MongoDB中插入空日期

邮件架构：

var mail = new mongoose.Schema({
    globalId: {type: String, index: true, unique: true},
    from: {type: String, required: true},
    beginDate: {type: Date, required: true},
    endDate: {type: Date},
    source: {type: String},
    address: {type: String},
    subject: {type: String, required: true},
    text: {type: String},
    note: {type: String},
    files: [
        {
            fileName: {type: String},
            fileSize: {type: Number},
            fileType: {type: String}
        }
    ]
});

当我尝试保存新邮件与结束日期为空，我有以下错误

Mail validation failed: endDate: Cast to Date failed for value "null"

它看起来像你要保存的模式与一个无效的结束日期。

如果你不希望保存的日期只是离开它，从对象。比如你需要为你的模式至少是：

const newMail = mail.create({
    globalId: "1234",
    from: "Jack",
    begineDate: new Date(),
    subject: "Random subject",
});

如果你试图做这样的事情，

endDate: null

因为它是期待一个Date()对象或什么都没有，这将失败。