让我们说我有一个评论架构。评论可以有几个回复。如何创建虚拟属性来转换每个回复的created_at
日期? moment(this.replies.[currentReplyIndex].created_at).format('lll')
const Comment = new mongoose.Schema({ // sort: new to old by created_at
body: String,
replies: [{
body: String,
created_at: {
type: Date,
default: Date.now
}
}]
});
我不知道如何使用对象子文档结构数组来完成此操作。
答案 0 :(得分:4)
您需要单独定义子文档:
var Reply = new mongoose.Schema({
body: String,
created_at: {
type: Date,
default: Date.now
}
});
// Virtual must be defined before the subschema is assigned to parent schema
Reply.virtual("created_at").get(function() {
// Parent is accessible
// var parent = this.parent();
return moment(this.created_at).format('lll');
});
var Comment = new mongoose.Schema({
body: String,
replies: {
type: [Reply]
}
});