为ruby应用程序的api / v1中的POST请求更新数组[JSON]

Question

我正在使用Ruby，我正在尝试创建一个API以通过单个POST请求更新所有播放器。我必须更新在请求中具有“ id”的所有玩家。发布请求以Array [JSON]形式给出，因此我必须将每个JSON的所有ID与数据库中的播放器进行比较，并且必须更新具有指定ID的那些ID。这里是发布请求的代码：

{ 
"players": [
    {
      "player_id": 1,
      "shirt_number": "25",
      "speed": "47",
      "agility": "80",
      "shot": "62",
      "step": "24",
      "technique": "70",
      "contrasts": "59",
      "resistance": "65",
      "parades": "25",
      "aggressiveness": "60",
      "coldness": "50"
    },
    {
      "player_id": 2,
      "shirt_number": "11",
      "speed": “52",
      "agility": “78",
      "shot": “65",
      "step": “23",
      "technique": “60",
      "contrasts": “19",
      "resistance": “44",
      "parades": "25",
      "aggressiveness": "60",
      "coldness": "50"
    }
  ]
}

这里有代码和参数：

desc 'Update a team'
   params do
      requires :players, type: Array[JSON] do
         requires :id, type: Integer, desc: "Player ID"
         requires :shirt_number, type: String, desc: "Shirt Number"
         requires :speed, type: String, desc: "Speed"
         requires :agility, type: String, desc: "Agility"
         requires :shot, type: String, desc: "Shot"
         requires :step, type: String, desc: "Step"
         requires :technique, type: String, desc: "Technique"
         requires :constrasts, type: String, desc: "Constrasts"
         requires :resistance, type: String, desc: "Resistance"
         requires :parades, type: String, desc: "Parades"
         requires :aggressiveness, type: String, desc: "Aggressiveness"
         requires :coldness, type: String, desc: "Coldness"
     end
  end

post 'update_team' do
  params[:players].each do |player|
  p = Player.find_by(id: params[:id])
  p.update(player)
  end
end

但是它不起作用！我什么都没找到。有人可以帮我吗？预先非常感谢！

Answer 1

p = Player.find_by(id: params[:id])->从您发布的内容来看，没有id参数，如果存在，则每次循环时都将引用相同的参数。我认为您想要的是p = Player.find_by(id: player['player_id'])

[还要记住，Player.find_by(id: some_value)正在查看数据库ID，我想它可能与player_id不同。如果是这种情况，那么player_id可能应该是玩家表中的其他列，而您应该执行.find_by(player_id: player['player_id'])

此外，如果您只是要更新记录，则应使用update!