如何在Active Admin中爲方法（非字段）編寫過濾器？

Question

我有一個Active Admin索引頁面用於某些資源。

ActiveAdmin.register Request do 
    index do 
    column :created_at 
    column :content 
    column "Approved", :approved? 
    default_actions 
    end 

    filter :created_at 
    filter :content 
    filter :approved? 
end 

問題是，它不生成approved?請求過濾器（但它正確地產生塔）。我認爲這是因爲approved是一種方法，如果approved_at不是nil，則返回true。如何在這種情況下寫入過濾器？

Answer 1

試試這個創建使用範圍過濾器按鈕：

# model/request.rb 
scope :approved, where("approved_at IS NOT NULL") 

# or...if you have other default values on approved_at column you can try this 
scope :approved, where("approved IS NOT", nil) 
scope :approved, where("approved IS NOT ?", "") 

#app/admin/requests.rb 
scope :approved 

在主動管理領域的一些詳細信息：http://activeadmin.info/docs/2-resource-customization.html#scoping_the_queries