Rails 3.用於子關聯的ActiveAdmin過濾器

Question

我的貨物有一張發票； 發票屬於貨運。 當我嘗試這樣做時...

filter :customer, :collection => proc {(Customer.all).map{|c| [c.company_name, c.id]}}

O發生此錯誤(Mysql::Error: Unknown column 'invoices.customer_id' 。

customer_id列實際上在出貨表上。 由於發票屬於貨件，因此我通常通過執行invoice.shipment.customer_id來訪問customer_id。 但我不知道如何實現此目的以創建一個活動管理員過濾器。

完全錯誤： SQLite3::SQLException: no such column: invoices.customer_id: SELECT COUNT(DISTINCT count_column) FROM (SELECT "invoices"."id" AS count_column FROM "invoices" LEFT OUTER JOIN "customers" ON "customers"."id" = "invoices"."customer_id" LEFT OUTER JOIN "shipments" ON "shipments"."id" = "invoices"."shipment_id" WHERE "customers"."id" = 2 LIMIT 30 OFFSET 0) subquery_for_count

Answer 1

您可以使用嵌套屬性嗎？