嵌套has_one关联的强参数

我似乎错过了一些明显的东西，但我无法允许嵌套的has_one关联的属性。

控制器：

 def create @crossword = Crossword.new(crossword_params) if @crossword.save render :show, status: :created, location: [:api, @crossword] else render json: @crossword.errors, status: :unprocessable_entity end end def crossword_params params.require(:crossword).permit(:title, :grid_size, grid_size_attributes: [:rows, :columns]) end 

模型：

 validates :title, :grid_size, presence: true validates_associated :grid_size has_one :grid_size accepts_nested_attributes_for :grid_size 

请求：

 POST /api/crosswords.json HTTP/1.1 X-Accept: application/crosswords.v1 Content-Type: application/json Host: localhost:3000 Connection: close User-Agent: Paw/2.1 (Macintosh; OS X/10.10.0) GCDHTTPRequest Content-Length: 83 {"crossword":{"title":"My Aweosme Crossword","grid_size":{"rows":15,"columns":15}}} 

Rails控制台输出：

 Started POST "/api/crosswords.json" for 127.0.0.1 at 2014-12-19 11:05:13 -0500 Processing by Api::V1::CrosswordsController#create as JSON Parameters: {"crossword"=>{"title"=>"My Aweosme Crossword", "grid_size"=>{"rows"=>15, "columns"=>15}}} Can't verify CSRF token authenticity Unpermitted parameters: grid_size (0.1ms) BEGIN (0.1ms) ROLLBACK Completed 422 Unprocessable Entity in 2ms (Views: 0.1ms | ActiveRecord: 0.2ms) 

我错过了一些微不足道的东西吗？ 这似乎是每个人都这么说的。

Answer 1

在POST正文中将“grid_size”更改为“grid_size_attributes”。

如果您想继续使用“grid_size”，请更新您的crossword_params方法：

 def crossword_params params[:crossword][:grid_size_attributes] = params[:crossword][:grid_size] if params[:crossword][:grid_size] # NOTE :grid_size removed! params.require(:crossword).permit(:title, grid_size_attributes: [:rows, :columns]) end