node.js - Mongoose 需要一个基于另一个字段的一些枚举值的字段

Question

我有一个 Mongoose 模式 Employee。因为我想为员工存储一个与办公室相关的字段(电话号码)，前提是他/她有资格担任办公室，这仅适用于“高级”和“c 级”两个级别。

架构:

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
var EmployeeSchema = new Schema({
    name: String,
    designation: String,
    level: {
        type: String,
        enum: ["intern", "junior", "mid-level", "senior", "c-level"],
        required: true,
    },
    phoneNo: { type: String, required: true },
    officePhoneNo: { type: String, required: true } // How to require only if the level is senior or c-level?,
});

感谢您的帮助。

谢谢

Answer 1

在 Mongoose 中，您可以在 required 中传递一个函数，该函数可以根据某些条件返回 true/false。

也可以将一个字段的 required 依赖于其他字段，在您的情况下是 level 。也就是说，您可以选择性地要求一个字段。方法如下:

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const levels = ["intern", "junior", "mid-level", "senior", "c-level"];
const levelsEligibleForOffice = ["senior", "c-level"];

var EmployeeSchema = new Schema({
    name: String,
    designation: String,
    level: {type: String, enum: levels, required: true},
    phoneNo: {type: String, required: true},
    officePhoneNo: {type: String, required: isEligibleForOffice}
});


function isEligibleForOffice(){
    if(levelsEligibleForOffice.indexOf(this.level) > -1){  //"this" contains the employee document at the time of required validation
        return true;
    }
    return false;
}