Message = new Schema
type: String
body: Schema.Types.Mixed
sender: { type: String, enum: ['machine', 'profile'], default: 'machine' }
created_at: { type: Date, default: Date.now }
updated_at: { type: Date, default: Date.now }
クエリのMongoDB:created_atとし、送信者グループ
> db.messages.find({},{created_at: 1, sender: 1, _id: 0})
戻り
{ "created_at" : ISODate("2016-08-20T08:31:59.890Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-20T08:32:00.256Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-20T08:32:24.908Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-19T08:32:24.960Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-19T08:33:36.456Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-19T08:33:36.551Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-19T08:50:19.331Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-19T08:50:19.643Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-19T08:50:29.638Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-18T08:50:30.326Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-18T08:50:40.996Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-17T08:50:42.431Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-17T08:50:48.606Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-17T08:50:49.709Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-17T08:50:51.163Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-16T08:51:26.154Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-16T08:51:26.186Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-16T08:51:26.714Z"), "sender" : "machine" }
{ "created_at" : ISODate("2016-08-15T08:53:36.383Z"), "sender" : "profile" }
{ "created_at" : ISODate("2016-08-15T08:53:37.798Z"), "sender" : "machine" }
。
例えば:日付= 2016年8月15日と送信者=プロファイルでは、カウント= 2
配列:
profile: [{ 2016-08-12: 10}, { 2016-08-13: 10} , { 2016-08-14: 5}]
machine: [{ 2016-08-12: 10}, { 2016-08-13: 10} , { 2016-08-14: 5}]
はモンゴフレンドリーなフォーマットでそれを起草とが必要です