Question

我收到一个奇怪的错误：

ActiveRecord::StatementInvalid in AdminController#edit_user
NoMethodError: undefined method `empty?' for 663:Fixnum: SELECT privileges.*, ...

In: app/controllers/admin_controller.rb:75:in `edit_user'

以下是相关行：

#line #75 from admin_controller.rb
@privileges = Privilege.find_by_sql( "SELECT privileges.*, vendors.name AS vendor_name FROM privileges LEFT JOIN vendors ON vendors.id = rivileges.vendor_id WHERE user_id = ?  ORDER BY vendors.name", @user.id)

我可以通过取出占位符来修复它，但我不想这样做：

@privileges = Privilege.find_by_sql( "SELECT privileges.*, vendors.name AS vendor_name FROM privileges LEFT JOIN vendors ON vendors.id = privileges.vendor_id WHERE b2b_user_id = "+@user.id.to_s+"  ORDER BY vendors.name")

在Rails 3中没有弃用find_by_sql，我可以将该查询泵入数据库。

对我来说，奇怪的是没有“空”的号召？在我的admin_controller中。这是Rails的内部调用吗？

请告知。

由于

Answer 1

Rails 3.1中已弃用此语法。

你应该致电

@privileges = Privilege.find_by_sql ["SELECT privileges.*, vendors.name AS vendor_name FROM privileges LEFT JOIN vendors ON vendors.id = rivileges.vendor_id WHERE user_id = ?  ORDER BY vendors.name", @user.id]

Rails 3 ActiveRecord Migration - ActiveRecord :: StatementInvalid

1 个答案: