javascript - 用 Mongoose 插入子数组

Question

我有一个具有三个深度级别的数据模型。

var job = mongoose.Schema({
        id:Number,
        jobName:String    
    });

var demo = mongoose.Schema({

            id:Number,
            demoName:String,
            job:[job]
    });

var ExerciseSchema = mongoose.Schema({

            id:Number,
            name:String,
            area:String,
            medicalObj:[demo]   
    });

var Exercise = mongoose.model('Exercise', ExerciseSchema);

我想把新对象压入第二个嵌套数组

我正在尝试这种方式，但不起作用:

    Exercise.update({'area':area},{$push:{"medicalObj.job":{jobName:'Andrea'}}},{upsert:true},function(err){

        if(err){
                console.log("ERROR" + err);
        }else{
                console.log("Successfully");

        }
  });

Answer 1

有一件事我想指出:medicalObj 将是一个对象数组。我想你会想要将 jobName: andrea 添加到包含在作业中的特定数组中，所以这就是我在测试中所做的:

Exercise.findOne({area: area}, function(e,r){
  r.medicalObj.forEach(function(demo){
    // the following line looks for the specific array to add jobName Andrea to.
    if (demo.demoName == "test") {
      demo.job.push({jobName: "Andrea"});
      r.save(function(err, res){
        console.log(err, res);
      });
  });
});

如果你只想插入 jobName: "Andrea"如果它不存在，你可以很容易地添加一个支票:

Exercise.findOne({area: area}, function(e,r){
  r.medicalObj.forEach(function(demo){
    if (demo.demoName == "test") {
      var found = false;
      demo.job.forEach(function(jobs){
        if (jobs.jobName == "Andrea") found == true;
      });
      if (found == false) {
        demo.job.push({jobName: "Andrea"});
        r.save(function(err, res){
          console.log(err, res);
        });
      };
    };
  });
});