动态检查mongoose模式中的字段名

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

const MySchema = new Schema({
  // 定义字段
  name: String,
  age: Number
});

// 定义预处理中间件
MySchema.pre('save', function(next) {
  // 获取字段名
  const fieldName = this.schema.paths[this.$__.path].path;

  // 动态检查字段名
  if (fieldName !== 'name' && fieldName !== 'age') {
    throw new Error('Invalid field name');
  }

  next();
});

const MyModel = mongoose.model('MyModel', MySchema);

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

const MySchema = new Schema({
  // 定义字段
  name: {
    type: String,
    validate: {
      validator: function(value) {
        // 动态检查字段名
        return value === 'name';
      },
      message: 'Invalid field name'
    }
  },
  age: {
    type: Number,
    validate: {
      validator: function(value) {
        // 动态检查字段名
        return value === 'age';
      },
      message: 'Invalid field name'
    }
  }
});

const MyModel = mongoose.model('MyModel', MySchema);