ruby-on-rails - 为什么我得到 "Unpermitted parameter: format"？

Question

我在 Rails Controller 中获取这些参数:

Parameters: {"id"=>"238", "user_id"=>1, "group_id"=>43, "title"=>"asdasdasd 1111 ultadas ult asdas", "description"=>"asdssss", "state_id"=>nil, "allow_anonymous_answer"=>false, "initial_message"=>"asdasdsadas", "final_message"=>"dasdasdsad", "poll_pages"=>[{"id"=>382, "poll_id"=>238, "title"=>"Pagina 1", "description"=>"Pagina 1", "position"=>1, "created_at"=>"2016-05-06T14:25:56.795Z", "updated_at"=>"2016-05-06T14:25:56.795Z"}], "poll"=>{"id"=>"238", "user_id"=>1, "group_id"=>43, "title"=>"asdasdasd 1111 ultadas ult asdas", "description"=>"asdssss", "state_id"=>nil, "allow_anonymous_answer"=>false, "initial_message"=>"asdasdsadas", "final_message"=>"dasdasdsad"}}

但我收到此消息:Unpermitted parameter: format

即使我正在使用:

params.permit(:id, :user_id, :title, :description, :state_id, :group_id, :allow_anonymous_answer, :initial_message, :final_message, poll: [:id, :user_id, :title, :description, :state_id, :group_id, :allow_anonymous_answer, :initial_message, :final_message], poll_pages: [:id, :poll_id, :title, :description, :position, :created_at, :updated_at])

Answer 1

您需要发送正确的格式，例如:

params.require(:MODEL).permit(:id, :user_id, :title, :description, :state_id, :group_id, :allow_anonymous_answer, :initial_message, :final_message, poll_attributes: [:id, :user_id, :title, :description, :state_id, :group_id, :allow_anonymous_answer, :initial_message, :final_message], poll_pages_attributes: [:id, :poll_id, :title, :description, :position, :created_at, :updated_at])  

还有 _attributes 用于您的许可参数中的嵌套属性:

poll_attributes: [:id, :user_id, :title, :description, :state_id, :group_id, :allow_anonymous_answer, :initial_message, :final_message]