我的 Rails 应用程序有一个完美运行的播放器类。可以从我的 rails 控制面板创建、删除和更新播放器，没有任何问题。
我希望远程对应方能够通过使用 JSON 请求创建玩家来加入乐趣。按照我的创建方法上方自动生成的 Rails 注释的建议：# POST /players.json我已经开始向localhost:3000/players.json
JSON
{
"player": {
"name": "test",
"room_id": 0,
"skin_id": 1,
"head_id": 2,
"torso_id": 3,
"legs_id": 4,
"x_position": 5,
"y_position": 6,
"direction": 7,
"action": "",
"gender": "f"
}
}
但是，我遇到了这个错误消息：
ActionController::ParameterMissing in PlayersController#create
param not found: player
所以我想我的问题是：我应该如何构造我发送的 JSON？
附加信息：
- 红宝石版本：2.0
- 导轨版本：4.0
- 我尝试使用Postman发送我的请求
更新 - 播放器参数
这是我的控制器中的播放器参数方法（根据要求）：
def player_params
params.require(:player).permit(:name, :room_id, :skin_id, :head_id, :torso_id, :legs_id, :x_position, :y_position, :direction, :action, :gender)
end
更新 2 - 播放器控制器
class PlayersController < ApplicationController
before_action :set_player, only: [:show, :edit, :update, :destroy]
skip_before_filter :verify_authenticity_token, :if => Proc.new { |c| c.request.format == 'application/json' }
# GET /players
# GET /players.json
def index
@players = Player.all
end
# GET /players/1
# GET /players/1.json
def show
end
# GET /players/new
def new
@player = Player.new
end
# GET /players/1/edit
def edit
@rooms = Room.all.map { |room| [room.name, room.id] }
end
# POST /players
# POST /players.json
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 action: 'show', status: :created, location: @player }
else
format.html { render action: 'new' }
format.json { render json: @player.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /players/1
# PATCH/PUT /players/1.json
def update
respond_to do |format|
if @player.update(player_params)
format.html { redirect_to @player, notice: 'Player was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: @player.errors, status: :unprocessable_entity }
end
end
end
# DELETE /players/1
# DELETE /players/1.json
def destroy
@player.destroy
respond_to do |format|
format.html { redirect_to players_url }
format.json { head :no_content }
end
end
def manage_furni
@player = Player.find(params[:id])
@furni = Furni.all
end
def add_furni
player = Player.find(params[:id])
player.furnis << Furni.find(params[:furni])
redirect_to manage_furni_path(player)
end
def remove_furni
player = Player.find(params[:id])
item = InventoryItem.find(params[:item])
player.inventory_items.delete(item)
redirect_to manage_furni_path(player)
end
private
# Use callbacks to share common setup or constraints between actions.
def set_player
@player = Player.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def player_params
params.require(:player).permit(:name, :room_id, :skin_id, :head_id, :torso_id, :legs_id, :x_position, :y_position, :direction, :action, :gender)
end
end
更新 3：日志
(
"Processing by PlayersController#create as JSON",
"Completed 400 Bad Request in 31ms",
"ActionController::ParameterMissing (param not found: player):",
"app/controllers/players_controller.rb:103:in `player_params'",
"app/controllers/players_controller.rb:40:in `create'",
"Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (0.5ms)",
"Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_trace.erb (0.9ms)",
"Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (0.8ms)",
"Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (16.3ms)"
){
}
