Question

我通过其matchName和teamName找到了该子文档，并且我想显示指定teamName在players []中的内容。日志可帮助您了解我的追求。

这是架构

 var MatchSchema({
   matchName: {
     type: String,
     unique: true,
   },
   teams: [{
     teamName: String,
     players: [] <------ this is the array I want to display
   }]
 });

这是findOneAndUpdate

var filter = {matchName: 'matchOne', 'teams.teamName': 'teamOne'}
var update = {$push: {'teams.$.players': 'playerOne'}}
var option = {new: true}

Match.findOneAndUpdate(filter, update, option, function (err, result) {
  if (err) {
    console.log(err);
  } else {
      console.log(result); <--- First Test
    }
})

第一个测试记录此

{ _id: 5b8899ebe9bc4450811b18a5,
  matchName: 'matchOne',
  teams: 
   [ { players: ['playerOne'], _id: 5b8899efe9bc4450811b18a6, teamName: 'teamOne' } ]
} // Logs the Entire Match

第二次考试

Match.findOneAndUpdate(filter, update, option, function (err, result) {
      if (err) {
        console.log(err);
      } else {
          console.log(result.teams); <--- Second Test
        }
    })

第二个测试记录

CoreMongooseArray [
  { players: [ 'playerOne' ], <--- what I want to log
    _id: 5b8862912733184d499c2f2e,
    teamName: 'teamOne' } 
] // Logs the Array of the Teams

现在...我想知道当我指定teamName时如何记录玩家数组。像...

console.log(teams.teamName = "teamOne".players);

________ 更新 _________

我使用_id方法显示玩家数组

console.log(result.teams.id(req.params.id).players)

我为团队提供了一个_id对象，以便可以将.id方法用于猫鼬

 var MatchSchema({
   matchName: {
     type: String,
     unique: true,
   },
   teams: [{
     _id: String, <------ can be used in the .id method to identify this team
     teamName: String,
     players: []
   }]
 });

猫鼬通过子文档ID查找，然后在数组中显示项目

0 个答案: