Question

我是蒙哥的新手。我需要在MongoDB模型中更新一个嵌套字段。这是我的代码：-

const employee = await empModel.searchData(Query);

countryArray.push({lang: 'eng', result 100});

countryArray.push({lang: 'german', result 99});

employee[0].country = countryArray;

employee[0].markModified('country');

employee[0].save();

empModel的架构：

onst mongoSchema = new Schema({
  empId: [{
    type: Schema.Types.ObjectId
  }],
  country:[{
    lang:String,
    result:Number
  }],
  projectId: {
    type: String,
    required: true
  }
});

Answer 1

使用简单的更新查询代替查找和更新

static async updateData(query, countryArray) {
  const updateData= await this.update(query, { $set: { country: countryArray }});  
  console.log(updated successfully')
  return 'Updated successfully'
}

const countryArray = []
countryArray.push({lang: 'eng', result 100})
countryArray.push({lang: 'german', result 99})
const update = await empModel.updateData(Query, countryArray)

Save（）不保存嵌套属性

1 个答案: