Mongo 仅以 ISO_8601 格式而不是 unix 格式存储日期

Question

我正在尝试以 UNIX 格式存储在集合中，但它每次都以 ISO_8601 格式存储。下面是我的代码，你能快速浏览一下并告诉我哪里错了吗？

var date = Date.now();

var comments = new Comments({
    item_id : req.params.item_id,
    content : req.body.content,
    created_at: date,
    updated_at : "",
    is_deleted : 0
});

评论架构

var CommentsSchema = new Schema({
    content: {type: String},
    item_id: {type: Number},
    created_at: {type: Date, default: Date.now},
    updated_at: {type: Date, default: Date.now},
    is_deleted: Number
});

但是当我 console.log() comments 对象中的内容时，其显示日期为 ISO_8601 格式。我什至尝试使用 moment js 来实现相同但徒劳无功。

Answer 1

Mongoose v4.x has time stamping as a built-in option to a schema

var mySchema = new mongoose.Schema( {key:keyType,}, {timestamps: true} );

var CommentsSchema = new Schema({
    content: {type: String},
    item_id: {type: Number},
    is_deleted: Number
},{timestamps: true});

This option adds createdAt and updatedAt properties that are timestamped with a Date, and which does all the work for you. Update request updates the document, it updates the updatedAt property

例子

var thingSchema = new Schema({..}, { timestamps: { createdAt: 'created_at' } });
var Thing = mongoose.model('Thing', thingSchema);
var thing = new Thing();
thing.save(); // `created_at` & `updatedAt` will be included

By default, the name of two fields are createdAt and updatedAt, custom the field name by setting timestamps.createdAt and timestamps.updatedAt.

有关详细信息，请参阅 document

Answer 2

如果您想在数据库中存储时间戳，您应该在架构中使用 type : Number，而不是 type : Date。

否则，当从数据库中读取数据时，Mongoose 会自动将时间戳转换为正确的 Date 实例（尽管您仍然可以使用 doc.created_at.getTime() 从中提取时间戳）。

Mongo 仅以 ISO_8601 格式而不是 unix 格式存储日期

Mongo is only storing date in ISO_8601 format instead of unix

unix

iso8601

mongodb

node.js