Question

在编辑或创建帖子时，我遇到了覆盖命名路由参数的问题，我收到错误undefined method playerId for nil:NilClass。它仍然仅使用创建和编辑方法重定向到:id而不是：playerId参数。

下面，:playerId应该是101，但是6是:id，不确定为什么要提起它。

SELECT  `players`.* FROM `players` WHERE `players`.`playerId` = 6 LIMIT 1  [["playerId", "6"]]

路线

resources :players, param: :playerId

控制器

        def show
          @player = Player.find_by(playerId: params[:playerId])
          @season = PlayerStat.where("playerId = ?", @player.playerId).joins(:matches).where('matches.gameType = ?', 0).where('matches.teamId = ?', @player.teamId).group('year(matches.matchDate) DESC')
        end

         def edit
          end

          def create
            @player = Player.new(player_params)

            respond_to do |format|
              if @player.save
                format.html { redirect_to @player, notice: 'PLayer was successfully created.' }
                format.json { render :show, status: :created, location: @player }
              else
                format.html { render :new }
                format.json { render json: @player.errors, status: :unprocessable_entity }
              end
            end
          end

          def update
            @player = Player.find params[:playerId]
            respond_to do |format|
              if @player.update(player_params)
                format.html { redirect_to @player, notice: 'Player was successfully updated.' }
                format.json { render :show, status: :ok, location: @player }
              else
                format.html { render :edit }
                format.json { render json: @player.errors, status: :unprocessable_entity }
              end
            end
          end

          private
            def set_player
              @player = Player.find_by(playerId: params[:playerId])
            end

            def player_params
              params.require(:player).permit(:playerId, :first_name, :last_name, :dob, :teamId, :jumper_no, :height, :weight, :image, team_attributes: [:teamId, :name], player_stats_attributes: [:playerId, :gameDate, :kicks, :marks])
            end

Answer 1

未定义的方法playerId for nil：NilClass

成功cat /proc/asound/card1/pcm0c/sub0/hw_params access: MMAP_INTERLEAVED format: S32_LE subformat: STD channels: 12 rate: 8000 (8000/1) period_size: 400 buffer_size: 1200或params[:layerId]后问题为create nil ，因为未传递任何update 1}}用于playerId。因此redirect_to为@player，导致该错误。将代码更改为以下内容可以解决错误。

nil

同样适用于format.html { redirect_to player_path(@player.playerId), notice: 'PLayer was successfully created.' }。

Answer 2

您可以像这样定义完整路线：

put '/happy/node/:node_id', to: 'nodes#happy', as: :happy

覆盖命名路径参数编辑和创建

2 个答案: