Ruby on rails ActiveRecord:：语句无效未知列错误_Ruby On Rails_Ruby_Activerecord

Ruby on rails ActiveRecord:：语句无效未知列错误

ruby-on-rails ruby activerecord

Ruby on rails ActiveRecord:：语句无效未知列错误,ruby-on-rails,ruby,activerecord,Ruby On Rails,Ruby,Activerecord,为什么这样做很好： Tag.create(game_id: 1, tagged: u) 但这是： tags = Tag.where(game_id: 1, tagged: u).includes(:tagged) 给出错误： ActiveRecord::StatementInvalid: Mysql2::Error: Unknown column 'tags.tagged' in 'where clause': SELECT `tags`.* FROM `tags` WHERE `tags

为什么这样做很好：

Tag.create(game_id: 1, tagged: u)

但这是：

tags = Tag.where(game_id: 1, tagged: u).includes(:tagged)

给出错误：

ActiveRecord::StatementInvalid: Mysql2::Error: Unknown column 'tags.tagged' in 'where clause': SELECT `tags`.* FROM `tags`  WHERE `tags`.`game_id` = 1 AND `tags`.`tagged` = 1

顺便说一句，

是

ActiveRecord:：Base

subcass

标记

表格结构：

create_table :tags, force: true do |t|
    t.references :game
    t.references :tagged_by
    t.references :tagged
    t.timestamps
end

试着做

tags = Tag.includes(:tagged).where(game_id: 1, tagged_id: u.id)

列

taged

是否驻留在您的

tag

表格中您可以发布您的

tag

模型吗？同时显示表格结构