在 ActiveAdmin 过滤器中使用 ActiveRecord 范围

Question

In my rails project I have model :

class Panel < ActiveRecord::Base
  has_many :surveys

  scope :by_survey_name, ->(survey_name) {
    joins(:surveys).where('surveys.survey_name LIKE (?)', "%#{survey_name}%")
  }
end

And the question is how can I use this scope in activeadmin fiter?

Answer 1

Add to model:

  def self.ransackable_scopes(_auth_object = nil)
    [:by_survey_name]
  end

and then in resource:

  filter :by_survey_name, as: :string