는 다음과 같습니다.

Started GET "/admin/users?q%5Bstatus_in%5D%5B%5D=0&q%5Bstatus_in%5D%5B%5D=1&commit=Filter&order=id_desc" for ::1 at 2019-11-22 10:22:18 +0900
Processing by Admin::UsersController#index as HTML
  Parameters: {"q"=>{"status_in"=>["0", "1"]}, "commit"=>"Filter", "order"=>"id_desc"}
  Rendering /Users/kymmt90/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activeadmin-2.4.0/app/views/active_admin/resource/index.html.arb
   (0.2ms)  SELECT COUNT(*) FROM (SELECT 1 AS one FROM "users" WHERE "users"."status" IN (0, 1) LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 30], ["OFFSET", 0]]
  CACHE  (0.0ms)  SELECT COUNT(*) FROM (SELECT 1 AS one FROM "users" WHERE "users"."status" IN (0, 1) LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 30], ["OFFSET", 0]]
   (0.1ms)  SELECT COUNT(*) FROM "users" WHERE "users"."status" IN (0, 1)
  CACHE  (0.0ms)  SELECT COUNT(*) FROM (SELECT 1 AS one FROM "users" WHERE "users"."status" IN (0, 1) LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 30], ["OFFSET", 0]]
  User Load (0.1ms)  SELECT "users".* FROM "users" WHERE "users"."status" IN (0, 1) ORDER BY "users"."id" desc LIMIT ? OFFSET ?  [["LIMIT", 30], ["OFFSET", 0]]
  Rendered /Users/kymmt90/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activeadmin-2.4.0/app/views/active_admin/resource/index.html.arb (Duration: 142.3ms | Allocations: 117716)
Completed 200 OK in 144ms (Views: 142.2ms | ActiveRecord: 0.5ms | Allocations: 118736)

참고 자료

Active Administration frame work for Ruby on Rails의 "Custoomizing the IndexPage" 페이지