Mongodb MongoosJS模式非空字符串

我有下面的模式定义：

var mongoose = require('mongoose');

var CategorySchema = new mongoose.Schema({
    name: {type: String, index: { unique: true }},
    description: String
});

module.exports = mongoose.model('Category', CategorySchema);

如何指定

名称

将不接受空字符串。

根据需要设置字段将完成以下操作：

var CategorySchema = new mongoose.Schema({
    name: {type: String, required: true, index: { unique: true }},
    description: String
});

var CategorySchema = new mongoose.Schema({
    name: {type: String, validate: /\S+/, index: { unique: true }},
    description: String
});

另一个选项是添加验证正则表达式，如下所示：

var CategorySchema = new mongoose.Schema({
    name: {type: String, required: true, index: { unique: true }},
    description: String
});

var CategorySchema = new mongoose.Schema({
    name: {type: String, validate: /\S+/, index: { unique: true }},
    description: String
});

根据需要设置字段将完成以下操作：

var CategorySchema = new mongoose.Schema({
    name: {type: String, required: true, index: { unique: true }},
    description: String
});

var CategorySchema = new mongoose.Schema({
    name: {type: String, validate: /\S+/, index: { unique: true }},
    description: String
});

另一个选项是添加验证正则表达式，如下所示：

var CategorySchema = new mongoose.Schema({
    name: {type: String, required: true, index: { unique: true }},
    description: String
});

var CategorySchema = new mongoose.Schema({
    name: {type: String, validate: /\S+/, index: { unique: true }},
    description: String
});

---

对于可选字符串，我使用了：validate://^$|\S+/对于可选字符串，我使用了：validate://^$|\S+/